STLD·Steel Dynamics, Inc.

Realized volatility (21d)

26.9% 19th pct

Below its peak

-14.2%

vs 200-day average

+11.2%

Up days (1y)

51%

Steel Dynamics, Inc. is currently running 26.9% annualised volatility over the last 21 sessions. Measured against STLD's own 13 years of daily returns rather than a market-wide average, that is the 19th percentile — unusually subdued by its own history, against a typical reading of 34.4%. 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.

STLD is trading -14.2% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -26.9%, and the deepest was -53.9% 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 +11.2% from its 200-day moving average. Against every other day in its history, that gap ranks at the 58th percentile — a somewhat wider gap than its own norm. Over the past year STLD closed higher on 51% of sessions, and it is currently 3 sessions into a rising streak.

On October specifically: over 13 years of records, STLD finished the month higher 12 of 13 times, with a median return of +7.4% and an average of +6.8%. Its strongest month historically has been October at +6.8% on average, its weakest December at -2.4%. 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: STLD has opened more than 2% away from the prior close in 271 of 3,267 sessions (8.3% of the time), with the largest gaps running +10.9% and -8.5%. 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, STLD moved an average of 2.8% in the session after earnings, closing higher 2 of those 3 times, with a median move of +3.3% and a largest of +5.0%.

All figures computed from 3,268 daily closes between 2013-10-07 and 2026-10-05, split-adjusted, recomputed daily. Percentiles are against STLD's own 13-year history, not a peer group or index.