CTS vs IEX: Correlation
How closely do CTS Corporation (CTS) and IDEX Corporation (IEX) trade together? Their weekly returns over three years give a correlation of 0.67, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTS and IEX?
On 3 years of weekly data the CTS/IEX correlation comes out at 0.67, strong. Recent behaviour matches the longer record: 0.63 over 1 year against 0.67 over 3. The 5-year figure is 0.56, and annualized covariance runs at 519.2 %².
Among the 26 assets we track against CTS, IEX ranks #8 by 3-year correlation. On 12-month performance IEX holds a 7.2-point edge, +35.8% against +43.0%.
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.
CTS vs IEX: side by side
| CTS (CTS Corporation) | IEX (IDEX Corporation) | |
|---|---|---|
| 1-year return | +35.8% | +43.0% |
| 5-year return | +63.4% | +10.5% |
| Volatility (ann.) | 33.0% | 23.3% |
| Beta vs S&P 500 | 1.40 | 0.89 |
| Max drawdown (3Y) | -40.6% | -34.6% |
| Market cap | $1.6B | $17.2B |
| P/E (trailing) | 23.8 | 33.8 |
| Dividend yield | 0.28% | 1.23% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | CTS | IEX |
|---|---|---|
| 2022 | +7.8% | -2.2% |
| 2023 | +11.4% | -3.8% |
| 2024 | +20.9% | -2.4% |
| 2025 | -18.4% | -13.7% |
| 2026 | +34.7% | +32.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTS and IEX good diversifiers for each other?
Somewhat, no more. With 0.67 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between CTS and IEX?
As of 2026-08-27, the correlation of weekly returns between CTS and IEX is 0.67 over 3 years, 0.63 over 1 year and 0.56 over 5 years.
Is IEX a good diversifier for CTS?
Somewhat, no more. With 0.67 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.67 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/cts-vs-iex.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cts-vs-iex/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CTS correlations · IEX correlations
