The S and P 500 lost about 2.7 percent for the week, the Nasdaq dropped 3.4 percent, and the Dow fell about 0.9 percent, in Wall Street worst week since June, a week made of a Wednesday rally, a Thursday rout that erased it, and a Friday bounce that recovered a fraction of it. The numbers are the story, because they show how quickly a market can change its mind, and how little it takes to erase a month of gains. The week began with optimism, and it ended with a correction, and the distance between the two was three trading days.
Why it matters
Wednesday was the rally. The market rose on the midterm results, with the Dow gaining 1,570 points, as investors welcomed the prospect of a divided government and a check on the administration. Thursday was the rout. The Nasdaq fell 5.52 percent, the S and P 500 dropped 4.36 percent, and the Dow lost 1,833 points, in the worst day for all three indexes since April 2025. The Philadelphia Semiconductor Index plunged 12.25 percent, its second biggest fall on record, with every member lower, and the seven largest technology stocks together lost more than 1 trillion dollars in market value. Friday was the bounce, with the Nasdaq up 1.09 percent, but the Dow fell again, down 0.46 percent.
The cause of the rout was the midterm result itself, read in a new light. Investors had welcomed the Democratic sweep on Wednesday, and then they reassessed what it means for the artificial intelligence buildout, and they decided it means slower approvals, tougher terms and higher costs. A new Congress is expected to scrutinise data centre construction, semiconductor exports, competition and energy use, and voters in at least 29 jurisdictions approved bans or restrictions on data centre building. Texas, Georgia and Ohio, which together hold nearly a third of the country operating and planned data centre capacity, all elected Democratic governors. The market read that as a slower buildout, and it sold the companies that depend on it.
What happens next
The week also rewrote the rate path, twice. On Thursday, interest rate traders pushed back the expected timing of the next Federal Reserve rate hike to March, after the selloff reshaped market pricing. On Friday, the stronger than expected jobs report, with 165,000 new jobs against 65,000 expected, pushed the odds of a December hike back up to about 78 percent, and the 10 year Treasury yield rose to about 4.87 percent. The dollar index gained about 0.7 percent to 102.22, its biggest daily gain in nearly five months. The rate path has swung twice in two days, and it may swing again on Tuesday, when the October inflation report is released.
What happens next will be decided by that inflation report, and by the market reaction to it. A hot consumer price reading would strengthen the case for a December hike and could send stocks lower again, while a cool one would let the bounce continue. For now, the week is a reminder of how fragile a rally can be, and how quickly a market that has risen for months can fall in a day. The Nasdaq is in correction territory, more than 10 percent below its record, and the question for the week ahead is whether the bounce was the start of a recovery, or only a pause before the next leg down.
