Historical annual and monthly returns for LyondellBasell (LYB).
For LyondellBasell (LYB), the strongest completed calendar year was 2012, when the stock returned 92.6%, while its weakest was 2025, with a return of -35.9%. Across the 15 completed calendar years from 2011 through 2025, its average annual return was 12.8% and its compounded annual return was 9.0%. LYB posted positive returns in 11 of those 15 years (73%). In 2025, the latest completed year, it returned -35.9%. In 2026 year to date, LYB has returned 39.1%.
Returns are calculated from the adjusted daily closing prices for LyondellBasell (LYB). Annual returns measure the percentage change between the final available trading prices of consecutive calendar years. Monthly returns use the corresponding month-end observations. Adjusted prices account for stock splits and distributions when supplied by the market-data provider. Results are nominal and are not adjusted for inflation.
