AWK·American Water Works Company, Inc.

Realized volatility (21d)

16.1% 33rd pct

Below its peak

-32.3%

vs 200-day average

-3.1%

Up days (1y)

49%

American Water Works Company, Inc. is currently running 16.1% annualised volatility over the last 21 sessions. Measured against AWK's own 13 years of daily returns rather than a market-wide average, that is the 33rd percentile — on the quiet side for this stock, against a typical reading of 18.8%. 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.

AWK is trading -32.3% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -16.9%, and the deepest was -31.6% in 2022. 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 -3.1% from its 200-day moving average. Against every other day in its history, that gap ranks at the 22nd percentile — a narrower gap than it typically runs. Over the past year AWK closed higher on 49% of sessions, and it is currently 1 session into a falling streak.

On October specifically: over 13 years of records, AWK finished the month higher 8 of 13 times, with a median return of +1.3% and an average of +2.3%. Its strongest month historically has been July at +3.4% on average, its weakest September at -2.6%. 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: AWK has opened more than 2% away from the prior close in 55 of 3,267 sessions (1.7% of the time), with the largest gaps running +7.0% and -12.6%. 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, AWK moved an average of 0.9% in the session after earnings, closing higher 2 of those 3 times, with a median move of +0.0% and a largest of -1.4%.

All figures computed from 3,268 daily closes between 2013-10-07 and 2026-10-05, split-adjusted, recomputed daily. Percentiles are against AWK's own 13-year history, not a peer group or index.