APG·APi Group Corporation

Realized volatility (21d)

35.2% 56th pct

Below its peak

-26.9%

vs 200-day average

-12.1%

Up days (1y)

52%

APi Group Corporation is currently running 35.2% annualised volatility over the last 21 sessions. Measured against APG's own 7 years of daily returns rather than a market-wide average, that is the 56th percentile — close to its own typical level, against a typical reading of 33.6%. 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.

APG is trading -26.9% below its running peak. Across 6 full years on file, its median worst-drawdown-in-a-year was -22.0%, and the deepest was -62.2% 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 -12.1% from its 200-day moving average. Against every other day in its history, that gap ranks at the 8th percentile — a narrower gap than it typically runs. Over the past year APG closed higher on 52% of sessions, and it is currently 2 sessions into a falling streak.

On September specifically: over 7 years of records, APG finished the month higher 0 of 7 times, with a median return of -5.7% and an average of -6.5%. Its strongest month historically has been November at +10.4% on average, its weakest September at -6.5%. 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: APG has opened more than 2% away from the prior close in 180 of 1,707 sessions (10.5% of the time), with the largest gaps running +18.4% and -13.8%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

All figures computed from 1,708 daily closes between 2019-11-26 and 2026-09-15, split-adjusted, recomputed daily. Percentiles are against APG's own 7-year history, not a peer group or index.