GOOGL·Alphabet Inc.

Realized volatility (21d)

21.7% 41st pct

Below its peak

-11.6%

vs 200-day average

+4.8%

Up days (1y)

51%

Alphabet Inc. is currently running 21.7% annualised volatility over the last 21 sessions. Measured against GOOGL's own 13 years of daily returns rather than a market-wide average, that is the 41st percentile — close to its own typical level, against a typical reading of 24.4%. 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.

GOOGL is trading -11.6% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -18.5%, and the deepest was -44.3% in 2022. 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 +4.8% from its 200-day moving average. Against every other day in its history, that gap ranks at the 38th percentile — close to the gap it normally carries. Over the past year GOOGL closed higher on 51% of sessions, and it is currently 4 sessions into a rising streak.

On October specifically: over 14 years of records, GOOGL finished the month higher 10 of 14 times, with a median return of +4.8% and an average of +4.3%. Its strongest month historically has been July at +6.5% on average, its weakest February at -3.9%. 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: GOOGL has opened more than 2% away from the prior close in 55 of 3,268 sessions (1.7% of the time), with the largest gaps running +4.9% and -6.4%. 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, GOOGL moved an average of 3.0% in the session after earnings, closing higher 1 of those 3 times, with a median move of -2.9% and a largest of -3.5%.

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