The numbers
The Nasdaq Composite closed on Thursday, October 15, up 20.16 points, or 0.08%, at 26,713.03, after trading as low as 26,308.85, according to index data and CNBC, which said the index was down 1.4% at one point. The S&P 500 rose 0.33% to 7,744.06 and the Dow Jones Industrial Average added 556.21 points, or 1.08%, to 52,177.69.
For context, the Nasdaq closed on Wednesday, October 14, at 26,692.87, a 1.88% fall on the day, and on Friday, October 9, at 27,366.17. On those figures, Thursday's close is about 653 points, or roughly 2.4%, below the previous Friday. This is a week-to-Thursday measure; the weekly result depends on Friday's session, which had not opened when this piece was written.
What drove the rebound
The clearest catalyst was in bonds. The 10-year Treasury yield fell about 10 basis points to roughly 5.09% on Thursday, the largest daily drop in more than a year, according to Sharecast. FinancialMarkets.com reported that stocks followed bonds rather than the inflation data: producer prices rose 1.3% in September, the biggest monthly gain since March 2022, yet the rate-sensitive parts of the market rallied.
Sector reporting points to rotation rather than a broad tech recovery. FinancialMarkets.com reported the iShares homebuilder ETF up 4% and bank and regional-bank ETFs up 1.7% and 1.8%, while energy shares fell 1.6%. Sharecast said investors moved into healthcare, consumer and financial stocks. That pattern fits a Dow outperforming a tech-heavy Nasdaq.
Energy's decline came even as US crude settled up 3% at $97.97 a barrel, the same report said, a reminder that sector moves on the day did not simply track commodity prices.
Tech: mixed, not repaired
Within technology, Thursday was split. CoreWeave rose about 6% and Oracle about 3% after heavy losses on Wednesday, FinancialMarkets.com reported. But Nvidia and AMD finished lower, Taiwan Semiconductor's US shares fell 1.8% despite results above its own forecast, and the Philadelphia semiconductor index fell 0.9%, its seventh straight decline and about 12.4% over that run, the same report said.
Commentators connected the week's selling to worries about the cost and financing of AI infrastructure. AJ Bell's Danni Hewson told Sharecast that nervousness had been growing "about the speed with which vast sums of cash are being spent on the race for AI domination." That is a market interpretation, not a measured cause; we found no breadth data for Thursday's Nasdaq session that would show how widely the rebound spread, and we do not claim one.
Why the distinction matters
A small up day after a large down day can look like stabilisation, but the index level tells a different story: most of the week's decline remains in place. Investors who judge the week from Thursday's headline gain alone would miss that the rebound recovered only a sliver of Wednesday's 1.88% drop.
What to watch
Friday's close will set the actual weekly result. Beyond that, the chip index's losing streak, the direction of long Treasury yields, and the Federal Reserve's October 27-28 meeting are the next tests of whether the rotation out of AI suppliers continues.