FFIV·F5, Inc.

Realized volatility (21d)

33.3% 73rd pct

Below its peak

0.0%

vs 200-day average

+37.3%

Up days (1y)

56%

F5, Inc. is currently running 33.3% annualised volatility over the last 21 sessions. Measured against FFIV's own 13 years of daily returns rather than a market-wide average, that is the 73rd percentile — a little above its own norm, against a typical reading of 25.5%. 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.

FFIV is at its running peak. Across 12 full years on file its median worst-drawdown-in-a-year was -23.6%, with the deepest at -44.7% in 2022 — so highs have historically been given back before they were extended.

Price sits +37.3% from its 200-day moving average. Against every other day in its history, that gap ranks at the 99th percentile — a wider gap than this stock usually carries. Over the past year FFIV closed higher on 56% of sessions, and it is currently 1 session into a rising streak.

On October specifically: over 13 years of records, FFIV finished the month higher 6 of 13 times, with a median return of -2.2% and an average of -1.2%. Its strongest month historically has been November at +5.0% on average, its weakest October 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: FFIV has opened more than 2% away from the prior close in 121 of 3,266 sessions (3.7% of the time), with the largest gaps running +5.7% and -11.7%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

All figures computed from 3,267 daily closes between 2013-10-14 and 2026-10-09, split-adjusted, recomputed daily. Percentiles are against FFIV's own 13-year history, not a peer group or index.