Talen Energy is trading 7.29% down at $331.80 after closing at $357.88 on August 11, 2026, with no fresh company-specific after-hours catalyst identified.

  • The latest major update was the August 5 earnings release, which raised 2026 adjusted EBITDA guidance to $2.025–$2.225 billion and free-cash-flow guidance to $1.2–$1.35 billion.
  • Bitcoin was up 0.02% and Ethereum down 0.05% since their prior closes, so crypto was not the driver.