Technology stocks held up better than the broader market Tuesday. Tariffs walloped the physical economy, but the services sector proved more immune, in investors' estimation.

President Trump and TSMC Chairman C.C. Wei announced the company's $100-billion investment in U.S. chip manufacturing facilities in Arizona, a total of five new plants.

Nvidia stock bounced back on Tuesday, erasing losses seen earlier in the day. Following a drop in the morning, Nvidia shares ...