First Solar (FSLR) Stock After Hours Today (Dec. 23, 2025): Why Shares Fell, What’s Driving the Outlook, and What to Watch Before Markets Open Dec. 24
First Solar, Inc. (NASDAQ: FSLR) ended Tuesday, December 23, 2025 sharply lower after Monday’s breakout rally, then held steady in after-hours trading—setting up a holiday-shortened session on Wednesday, December 24, when U.S. stock markets close early for Christmas Eve. The