Semis Sink the Nasdaq While Oil's Plunge Lifts the Dow

The market opened Monday with a clear relief bid — oil was cratering, futures were up nearly a percent, and the Dow looked ready to extend its July run. By the close, that optimism had been gutted by a semiconductor wreck. What walked in as a geopolitical de-escalation trade walked out as a rotation: industrials and financials held the line while chips and chip-equipment stocks absorbed the damage. The index prints look calm — they are not.

The Tape at the Close

The headline masks a wide internal divergence. The Dow and Russell 2000 posted solid gains; the Nasdaq 100 and the semiconductor ETF did not. Financials outperformed; energy lagged. The S&P 500 finished essentially flat — but flat was the average of powerful cross-currents, not a sign of calm.

The Semiconductor Wreck

The day’s defining move was in chips. NVIDIA closed down 4.98% at $196.53, shedding more than $10 per share. AMD dropped 5.17% to $494.95. The VanEck Semiconductor ETF (SMH) fell 2.25%. These are not rounding-error moves for names that anchor the Nasdaq and account for a disproportionate share of the index’s year-to-date return.

The catalyst was not earnings — NVIDIA has not yet confirmed a report date, and AMD is not scheduled until August 4 (after the close, estimated). Rather, the trigger came from the chip-equipment supply chain: reports surfaced that China has begun mass-producing homegrown deep ultraviolet (DUV) lithography machines, a direct challenge to ASML’s near-monopoly on the technology. ASML’s U.S.-listed shares fell approximately 6.5% on the news, and the contagion spread across the semiconductor complex.

This matters on two levels. First, the immediate read: if Chinese foundries can source DUV tools domestically, the export-control lever that Washington and its allies have spent years constructing loses force. ASML’s China revenue has already been declining — from roughly 36% of system sales to a materially lower share — and a domestic Chinese alternative would accelerate that erosion regardless of what the MATCH Act or any future U.S. legislation dictates. Second, the strategic read: the semiconductor investment thesis for the last two years has rested on AI-driven demand being so overwhelming that supply-side concerns are secondary. Today’s news introduces a supply-side variable that the bull case does not price in — not because Chinese DUV tools match ASML’s EUV quality, but because they may be good enough for the mature-node chips that still constitute the majority of global wafer output.

Oil Plunges on US-Iran Pause

While semis were selling off, oil was doing the opposite. WTI crude settled at $82.61 per barrel, down 7.50% on the day. Brent settled at $88.36, down 8.70%. The trigger was a weekend pause in hostilities between the United States and Iran, with both sides reportedly stepping back from escalating strikes to create “space” for diplomacy. Iran indicated it would suspend attacks as long as the U.S. refrained from striking.

The oil move is the mirror image of the semi move. Oil’s decline dragged the Energy Select Sector SPDR (XLE) down 2.08%. But lower oil is a tax cut for everything else — it eases the inflationary pressure that has been pushing the Fed toward an unwanted tightening, and it frees consumer spending that had been absorbing energy cost increases. The market’s early-morning rally was oil’s relief bid flowing through to equities. The problem is that oil’s relief could not offset semis’ damage in the market-cap-weighted indexes where NVDA and AMD carry enormous weight.

The critical question is durability. A pause is not a peace deal. Houthi threats to shipping in the Strait of Hormuz have not been withdrawn, and the history of U.S.-Iran escalation cycles suggests that a single weekend of restraint does not guarantee a lasting de-escalation. Oil markets priced the optimistic scenario today; if the pause breaks, the reversal could be sharp.

The Fed: A 17% Probability That Matters More Than It Looks

The FOMC meets Tuesday and Wednesday, with the rate decision due July 29. Polymarket traders put the odds of a 25-basis-point hike at just 17.4%, with an 82.5% probability of no change. That looks decisive — until you consider that the same markets assign a 71.5% probability to at least one rate hike at some point in 2026. In other words, the consensus view is not “no hike” but “not yet.”

The macro backdrop explains why the door stays open. CPI inflation is running at 3.46% year over year — above the Fed’s 2% target and unhelpfully sticky. The 10-year Treasury yield sits at 4.71%, up 21 basis points month over month, reflecting a bond market that is doing some of the Fed’s tightening for it. The federal funds rate is at 3.63%. Real GDP growth is a respectable 2.66% year over year. Unemployment, at 4.2%, is low and stable. This is not an economy that is screaming for a hike — but it is also not an economy that gives the Fed room to ease.

The most telling indicator is consumer sentiment, which plunged to 44.8 in the latest reading — down 14% year over year and 10% month over month. That is a recession-grade sentiment print in an economy that is not in recession. The FRED analog search finds the closest historical parallels in mid-2006 — the period just before the 2007-2009 downturn — when unemployment was similarly low, inflation was in the high-3s, and the yield curve was flattening. Those analogs did not turn into recession immediately; they took another 12-18 months. But the pattern is worth monitoring.

If oil’s plunge holds, it reduces the inflationary impulse that has been pushing hike odds higher. A week ago, oil near $100 had traders pricing as much as a 46.5% chance of a July hike. Today’s drop to $82 WTI has collapsed that to 17.4%. But Fed Chair Kevin Warsh has reportedly refused to give explicit forward guidance in his early tenure, which means the statement and press conference on July 29 will be parsed for tone more than for any change in the rate itself.

What to Watch Next

• Microsoft (MSFT) and Meta (META) earnings, July 29 after the close. Both report Wednesday AMC (estimated dates). Microsoft’s Azure growth rate and Meta’s AI infrastructure spend will set the tone for whether the AI capex thesis survives the week intact. If either signals deceleration, the semi selloff extends.

• Amazon (AMZN) and Apple (AAPL), July 30 after the close. Amazon’s AWS growth is the other leg of the cloud-AI demand story. Apple’s results will test whether consumer hardware demand is holding up alongside that deeply negative sentiment reading.

• Fed decision, July 29. No change is the base case (82.5% on Polymarket). Watch the statement language on inflation — any acknowledgment that energy-driven price pressure is easing would be dovish; any emphasis on sticky services inflation would keep a 2026 hike alive.

• China DUV follow-through. If the mass-production report is confirmed by Chinese state media or independent semiconductor research firms, the chip-equipment trade — long a consensus long — faces a structural question, not just a one-day reaction.

• Oil durability. WTI at $82 is a relief. If Iran-Houthi tensions reignite and crude retraces toward $90+, the Fed’s breathing room narrows again and the consumer sentiment deterioration accelerates.

The week’s setup is unusually dense: four of the five largest companies report earnings within 48 hours, and the Fed meets in the middle of it. The semiconductor break today is the first crack in what had been a one-way AI trade. Whether it widens or heals depends on what Microsoft and Meta say on Wednesday — and on whether the pause in the Gulf holds.