On Thursday (February 22) evening, mainly due to the outstanding performance and expectations of artificial intelligence leading company Nvidia (NASDAQ: NVDA), the progress in the technology sector boosted the Wall Street market, U.S. stock index futures fell slightly。

Despite the Fed's warning that interest rates will remain high for a longer period of time, Nvidia's performance is still sought after by investors, with strong unemployment data supporting this belief。Weakness in the purchasing managers' index (PMI) in February was another disappointment, with business activity in the world's largest economy deteriorating.。

U.S. stocks overnight, S & P 500 up 2.1%, at 5,087.03 points, record high; Dow Jones industrial average up 1.2%, to 39,069.11; the Nasdaq composite index was the best performer, up more than 3% at 16,041 on Thursday.62 points。

On the day, the technology companies sector was the best performer, with Nvidia's rally extending into after-hours trading, where it surged 1.6% to 798.$00 new high as positive Q4 results and strong sales guidance for the quarter suggest demand for AI remains strong。

While the move was positive for the tech sector as a whole, the gains of other major tech stocks in after-hours trading did not continue, especially as long-term U.S. interest rates are likely to rise and the market is cautious about high valuations.。

After sharp gains earlier in the day, tech giants Google Parent (NASDAQ: GOOGL), Microsoft Corp. (NASDAQ: MSFT) and Meta Platform Inc. (NASDAQ: META), which own artificial intelligence technology, showed flat to low movements in after-hours trading.。

Fed concerns persist, though, after hawkish minutes and strong labor statistics。

After reiterating in the minutes of the Fed's late January meeting that the bank is in no hurry to start cutting rates, markets are concerned that long-term U.S. interest rates will remain high for a longer period of time.。

Many Fed members agree that they are concerned about sticky inflation and the strong performance of the labor market。Unexpected drop in weekly jobless claims released Thursday indicates good labor market conditions。

Among other after-hours actives, used car company Carvana Co (NYSE: CVNA) expects first-quarter core earnings of more than $100 million, with shares up more than 20 percent。

Shares of Block Inc (NYSE: SQ) rose 11% after beating quarterly revenue estimates and raising annual operating profit estimates。

Intuitive Machines Inc (NASDAQ: LUNR) shares surged 50% in after-hours trading as its Odysseus lunar lander successfully landed on the moon, becoming the first private and U.S. aircraft since 1972.。