SK海力士 (000660.KS) 深度研究 — 商品DRAM引擎與倍數之爭

The commodity-DRAM engine, priced as a structural HBM story商品 DRAM 才是這輪暴利的引擎；共識已把 2028 畫成高原，剩下的戰場只是倍數

Start with what's actually moving the profit line: plain old commodity DRAM. Contract prices for conventional DRAM jumped +93~98% quarter-on-quarter in 1Q26, and another +58~63% in 2Q26E — while HBM contract prices, the part everyone talks about, actually fell over the same stretch. The number carrying this whole profit boom is the one that historically snaps back fastest.

先講清楚真正在推動獲利的是什麼：是最普通的商品 DRAM。1Q26 conventional DRAM 合約價季增 +93~98%，2Q26E 再漲 +58~63% — 反而是大家都在談的 HBM，同一段時間合約價是下跌的。撐起這整波獲利的這個數字，恰好是歷史上最容易均值回歸的那個。

Sell-side has already quietly drawn the ceiling: consensus operating profit sits at ₩386tn for 2027 and ₩383tn for 2028 — basically flat. Even the analysts who are bullish won't extrapolate growth past next year. This analysis goes further and models 2027E OP at ₩300tn, another 22% below that.

賣方自己其實已經悄悄畫出天花板了：共識 2027 年營業利益 ₩386兆、2028 年 ₩383兆 — 幾乎是持平的兩個數字。連看多的分析師都不敢把成長線繼續往 2028 拉。本研究比共識更保守，2027E OP 估在 ₩300兆，再低 22%。

And the two ways of valuing this stock don't agree with each other. After the -37.0% pullback off the June peak, forward PER has come down to about 5.9× on consensus numbers, 6.4× on this analysis's own — cheap by any AI-stock standard. But PBR still reads 8.1×, and the average target price across 37 sell-side analysts, ₩3,408,502, sits +81% above where the stock trades today. Price action and analyst opinion are pulling in very different directions right now.

而這檔股票的兩套估值語言彼此對不上。從 6 月高點 -37.0% 修正之後，forward PER 用共識算約 5.9×、用本研究自己的估值算 6.4× — 放在任何一檔 AI 股裡都算便宜。但 PBR 卻仍高達 8.1×，37 位賣方分析師的平均目標價 ₩3,408,502，還掛在現價之上 +81%。股價的走法，跟分析師的看法，現在是兩條不同的路。

Key considerations主要考量

(1) The engine behind 2026's windfall is the price of conventional DRAM, not the structure of HBM. Conventional DRAM contract prices rose +93~98% in 1Q26 while HBM contract prices fell; DDR5 profitability actually overtook HBM3E in 2026, exactly as TrendForce called it back in October 2025 — and the company itself slowed its own HBM4 conversion line to chase the fatter commodity margin instead. Pricing the most cyclical variable in the industry as if it were a permanent structural story is the biggest mismatch of this whole cycle.

(1) 2026 這波暴利，引擎其實是 conventional DRAM 的「價格」，不是 HBM 的「結構」。1Q26 conventional DRAM 合約價漲 +93~98%，同期 HBM 合約價卻在跌；DDR5 的獲利性 2026 年真的超車了 HBM3E，正好應驗 TrendForce 早在 2025 年 10 月的預測 — 而公司自己也放慢了 HBM4 轉線，轉去追更肥的商品毛利。把產業裡最循環性的變數，當成一個永久的結構故事來定價，是這輪循環裡最大的錯位。

(2) The supply response to all this has already been paid for. Between the company's own $26.5B ADS raise, ₩30.9tn of newly-committed capital spending, and Samsung/Micron/CXMT all expanding at the same time, the 2027-29 supply wave isn't a hypothetical risk scenario anymore — it's a funded construction schedule with dates attached.

(2) 供給端的反應已經全額付款了。自家 $26.5B 增資、新增 ₩30.9兆資本承諾，加上三星、美光、CXMT 同時擴產 — 2027-29 的供給波已經不是假設情境，是一張標好日期、已經簽約的工程進度表。

(3) But the bears don't have a clean edge either. After a -37% reset, forward PER of 5.9-6.4× is already close to a peak-discount, there's ₩75tn of pro-forma net cash sitting on the balance sheet, HBM share at 56.4% hasn't cracked, and the 2Q26 print on 7/29 is likely to extend an 11-quarter beat streak. So the variant call here isn't "short it" — it's that both tails are fatter than the sell-side's +81% average target implies, which is why this analysis lands on range-bound and waits for a disciplined entry rather than picking a direction.

(3) 但空方也沒有乾淨的 edge。-37% 修正後，forward PER 5.9-6.4× 已經接近 peak-discount，帳上還躺著 ₩75兆淨現金，HBM 份額 56.4% 還沒被攻破，7/29 的 2Q26 財報大概率延續連 11 季 beat。所以這裡的變異結論不是「做空」— 是兩條尾巴都比賣方平均目標價 +81% 所暗示的更肥，這正是為什麼本研究落在「區間」，用紀律等進場，而不是硬押方向。

TP:目標價： This analysis models 2026/2027 EPS at ₩295,000/₩327,000; 6-month target price ₩1,960,000, based on 2027E EPS ₩327,000 × 6× PER. The AI-era forward PER band runs roughly 4–10×; a below-median 6× is granted because this analysis expects the market to begin pricing a 2028 profit rollover starting 2H27 — memory names historically compress the multiple 6-12 months ahead of the earnings peak. 本研究預估 2026、2027 年 EPS 為 ₩295,000、₩327,000，目標價 ₩1,960,000（6 個月），基於 2027E EPS ₩327,000 × 6 倍 PER；AI 世代 forward PER 區間約 4–10 倍，給予中值以下的 6 倍係因：本研究預估 2H27 起市場將開始定價 2028 獲利動能轉平/轉負，記憶體股歷史上在獲利見頂前 6–12 個月先行壓縮倍數。

Risk factors: China's annual VEU licensing review · a Samsung HBM4 same-price war · the 2027 supply wave · won/KOSPI concentration risk.

風險因子：中國 VEU 年審 · 三星 HBM4 同價戰 · 2027 供給波 · 韓元/KOSPI 集中度。

Sources for this section (consolidated here instead of inline): price & valuation = IBKR snapshot + computed (07-23) · contract prices = TrendForce (03-31/06-01) · consensus = FnGuide (07-10) / S&P Global via stockanalysis (07-22) · financials = SEC 424B4 (07-10) · estimates, TP and view = this analysis ◆. Per-number ledger: see the Sources section.本節出處（統一註記於此，不逐句插標）：價格與估值＝IBKR 快照＋本研究計算（07-23）· 合約價＝TrendForce（03-31/06-01）· 共識＝FnGuide（07-10）／S&P Global via stockanalysis（07-22）· 財務＝SEC 424B4（07-10）· 預估、目標價與觀點＝本研究判斷 ◆。逐數字查證表見〈資料來源〉章。

Business & technology事業與技術

Finding: DRAM is 77.3% of revenue, and the mix has shifted 10pp toward it in two years. The 1Q26 424B4 breakdown shows DRAM 77.3% (₩40.66tn), NAND 22.0% (₩11.57tn), other 0.7% ✓ 424B4. FY25 was DRAM 77.1%/NAND 21.3%; FY24 was 67.6%/29.1% ✓ 424B4 — the swing toward DRAM is driven by HBM and server DDR5, not NAND.

發現：DRAM 佔營收 77.3%，且兩年內組合已向 DRAM 位移 10 個百分點。1Q26 424B4 揭露 DRAM 77.3%（₩40.66兆）、NAND 22.0%（₩11.57兆）、其他 0.7% ✓ 424B4。FY25 為 DRAM 77.1%/NAND 21.3%；FY24 為 67.6%/29.1% ✓ 424B4 — 向 DRAM 位移主因是 HBM 與伺服器 DDR5，不是 NAND。

Segment mix (T5)產品組合（T5）

Segment段別	FY25 revFY25 營收	% of total占比	FY26E	% of total占比	YoY
DRAM	₩74.90兆 ✓	77.1%	₩272兆 ◆	78.4% ◆	+263% ◆
NAND	₩20.69兆 ✓	21.3%	₩73兆 ◆	21.0% ◆	+253% ◆
Other其他	₩1.55兆 ✓	1.6%	₩2兆 ◆	0.6% ◆	—

Value chain價值鏈

Upstream: equipment/materials (ASML EUV, Applied Materials, etc.) → SK hynix (IDM: design + manufacturing + packaging) → customers: NVIDIA(NVDA.O) at 14.8% of 1Q26 revenue (₩7.78tn) ⚠ reported ratio, secondary轉述比例, an undisclosed North American hyperscaler crossing 10% for the first time at 12.4% ⚠, plus CSPs and server OEMs broadly. Pull HBM out of the chain and GPUs cannot ship — but pricing power sits inside long-term agreements, not a spot auction.

上游：設備/材料（ASML EUV、應材等）→ SK海力士（IDM：設計+製造+封裝）→ 客戶：NVIDIA(NVDA.O) 1Q26 佔營收 14.8%（₩7.78兆）⚠ 轉述比例，某北美超大規模客戶首度 >10%，佔 12.4% ⚠，加上廣泛的 CSP 與伺服器 OEM。HBM 抽掉，GPU 就無法出貨 — 但議價力在長約裡，不在現貨拍賣。

Unit economics單位經濟

Contract price leads, spot is a sideshow. 1Q26 companywide OPM 72% ✓; DRAM ASP rose mid-60%s QoQ ✓ TrendForce. HBM4 12-layer parts are reported above $600/unit, yet HBM contract price fell in 1Q26 — suppressing ASP growth even as headline unit prices climb ⚠✓.

