Marsh McLennan (MRSH) returns
Marsh McLennan returns over 10 years
$1,000 invested in Marsh McLennan ten years ago was worth $3,744 at the close on October 30, 2026, with dividends reinvested: an average return of 14.1% a year. The same $1,000 in the S&P 500 (SPY) became $4,166.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | +18.2% | — | $1,182 | -0.9% |
| 3 months | +5.4% | — | $1,054 | +2.1% |
| Year to date | +10.5% | — | $1,105 | +11.7% |
| 1 year | +14.7% | — | $1,147 | +12.4% |
| 3 years | +12.2% | +3.9% | $1,122 | +88.5% |
| 5 years | +30.3% | +5.4% | $1,303 | +76.0% |
| 10 years | +274.4% | +14.1% | $3,744 | +316.6% |
Marsh McLennan return by calendar year
| Year | MRSH | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | +10.5% | +11.7% | -1.2% |
| 2025 | -11.3% | +17.7% | -29.0% |
| 2024 | +13.7% | +24.9% | -11.1% |
| 2023 | +16.1% | +26.2% | -10.0% |
| 2022 | -3.4% | -18.2% | +14.7% |
| 2021 | +50.8% | +28.7% | +22.1% |
| 2020 | +6.8% | +18.4% | -11.5% |
| 2019 | +42.3% | +31.2% | +11.1% |
| 2018 | -0.1% | -4.6% | +4.4% |
| 2017 | +22.7% | +21.7% | +1.0% |
| 2016 | +24.5% | +12.0% | +12.5% |
Past returns do not predict future returns. Returns are computed from our daily closes, adjusted for splits and with dividends reinvested on their ex-dates; taxes and trading costs are left out.
See also: MRSH valuation
No forecast, no recommendation. This page describes Marsh McLennan from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.