I sold my shares, but I may have made a huge mistake.Shares of connected-TV (CTV) platform company Roku (ROKU 1.26%) dropped a discouraging 19% in 2024, drastically underperforming the 23% gain for the S&P 500. But I was hopeful about the company's prospects for 2025. On Dec. 22, 2024, I wrote an article saying that Roku stock could bounce back.Bounce back it did. Roku stock raced to a 46% gain in 2025, easily outpacing the market's gains. Granted, it's still down 78% from its all-time high all the way back ...