AI pioneer Nvidia was again the heaviest weight on the market. The chipmaker's drop of 3.2% brought its loss for the month to nearly 11%, putting it in "correction" territory, or when a stock falls at least 10% from its previous high. The company is scheduled to report is third-quarter financial results on Wednesday.

The tides of investor sentiment seem to be shifting, with more investors feeling pessimistic about the future. Just under 50% of U.S. investors are "bearish" about the next six months, according to the most recent weekly survey from the American Association of Individual Investors, with only around 32% feeling "bullish."

All three major U.S. stock indexes finish higher on Wednesday as traders wait to see Nvidia's results after the close.

Torsten Slok, chief economist at Apollo, pointed out in a note Monday that stocks and home values keep climbing while cash flow from fixed income and private credit hover at multi-decade highs.

The seemingly sturdy U.S. stock market has begun to wobble. Its months'-long tech-driven rally may be running out of steam amid growing wariness about the artificial intelligence boom and broader uncertainty about the U.S. economy’s outlook.

The 50-day moving average is a technical indicator calculated as the average closing price of a security or stock market index over the last 50 trading days. Excluding the present, the S&P 500 has dropped below its 50-day moving average 74 times in the past decade.

Nvidia reported more eye-catching numbers for its fiscal third quarter Wednesday, with net income jumping 65% and revenue increasing 62% from a year earlier

U.S. stocks ended a choppy session higher on Wednesday, rebounding from recent losses as technology stocks rose ahead of Nvidia's quarterly results. Lisa Bernhard has more. Democrat wins in Virginia and New Jersey 'sent a message' across the U.