STORY: Wall Street's main indexes finished lower on Monday fueled by a decline in AI leader Nvidia.

The Dow shed more than half a percent, while the S&P 500 and Nasdaq each lost about six-tenths of a percent.

Nvidia fell two-and-a-half percent after China's market regulator launched an antitrust probe into the chipmaker.

While that weighed on other tech stocks, Jason Browne, president of Alexis Investment Partners, saw it as a blip in an otherwise ongoing bull market.

"We have, you know, pretty seasonally strong period through the end of the year. We think any pullbacks are probably a buying opportunity. And that's probably why, you know, when you do get a setback in a hot stock like Nvidia, which is what we're seeing today, you're not really seeing too much damage from it."

Chip maker Advanced Micro Devices slipped five-and-a-half percent after BofA Global Research downgraded the stock.

Shares of Oracle, down slightly at the close, dropped another seven-and-a-half percent in extended trading after the company missed Wall Street's estimates for second-quarter revenue.

Other stocks on the move included Comcast, down nine-and-a-half percent after forecasting a loss of more than 100,000 broadband subscribers in the fourth quarter.

And Hershey shares soared nearly 11% following a report that Cadbury parent Mondelez was exploring an acquisition of the chocolate maker. Mondelez shares fell.

This week's data includes Wednesday's consumer price index, followed by the producer price index on Thursday.

Both come ahead of next week's Federal Reserve policy meeting, during which the central bank is expected to lower interest rates by a quarter percentage point.