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S&P 500 Closes Out August 24-28 Week Up 0.5% Despite Friday's Warsh-Driven Selloff

S&P 500 gained 0.5% the week of Aug 24-28 as Nvidia beat Q2 estimates and Fed Chair Warsh's inflation warning lifted September hike odds to 57%.

The trading week of August 24-28, 2026 ended with US stocks higher, though barely, and the last session told a more nervous story than the weekly headline. Here is what actually moved the market this week, with every figure checked against its original source.

How did the S&P 500, Nasdaq, and Dow perform this week?

The S&P 500 rose 0.5%, the Nasdaq Composite gained 0.9%, and the Dow Jones Industrial Average added 0.5%, its first winning week in three. Friday's session closed lower across the board: S&P 500 at 7,711.76 (down 0.25%), Nasdaq Composite at 26,402.42 (down 0.52%), and the Dow at 53,559.99 (down just 9.45 points).

Monday through Thursday carried the week. The S&P 500 closed higher on August 24 as Treasury yields retreated, and Nvidia's earnings beat helped push the S&P 500 and Nasdaq higher on August 26. Friday erased some of that. The full Friday close and weekly tally are here, with a second read on the Friday session from Yahoo Finance.

Why did stocks fall on the last day of a winning week?

Fed Chair Kevin Warsh flagged persistent inflation risk in Friday remarks, and traders responded by pushing September rate-hike odds up to 57%. That is a meaningful jump for a Fed that markets had mostly priced for a hold, and it is why a positive week still closed on a down note.

Warsh told the market that price stability remains the Fed's predominant focus right now, according to the Yahoo Finance recap of the speech, which put September hike odds at that same 57% level. The CNBC live coverage of the same session ties the S&P's Friday drop directly to that hawkish shift. Odds on a hike, not a cut, are the story here, a reminder that this cycle's rate risk still cuts both ways.

Which sectors and stocks actually moved the market?

Communication Services gained 1.4% and Technology gained 1.3%, the week's two leading sectors, but breadth stayed thin. Fewer than half of individual stocks advanced and only 3 of the S&P's 11 sectors finished the week higher, so the index gain masked a market where most names went nowhere or fell.

That split matters more than the headline number. The full sector and breadth breakdown for the week is here. A market where two sectors carry the index while the other nine lag is a market where an index-level chart tells you almost nothing about what most portfolios actually did this week.

What did Nvidia's earnings show, and why did it matter for the whole week?

Nvidia reported August 26 after the close: revenue of $96.22 billion against a consensus of $92.17 billion, a beat of roughly 4.4%. Non-GAAP EPS came in at $2.22 versus a $2.10 estimate, GAAP EPS was $2.46, up 128% year over year, and the company guided third-quarter revenue to $108 billion, plus or minus 2%.

Nvidia's own investor relations release carries the full Q2 FY27 results, with a secondary breakdown of the beat and guidance here. The size of the beat is a large part of why Technology led the week's sector table even after Friday's pullback.

What did this week's economic data show?

Initial jobless claims for the week came in at 203,000, below the 208,000 forecast and down from a revised 207,000 the week before. Continuing claims fell to 1.778 million, and the four-week moving average ticked up slightly to 205,500, still a level consistent with a tight labor market rather than a weakening one.

The Department of Labor's release has the full weekly claims data, cross-checked against the Trading Economics claims series. Earlier in the week, the Conference Board's July Consumer Confidence release showed the index at 90.8, its third straight monthly decline, and the S&P Cotality Case-Shiller home price report showed national home prices up just 1.1% year over year, still running below inflation.

What set up next week's catalyst?

Low volatility, a range-bound index, and a labor market reading below forecast are exactly the ingredients that tend to precede a bigger directional move. The next major economic release, the August jobs report, is the one most likely to provide it.

That report will land against a backdrop where the Fed's own chair just talked up hike odds rather than cut odds, which is not the setup most of the market spent the first half of 2026 positioning for.

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