Palantir’s stock falls despite upbeat earnings. Here are Wall Street’s quibbles.

Options traders can't get enough of semiconductor stocks.

Micron has emerged as one of the most valuable U.S. tech companies thanks to insatiable demand for memory that's needed in AI chips.

Spirit Airlines was back in bankruptcy court to start dismantling the airline.

The rolling 25-day performance for one index of semiconductor stocks has reached its highest level since March 9, 2000 —the day before the dot-com bubble peaked.