Mirion Technologies Inc Class A (MIR) returns
Mirion Technologies returns over 5 years
$1,000 invested in Mirion Technologies five years ago was worth $1,735 at the close on October 30, 2026, with dividends reinvested: an average return of 11.6% a year. The same $1,000 in the S&P 500 (SPY) became $1,760.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | +30.1% | — | $1,301 | -0.9% |
| 3 months | +23.8% | — | $1,238 | +2.1% |
| Year to date | -21.6% | — | $784.37 | +11.7% |
| 1 year | -36.7% | — | $632.79 | +12.4% |
| 3 years | +165.8% | +38.5% | $2,658 | +88.5% |
| 5 years | +73.5% | +11.6% | $1,735 | +76.0% |
Mirion Technologies return by calendar year
| Year | MIR | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | -21.6% | +11.7% | -33.3% |
| 2025 | +34.2% | +17.7% | +16.5% |
| 2024 | +70.2% | +24.9% | +45.4% |
| 2023 | +55.1% | +26.2% | +28.9% |
| 2022 | -36.9% | -18.2% | -18.7% |
| 2021 | -3.9% | +28.7% | -32.7% |
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: MIR financials · MIR valuation
No forecast, no recommendation. This page describes Mirion Technologies Inc Class A 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.