Nvidia was gaining on Monday amid further signs of strong demand for artificial-intelligence chips. Nvidia shares were up 2.1% at $147.43 in premarket trading. The stock rose 4.5% on Friday. Taiwan’s Foxconn—also known as Hon Hai Precision Industry—said Sunday strong AI server demand helped drive its fourth-quarter sales and first-quarter results should “show significant growth.

U.S. stock indexes are rising to recover more of the holiday-season slide that bridged the new year. The S&P 500 was 0.8% higher in early trading Monday and on track for a second straight gain following five straight losses.

The S&P 500 moved into positive territory for the month after snapping its longest losing streak since April last week.