ChipSentinel logo

ChipSentinel

Archives
Log in
Subscribe
August 18, 2026

Rising Yields Hit Memory Stocks

SK Hynix Approves New Fabs

ChipSentinel — Daily Edition — August 18, 2026

ChipSentinel

Semiconductor Market Intelligence
Before the Open
Daily Edition • Tuesday, August 18, 2026
Lead Analysis

Rising Treasury Yields Crack Monday's Memory Rally as the 30-Year Hits a 2007 High

Micron, SanDisk and SK Hynix's U.S.-listed shares were all indicated 5%-6% lower in Tuesday premarket trading, unwinding a chunk of Monday's furious memory-chip rally after the 30-year Treasury yield climbed to 5.327%, its highest level since 2007, and the 10-year reached 4.739%, per Invezz. Micron was indicated about 6% lower and SanDisk was down 5.3% around 5:30 a.m. ET, while SK Hynix's ADRs fell roughly 5.1% — a sharp reversal from Monday's session, when Micron closed up 4.13% at $1,011.75, SanDisk jumped 8.9% and SK Hynix's ADRs rose 3.04% to $171.38, per Invezz. Nasdaq 100 futures fell about 1.2% Tuesday as oil pushed above $90 a barrel on renewed Strait of Hormuz supply fears, adding to the risk-off tone. Monday's rally itself had been fed by Anthropic's disclosure that its second-quarter revenue jumped more than 14-fold year-over-year, and by Commerce Secretary Howard Lutnick's public pressure on Apple to avoid sourcing memory from China's blacklisted CXMT, a stance Micron has said could otherwise "destroy the domestic industry," per MacTrast.

"The recent volatility in semiconductor stocks appears disconnected from any material change in long-term fundamentals." — Divya Mathur, Portfolio Manager, ClearBridge Investments, via Reuters

Mathur's framing — that share prices are reacting more sharply than the underlying demand picture warrants — echoes what sell-side memory bulls have argued for weeks: Deutsche Bank's Melissa Weathers has said DRAM supply tightness could persist into 2028 as AI workloads push memory toward a larger share of total system value, per MarketWatch, via Invezz. But the mechanics cut across the whole complex, not just memory: Nvidia, AMD and Intel all slipped in Tuesday premarket trading on the identical yield move, per Invezz, because higher long-term rates raise the discount rate applied to the distant earnings that justify today's richest AI multiples. For portfolio managers, Monday's memory euphoria wasn't necessarily wrong on fundamentals — but a 30-year yield above 5.3% now looks like a standing headwind the entire sector has to underwrite, not a one-day scare.

Markets

A Yield Shock Drags the Whole Chip Complex Into a Premarket Retreat

TickerCloseChangeDriver
Nvidia (NVDA)$225.01-0.07%Roughly flat as Nvidia agreed to guarantee up to $105 billion in lease payments for OpenAI's Ohio data center — see Companies & Financials.
Advanced Micro Devices (AMD) ★$506.00-1.63%Slipped as Cathie Wood's ARK sold roughly $13.1 million of AMD while buying Nvidia, per TipRanks.
Taiwan Semiconductor (TSM) ★$430.97+1.08%Rose after Appaloosa's David Tepper cut Micron 41% and added to TSMC for a sixth straight quarter — see Companies & Financials.
Broadcom (AVGO)$392.43-0.14%Traded roughly flat; no distinct company news this session.
Micron (MU) ★$1,011.75+4.13%Jumped as U.S. officials discouraged Apple from buying Chinese memory and Anthropic's revenue surge lifted AI sentiment — see Memory Desk.
Applied Materials (AMAT) ★$535.31+5.55%Extended its post-earnings rally as JPMorgan, Bernstein and RBC raised price targets — see Supply Chain.
Intel (INTC) ★$103.49+0.97%Edged up as CEO Lip-Bu Tan signaled Intel could return to the memory business, per Invezz.
ASML Holding (ASML)$1,883.12+2.12%Rose in step with the broader complex; no distinct company news this session.
SK Hynix (SKHY) ★$171.38+3.04%Rallied alongside Micron on the same Apple-sourcing and AI-sentiment drivers — see Memory Desk.
Analog Devices (ADI)$390.28+0.23%Edged higher ahead of Wednesday's fiscal third-quarter earnings — see Week Ahead.

★ highlighted = today's news-driven movers.

Companies & Financials

Tepper Rotates Out of Micron Into TSMC as Nvidia Guarantees $105 Billion for OpenAI

  • Appaloosa Management's David Tepper cut his fund's Micron stake by nearly 41% while adding to Taiwan Semiconductor for a sixth consecutive quarter, a 24% increase in share count, according to Appaloosa's Q2 13F filed with the SEC, per The Motley Fool; the Micron stake's value still roughly doubled to $1.125 billion on the stock's run before the trim. Why it matters: a marquee macro fund taking profit in memory while adding to foundry exposure is a data point on where "smart money" sees the AI buildout's risk-adjusted returns concentrating next, even as Micron's own fundamentals keep improving.
  • Nvidia agreed to guarantee up to $105 billion in lease payments tied to an 8-gigawatt OpenAI data center in Ohio that could ultimately cost as much as $500 billion to build, per The New York Times, days after unveiling a separate $500 billion Wall Street financing platform with six major capital providers. Why it matters: Nvidia is increasingly underwriting the demand for its own chips through direct financing commitments, a structure that widens its balance-sheet exposure to the AI buildout even as it deepens the moat around its largest customer relationships.
Memory Desk