合約價為主、現貨為輔。1Q26 全公司 OPM 72% ✓；DRAM ASP 單季 +mid-60% QoQ ✓ TrendForce。HBM4 12層報導單價 >$600/顆，但 HBM 合約價 1Q26 反而下跌 — 壓抑 ASP 成長,即使頭條單價在漲 ⚠✓。

HBM cross-section — the physical stack next to the GPUHBM 剖面 — GPU 旁的堆疊結構

✓ SK hynix newsroom + EETimes MR-MUF's thermal bumps run ~4× denser than TC-NCF, the differentiator behind SK hynix's HBM lead. HBM4E 12-layer samples shipped 2026-06-18 at 16Gbps/pin, 48GB/stack.MR-MUF 熱阻尼凸塊密度較 TC-NCF 多約 4 倍，是 SK海力士 HBM 領先的差異化來源。HBM4E 12 層樣品已於 2026-06-18 出樣，規格 16Gbps/pin、48GB/stack。

Demand transduction chain — what actually turns into volume需求傳導鏈 — 什麼會放量

Agentic-AI token consumption is exploding → inference compute deployment (GPU+ASIC) → three channels absorb it (HBM4 content per GPU, high-capacity server DDR5, eSSD) → CSPs lock in long-term agreements out of shortage fear → contract prices spike → operating margin runs 72%→77%. Structural vs cyclical verdict: the volume expansion is structural, but 2026's profit explosion is driven mainly by price, not volume — conventional DRAM contract price rose +93~98% QoQ in 1Q26 and +58~63% in 2Q26E ✓ TrendForce — and price is the most mean-reverting variable in this industry.

Agentic AI（代理式 AI）token 消耗爆炸 → 推論算力部署（GPU+ASIC）→ 三通道吸收：每 GPU HBM4 搭載量、伺服器高容量 DDR5、eSSD → CSP 因恐懼短缺而鎖長約 → 合約價飆漲 → 營益率 72%→77%。結構 vs 循環判定：放量是結構的，但 2026 獲利爆發的主力是「價格」而非「量」— conventional DRAM 合約價 1Q26 QoQ +93~98%、2Q26E +58~63% ✓ TrendForce — 而價格是這個產業裡最會均值回歸的變數。

Volume growth (top: HBM4/DDR5/eSSD, ✓ sourced per the grounding table) is real, but the swing factor behind 2026's margin is the price box in amber — the most cyclical link in the chain.放量（上排：HBM4/DDR5/eSSD，均有來源，詳資料來源章節）是真的，但撐起 2026 獲利的擺動因子是琥珀色的價格區塊 — 整條鏈裡最循環性的一環。

編輯示意圖：無數token符號如洪流般湧向一排排伺服器機櫃，象徵AI推論需求對記憶體的壓力 — AI-generated illustration of token demand flooding into server racks.AI 生成示意圖：token 需求洪流湧向伺服器機櫃。

✓ newsroom 2026-07-22 · IEDM 2025官方newsroom 2026-07-22·IEDM 2025Latest research: CTI — a new partition for NAND scaling最新研究：CTI — NAND 微縮的新隔板

NAND scaling has shifted from "stack higher" to "shrink the cell at the same stack height, then pack more layers" — but tighter cell spacing causes electrical interference: electrons drift between neighboring cells, shifting the threshold voltage (Vth) and causing read errors. SK hynix's NAND stores charge in a CTN (charge trap nitride) layer, which has traditionally run as one continuous film — the company's own metaphor: "a long table with no partitions, where books (electrons) slide into the neighboring seat." CTI adds the partition.

NAND 微縮已從「疊更高」轉向「同高度內縮小 cell、加密層數」，但 cell 間距縮小 → 電場互擾、電子游移 → 閾值電壓（Vth）漂移、讀取錯誤。SK 的 NAND 用 CTN（charge trap nitride，把電子存在絕緣氮化層）— 傳統上 CTN 是連續層，官方比喻：「沒有隔板的長桌，書（電子）會滑到鄰座」。CTI＝加隔板。

The industry has tried for 10+ years without reaching production: traditional isolation etches pockets, which widens the channel hole and cuts pore density per unit area, plus uneven etching. SK hynix instead deposits an oxide barrier and then backfills the CTN — no etching, no pore-widening — achieving, for the first time industry-wide, isolation on a 176-layer production-grade device: cell-to-cell interference down 30%+, charge retention up 45%+, and cell size shrunk a further 10%+ (all company-stated research results) ✓ 官方newsroom 07-22·IEDM 2025.

業界研究 10 餘年未能量產：傳統 CTI 靠蝕刻挖口袋 → channel hole 變寬 → 單位面積孔數變少、密度受損，加上蝕刻不均。SK 改以沉積氧化屏障後回填 CTN — 不蝕刻、不撐孔 — 業界首次在 176 層生產級元件實現隔離：cell 間干擾 -30%以上、電荷保持力 +45%以上、cell 尺寸再縮 >10%（皆公司自述之研究成果）✓ 官方newsroom 07-22·IEDM 2025。

This is a research milestone on the path toward production, not a shipping product; the three result figures above are the company's own self-reported research data, not independently audited.屬研究里程碑（邁向量產），非出貨中產品；成果數據為公司自述。

In other words: retention and interference improvement is exactly the property QLC — 4 bits/cell, 16 Vth states, the narrowest margin between states — needs most → this directly supports Solidigm/eSSD's AI-storage story and the durability of its cost/GB curve.

換言之：保持力/干擾改善正是 QLC（4 bit/cell、16 個 Vth 態、分布最窄）最需要的特性 → 直接支撐 Solidigm/eSSD 的 AI 儲存故事與 cost/GB 曲線延續。

✓ SK hynix newsroom "Inside the Research" Ep.1 (2026-07-22) Schematic, not to lithographic scale — three stacked cells shown for clarity.示意圖，非微影比例尺 — 為求清楚僅畫出三層堆疊示意。資料來源：SK hynix newsroom「Inside the Research」Ep.1（2026-07-22）。

Moat & leading indicators護城河與領先指標

Moat 1 — HBM stacking know-how, locked in with NVIDIA護城河一 — HBM 堆疊 know-how，靠 NVIDIA 共同開發鎖住

Mechanism: proprietary MR-MUF stacking yield and thermal performance, formalized through a multi-year NVIDIA(NVDA.O) co-development agreement (announced 2026-06-08, value undisclosed) — the pairing that underwrites 56.4% 1Q26 HBM share (IDC, via 424B4) ✓.

機制：MR-MUF 堆疊良率與散熱表現的專有技術，透過與 NVIDIA(NVDA.O) 多年期共同開發協議（2026-06-08 宣布，金額未揭露）正式綁定 — 這正是 1Q26 HBM 份額 56.4%（IDC，引自 424B4）✓ 的支撐。

What it takes to break it: a rival must match the thermal/yield performance at production scale and win an equivalent co-design lock-in with NVIDIA — shipping one qualifying part isn't enough.

要打破它需要什麼：對手得同時做到量產級的散熱／良率表現，而且要贏得跟 NVIDIA 同等級的共同設計綁定 — 光是出貨一顆合格產品還不夠。

Erosion tripwire: Samsung's HBM4 is seeking price parity with SK (vs a ~30% discount in the HBM3E era) ✓ TrendForce — parity would mean the premium this moat commands is gone even while share holds.

侵蝕觸發點：三星 HBM4 正尋求與 SK 同價（HBM3E 時代低約 30%）✓ TrendForce — 一旦同價，即便份額未失，這道護城河能收的溢價也已經不在了。

Moat 2 — the oligopoly protects the industry, not the ticker護城河二 — 寡占結構保護的是產業，不是這檔股票

Mechanism: a three-player DRAM/HBM oligopoly with capex-scale barriers to entry; management told the 1Q26 call "customer demand already exceeds planned capacity for the next three years." That protects industry-wide pricing power, but not necessarily SK's own share — Samsung's HBM4 reached mass production in 2026-02 (>$1B in 4 months) and Micron's HBM3E+HBM4 is booked through 2027 ✓ TrendForce, both inside the same three-player structure.

機制：三寡占的 DRAM/HBM 產業結構，進入門檻是資本規模；管理層在 1Q26 法說會表示「客戶需求已超出未來三年的規劃產能」。這保護的是整個產業的定價權，不必然是 SK 自己的份額 — 三星 HBM4 已在 2026-02 量產（4 個月營收破 $1B）、美光 HBM3E+HBM4 訂到 2027 ✓ TrendForce，兩者都站在同一個三寡占結構裡。

What it takes to break it: a fourth player reaching qualified, at-scale volume — not just capital, but years of yield-learning inside a structure the incumbents already occupy.

要打破它需要什麼：要有第四家玩家做到合格且量產的規模 — 不只是資本，還得在既有三家已站穩的結構裡，走完多年的良率學習曲線。

Erosion tripwire: CXMT (長鑫存儲, newly listed in 2026) raised ₩14tn for next-gen DRAM/HBM ✓ ebn — this moat only erodes once CXMT actually crosses from commodity DRAM into qualified HBM volume.

侵蝕觸發點：CXMT（長鑫存儲，2026 甫上市）IPO 募 ₩14兆投入次世代 DRAM/HBM ✓ ebn — 這道護城河，只有在 CXMT 真正從商品 DRAM 跨進合格 HBM 量產時，才會開始被侵蝕。

Leading indicators — where to check this yourself領先指標 — 在哪裡自己查

Indicator指標	Where to check去哪看	Current reading目前讀數	Threshold → meaning門檻 → 意義 ◆
Conventional DRAM contract priceConventional DRAM 合約價	TrendForce monthly/quarterly reportsTrendForce 月度/季度報告	2Q26E +58~63% QoQ ✓	flattens or turns down → the plateau has begun轉平/轉跌 → 高原開始
HBM market shareHBM 市場份額	Counterpoint / IDC quarterly reports季度報告	56.4% (1Q26)56.4%（1Q26） ✓	below 50% for two straight quarters → the moat-invalidation condition連兩季 <50% → 護城河失效條件
Samsung/Micron HBM4 shipments & pricing language三星/美光 HBM4 出貨與定價語言	their own earnings calls + TrendForce coverage兩家法說會 + TrendForce 報導	Samsung >$1B in 4 months, seeking price parity三星4個月營收>$1B、尋求同價 ✓	parity achieved → the premium thesis dies達成同價 → 溢價論死亡
CSP/customer capex guidanceCSP/客戶 capex 指引	MSFT/GOOG/AMZN/META quarterly earnings calls季度法說會	reported Microsoft-scale LTAs微軟等長約傳聞 ⚠	guidance turns cautious → the demand-transduction chain breaks轉弱 → 需求傳導鏈斷點
TSMC CoWoS advanced-packaging allocationTSMC CoWoS 先進封裝配分	TSMC capacity/capex disclosures台積電產能/資本支出揭露	FY27 split not yet disclosedFY27 分配尚未公布 ◆	the split becomes clear → the upstream confirmation for ASIC volume ramping分配明朗化 → ASIC 放量的上游確認

Recombined from facts already established in §Business and §Bear — no new claims introduced here.皆重組自事業與空方章節已列出的查證事實 — 本節未引入新主張。

Bull case多方論點

The shortage is still accelerating, not peaking短缺仍在加速，不是見頂

2Q26E consensus OP ₩64.2tn (+71% QoQ), OPM 76.5% ✓ FnGuide via ggilbo 07-20; TrendForce's 2Q contract price +58~63%, mobile DRAM also rising ✓; NAND has "almost zero new capacity in 2026" ✓ TrendForce 05-25. Already inside guidance/consensus.

