FLR vs MIR: Correlation
How closely do Fluor Corporation (FLR) and Mirion Technologies, Inc. (MIR) trade together? Their weekly returns over three years give a correlation of 0.52, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FLR and MIR?
Across a 3-year window, the weekly returns of FLR and MIR correlate at 0.52, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.37 versus 0.52 over 3 years. Stretching to 5 years gives 0.43, with an annualized covariance of 890.5 %².
MIR is one of the assets that tracks FLR most closely: it ranks #2 out of the 10 assets we track against FLR. Their recent paths diverged sharply: over the last 12 months FLR outperformed by 58.9 percentage points (+31.6% for FLR against -27.3% for MIR).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
FLR vs MIR: side by side
| FLR (Fluor Corporation) | MIR (Mirion Technologies, Inc.) | |
|---|---|---|
| 1-year return | +31.6% | -27.3% |
| 5-year return | +231.5% | +49.5% |
| Volatility (ann.) | 41.3% | 41.2% |
| Beta vs S&P 500 | 1.17 | 1.53 |
| Max drawdown (3Y) | -47.6% | -51.0% |
| Market cap | $7.2B | $3.7B |
| P/E (trailing) | – | 165.0 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FLR | MIR |
|---|---|---|
| 2022 | +39.9% | -36.9% |
| 2023 | +13.0% | +55.1% |
| 2024 | +25.9% | +70.2% |
| 2025 | -19.6% | +34.2% |
| 2026 | +36.5% | -36.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FLR and MIR good diversifiers for each other?
To a limited degree. At 0.52 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between FLR and MIR?
The FLR/MIR correlation stands at 0.52 on a 3-year window (1 year: 0.37, 5 years: 0.43), computed from weekly returns as of 2026-08-27.
Is MIR a good diversifier for FLR?
To a limited degree. At 0.52 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.52 mean?
A reading of 0.52 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/flr-vs-mir.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/flr-vs-mir/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FLR correlations · MIR correlations
