The Dow Jones underperformed the other major indexes on the stock market today. GameStop climbed while Samsara broke out of a base.

Traders and investors watch Wall Street's major averages finish out the week on Friday in a mixed  fashion. Learn more here.

Dow Jones dived after hot inflation data in the stock market today. Nvidia partner SMCI soared. Fed Powell continued his ...

Pfizer terminated partnership with Sangamo on hemophilia A gene therapy despite positive Phase 3 data. Find out why SGMO ...

The stock market is open for business between 9:30 a.m. and 4 p.m. Monday to Friday. Billions of shares are traded in the American markets, making them very liquid and efficient.

Palantir's key contracts like the Army Vantage extension and TITAN system will benefit the tech giant for some time. Read ...

Palantir's CEO predicts the AI revolution is just beginning. Find out why PLTR stock remains a strong buy for long-term ...

US stocks mostly rose on Thursday as investors look at earnings. Amazon issues weak sales outlook after the close. Monthly jobs data due Friday.

Arm Holdings beat views, but tumbled late. That's after ARM stock, Nvidia and other AI chips rebounded Wednesday.

Stock index futures fell sharply on Wednesday, with Nasdaq futures bottoming the pack, after investors were left unimpressed with Alphabet's results.

Alphabet's Q4 results were mixed, leading to a 7%+ stock drop in after-hours trading. Read why I think the dip in GOOGL stock ...

Investors who anticipate trading during these times are strongly advised to use limit orders. Data is delayed at least 15 minutes. Nasdaq.com will report pre-market and after hours trades.