Lead Analysis
Amazon and SK Hynix Erase the Week's Panic
South Korea's Kospi closed up 17.91% at 6,595.45 on Friday — the largest single-day percentage gain in the index's history, eclipsing the prior record of 11.95% set in October 2008, per the Seoul Economic Daily. Samsung Electronics rose 26.81% to 262,500 won, restoring its market capitalization to $1.2 trillion, while SK Hynix jumped 29.95% to 1,718,000 won after briefly hitting its 30% daily limit, per TradingKey. The proximate trigger was Amazon's Thursday earnings call, where CEO Andy Jassy said the company is raising its 2026 capital-expenditure plan to $220 billion from $200 billion — an increase he attributed specifically to higher memory prices — even as AWS revenue grew 37% year over year, beating the 31% Wall Street had modeled, per CNBC.
"Memory chips will continue to be needed, so the stock price will rise over time. Rather than buying and selling repeatedly, it is better to hold on to the shares." — Chey Tae-won, Chairman, SK Group, via the Seoul Economic DailyChey's bet paid off within a day: his stake gained roughly 1.3 billion won in paper value by Friday's close, per the Seoul Economic Daily. Jassy's framing turned the memory shortage from a cost problem into a demand signal: a hyperscaler paying up for scarce DRAM and still warning it "will still not have enough capacity to meet all the demand we have in 2026" per CNBC validated the same 2028 shortage call Samsung had already made, giving Chey's buy-and-hold thesis an unusually fast payoff. Seoul's session also had domestic tailwinds: the government advanced a 20 trillion won ($13.9 billion) sovereign-wealth account for AI and chip investment, per the Korea Times, while regulators are probing whether foreign high-frequency traders amplified the leveraged-ETF swings behind this week's two circuit breakers, per KED Global. Even after Friday's surge, Samsung and SK Hynix remain down 21% and 35% for July, and the Kospi's 22.19% monthly decline is still its worst since 1997.
Markets
Chip Stocks Post Their Best Session in 15 Months as the Memory Rout Reverses
★ highlighted = today's news-driven movers.
Companies & Financials
Lam Research and Texas Instruments Show the Rally Reaches Beyond Memory
- Lam Research reported fiscal fourth-quarter revenue of $6.72 billion and EPS of $1.82, both above the $6.67 billion and $1.68 consensus, and issued stronger-than-expected first-quarter guidance, per PRNewswire. Why it matters: shares closed up 17.98% in their best session since 1999, and management's citing of AI-driven demand for etch and deposition tools makes Lam a distinct read on wafer-fab-equipment capital spending, separate from the memory-pricing debate dominating this week's headlines.
- Texas Instruments shares rose 3.44% to $280.50 Thursday after Arete Research upgraded the stock to Strong Buy, and the company separately declared a $1.42-per-share third-quarter dividend payable August 11, per Markets Daily. Why it matters: TI's move shows the rally reaching into analog and industrial chipmakers that have largely sat out the AI and memory trade, a sign the recovery in sentiment is broadening beyond the names at the center of this week's volatility.
Memory Desk
Apple's "Hundred-Year Flood" Quote Becomes Micron's Newest Catalyst
- Apple CEO Tim Cook said on Thursday's earnings call that the company is in a "100-year flood" of memory pricing with "exponential increases," and warned costs could keep rising "beyond September," per MacRumors. Why it matters: a first-tier customer confirming runaway DRAM and NAND pricing corroborates Samsung's 2028 shortage forecast from the buy side of the supply chain, and Micron shares built on Thursday's 18% gain in early Friday trading on the remarks.
- Japan's Kioxia rose 17.72% to 46,500 yen and SoftBank Group gained 13.80% Friday, tracking the same AI-memory rally lifting Korean and U.S. peers, per TradingKey. Why it matters: the move shows the memory rebound is not confined to Samsung and SK Hynix — Japan's NAND supply chain is repricing the same shortage narrative, reinforcing that this week's swings reflect a sector-wide reassessment rather than one company's results.
Supply Chain
TSMC's Packaging Ambitions and ASML's China Problem Move in Parallel
- TSMC is developing an "EMIB-like" advanced chip-packaging technology similar to Intel's proprietary interconnect technique, The Information reported Friday, per TipRanks. Why it matters: packaging has become as strategically important as the leading-edge process node for AI chips, and a credible TSMC alternative would erode one of the few manufacturing differentiators Intel Foundry has left to sell to outside customers.
- A Motley Fool analysis published Friday concluded a new Chinese deep-ultraviolet lithography competitor — building just five machines this year and twenty in 2027 — is not yet a material threat to ASML's dominance, per The Motley Fool. Why it matters: ASML shares have swung on China-competition headlines for two weeks; sizing the actual machine count helps investors separate the near-term risk to its legacy DUV franchise from its still-unchallenged EUV monopoly.
Policy Desk
Seoul Moves to Tame the Leverage That Amplified This Week's Swings
- South Korean regulators are investigating whether foreign high-frequency traders amplified this week's leveraged-ETF-driven swings in Samsung and SK Hynix, after program trading nearly doubled following the products' launch, per KED Global. Why it matters: the probe could lead to further trading curbs on top of the leverage caps already announced this week, directly affecting the volatility and liquidity profile of Korea's two largest listed companies.
- South Korea approved a 20 trillion won ($13.9 billion) sovereign-wealth fund account dedicated to AI, semiconductors and other strategic industries, with domestic investments beginning in 2027, per the Korea Times. Why it matters: a state-backed capital pool focused on chips and AI gives Samsung and SK Hynix a new government-linked source of demand and investment support, layered on top of this week's emergency market-stabilization measures.
Analyst Corner
A Capex Debate and a Bullish Memory Call Frame the Path Ahead
- SemiAnalysis (background reading, published Jun 21): "Stop Saying Half of 2026 US Datacenter Capacity Is Canceled" argues that widely cited estimates of hyperscaler lease cancellations don't hold up against individual public filings — a framework directly relevant to this week's debate over whether Microsoft's revised capex accounting reflects a genuine pullback or an accounting reclassification.
- UBS, via TipRanks, reiterated a Buy rating and $204 price target on SK Hynix's U.S.-listed shares, arguing agentic AI will lift DRAM bit-demand growth to 36% in 2027 from 22% this year and that the stock's valuation still understates "structurally higher memory profitability," per TipRanks.
Calendar / Week Ahead
AMD and Skyworks Put the Rally's Breadth to the Test
- Tuesday, Aug 4 — AMD reports second-quarter 2026 results after the close. The report is the next major test of whether Thursday's rally reflects durable AI-compute demand or a short-covering bounce, following Wednesday's 13% single-session surge, per StockTitan.
- Wednesday, Aug 5 — Skyworks Solutions reports fiscal third-quarter 2026 results. The print is a read on whether the analog and RF chip cohort, largely absent from this week's AI-driven swings, is seeing any lift from the broader sector rally, per WallStreetZen.
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