2Q26E 共識 OP ₩64.2兆（+71% QoQ）、OPM 76.5% ✓ FnGuide via ggilbo 07-20；TrendForce 2Q 合約價 +58~63%，行動 DRAM 也在漲 ✓；NAND「2026 幾乎零新增產能」✓ TrendForce 05-25。已在指引/共識內。

Three-year visibility三年能見度

2026 DRAM+NAND fully sold out (official 3Q25 language) + customer demand already exceeds planned capacity for the next three years (1Q26 call) + a reported 3-year Microsoft DDR5 LTA ✓⚠. Partially in the price.

2026 DRAM+NAND 全量售罄（官方 3Q25 語言）+ 客戶需求超出未來三年規劃產能（1Q26 法說）+ 微軟三年 DDR5 長約（轉述）✓⚠。部分在價內。

HBM4 dominanceHBM4 主導

NVIDIA(NVDA.O)'s Rubin generation share reportedly ~2/3 for SK, above the originally expected 50%+ ✓ TrendForce 01-28, reported轉述; HBM4E samples already shipped. In the price.

NVIDIA(NVDA.O) Rubin 世代 SK 份額 ~2/3（報導估計，高於原預期 50%+）✓ TrendForce 01-28,轉述；HBM4E 已出樣。在價內。

What's genuinely underappreciated真正被低估的

1. Book-value compounding — if consensus-level profit lands, FY27-end BVPS reaches ~₩834,000 ◆, so today's price is only 2.2× two years out; the "expensive" 8.1× PBR self-resolves as retained earnings pile up. 2. A pro-forma net-cash fortress of ~₩75tn (1Q26 net cash ₩35tn + ADS net proceeds ~₩40tn) ◆ — ammunition for M&A/buybacks at the next cycle trough. 3. If agentic-AI inference token economics still have runway, as a Bank of Korea report suggests ✓ daum/BOK, reported轉述 07-19, the 2028-plateau assumption is actually too conservative.

1. 帳面價值複利 — 若共識級獲利落地，FY27 末 BVPS 約 ₩834,000 ◆，現價僅 2.2× 兩年後帳面，8.1× PBR 的「貴」會被保留盈餘自我消解。2. 淨現金堡壘 pro-forma ~₩75兆（1Q26 淨現金 35兆 + ADS 淨額 ~40兆）◆ — 下輪景氣谷底的併購/加碼火藥。3. 代理式 AI 推論的 token 經濟若如韓國央行(BOK)報告所言仍有續航 ✓ daum/BOK轉述 07-19，2028 平原假設反而太保守。

Bear case空方論點

Structured as fear → company claim → independent evidence → this analysis's judgment, held with equal weight against the bull case above.

結構：恐懼 → 公司說法 → 獨立證據 → 本研究判斷，與上方多方論點同等權重。

Fear: cycle-top恐懼：高點論

고점론 (cycle-top). Five weeks after the 2026-06-26 intraday peak of ₩2,987,000, the stock is -38%; -8.4% in a single session on 7/2; CXMT news plus AI-capex worries triggered another leg down on 7/16 ✓ sedaily/ebn.

고점론（cycle-top）。2026-06-26 見 ₩2,987,000 後 5 週 -38%；7/2 單日 -8.4%；7/16 CXMT+AI capex 疑慮再殺一波 ✓ sedaily/ebn。

Company's claim公司說法

Three-year visibility, sold out, "the favorable pricing environment continues" ✓ 1Q26 release.

三年能見度、售罄、「有利價格環境延續」✓ 1Q26 release。

Independent evidence獨立證據

HBM contract price already fell in 1Q26, hitting SK's ASP ✓ TrendForce
The company itself slowed its HBM4 conversion line — full-year shipment target cut from 4.5 to 4B Gb — to chase commodity margin instead: management voting with its feet on where the excess profit really is ✓ TrendForce 06-23, reported轉述
The supply wave is already funded: M15X tape-out 1Q26, Yongin fab-1 cleanroom 1Q27 (₩9.4tn), P&T7 late-2027 (₩19tn), Indiana 2H28 (₩5.9tn), a Cheongju NAND plant 2029 ⚠ single-source單源; unrecognized capital commitments jumped from ₩6.7tn to ₩30.9tn quarter-over-quarter ✓ 424B4; plus Samsung expansion, Micron running full, and CXMT's ₩14tn raise
Issuing $26.5B of new shares at a 9.4× peak PBR is a textbook cycle-top signal — management selling stock when its own shares are most expensive
Foreign ownership has been a full-year net seller (53.8%→49.9%) ✓ ajunews

HBM 合約價 1Q26 已下跌，衝擊 SK ASP ✓ TrendForce
公司自己放慢 HBM4 轉線 — 全年出貨目標自 4.5 下修至 4B Gb — 轉去追商品毛利：管理層用腳投票告訴你超額利潤在哪裡 ✓ TrendForce 06-23,轉述
供給波已被融資完成：M15X 1Q26 投片、Yongin 一廠 1Q27 無塵室（₩9.4兆）、P&T7 末-2027（₩19兆）、Indiana 2H28（₩5.9兆）、清州 NAND 廠 2029 ⚠ 單源；未認列資本承諾單季自 ₩6.7兆跳升至 ₩30.9兆 ✓ 424B4；加上三星擴產、美光滿載、CXMT ₩14兆增資
在 9.4× 峰值 PBR 上增發 $26.5B 新股 — 教科書級的循環頂部訊號（管理層在自己股票最貴時賣股票）
外資全年淨減持（53.8%→49.9%）✓ ajunews

This analysis's judgment & tail risks本研究判斷與尾部風險

2027 "plateau" is more probable than "cliff" (LTAs cushion 1H27), but consensus 2027E OP of ₩386tn runs too high — this analysis's own 2027E OP is ₩300tn (-22% vs consensus). The cliff risk has largely migrated to 2028.

2027「高原」比「懸崖」機率高（長約鎖價緩衝 1H27），但共識 2027E OP ₩386兆過高 — 本研究 2027E OP ₩300兆（-22% vs 共識）。懸崖風險主要遷移到 2028。

Tail risks: China's annual VEU licensing regime (Wuxi DRAM/Dalian NAND equipment licenses renewing yearly starting 2026) ✓ CNBC 2025-12-30; the scope of Section 232 semiconductor tariffs remains unsettled ⚠ conflicting sources來源衝突; won/KOSPI concentration (SK + Samsung = 54.8% of KOSPI market cap) ✓ g-enews 06-25.

尾部風險：中國 VEU 年審制（無錫 DRAM/大連 NAND 設備許可 2026 起逐年續）✓ CNBC 2025-12-30；Section 232 半導體關稅範圍未定 ⚠ 來源衝突；韓元、KOSPI 集中度（SK+三星＝54.8% KOSPI 市值）✓ g-enews 06-25。

Rebuttal structure反駁結構

The market's fear → the company's counter-claim → what independent evidence actually shows → this analysis's own judgment.市場的恐懼 → 公司的反駁說法 → 獨立證據實際顯示什麼 → 本研究自己的判斷。

The 2026-29 supply wave2026-29 供給波

The 2027-29 capacity additions land squarely inside the window consensus has drawn as a profit plateau — a shaded coincidence this analysis reads as evidence the wave is already priced to matter.2027-29 新產能落地時點，恰好落在共識自己畫出的獲利高原窗口內 — 這個重疊，本研究視為供給波確實有分量的佐證。

Variant perception變異認知

Consensus reads this stock as an HBM/AI structural growth name where "the PBR era is over," to be re-rated on P/E or SOTP instead — sell-side has broadly dropped PBR as a framework ✓ MTN 02-03, and iM Securities uses a 7.5× PBR to derive a ₩4.2M target for Mirae Asset ✓ newspim 06. What the market overlooks:

共識把本股讀成 HBM/AI 結構性成長股，「PBR 時代結束」，改用 P/E 或 SOTP 重估 — 券商紛紛棄用 PBR 框架 ✓ MTN 02-03，iM 證券用 7.5× PBR 推算未來資產目標價 ₩4.2M ✓ newspim 06月。市場忽略的：

This is not a fight over 2026-27 earnings direction — it's about which slice of the P&L (commodity price vs HBM structure) the market is using to justify the multiple, and whether the fully-funded 2027-29 supply wave is priced at all.這不是在爭 2026-27 的獲利方向 — 而是市場用哪一塊損益表（商品價格 vs HBM 結構）替倍數找理由，以及已全額付款的 2027-29 供給波，是否根本沒被定價。

The variant conclusion is not "short it": after the -37.0% reset, forward PER of 5.9-6.4× is already a peak-discount, pro-forma net cash runs ~₩75tn, HBM share of 56.4% is still unbroken, and the 2Q26 print (due 7/29) is likely to extend an 11-quarter beat streak. Both the bull tail (25% weight, ₩3,360,000) and the bear tail (30% weight, ₩1,000,000) are fatter than a simple "buy the dip" or "short the top" framing admits ◆ — which is exactly why this analysis lands on a range-bound view with a disciplined entry zone, not a directional call.

