Historical annual and monthly returns for Marsh McLennan (MRSH).
For Marsh McLennan (MRSH), the strongest completed calendar year was 2021, when the stock returned 50.8%, while its weakest was 2004, with a return of -29.8%. Across the 26 completed calendar years from 2000 through 2025, its average annual return was 9.4% and its compounded annual return was 7.7%. MRSH posted positive returns in 14 of those 26 years (54%). In 2025, the latest completed year, it returned -11.3%. In 2026 year to date, MRSH has returned -6.3%.
Returns are calculated from the adjusted daily closing prices for Marsh McLennan (MRSH). 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.
