LNT·Alliant Energy Corporation

Realized volatility (21d)

14.4% 28th pct

Below its peak

-15.1%

vs 200-day average

-6.0%

Up days (1y)

53%

Alliant Energy Corporation is currently running 14.4% annualised volatility over the last 21 sessions. Measured against LNT's own 13 years of daily returns rather than a market-wide average, that is the 28th percentile — on the quiet side for this stock, against a typical reading of 16.9%. The distinction matters because a number that looks calm for one stock is turbulent for another, and the absolute figure on its own tells you neither.

LNT is trading -15.1% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -12.1%, and the deepest was -33.5% in 2020. The current drawdown is already deeper than this stock's typical annual low point, which puts it in the part of its range where past recoveries began — and where past declines also continued.

Price sits -6.0% 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 LNT closed higher on 53% of sessions, and it is currently 2 sessions into a falling streak.

On September specifically: over 14 years of records, LNT finished the month higher 6 of 14 times, with a median return of -1.8% and an average of -1.7%. Its strongest month historically has been March at +3.6% on average, its weakest September at -1.7%. Seasonality is a weak signal on its own — a decade is a small sample and regimes change — but it is a real distribution rather than a rule of thumb.

Overnight risk is measurable too: LNT has opened more than 2% away from the prior close in 60 of 3,268 sessions (1.8% of the time), with the largest gaps running +6.2% and -6.7%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

Across the last 3 dated reports on file, LNT moved an average of 1.0% in the session after earnings, closing higher 2 of those 3 times, with a median move of +0.8% and a largest of +2.2%.

All figures computed from 3,269 daily closes between 2013-09-16 and 2026-09-15, split-adjusted, recomputed daily. Percentiles are against LNT's own 13-year history, not a peer group or index.