SanDisk's Investor-Day Targets Collide With a Deepening DRAM Shortage Call

  • SanDisk used its Aug. 13 investor day to target mid-to-high-teens annual revenue growth from fiscal 2028 through 2030 alongside adjusted gross margins near 80%, backed by multiyear customer agreements, per Invezz; Bank of America analysts said the framework suggests the memory industry "may be entering a more durable phase" than its historical boom-and-bust pattern. Why it matters: durable, contracted margins would justify sustaining today's premium memory multiples well past the current up-cycle — which is precisely the assumption Tuesday's yield-driven selloff is testing.
  • Deutsche Bank analyst Melissa Weathers has argued this memory cycle is structurally different from past ones, expecting DRAM supply to stay tight into 2028 as memory grows toward roughly half of total system value in AI servers, up from about 10% three decades ago, per MarketWatch, via Invezz. Why it matters: if memory's share of AI-server bill-of-materials keeps rising, the sector may deserve a structurally higher valuation multiple than the deeply cyclical framework investors have historically applied to Micron, SK Hynix and Samsung.
Supply Chain, Equipment & Fabs

Applied Materials Draws Fresh Price-Target Hikes as SK Hynix Approves New Fabs

  • Applied Materials picked up a wave of price-target increases Monday, with JPMorgan lifting its target to $660, Bernstein to $700 and RBC Capital to $600, even as Morgan Stanley and UBS trimmed their targets slightly, per TheFly, following last week's record fiscal third-quarter revenue and a fourth-quarter guide well above consensus. Why it matters: the split sell-side reaction — mostly bullish on demand, more cautious on near-term margin mix — is a preview of the scrutiny AMAT's equipment peers will face as the wafer-fab-equipment upcycle matures.
  • SK Hynix approved roughly $38 billion combined for two new memory fabs — the Yongin Y2 and Cheongju M17 sites — with the NAND-focused M17 not targeting its first cleanroom completion until December 2028, per The Motley Fool. Why it matters: a multiyear lag between capex approval and usable capacity is the clearest evidence that today's memory tightness is a supply-side, not just a sentiment-driven, phenomenon — new capacity simply cannot arrive fast enough to relieve the current shortage.
Policy & Geopolitics

Lutnick Presses Apple on Chinese Memory as Korea Denies a $350 Billion Chip Deal

  • Commerce Secretary Howard Lutnick publicly urged Apple to abandon plans to source memory chips from China's blacklisted CXMT, arguing "great American companies" shouldn't rely on Chinese memory, per MacTrast, a stance a bipartisan group of senators has echoed and that Micron has argued could "destroy the domestic industry." Why it matters: Washington is directly steering a major U.S. buyer's supply-chain decisions toward domestic and allied memory suppliers, a policy tailwind for Micron and SK Hynix that carries real revenue implications if it holds.
  • South Korea's presidential office denied a local media report that a semiconductor project is being discussed as the first investment under its $350 billion U.S. commitment, per The Korea Herald, with $150 billion of that pledge already earmarked for shipbuilding and the remaining $200 billion still under negotiation. Why it matters: continued ambiguity over how Korea's investment pledge will be deployed leaves open whether Samsung or SK Hynix capacity commitments end up folded into the broader U.S.-Korea trade arrangement.
Analyst Corner

SemiAnalysis Weighs AI's Power Bill as Deutsche Bank Defends the Memory Supercycle

  • SemiAnalysis (published August 16): Robert Boswall and colleagues detailed a roughly $12 billion modeling mistake in PJM's power-capacity auction process, part of a broader case that U.S. grid planning is straining to keep pace with AI data-center demand — a power-availability constraint that sits upstream of every capex plan the chip-equipment complex is pricing in.
  • Deutsche Bank (via MarketWatch and Invezz, published August 18): analyst Melissa Weathers reiterated that DRAM supply tightness could persist well into 2028, framing memory's rising share of AI-server system value as grounds for valuing Micron and its peers differently than in past commodity down-cycles.
Calendar / Week Ahead

Analog Devices Earnings and FOMC Minutes Both Land Wednesday Morning

  • Wednesday, Aug. 19 — Analog Devices reports fiscal third-quarter results before the opening bell, with Wall Street looking for roughly $3.92 billion in revenue and $3.33 in adjusted EPS, and options pricing a 5.8% move on the print, per PR Newswire.
  • Wednesday, Aug. 19 — the Federal Reserve releases minutes from its July 28-29 meeting, which produced the first three-way hawkish policy dissent since 2016, a backdrop now sharpened by the 30-year Treasury yield's move to a 2007 high, per the Federal Reserve.
ChipSentinel — Semiconductor Market Intelligence Before the Open
• All claims sourced
• Not investment advice.

Executive read covering the semiconductor economy,
delivered before the U.S. market opens. Available exclusively with a
company or institutional email address.
Personal emails (Gmail, etc.) are not eligible.

Don't miss what's next. Subscribe to ChipSentinel:
← Newer ADI Signals Industrial Chip Recovery Beyond AI Older → Analog Devices Faces Earnings Test
LinkedIn
Powered by Buttondown, the easiest way to start and grow your newsletter.