Mumbai, Feb. 5 -- The Nasdaq ended the day off its lows of the session but still tumbled 350.61 points (1.5%) to 22,904.58. The S&P 500 also slid 35.09 points (0.5%) to 6,882.72 while the narrower Dow climbed 260.31 points (0.5%) to 49,501.30.

The Dow rallied sharply, boosted by an 8.2% surge in Amgen (AMGN) after its stronger-than-expected Q4 results, while 3M (MMM) and Nike (NKE) also advanced over 5%, supporting the blue-chip rebound. In contrast, tech stocks faced heavy selling as semiconductor shares tumbled, with the Philadelphia Semiconductor Index plunging 4.4%. Advanced Micro Devices (AMD) slumped 17.3% amid disappointing Q1 guidance, dragging computer hardware and networking stocks lower and weighing on the Nasdaq.

Pharmaceuti...