Heading into trading on Monday, the S&P 500 was down around 5% to start 2025. Investors are worried about what lies ahead for the economy, and as a result, stocks have been in a free fall. The three worst-performing stocks on the broad index as of Monday were Deckers Outdoor (DECK 1.44%), Tesla (TSLA 3.62%), and On Semiconductor (ON -1.33%). Are these beaten-down stocks worth buying today, or should investors hold off on doing so? Here's a closer look at each one of them and why they may or may not be able ...