變異結論不是「做空」：-37.0% 修正後，forward PER 5.9-6.4× 已是 peak-discount，pro-forma 淨現金約 ₩75兆，HBM 份額 56.4% 未破，2Q26 財報（7/29）大概率延續連 11 季 beat。多方尾部（25% 權重，₩3,360,000）與空方尾部（30% 權重，₩1,000,000）都比單純「逢低買進」或「高點放空」的框架更肥 ◆ — 這正是本研究落在「區間」而非方向性判斷、並附紀律化進場區的原因。

Numbers, valuation & scenarios數字、估值與情境

₩tn except per-share (₩)₩兆，每股例外(₩)	FY25A	FY26E ◆	FY27E ◆
Revenue營業收入	97.15	347	388
Operating profit營業利益	47.21	258	300
Operating margin營益率	48.6%	74.4%	77.3%
EPS (₩)	62,044	295,000	327,000
This analysis vs consensus (OP)本研究 vs 共識（營業利益）	—	-2.7%	-22.3%

FY26E = 1Q actual + 2Q consensus anchor + 2H extrapolation; FY27E = this analysis's own assumption. Consensus for the comparison row: FnGuide 07-10 (2026E OP ₩265.2tn / 2027E OP ₩386.1tn) ✓.FY26E = 1Q 實績 + 2Q 共識錨定 + 2H 外推；FY27E = 本研究自行假設。對照列共識來源：FnGuide 07-10（2026E OP ₩265.2兆／2027E OP ₩386.1兆）✓。

TP derivation目標價推導 ◆

This analysis models 2026/2027 EPS at ₩295,000/₩327,000; the 6-month target price is ₩1,960,000, based on 2027E EPS ₩327,000 × 6× PER. The AI-era forward PER band runs roughly 4–10×; a below-median 6× is granted because this analysis expects the market to begin pricing a 2028 profit rollover starting 2H27 — memory names historically compress the multiple 6-12 months ahead of the earnings peak.

本研究預估 2026、2027 年 EPS 為 ₩295,000、₩327,000，目標價 ₩1,960,000（6 個月），基於 2027E EPS ₩327,000 × 6 倍 PER；AI 世代 forward PER 區間約 4–10 倍，給予中值以下的 6 倍係因：本研究預估 2H27 起市場將開始定價 2028 獲利動能轉平/轉負，記憶體股歷史上在獲利見頂前 6–12 個月先行壓縮倍數。

◆ Cross-check: TP ₩1,960,000 ≈ 2.4× FY27E BVPS (₩834,000) — translated back into PBR's old language, this still sits at the high end of the historical range, not cheap; bear-case TP ₩1,000,000 ≈ 1.2× FY27E BVPS, close to the historical trough.

◆ 交叉檢驗：TP ₩1,960,000 ≈ 2.4× FY27E BVPS（₩834,000）— 回到 PBR 舊語言仍屬本輪高檔、歷史區間上緣，並不便宜；bear TP ₩1,000,000 ≈ 1.2× FY27E BVPS，貼歷史谷底。

◆ Anchor reconciliation: the probability-weighted scenario value is ₩2,022,000 — +7.4% vs the current price, and +3.2% above the ₩1,960,000 target. The canonical TP stays the base-case formula; the weighted figure running slightly higher reflects the 25% bull-tail weight, not a model inconsistency.

◆ 錨點調和：機率加權情境值為 ₩2,022,000 — 較現價 +7.4%，較目標價 ₩1,960,000 高 +3.2%。正式 TP 仍以基準情境公式為準；加權值略高，係因多方尾部權重 25% 所致，非模型不一致。

Top: the three scenarios by probability weight (base = the TP price). Bottom: the same three scenario prices plus the probability-weighted value (~₩2.02M, +7.4% vs current) and the current price (₩1,882,000) on a shared linear 0.8M–3.6M value axis.上：三個情境按機率權重呈現（基準情境＝目標價）。下：同樣三個情境價位，加上機率加權值（約₩2.02M，較現價+7.4%）與現價（₩1,882,000），畫在同一條 0.8M–3.6M 線性數值軸上。

Scenario情境	Prob.機率 ◆	Key assumptions關鍵假設	2027E path路徑	Scenario TP情境 TP
Bear cliffBear 懸崖	30%	Contract prices turn down starting 4Q26, -30% through 2027; AI-capex digestion year; CXMT/Samsung supply shock4Q26 起合約價轉跌、2027 全年 -30%；AI capex 消化年；CXMT/三星供給衝擊	rev ~₩300tn, OP ~₩180tn, EPS ~₩199,000rev~₩300兆,OP~₩180兆,EPS~₩199,000	199,000×5×=₩1,000,000 (-46.9%; ≈1.2× FY27E BVPS, near historical trough ~1×貼歷史谷底~1×)
Base plateauBase 高原	45%	LTAs cushion 1H27, gradual easing 2H27; 2027 OP 22% below consensus1H27 長約撐價、2H27 緩跌；2027 OP 較共識低 22%	rev ₩388tn, OP ₩300tn, EPS ₩327,000rev₩388兆,OP₩300兆,EPS₩327,000	327,000×6×=₩1,960,000 (+4.1%; =TP)
Bull continuationBull 續航	25%	Token demand absorbs all new capacity; 2027 consensus lands as-istoken 需求消化全部新產能；2027 共識成真	OP ₩386tn, EPS ~₩420,000OP₩386兆,EPS~₩420,000	420,000×8×=₩3,360,000 (+78.6%; ≈back above the June peak重回6月高點上方)

Probability-weighted value = 0.30×1,000,000 + 0.45×1,960,000 + 0.25×3,360,000 = ₩2,022,000 (+7.4% vs current). Current price ₩1,882,000 ≈ base EPS × 5.8×.

機率加權值 = 0.30×1,000,000 + 0.45×1,960,000 + 0.25×3,360,000 = ₩2,022,000（較現價+7.4%）。現價 ₩1,882,000 ≈ base EPS × 5.8×。

Asymmetry check不對稱性檢驗 ◆

To double from ₩1,882,000 (→₩3.76M, ≈₩2,743tn market cap) requires 2027 OP to reach at least consensus's ₩386tn and the multiple to expand to ~9× — profit and multiple both landing at the top edge of the bull scenario simultaneously, already beyond what management alone controls (price is set by industry supply/demand). To fall by half (→₩941k) corresponds to 2027 OP ~₩170tn at 5× — merely requires a price collapse arriving one year early. Both directions need the same single variable — price — to move to an extreme; this stock is, at its core, an option on the 2027 memory contract price.

翻倍（→₩3.76M ≈ 市值 ₩2,743兆）需要：2027 OP 至少達到共識 ₩386兆且倍數擴到 ~9× — 即獲利與倍數同時站上 bull 情境上緣，已超出管理層可控範圍（價格由產業供需決定）。跌一半（→₩941k）對應 2027 OP ~₩170兆 + 5× — 只需要價格崩盤提前一年到來。兩邊都需要「價格」這一個變數走極端 — 本股本質上是一張關於 2027 記憶體合約價的期權。

Catalysts (12mo, T8)催化劑（12個月，T8）

Timing時間	Event事件	Threshold → reaction門檻 → 反應 ◆	Status狀態
2026-07-29 09:00 KST	2Q26 earnings + call2Q26 財報+法說	OP ≥₩64tn and 2H pricing language not weakening → base case confirmed, view maintained; OP <₩60tn or guidance turns cautious → 2027E cut under review, bear weight revised upOP ≥₩64兆且 2H 價格語言未轉弱 → 基準情境確認、維持觀點；OP <₩60兆或指引轉保守 → 2027E 下修檢討、bear 機率上調	scheduled已排定
2026-08 late下旬	TrendForce 3Q26 contract pricesTrendForce 3Q26 合約價	conventional DRAM QoQ ≥+20% → shortage persists (bull tilt); flat/declining → plateau begins, 4Q26E cutconventional DRAM QoQ ≥+20% → 短缺延續(bull 傾斜)；持平/轉跌 → 高原開始、4Q26E 下修	scheduled (monthly data)已排定(月度數據)
~2026-10-28	3Q26 earnings3Q26 財報	OP vs Kiwoom's path of ₩75tn; OPM ≥76% sustained → model was too conservative, TP revision reviewOP 對照 Kiwoom 路徑 ₩75兆；OPM ≥76% 續 → 模型過保守，TP 上修檢討	scheduled已排定
~2026-10-07	ADS company lockup expiry (90 days)ADS 公司 lockup 90 天到期	informational only (company-side, no legacy shares)純資訊事件（公司端、無老股）	watch觀察
2026-12	China VEU annual license renewal中國 VEU 年度換照	denial/tightening → tail risk realized, bear case under review拒發/加嚴 → 尾部風險實現、bear 檢討	speculative (annual regime)推測(年審制)
4Q26–1Q27	2027 LTA negotiations (HBM4/DDR5)2027 年度長約談判(HBM4/DDR5)	HBM4 NVIDIA share <50% or Samsung reaches price parity → moat-premium thesis dies, view under review; 2027 LTA coverage >80% at locked-in high prices → 2027E revised upHBM4 對 NVIDIA 份額 <50% 或三星達成同價 → 護城河溢價論死亡、觀點下修檢討；2027 LTA 覆蓋 >80% 且價格鎖高 → 2027E 上修	speculative (share data trackable quarterly)推測(季度份額數據可追蹤)
2027-01 late下旬	FY26 full-year + 4Q26 earnings, 2027 capex guidanceFY26 全年+4Q26 財報、2027 資本開支指引	a large capex upgrade → self-reinforcing confirmation of the supply wavecapex 大幅上修 → 供給波自我實現的再確認	scheduled已排定

Management & capital allocation經營層與資本配置

CEO Nohjung Kwak (곽노정) has led since 2022-03 (term through 2028-03) and also chairs SK Group's SUPEX semiconductor committee; the board chair is independent director Seung Beom Koh, since 2026-03 ✓ 424B4.

CEO Nohjung Kwak（곽노정）自 2022-03 上任（任期至 2028-03），並兼任 SK 集團 SUPEX 半導體委員會主席；董事會主席為獨立董事 Seung Beom Koh，自 2026-03 起 ✓ 424B4。

Capital allocation record資本配置紀錄

FY25 dividend ₩3,000/share (incl. ~₩1tn special dividend); 2026-02 retired 15.3M treasury shares (2.1% of shares); 2026-05 cleared a $1.7B exchangeable bond via a clean-up call; 2026-07 the $26.5B ADS raise, fully earmarked for capacity — ₩45.5tn Korea fab construction + ₩11.9tn EUV tools, delivery before 2027-12 ✓ 424B4.

