Arthur J. Gallagher & Co. (AJG) returns
Arthur J. Gallagher returns over 10 years
$1,000 invested in Arthur J. Gallagher ten years ago was worth $6,675 at the close on October 30, 2026, with dividends reinvested: an average return of 20.9% 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 | +21.0% | — | $1,210 | -0.9% |
| 3 months | +7.9% | — | $1,079 | +2.1% |
| Year to date | +7.6% | — | $1,077 | +11.7% |
| 1 year | +6.6% | — | $1,066 | +12.4% |
| 3 years | +21.6% | +6.7% | $1,216 | +88.5% |
| 5 years | +73.4% | +11.6% | $1,734 | +76.0% |
| 10 years | +567.5% | +20.9% | $6,675 | +316.6% |
Arthur J. Gallagher return by calendar year
| Year | AJG | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | +7.6% | +11.7% | -4.0% |
| 2025 | -8.0% | +17.7% | -25.7% |
| 2024 | +27.3% | +24.9% | +2.5% |
| 2023 | +20.5% | +26.2% | -5.7% |
| 2022 | +12.4% | -18.2% | +30.6% |
| 2021 | +39.0% | +28.7% | +10.3% |
| 2020 | +32.2% | +18.4% | +13.8% |
| 2019 | +31.8% | +31.2% | +0.6% |
| 2018 | +19.2% | -4.6% | +23.7% |
| 2017 | +25.0% | +21.7% | +3.3% |
| 2016 | +31.1% | +12.0% | +19.1% |
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: AJG valuation
No forecast, no recommendation. This page describes Arthur J. Gallagher & Co. 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.