LH·Labcorp Holdings Inc.

Realized volatility (21d)

18.2% 42nd pct

Below its peak

-7.7%

vs 200-day average

+11.0%

Up days (1y)

51%

Labcorp Holdings Inc. is currently running 18.2% annualised volatility over the last 21 sessions. Measured against LH's own 13 years of daily returns rather than a market-wide average, that is the 42nd percentile — close to its own typical level, against a typical reading of 19.5%. 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.

LH is trading -7.7% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -17.3%, and the deepest was -46.6% 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 +11.0% from its 200-day moving average. Against every other day in its history, that gap ranks at the 79th percentile — a somewhat wider gap than its own norm. Over the past year LH closed higher on 51% of sessions, and it is currently 2 sessions into a falling streak.

On October specifically: over 14 years of records, LH finished the month higher 10 of 14 times, with a median return of +1.6% and an average of +1.1%. Its strongest month historically has been July at +4.1% on average, its weakest March at -2.8%. 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: LH has opened more than 2% away from the prior close in 97 of 3,268 sessions (3.0% of the time), with the largest gaps running +27.8% and -7.0%. 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, LH moved an average of 1.9% in the session after earnings, closing higher 1 of those 3 times, with a median move of -2.0% and a largest of -2.9%.

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