FY25 股息 ₩3,000/股（含特別股息 ~₩1兆）；2026-02 註銷 15.3M 庫藏股（占股本 2.1%）；2026-05 以 clean-up call 清償 $1.7B 交換債；2026-07 $26.5B ADS 增資，全數撥入產能 — ₩45.5兆韓國廠房興建 + ₩11.9兆 EUV 設備，2027-12 前交機 ✓ 424B4。

Reading the signal解讀

Shareholder returns (retirement + special dividend) and a top-of-cycle capital raise coexist — the raise's use of proceeds is honest (100% capex), but its timing is itself management's judgment on share price vs future capital needs. SK Square must maintain ≥20% ownership under Korea's Fair Trade Act holding-company rules, capping dilution from the raise at ~2.5% — limited economic dilution, but the signal still matters. No 2026 open-market insider filings found ⚠ [?].

股東回饋（註銷庫藏股+特別股息）與頂部增資並存 — 增資用途誠實（全數為 capex），但時點本身就是管理層對「現在股價 vs 未來資本需求」的判斷。SK Square 須依韓國公平交易法控股規範維持 ≥20% 持股，增資稀釋上限被鎖在 ~2.5% — 經濟稀釋有限，但訊號意義仍在。2026 年未發現內部人公開市場申報交易紀錄 ⚠ [?]。

Competitive position競爭態勢

Segment分部	1Q26 share1Q26 份額	Note說明
DRAM	三星38.5% > SK28.8% > Micron美光22.4%	SK first overtook Samsung in 1Q25 (first time since 1992), retaken by Samsung in 4Q25SK 曾於 1Q25 首度超車三星（1992年來首次），4Q25 被奪回 ✓ TrendForce
HBM	SK 56.4% > Samsung三星 > Micron美光	IDC via 424B4; 3Q25 Counterpoint had it 57/22/21IDC引自424B4；3Q25 Counterpoint口徑為57/22/21 ✓
NAND	三星31.6% > SK(incl. Solidigm)集團(含Solidigm)17.6%	eSSD: SK group $4.64B, second placeeSSD:SK集團$4.64B居次 ✓ TrendForce

FY25 operating profit of ₩47.2tn surpassed Samsung's for the first time ✓ CNBC/TrendForce 2026-01. Geography: manufacturing concentrated in Korea (Icheon/Cheongju/Yongin) + China (Wuxi DRAM, Dalian NAND — the VEU review risk) + US packaging (Indiana, 2H28).

FY25 營業利益 ₩47.2兆首度超越三星 ✓ CNBC/TrendForce 2026-01。地理：製造集中韓國（利川/清州/龍仁）+ 中國（無錫 DRAM、大連 NAND — VEU 年審風險）+ 美國封裝（Indiana，2H28）。

R&D depth signal: the CTI research (§Business) is an IEDM 2025 industry first, and the company separately won the 2026 IEEE Corporate Innovation Award for HBM ✓ official官方 2026-04-25.

R&D 深度訊號：CTI 研究（詳事業章節）為 IEDM 2025 業界首例，公司並另外拿下 2026 IEEE Corporate Innovation Award（HBM）✓ 官方 2026-04-25。

Playbook操作框架

Playbook (not investment advice)操作框架（非投資建議）

If not holding未持有	◆ Don't chase the current price. The TP's +4.1% headroom doesn't clear a buy threshold, and the left tail (guidance weakening) ahead of the 7/29 earnings print is still alive.現價不追。+4.1% 的 TP 空間不越過買進門檻，且 7/29 財報前左尾（指引轉弱）仍活著。
If holding已持有	◆ Hold, with 7/29 as the tripwire — OP <₩60tn or 2H pricing language turning weak → trim. The -38% correction has already squeezed out the froth; realizing a loss seven days ahead of a print highly likely to set a record makes poor economic sense. Don't add before an invalidation trigger fires.續抱，以 7/29 為絆線 — OP <₩60兆或 2H 價格語言轉弱 → 減碼；-38% 修正已擠出泡沫段，在大概率創紀錄的財報前 7 天實現虧損不划算。失效條件觸發前不加碼。
Entry zone進場區	◆ < ₩1,600,000 and the 2Q26 print confirms the base case (OP ≥₩64tn, guidance intact). That level is ≈4.9× this analysis's 2027E EPS, 2.1× FY27E BVPS — asymmetry flips positive: +22% vs base, +110% vs bull, -37% vs bear. Price and evidence are both required, neither is sufficient alone.< ₩1,600,000 且 2Q26 財報確認基準情境（OP ≥₩64兆、指引未轉弱）。該價位 ≈ 4.9× 本研究 2027E EPS、2.1× FY27E BVPS；對 base +22%、對 bull +110%、對 bear -37% — 不對稱轉正。價格與證據缺一不可。
Why not more aggressive (why not short the variant)為何不更激進(為何不做空)	◆ The shortage is still accelerating QoQ (2Q26E OP +71% QoQ), an 11-quarter beat streak carries momentum, 5.8× is already a peak-discount, short-squeeze risk is elevated after -38%, and the bull tail carries 25% weight — shorting a company "still setting records" on negative carry in memory stocks is where bears go to die.短缺仍在 QoQ 加速（2Q26E OP +71% QoQ）、連 11 季 beat 的動能、5.8× 已是 peak-discount、-38% 後軋空風險、bull 尾部 25% 權重 — 在記憶體股用負 carry 空「還在創紀錄的公司」是空頭的墳場。
Invalidation失效條件	◆ (1) 2Q26 OP <₩60tn or contract prices turn down a quarter early → base→bear migration. (2) HBM share below 50% for two straight quarters, or Samsung reaches HBM4 price parity with NVIDIA → the moat-premium thesis dies, view under review. (upside invalidation) (3) 3Q26 contract prices rise another +30% QoQ and 2027 LTA coverage locks >80% of pricing → this analysis's 2027E was cut too deep, TP revision review.(1) 2Q26 OP <₩60兆或合約價提前一季轉跌 → base→bear 遷移。(2) HBM 份額連兩季 <50% 或三星在 NVIDIA 達成 HBM4 同價 → 護城河溢價死亡、觀點下修。(上行失效)(3) 3Q26 合約價再 +30% QoQ 且 2027 LTA >80% 鎖價 → 本研究 2027E 砍太深，TP 上修檢討。

Jargon decoder名詞解碼

19 terms used across this page. Basis: the company's own 424B4 filing and newsroom disclosures, plus web-verified industry frameworks.

