CGNX vs SIF: Correlation
Measured on weekly returns over the past three years, Cognex Corporation (CGNX) and SIFCO Industries, Inc. (SIF) carry a correlation of 0.43, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CGNX and SIF?
On 3 years of weekly data the CGNX/SIF correlation comes out at 0.43, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.63 versus 0.43 over 3 years. The 5-year figure is 0.31, and annualized covariance runs at 1490.1 %².
By 3-year correlation, SIF places #8 of the 16 assets tracked against CGNX. Correlation aside, the last 12 months split them widely, with SIF ahead by 189.0 points (+43.2% versus +232.2%). Note the risk asymmetry: SIF runs 1.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
CGNX vs SIF: side by side
| CGNX (Cognex Corporation) | SIF (SIFCO Industries, Inc.) | |
|---|---|---|
| 1-year return | +43.2% | +232.2% |
| 5-year return | -27.4% | +174.7% |
| Volatility (ann.) | 45.5% | 76.9% |
| Beta vs S&P 500 | 1.27 | 0.80 |
| Max drawdown (3Y) | -55.7% | -57.3% |
| Market cap | $10.6B | – |
| P/E (trailing) | 59.4 | 35.5 |
| Dividend yield | 0.54% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CGNX | SIF |
|---|---|---|
| 2022 | -39.1% | -66.8% |
| 2023 | -10.8% | +110.2% |
| 2024 | -13.4% | -21.8% |
| 2025 | +1.2% | +57.2% |
| 2026 | +75.8% | +300.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CGNX and SIF good diversifiers for each other?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CGNX and SIF?
Using weekly returns as of 2026-08-27: 0.43 over 3 years, with 0.63 over the last year and 0.31 over 5 years.
Is SIF a good diversifier for CGNX?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.43 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/cgnx-vs-sif.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cgnx-vs-sif/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CGNX correlations · SIF correlations
