LYB·LyondellBasell Industries N.V.

Realized volatility (21d)

28.8% 54th pct

Below its peak

-51.3%

vs 200-day average

-4.5%

Up days (1y)

47%

LyondellBasell Industries N.V. is currently running 28.8% annualised volatility over the last 21 sessions. Measured against LYB's own 13 years of daily returns rather than a market-wide average, that is the 54th percentile — close to its own typical level, against a typical reading of 27.4%. 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.

LYB is trading -51.3% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -29.8%, and the deepest was -62.5% in 2020. The current drawdown is already deeper than this stock's typical annual low point, which puts it in the part of its range where past recoveries began — and where past declines also continued.

Price sits -4.5% from its 200-day moving average. Against every other day in its history, that gap ranks at the 39th percentile — close to the gap it normally carries. Over the past year LYB closed higher on 47% of sessions, and it is currently 3 sessions into a rising streak.

On October specifically: over 13 years of records, LYB finished the month higher 4 of 13 times, with a median return of -2.4% and an average of -2.7%. Its strongest month historically has been November at +3.1% on average, its weakest June at -3.2%. 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: LYB has opened more than 2% away from the prior close in 152 of 3,267 sessions (4.7% of the time), with the largest gaps running +10.3% and -9.6%. 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, LYB moved an average of 2.5% in the session after earnings, closing higher 2 of those 3 times, with a median move of +1.7% and a largest of +3.9%.

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