本文用到的 19 個術語。依據：公司自家 424B4 揭露 + newsroom 資訊 + 上網查證的產業框架。

19 terms — collapse if you've read this page before19 個術語 — 讀過本頁可收合

HBM High Bandwidth Memory: DRAM dies stacked vertically (8/12/16 layers), connected by TSV and sitting on a base logic die, packaged beside the GPU. Bandwidth is the bottleneck for AI training/inference. Why it matters: SK hynix's own MR-MUF stacking process holds a 56.4% 1Q26 share — but HBM contract prices fell in 1Q26 while commodity DRAM rose ~95%, a fact the AI narrative tends to skip. DRAM die 垂直堆疊（8/12/16 層），以 TSV 打通、置於 base die（基底邏輯晶片）上，與 GPU 同封裝。頻寬 = AI 訓練/推論瓶頸。為何重要：SK海力士自家 MR-MUF 堆疊製程握有 1Q26 56.4% 份額 — 但 1Q26 HBM 合約價下跌，同期商品 DRAM 卻漲近 95%，這正是 AI 敘事常忽略的事實。
DRAM Dynamic Random Access Memory: Volatile working memory for CPU/GPU — written on demand, erased on power-off. Server-grade uses RDIMM modules; high-capacity (128GB+) shipments doubled QoQ in 3Q25. Why it matters: 77.3% of 1Q26 revenue — this is the body of the business, not HBM. 揮發性記憶體，CPU/GPU 的工作記憶。一次寫入運算資料、斷電即失。伺服器用 RDIMM 模組；128GB+ 高容量款 3Q25 出貨 QoQ 倍增。為何重要：佔 1Q26 營收 77.3% — 這才是公司的本體，不是 HBM。
NAND NAND Flash: Non-volatile storage. AI data centers drive eSSD (enterprise SSD) and high-capacity QLC demand; subsidiary Solidigm leads the QLC eSSD line. Why it matters: 22.0% of 1Q26 revenue; the CTI research (§Business) targets exactly the cell-to-cell interference that QLC's narrow voltage margins are most sensitive to. 非揮發儲存。AI 資料中心帶動 eSSD（企業級 SSD）與 QLC 高容量需求；子公司 Solidigm 是 QLC eSSD 主力。為何重要：佔 1Q26 營收 22.0%；事業章節的 CTI 研究，正是針對 QLC 最敏感的 cell 間干擾問題。
DDR5/RDIMM: The current server DRAM generation and its registered-module form factor. Profitability overtook HBM3E in 2026, as TrendForce predicted in Oct-2025. Why it matters: this is the "conventional DRAM" whose contract price is the actual 2026 profit engine — not HBM. 目前的伺服器 DRAM 世代與其模組形式（registered DIMM）。獲利性 2026 年超車 HBM3E，如 TrendForce 於 2025 年 10 月的預測。為何重要：這正是「conventional DRAM」— 其合約價才是 2026 真正的獲利引擎，不是 HBM。
TSV Through-Silicon Via: Vertical electrical channels drilled through stacked dies, the physical mechanism that lets an HBM stack behave as one fast memory column instead of separate chips. Why it matters: TSV yield and density are core HBM manufacturing know-how — part of why HBM share is sticky. 貫穿堆疊晶片的垂直電氣通道，是讓 HBM 堆疊像單一高速記憶體柱、而非各自獨立晶片的實體機制。為何重要：TSV 良率與密度是 HBM 製造的核心 know-how — HBM 份額之所以黏著的原因之一。
Base die基底邏輯晶片 Base Die: The bottom logic die of an HBM stack, sitting nearest the GPU/interposer, that controls the DRAM dies stacked above it. Why it matters: the base die is where MR-MUF (below) is applied — the encapsulation choice that separates SK hynix's thermal performance from Samsung/Micron's. HBM 堆疊最底層的邏輯晶片，最靠近 GPU/中介層，負責控制上方堆疊的 DRAM die。為何重要：base die 正是下方 MR-MUF 製程施作的位置 — 這是 SK海力士散熱表現與三星/美光拉開差距的關鍵選擇。
MR-MUF vs TC-NCF: SK hynix's proprietary stacking process: a single mass reflow, then liquid epoxy fill (Mass Reflow-Molded Underfill) — vs Samsung/Micron's TC-NCF (thermo-compression, layer-by-layer film lamination). MR-MUF's thermal bumps run ~4× denser, improving heat dissipation. Why it matters: this is the single biggest technical differentiator behind SK's HBM lead. SK海力士獨門堆疊製程：一次回焊 + 液態環氧填充（Mass Reflow-Molded Underfill）— 相對三星/美光的 TC-NCF（熱壓合、薄膜逐層壓合）。MR-MUF 的熱阻尼凸塊密度多約 4 倍，散熱更佳。為何重要：這是 SK HBM 領先地位背後最大的單一技術差異化。
Contract vs spot price合約價 vs 現貨價: Memory is sold mostly on negotiated multi-month contract prices, with a smaller spot market as a sideshow. 1Q26 conventional DRAM contract prices rose +93~98% QoQ. Why it matters: the whole 2026 windfall is a contract-price story, not a spot-auction story — it moves on CSP negotiations, not headlines. 記憶體多以協商的多月期合約價銷售，現貨市場只是配角。1Q26 conventional DRAM 合約價 QoQ +93~98%。為何重要：2026 整個暴利故事是合約價故事，不是現貨拍賣故事 — 它隨 CSP 議約而動，不是隨頭條新聞而動。
LTA Long-Term Agreement: A multi-quarter/year supply-and-price lock between a memory maker and a customer (typically a CSP). Why it matters: LTA coverage above 80% into 2027 would lock in high prices and argue for raising this analysis's 2027E; below 50% HBM share retained via LTA is one of this analysis's own invalidation triggers. 記憶體廠與客戶（通常是 CSP）之間多季/多年期的供給與價格鎖定協議。為何重要：若 2027 LTA 覆蓋率超過 80%，代表高價已被鎖定，是本研究 2027E 上修的觸發條件之一；反之 LTA 內 HBM 份額跌破 50%，則是本研究自己設下的失效條件。
eSSD/QLC: Enterprise SSD, and Quad-Level Cell — 4 bits (16 voltage states) per cell, the densest/cheapest-per-GB NAND format, with the narrowest margin between voltage states. Why it matters: QLC is the format most exposed to the cell-interference problem the CTI research (§Business) targets — and Solidigm's AI-storage story rides on it. 企業級 SSD，以及 Quad-Level Cell — 每 cell 4 位元（16 個電壓態），密度最高、每 GB 成本最低的 NAND 格式，但電壓態之間的餘裕也最窄。為何重要：QLC 正是最容易受 cell 間干擾影響的格式（詳事業章節 CTI 研究）— Solidigm 的 AI 儲存故事就建立在它之上。
Bit growth位元成長率: Industry shorthand for total memory bits shipped, growing YoY — the volume half of revenue = price × volume. Why it matters: 2026's windfall is overwhelmingly a price story; this analysis separately tracks bit growth to make sure volume isn't quietly doing the work instead. 產業慣用語，指出貨位元總量的年增 — 是「營收＝價格×數量」中的數量那一半。為何重要：2026 暴利絕大部分是價格故事；本研究另外追蹤位元成長率，確保不是數量悄悄扛下大半功勞。
1c nm: The current (6th-generation, 10nm-class) DRAM process node, in mass production. Why it matters: node shrinks are how bit density (and margin) improve without new fabs — a lever behind the gross-margin path in the model. 目前量產中的 DRAM 製程節點（第 6 代，10nm 級）。為何重要：製程微縮是在不新建晶圓廠的前提下提升位元密度（與毛利）的手段 — 是財測模型毛利路徑背後的槓桿之一。
EUV Extreme Ultraviolet Lithography: The lithography technology required for the most advanced logic and memory nodes; ASML is the sole supplier. Why it matters: the July ADS raise earmarked ₩11.9tn specifically for EUV tools, delivery before 2027-12 — a direct funding line for the next node. 最先進邏輯與記憶體製程節點所需的曝光技術；ASML 為唯一供應商。為何重要：7 月 ADS 增資明確撥款 ₩11.9兆用於 EUV 設備，2027-12 前交機 — 直接對應下一代製程的資金來源。
VEU Validated End-User: A US export-control status letting a designated China facility keep receiving US-origin chipmaking equipment without a case-by-case license. Wuxi (DRAM) and Dalian (NAND) operate under it, now on an annual review cycle starting 2026. Why it matters: a denied or tightened renewal is one of this analysis's named tail risks. 美國出口管制下的一種資格認定，讓指定的中國廠區得以持續取得美國原產的晶片設備、免逐案申請許可。無錫（DRAM）與大連（NAND）廠依此運作，2026 年起改為年度換照制。為何重要：換照被拒或加嚴，是本研究列名的尾部風險之一。
ADS/ADR American Depositary Share/Receipt: A US-listed instrument representing foreign shares held by a depositary bank; SK hynix's ADS (1 ADS = 1/10 common share, ticker SKHY) began trading 2026-07-10 after a $26.5B raise — the largest-ever US listing by a foreign company. Why it matters: the raise is simultaneously a fortress-balance-sheet move and a top-of-cycle share-sale signal — both readings appear in the Variant section. 代表存託銀行持有之外國股份、在美國掛牌交易的憑證；SK海力士 ADS（1 ADS＝1/10 普通股，代號 SKHY）於 2026-07-10 掛牌，募資 $26.5B — 外國公司在美史上最大規模股票發行。為何重要：這筆增資同時是「堡壘資產負債表」與「頂部賣股訊號」— 兩種讀法都出現在變異認知章節。
OPM Operating Profit Margin: Operating profit ÷ revenue — the company's core profitability, unaffected by one-off financial items. 1Q26 companywide OPM hit 72% (guided to 76.5% for 2Q26E). Why it matters: the model tracks OPM, not net income, because 1Q26 net income was distorted upward by a ₩17.06tn one-time financial gain. 營業利益 ÷ 營收 — 公司核心獲利能力，不受業外一次性項目影響。1Q26 全公司 OPM 達 72%（2Q26E 指引 76.5%）。為何重要：模型以 OPM 而非稅後純益為錨，因為 1Q26 淨利被 ₩17.06兆的一次性業外收益向上扭曲。
CTI Charge Trap Nitride Isolation: A newly-disclosed NAND research breakthrough: segmenting the charge-storage layer per cell (instead of one continuous film) by depositing oxide barriers rather than etching them — avoiding the pore-widening that etch-based isolation causes. Why it matters: company-stated results (-30%+ interference, +45%+ retention, >10% smaller cells) are a research milestone, not a shipping product — see §Business for the full framing. 新揭露的 NAND 研究突破：把儲存電荷的絕緣層依 cell 分段隔離（而非一整條連續薄膜），方法是沉積氧化屏障而非蝕刻挖孔 — 避免蝕刻式隔離會造成的孔徑變寬問題。為何重要：公司自述成果（干擾 -30%+、保持力 +45%+、cell 縮 >10%）屬研究里程碑，非出貨中產品 — 完整框架見事業章節。
CTN Charge Trap Nitride: The insulating nitride layer SK hynix's NAND cells use to trap electrons representing a "1" or "0" — traditionally one continuous film running the length of the channel. Why it matters: a continuous CTN is the root cause CTI (above) is designed to fix — as cells shrink closer together, electrons drift between neighboring cells (Vth shift, read errors), one of NAND scaling's biggest physical bottlenecks. SK海力士 NAND cell 用來困住代表「1」或「0」電子的絕緣氮化層 — 傳統上是沿著 channel 連續的一整條薄膜。為何重要：連續 CTN 正是上方 CTI 要解決的根源問題 — cell 越縮越密，電子會在鄰近 cell 間游移（閾值電壓 Vth 漂移、讀取錯誤），是 NAND 微縮最大的物理瓶頸之一。
₩1兆 1 Trillion Won: The scale unit used throughout this page for revenue/profit figures (₩ = KRW). ₩1 trillion (兆) ≈ US$650-720M at recent FX (₩1,380-1,540/US$); the July ADS raise's $26.5B gross proceeds ≈ ₩40tn at the 424B4's reference rate. Per-share figures (EPS, dividend, book value, price) are in plain won, not trillions — always check which scale a number is on before comparing across tables on this page. 本頁營收/利潤數字採用的規模單位（₩＝韓元）。₩1兆以近期匯率（₩1,380-1,540/US$）約當 US$6.5-7.2億；7 月 ADS 增資 $26.5B 毛額，以 424B4 參考匯率折算約 ₩40兆。每股數字（EPS、股息、帳面淨值、股價）皆為原始韓元，非兆為單位 — 比較本頁不同表格數字前，務必先確認單位刻度。

編輯示意圖：橘色液態環氧樹脂正澆灌進一疊記憶體晶片堆疊的中心，兩側有夾具固定，象徵MR-MUF一次回焊填充製程 — AI-generated illustration of the MR-MUF liquid-epoxy fill step (see the MR-MUF term above, and the HBM cross-section diagram in §Business).AI 生成示意圖：MR-MUF 液態環氧填充步驟（對照上方 MR-MUF 詞條，以及事業章節的 HBM 剖面圖）。

Data provenance — every number, sourced資料來源 — 每個數字都有出處

84 claims: 74 ✓ verified · 8 ⚠ flagged · 2 ✗→ corrected — expand the ledger84 項查證：74 ✓ 已查證 · 8 ⚠ 未核實 · 2 ✗→ 已修正 — 點開展開逐項表

