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8.24.2026 US Stock Daily丨Sanctions on Iran, Oil Falls Anyway; Money Rotates Out of Tech

The Dow rose 0.26% to close at 53,417.16, the S&P fell 0.28% to close at 7,652.86, and the Nasdaq fell 0.76% to close at 25,980.19 — the three major indices split in different directions. Sector performance tells a clearer story: Technology (XLK) fell 1.78%, while Consumer Staples (XLP) rose 1.70%, Financials (XLF) rose 1.29%, Utilities (XLU) rose 1.05%, and Communication Services (XLC) rose 0.83%. The VIX climbed to 15.85, up 4.76%, though the absolute level remains below 16. This combination doesn’t look like a retreat — it looks like a rotation.

Today’s most important divergence is in crude oil. Treasury Secretary Bessent announced a global economic blockade targeting five key sectors of Iran, and WTI closed at $85.18, down 2.16%, with the Energy sector (XLE) falling 0.83%. Escalating sanctions paired with falling oil prices is itself a signal. On Polymarket, the probability of the Strait of Hormuz returning to normal transit by the end of August sits at 0%, while the probability of the US announcing an end to the Iran blockade by the end of August is just 2%. Traders don’t believe the blockade will ease, nor are they paying a premium for supply disruption. Either the supply impact of this round of sanctions is already priced into $85, or the center of gravity in pricing has already shifted to the demand side. The OECD noted that G7 economic growth slowed to 0.3% in the second quarter — that number isn’t conclusive on its own, but it’s not nothing either.

The rate pricing side is worth dwelling on more. On Polymarket, the probability of the Fed holding rates steady at the September meeting is 64%, a 25bp hike is 34%, a 25bp cut is just 1%, and a 50bp cut is 0%. The market’s disagreement about the next move isn’t about how much to cut — it’s about whether the Fed hikes at all. The 10-year Treasury yield sits at 4.70%. Against this backdrop, Financials, Utilities, and Consumer Staples rallying in tandem suggests investors are buying cash-flow certainty, not pricing in easing.

There’s another thread moving at Treasury. Bessent said that despite the expanded buyback program, bond auctions will proceed as scheduled. Morgan Stanley estimates the Treasury could draw $80 billion to $200 billion from its TGA account at the Fed to support the expanded Treasury buyback operations; CNBC, meanwhile, reported that the Treasury is considering tapping nearly $950 billion in TGA funds for long-term bond buybacks. The two figures come from different sources with different methodologies, but they point to the same thing: the supply-demand structure at the long end could be artificially reshaped. Duration investors now have one more variable to watch closely.

Nvidia is impossible to ignore this week. The stock closed at $208.48, down for a seventh straight session, with RSI dropping to 41.4 — and earnings land this week. The Philadelphia Semiconductor Index was nearly wiped out across the board today, Tesla fell 3.92%, and QQQ’s implied volatility was pushed up to 74%. Selling growth names ahead of earnings isn’t new, but seven consecutive down days goes beyond the usual “pre-earnings de-risking” rhythm. In the options market, Nvidia’s call/put ratio stands at 2.03, while Meta’s is 4.20 — suggesting some traders are betting on a rebound cheaply through options rather than buying the underlying stock outright. Meta’s RSI, at 35.8, is the lowest among the major names. Separately, reports say Meta plans to launch an AI agent platform called “Hatch” in the coming weeks.

The tariff storyline produced a hard-to-reconcile picture today. Last Friday the US imposed a 50% tariff on roughly $20 billion of Canadian goods and has already begun implementation; Canadian ministers are set to announce their response on Tuesday. Trump said, “We desperately need aluminum, and we get most of it from Canada.” Desperately needing something while slapping a 50% tariff on it is usually not sustainable for long — Tuesday’s Canadian response will reveal which side blinks first.

Hard assets are running on a different track. Bitcoin rose roughly 23% last week, its biggest single-week gain in over three years, with US spot Bitcoin ETFs seeing nearly $2 billion in net weekly inflows — the highest in 10 months. Gold has risen for four straight sessions, up more than 6% cumulatively. Over the same period, the Dollar Index sits at 98.98, also up 0.19%. A strong dollar rising alongside strong gold typically points to hedging demand rather than liquidity spillover.

Cathie Wood’s moves today were also defensive in nature. ARKK trimmed PLTR by 7.4% and ARKW cut it by 8.0%, while RBLX was slashed by a full 33.9%. The buy was BWXT, increased by 15.4%. Rotating from software platforms into nuclear engineering aligns with today’s broader sector-level capital flows.

Three things to watch going forward. First, whether the semiconductor sector can recover after Nvidia’s earnings — if the results land and semis still don’t rally, this decline isn’t pre-earnings technical de-risking, it’s a valuation-level repricing. Second, where oil heads once the blockade moves into actual enforcement — if the supply side keeps tightening while WTI keeps falling, the demand problem is more serious than the market currently admits. Third, Canada’s tariff response on Tuesday, along with the actual scale of the Treasury’s buyback program rollout — the former determines whether the trade conflict keeps escalating, and the latter determines whether the pricing benchmark for long-end rates needs to be redrawn. If any one of these three goes the other way, today’s playbook of “defensive sectors leading, growth stocks bleeding” will need to be recalculated.