But when you look at the carnage in the past six weeks since the DeepSeek developments rocked the technology sector, one company is largely responsible for the lost market value. That's Nvidia Corp.

So far this year the S&P 500 has only declined by 1.9%. But its information-technology sector is down 7.5%. And its consumer-discretionary sector, which includes companies such as Amazon.com Inc.

This week marks the 25th anniversary of the Nasdaq peak, but all wasn’t lost in the ensuing downturn.

Company plans to increase U.S. investment in advanced semiconductor manufacturing by $100 billion with three new fabs, two advanced packaging facilities and an R&D center added to U.S. plans ...