PWR·Quanta Services, Inc.

Realized volatility (21d)

32.9% 63rd pct

Below its peak

-12.4%

vs 200-day average

+11.8%

Up days (1y)

52%

Quanta Services, Inc. is currently running 32.9% annualised volatility over the last 21 sessions. Measured against PWR's own 13 years of daily returns rather than a market-wide average, that is the 63rd percentile — a little above its own norm, against a typical reading of 28.3%. 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.

PWR is trading -12.4% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -24.4%, and the deepest was -42.4% in 2020. 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 +11.8% from its 200-day moving average. Against every other day in its history, that gap ranks at the 55th percentile — close to the gap it normally carries. Over the past year PWR closed higher on 52% of sessions, and it is currently 3 sessions into a falling streak.

On October specifically: over 14 years of records, PWR finished the month higher 10 of 14 times, with a median return of +3.4% and an average of +2.4%. Its strongest month historically has been February at +5.4% on average, its weakest December at -1.2%. 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: PWR has opened more than 2% away from the prior close in 184 of 3,268 sessions (5.6% of the time), with the largest gaps running +6.7% and -19.5%. 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, PWR moved an average of 1.6% in the session after earnings, closing higher 2 of those 3 times, with a median move of +2.2% and a largest of +2.4%.

All figures computed from 3,269 daily closes between 2013-10-15 and 2026-10-14, split-adjusted, recomputed daily. Percentiles are against PWR's own 13-year history, not a peer group or index.