Investors zero in on Nvidia results as US tech stocks waver

NEW YORK (Reuters) -A wobble in U.S. technology shares has raised the stakes for Nvidia Corp's quarterly results on Wednesday, with earnings from the semiconductor giant posing a crucial test for the scorching AI trade. The benchmark S&P 500 has pulled back this week from record levels, dragged lower by a roughly 3% drop so far this week in the heavyweight tech sector after a huge run for the group. Fueled by its dominant artificial intelligence (AI) products, Nvidia's massive share price gains have buoyed both the tech sector and the overall market in recent years.