Claim主張	Verdict判定	Value · source · as-of數值 · 來源 · 日期
Price & valuation · IBKR snapshot + computed, 2026-07-22價格與估值 · IBKR快照+計算 2026-07-22
1. Close (+0.16%)收盤(+0.16%)	✓ IBKR	₩1,839,000 · 07-22
2. YTD +182.97%	✓ IBKR	stockanalysis same-day ~+181%, basis differs (651,000 vs 677,000 base, see #77)stockanalysis同日約+181%,口徑差異(基期651,000 vs 677,000,見#77)
3. 52wk ₩245,000–2,987,000, peak 2026-06-2652週₩245,000–2,987,000,高點2026-06-26	✓ IBKR + en.sedaily	07-02
4. Off peak -38.4%距峰-38.4%	✓ computed計算	—
5. 12mo +~576%12個月+~576%	✓ IBKR	open_52w 271,909; stockanalysis +571.56% close開盤基期271,909;stockanalysis口徑+571.56%相近
6. Market cap ₩1,340tn市值₩1,340兆	✓ computed計算	price × 728,865,500 shares (424B4)價格×728,865,500股(424B4)
7. ≈US$871B≈US$871B	✓ basis stated基準明示	424B4 FX 1,538.05 (07-09), not a live rate424B4匯率1,538.05(07-09),非即時匯率
8. PER TTM 17.4×	✓ computed計算	cross-check stockanalysis 07-22交叉核對stockanalysis 07-22
9. fwd PER 5.8×(consensus)/6.2×(this analysis)fwd PER 5.8×(共識)/6.2×(本研究)	✓◆	computed計算
10. PBR 7.9× (BVPS 231,950)PBR 7.9×(BVPS 231,950)	✓ computed from 424B4計算自424B4	—
11. Yield 0.16% (FY25 ₩3,000 basis)殖利率0.16%(FY25₩3,000基準)	✓ 424B4+computed計算	IBKR same basis 0.17%IBKR同口徑0.17%
12. Sell-side avg TP ₩3,408,502 (1.2M–5.3M, 37 analysts)賣方平均TP₩3,408,502(1.2M–5.3M,37位)	✓ opinion屬意見	stockanalysis/investing 07-22
Financials · SEC form 424B4, audited財務 · SEC 424B4,經審計數
13-17. FY23 rev 32.77/OP -7.73/NI -9.14/EPS -13,244; FY24 66.19/23.47/19.80/28,732	✓ 424B4	—
18-21. FY25 rev 97.15/OP 47.21(49%)/NI 42.95/EPS 62,044 (released 2026-01-28發布2026-01-28)	✓ 424B4+official release官方release	—
22-26. 2025 quarterly rev/OP: 1Q 17.64/7.44, 2Q 22.23/9.21, 3Q 24.45/11.38, 4Q 32.83/19.17 (sums to FY)2025各季rev/OP:1Q17.64/7.44,2Q22.23/9.21,3Q24.45/11.38,4Q32.83/19.17(加總=年度)	✓ official quarterly releases + 424B4官方季度release+424B4	—
27-30. 1Q26 rev 52.58(+60%QoQ,+198%YoY)/OP 37.61(72%)/NI 40.35/EPS 57,175	✓ official 04-22官方04-22+424B4	—
31. 1Q26 NI>OP: ₩17.06tn financial gain (pretax 51.6tn, tax 11.3tn)1Q26淨利>營益:金融收益₩17.06兆(稅前51.6兆,稅11.3兆)	✓ composition not broken out組成未細拆 ⚠	424B4
32. 2Q26 release date 2026-07-29 09:00 KST (not yet released)2Q26發布日2026-07-29 09:00 KST(未發布)	✓ 6-K	07-15 (TipRanks 07-22 was wrong, droppedTipRanks 07-22說法錯誤,棄用)
33-35. Segment: 1Q26 DRAM 77.3%/NAND 22.0%; FY25 77.1%/21.3%; FY24 67.6%/29.1%段別:1Q26 DRAM77.3%/NAND22.0%;FY25 77.1%/21.3%;FY24 67.6%/29.1%	✓ 424B4	—
36. HBM >40% of DRAM revenue (disclosed 4Q24, no later %)HBM>40% DRAM營收(4Q24揭露,其後無明確%)	✓ time-stamped時效註明	official 4Q24 release官方4Q24 release
37. 1Q26 net cash ₩35tn (current assets 54.3tn vs borrowings 19.3tn)1Q26淨現金₩35兆(流動資產54.3兆vs借款19.3兆)	✓ 424B4+official官方	—
38. FY25 capex ₩27.52tn (cash-flow basis; media's 30.2tn figure conflicts, dropped)FY25 capex₩27.52兆(現金流基準;媒體30.2兆口徑衝突,棄用)	✓ 424B4	—
39. Unrecognized capital commitments ₩30.9tn (3/31) vs ₩6.7tn (12/31)未認列資本承諾₩30.9兆(3/31)vs₩6.7兆(12/31)	✓ 424B4	—
40. Equity ₩164.38tn, assets ₩222.83tn (3/31)權益₩164.38兆,資產₩222.83兆(3/31)	✓ 424B4	—
41-43. Shares: 728,002,365 → 15.3M retired → 712,702,365; outstanding 711,075,500 (07-09); post-ADS 728,865,500股數:728,002,365→2月註銷15.3M→712,702,365;流通711,075,500(07-09);ADS後728,865,500	✓ 424B4	—
44. Dividend policy FY25-27 fixed ₩1,500/yr + special upside; FY25 paid 3,000 (incl. 1,500 special); FY24 2,204, FY23 1,200股息政策FY25-27固定₩1,500/年+超額加碼;FY25實付3,000(含特別1,500);FY24 2,204,FY23 1,200	✓ 424B4	—
45. $1.7B exchangeable bond clean-up call (exercised 04-28, completed 05-28)$1.7B交換債clean-up call(04-28行使,05-28完成)	✓ 424B4	—
ADR (SKHY)
46. NASDAQ listing 2026-07-10, ticker SKHY (initial SKHYV, switch date uncertain)NASDAQ 2026-07-10掛牌,代碼SKHY(初期SKHYV⚠切換日不確定)	✓ EDGAR/424B4/Bloomberg	—
47. 1 ADS = 1/10 share; Citibank depositary1 ADS=1/10股;花旗存託	✓ 424B4	—
48. 177.9M ADS @ $149 = $26.5B gross, ~$26.2B net; 17.79M new shares (~2.5%)177.9M ADS@$149=毛額$26.5B,淨額~$26.2B;全新股17.79M股(~2.5%)	✓ 424B4	—
49. Largest-ever US listing by a foreign company (>Alibaba's $25B); ~7× oversubscribed外國公司在美最大股票發行(>Alibaba $25B);~7倍超額認購	✓ ⚠ oversubscription is single-source超購為單一消息源	Reuters/CNBC 07-10
50. Use of proceeds: ₩45.5tn Korea fab capex + ₩11.9tn EUV (by 2027-12)資金用途:₩45.5兆韓國廠房capex+₩11.9兆EUV(2027-12前)	✓ 424B4	—
51. IPO priced ~4.9% above 07-09 KOSPI close (₩2,186,000, FX 1538.05)IPO定價較07-09 KOSPI收盤(₩2,186,000,FX1538.05)溢價~4.9%	✓ computed from 424B4計算自424B4	—
52. 90-day company lockup; no greenshoe (Korean law); ~$7B cornerstone (Baillie Gifford/Coatue/SAP LP)90天公司lockup;無綠鞋(韓國法規);基石~$7B(Baillie Gifford/Coatue/SAP LP)	✓ 424B4	—
53. Luxembourg GDR "HYNSE" persists (1 GDS=1 share); no conversion link to OTC HXSCL盧森堡GDR「HYNSE」續存(1GDS=1股);與OTC HXSCL無轉換關係	✓ full-text search of 424B4424B4全文檢索	—
Industry & competition (named sources)產業與競爭(具名來源)
54. 1Q26 DRAM share: Samsung 38.5%/SK 28.8%/Micron 22.4% ($97B industry, +81% QoQ)1Q26 DRAM份額:三星38.5%/SK28.8%/美光22.4%($97B產業,+81%QoQ)	✓ TrendForce	06-01
55. SK first led DRAM in 1Q25 (first since 1992), retaken 4Q25SK於1Q25首度DRAM登頂(1992來首次),4Q25被奪回	✓ Counterpoint+TrendForce	2025-04 / 2026-02-26
56. HBM share 56.4% (1Q26, IDC)HBM份額56.4%(1Q26,IDC)	✓ cited via引自 424B4	—
57. NAND: 1Q26 Samsung 31.6%/SK group 17.6% ($7.53B)NAND:1Q26三星31.6%/SK集團17.6%($7.53B)	✓ TrendForce	05-25
58. FY25 OP first surpassed Samsung'sFY25 OP首度超越三星	✓ CNBC/TrendForce	2026-01-28
59. Conventional DRAM contract +93~98% QoQ 1Q26; +58~63% 2Q26Econventional DRAM合約價1Q26+93~98%QoQ;2Q26E+58~63%	✓ TrendForce	06-01/03-31
60. HBM contract price fell 1Q26, pressuring SK's ASPHBM合約價1Q26下跌,壓SK ASP	✓ TrendForce	06-01
61. DDR5 profitability overtook HBM3E in 2026 (predicted)DDR5獲利性2026超HBM3E(預測)	✓ TrendForce	2025-10-29
62. SK slowed HBM4 conversion; full-year target 4.5→4B Gb; HBM already >40% of revenueSK放慢HBM4轉線;全年目標4.5→4B Gb;HBM已>40%營收	✓ reported轉述韓媒	TrendForce 06-23
63. Samsung HBM4 mass production 2026-02, >$1B in 4 months, full-year target upgraded to 4B Gb, seeking price parity三星HBM4 2026-02量產,4個月>$1B,全年上修至4B Gb,尋求同價	✓ reported轉述	TrendForce 06-23/01-28
64. Micron HBM3E+HBM4 booked through 2027, HBM4 >$1B美光HBM3E+HBM4訂到2027,HBM4>$1B	✓ Micron FQ3'26	2026-06-24
65. NVIDIA Rubin: all three vendors certified (Jensen Huang's 06-05 Korea visit); SK share ~2/3 (estimated); multi-year agreement 06-08NVIDIA Rubin:三家全過認證(06-05黃仁勳訪韓);SK份額~2/3(估);多年協議06-08	✓ share is a reported estimate份額屬報導估計	Yahoo 06-05/TrendForce 01-28/thenextweb 06-08
66. HBM4 12-layer >$600/unit (reported)HBM4 12層>$600/顆(報導)	⚠ single-source, unverified against a second source轉述、未經雙源	TrendForce 01-28
67. NVIDIA = 14.8% of 1Q26 revenue (₩7.78tn); second >10% customer at 12.4% (identity undisclosed)NVIDIA=1Q26營收14.8%(₩7.78兆);第二家>10%客戶12.4%(身分未揭露)	✓ ratio比例 ⚠ NVIDIA attribution & 2nd customer identityNVIDIA認定與第二家身分	Korean quarterly report via BigGo韓國季報via BigGo 05-15
68. Microsoft 3-year DDR5 LTA微軟3年DDR5長約	⚠ single-source, reported單源轉述	TrendForce 06-23
69. 1Q26 eSSD market $18.46B (+86% QoQ), contract +~80%; SK group $4.64B1Q26 eSSD市場$18.46B(+86%QoQ),合約價+~80%;SK集團$4.64B	✓ TrendForce	06-11
70. Almost zero new NAND capacity in 20262026 NAND幾乎零新增產能	✓ TrendForce	05-25
71. CXMT IPO raised ₩14tn, triggered a 07-16 selloff in both DRAM leadersCXMT IPO募₩14兆,07-16引發雙雄大跌	✓ ebn	2026-07-16
72. VEU expiry, 2026 annual license regimeVEU到期,2026年審制許可	✓ CNBC	2025-12-30
73. Section 232 semiconductor tariffs 25% (effective 2026-01-15; scope for Korean memory unclear)Section232半導體關稅25%(2026-01-15生效;對韓記憶體適用範圍不明)	⚠ conflicting sources來源衝突	CHR/sedaily 2026-01
74. Plant timelines: M15X tape-out 1Q26; Yongin fab-1 cleanroom 1Q27 (₩9.4tn); P&T7 late-2027 (₩19tn); Indiana 2H28 (₩5.9tn); Cheongju NAND plant 2029 (part of a broader ₩170tn Chungcheong plan, single-source)廠房時程:M15X 1Q26投片;Yongin一廠1Q27無塵室(₩9.4兆);P&T7末-2027(₩19兆);Indiana 2H28(₩5.9兆);清州NAND 2029(₩170兆忠清計畫一環,單源)	✓ 424B4 ⚠ NAND plant single-sourceNAND廠單源	424B4+sedaily 07-02
75. HBM4 timeline: development complete 2025-09, shipped 4Q25; HBM4E 12-layer samples 06-18; MR-MUF vs TC-NCFHBM4時程:2025-09開發完成,4Q25出貨;HBM4E 12層06-18出樣;MR-MUF vs TC-NCF	✓ official releases官方releases+EETimes+StorageReview	—
82. CTI research: IEDM 2025 paper, author Sangwan Jin (Materials Development Technical Leader); "Inside the Research" Ep.1CTI研究:IEDM 2025論文,作者Sangwan Jin(Materials Development Technical Leader);「Inside the Research」Ep.1	✓ direct fetch直接抓取全文	news.skhynix.com/en/research-inside-ep1/ 2026-07-22
83. CTI results: interference -30%+, retention +45%+, cell shrink >10%, industry-first at 176-layer production grade (all company-stated)CTI成果:干擾-30%+、保持力+45%+、cell縮>10%、176層生產級首例(皆公司自述)	✓ 官方自述官方自述	same as above同上
84. 2026 IEEE Corporate Innovation Award (HBM), 2026-04-252026 IEEE Corporate Innovation Award(HBM),2026-04-25	✓ official newsroom (related-content list)官方newsroom(related content列表)	—
Consensus & market共識與市場
76. Consensus 2026E rev ₩358.33tn/EPS ₩318,226 (36 analysts); 2026E OP 265.2tn, 2027E OP 386.1tn, 2028E OP 383.1tn共識2026E rev₩358.33兆/EPS₩318,226(36位);2026E OP265.2兆,2027E OP386.1兆,2028E OP383.1兆	✓ stockanalysis(S&P Global)+FnGuide via fnnews	07-22/07-10
77. 2Q26E consensus rev 83.93tn/OP 64.16tn (OPM 76.5%)2Q26E共識rev83.93兆/OP64.16兆(OPM76.5%)	✓ FnGuide via ggilbo	07-20
78. 11 straight quarterly beats (if 2Q beats again)連續11季beat(若2Q再beat)	✓ framing表述	en.sedaily 07-02
79. PBR 6-year average 1.84×; sell-side has dropped PBR; iM 7.5× PBR TP 3.5M, Mirae Asset 4.2M, Kiwoom downgradePBR6年均值1.84×;券商棄用PBR;iM給7.5×PBR TP3.5M、未來資產4.2M、Kiwoom降評	✓ TPs are opinionTP屬意見	sedaily 01-19/MTN 02-03/newspim 06月
80. Foreign ownership 49.88% (07-15), 53.83% at year start; 1H26 foreign net sold ~₩150tn of KOSPI外資持股49.88%(07-15),年初53.83%;1H26外資淨賣KOSPI約₩150兆	✓ ajunews/newsis	07-16/07-05
81. SK+Samsung = 54.76% of KOSPI market cap (06-19); SK's own market cap first led KOSPI 06-22 (₩2,079.7tn); KOSPI broke 9,000 (06-25); USDKRW peaked 1,561.5 (06-08)SK+三星=KOSPI市值54.76%(06-19);06-22 SK市值₩2,079.7兆首度登頂KOSPI;KOSPI破9,000(06-25);USDKRW 06-08高見1,561.5	✓ g-enews/hankyung/betanews	06月
Judgment (not among the enumerated hard-number claims)判斷(不計入列舉硬數字)
TP formula (2027E×6×)目標價公式(2027E×6×)	◆	₩1,960,000
Scenario probabilities情境機率	◆	30/45/25 → weighted加權 ₩2,022,000
2026E/27E estimates, 2027E OP -22% vs consensus2026E/27E估計,2027E OP較共識-22%	◆	—
Playbook / entry zone / thresholds (decision layer)操作框架/進場區/門檻(decision layer)	◆	all zones/thresholds = this analysis's judgment · 07-22所有區間/門檻皆為本研究判斷 · 07-22
Corrected (model memory overridden by sources)已修正(模型記憶被來源修正)
"2Q26 earnings date = 7/23"「2Q26財報日=7/23」	✗→✓	corrected to 7/29 per the 6-K修正為 7/29(依6-K)
"NVIDIA ≈50%+ of revenue" (intuition)「NVIDIA佔營收~50%+」(直覺)	✗→✓	actually 14.8% — diluted by commodity DRAM revenue實為14.8% — 商品DRAM營收稀釋
Dropped (couldn't verify → excluded)已剔除(無法查證→排除)
65% of revenue from the US65% 美國營收占比	⚠ dropped剔除	single-source, uncheckable單源、不可核
HBM5/DDR6 forward roadmap遠期roadmap	⚠ dropped剔除	single enthusiast-media source愛好者媒體單源
Any named insider open-market trade具名內部人公開市場交易	⚠ none found未發現	[?]

