The worst day for Nvidia’s stock since last spring dragged the U.S. market lower, even though most stocks rose. The S&P 500 fell 0.5% Thursday.

Futures fell as AI disruption fears revived. Block, Netflix, Applied Opto were winners late. Earlier, the S&P 500 held key support despite Nvidia's tumble.

Nvidia was one of the strongest forces lifting the market and rose 1.4% ahead of its highly anticipated profit report, which was scheduled to arrive shortly after trading ended for the day. Because Nvidia has grown to become the U.S. market’s largest stock by value, it has more influence on the S&P 500 than any other company.

As of 9:35 a.m. Eastern Time, the S&P 500 slipped 0.1% and the Nasdaq Composite was 0.4% lower. The Dow Jones Industrial Average was up 0.5%.

U.S. stocks rose and erased their losses for the week so far, as Nvidia and other technology companies led the way.

S&P 500 futures are up 0.1%. Dow Jones Industrial Average futures are climbing 0.1%. Nasdaq 100 futures are adding 0.2%. On Tuesday, the Dow Jones Industrial Average rose 370 points, or 0.76%, to 49,174.

The Dow Jones Industrial Average blew past the historic 50,000 mark on Friday and the S&P 500 ended sharply higher, as Nvidia and other chipmakers soared and Amazon tumbled after the cloud heavyweight forecast a sharp increase in spending on AI infrastructure.

The S&P 500 Index ($SPX) (SPY) on Thursday closed down -0.54%, the Dow Jones Industrial Average ($DOWI) (DIA) closed up +0.03%, and the Nasdaq 100 Index ($IUXX) (QQQ) closed down -1.16%. March E-mini S&P futures (ESH26) fell -0.

The Dow Jones Industrial Average slid 821.91 points, or 1.66%, to close at 48,804.06. The S&P 500 dropped 1.04% to 6,837.75, while the Nasdaq Composite declined 1.13% to 22,627.27.