TLN·Talen Energy Corporation

Realized volatility (21d)

65.9% 77th pct

Below its peak

-28.1%

vs 200-day average

-8.1%

Up days (1y)

53%

Talen Energy Corporation is currently running 65.9% annualised volatility over the last 21 sessions. Measured against TLN's own 3 years of daily returns rather than a market-wide average, that is the 77th percentile — elevated for this stock, against a typical reading of 49.1%.

TLN is trading -28.1% below its running peak. Across 3 full years on file, its median worst-drawdown-in-a-year was -33.8%, and the deepest was -36.1% in 2026. The current pullback is therefore shallower than what this stock gives back in a typical year, which is context worth having before treating it as a dislocation.

Price sits -8.1% from its 200-day moving average. Against every other day in its history, that gap ranks at the 9th percentile — a narrower gap than it typically runs. Over the past year TLN closed higher on 53% of sessions, and it is currently 2 sessions into a falling streak.

Overnight risk is measurable too: TLN has opened more than 2% away from the prior close in 119 of 859 sessions (13.9% of the time), with the largest gaps running +43.8% and -6.9%.

Across the last 3 dated reports on file, TLN moved an average of 3.8% in the session after earnings, closing higher 1 of those 3 times, with a median move of -2.5% and a largest of -8.5%.

All figures computed from 860 daily closes between 2023-06-05 and 2026-11-05, split-adjusted, recomputed daily. Percentiles are against TLN's own 3-year history, not a peer group or index.