CET·Central Securities Corporation

Realized volatility (21d)

15.4% 68th pct

Below its peak

-1.3%

vs 200-day average

+6.7%

Up days (1y)

51%

Central Securities Corporation is currently running 15.4% annualised volatility over the last 21 sessions. Measured against CET's own 13 years of daily returns rather than a market-wide average, that is the 68th percentile — a little above its own norm, against a typical reading of 12.5%. 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.

CET is trading -1.3% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -12.0%, and the deepest was -41.0% 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 +6.7% from its 200-day moving average. Against every other day in its history, that gap ranks at the 68th percentile — a somewhat wider gap than its own norm. Over the past year CET closed higher on 51% of sessions, and it is currently 2 sessions into a rising streak.

On October specifically: over 13 years of records, CET finished the month higher 8 of 13 times, with a median return of +2.2% and an average of +1.1%. Its strongest month historically has been April at +1.9% on average, its weakest November at -1.9%. 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: CET has opened more than 2% away from the prior close in 73 of 3,266 sessions (2.2% of the time), with the largest gaps running +10.0% and -9.1%. 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 2013-10-07 and 2026-10-05, split-adjusted, recomputed daily. Percentiles are against CET's own 13-year history, not a peer group or index.