Talen Energy is trading 4.56% higher at $342.85, with broader market gains a possible tailwind; no clear company-specific catalyst emerged. - It rebounded from its October 23 close of $327.91 as major U.S. indexes rose and stocks edged up ahead of earnings and the Federal Reserve meeting. - Bitcoin and Ethereum were lower; crypto moves do not explain the gain. - Analyst initiations and earlier sector news predate October 26 and are not established causes. Talen is a power-generation company.