AME vs IEX: Correlation
Measured on weekly returns over the past three years, Ametek (AME) and IDEX Corporation (IEX) carry a correlation of 0.61, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AME and IEX?
Across a 3-year window, the weekly returns of AME and IEX correlate at 0.61, strong. Recent behaviour matches the longer record: 0.62 over 1 year against 0.61 over 3. Stretching to 5 years gives 0.70, with an annualized covariance of 291.7 %².
By 3-year correlation, IEX places #13 of the 31 assets tracked against AME. Over the last 12 months IEX came out ahead by 11.6 percentage points (+31.4% against +43.0%). The rolling one-year correlation moved between 0.46 and 0.79 over the past three years, a moderate range.
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.
AME vs IEX: side by side
| AME (Ametek) | IEX (IDEX Corporation) | |
|---|---|---|
| 1-year return | +31.4% | +43.0% |
| 5-year return | +83.6% | +10.5% |
| Volatility (ann.) | 20.4% | 23.3% |
| Beta vs S&P 500 | 0.84 | 0.89 |
| Max drawdown (3Y) | -23.0% | -34.6% |
| Market cap | $55.9B | $17.2B |
| P/E (trailing) | 35.8 | 33.8 |
| Dividend yield | 0.53% | 1.23% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | AME | IEX |
|---|---|---|
| 2022 | -4.3% | -2.2% |
| 2023 | +18.8% | -3.8% |
| 2024 | +10.0% | -2.4% |
| 2025 | +14.7% | -13.7% |
| 2026 | +19.1% | +32.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AME and IEX good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between AME and IEX?
Using weekly returns as of 2026-08-27: 0.61 over 3 years, with 0.62 over the last year and 0.70 over 5 years.
Is IEX a good diversifier for AME?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ame-vs-iex.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ame-vs-iex/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AME correlations · IEX correlations
