Historical annual and monthly returns for Leidos (LDOS).
For Leidos (LDOS), the strongest completed calendar year was 2019, when the stock returned 88.8%, while its weakest was 2011, with a return of -22.5%. Across the 19 completed calendar years from 2007 through 2025, its average annual return was 14.2% and its compounded annual return was 11.1%. LDOS posted positive returns in 11 of those 19 years (58%). In 2025, the latest completed year, it returned 26.5%. In 2026 year to date, LDOS has returned -31.5%.
Returns are calculated from the adjusted daily closing prices for Leidos (LDOS). 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.