Counts: 84 hard-number claims reviewed → 74 ✓ verified · 2 corrected · 8 ⚠ uncertain (single-source or flagged-partial: HBM4 unit price #66, NVIDIA/2nd-customer identity #67, Microsoft LTA #68, Section 232 scope #73, NAND-plant timeline #74, oversubscription claim #49, 1Q26 NI composition #31, no-insider-trades finding). Plus separate ◆ judgment calls outside the enumerated set (TP formula, scenario probabilities, forward estimates, decision layer).統計：84 項硬數字查證 → 74✓已查證 · 2 項已修正 · 8⚠未核實(單源或部分標註：HBM4單價#66、NVIDIA/第二家客戶身分#67、微軟長約#68、Section232範圍#73、NAND廠時程#74、超額認購說法#49、1Q26淨利組成#31、無內部人交易之查證發現)。另有列舉外的◆判斷（目標價公式、情境機率、財測估計、操作框架決策層）。

Update log更新紀錄

✓ 2026-07-23Restructured to the pruned format + numbers refreshed — view and TP unchanged結構修剪＋數字更新 — 觀點與目標價不變

(i) Rebuilt per the 2026-07-23 layout: the forecast, valuation, and scenario sections were merged into one "Numbers, valuation & scenarios" chapter; the summary dropped its key-numbers grid and annual table; moat and leading indicators were promoted into a standalone, expanded section; the jargon decoder moved to the back of the page; and the sources ledger now collapses by default (every underlying model detail is still preserved in the research files — nothing was deleted from the record, only from the page).

(i) 依 2026-07-23 版式修剪：財測/估值/情境三章整合為「數字、估值與情境」，摘要移除關鍵數字卡與年度表，護城河與領先指標升為獨立章節並擴充，名詞解碼移至頁尾，來源表改為預設收合（所有模型細節仍保存於研究檔案，未刪除）。

(ii) Price refresh: ₩1,839,000 (07-22 close) → ₩1,882,000 (07-23 intraday, +2.84%), -37.0% off the peak, TP ₩1,960,000's implied headroom moved from +6.6% to +4.1%. Research view stays range-bound.

(ii) 價格更新：₩1,839,000（07-22 收）→ ₩1,882,000（07-23 盤中 +2.84%），距峰 -37.0%，TP ₩1,960,000 隱含空間 +6.6% → +4.1%，觀點區間不變。

(iii) The two mechanism illustrations (token-flood, epoxy-pour) were regenerated in a more photoreal style; filenames are unchanged.

(iii) 兩張機制概念圖（token-flood、epoxy-pour）改以寫實風格重新生成，檔名不變。

(iv) This page is published to /learn as of today. ◆ = judgment/estimate throughout this log entry unless marked otherwise.

(iv) 本頁自本日起發布於 /learn。◆ ＝本紀錄除另有標註外，皆屬本研究判斷/估計。

◆ initial初次評估2026-07-22 — Initial coverage2026-07-22 — 初次評估

First build of this page. Research view: range-bound. Target price ₩1,960,000 (6-month horizon, 2027E EPS ₩327,000 × 6× PER), implied upside +6.6% vs the ₩1,839,000 close. No prior model exists to revise against.

本頁首次建置。研究觀點：區間。目標價 ₩1,960,000（6個月，2027E EPS ₩327,000 × 6倍PER），對收盤 ₩1,839,000 隱含漲幅 +6.6%。無前一版模型可供對照。

Date日期	Action動作	View觀點	TP	Close收盤
2026-07-22	Initial coverage初次評估	Range-bound區間	1,960,000	1,839,000
2026-07-23	Restructure + price refresh結構修剪+價格更新	Range-bound區間	1,960,000	1,882,000

Append-only ledger. Still no revision table — no estimate has changed since initial coverage.附加式(append-only)紀錄。仍無修正對照表 — 自初次評估以來估計數字未變動。

Research view band研究觀點區間	6-month absolute return6個月絕對報酬
Buy買進	> +15%
Range-bound區間	-10% ~ +15%
Avoid迴避	< -10%
Watch觀察	—