TDG vs VSEC: Correlation
TransDigm Group (TDG) and VSE Corporation (VSEC) show a moderate relationship: their 3-year correlation of weekly returns is 0.51.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are TDG and VSEC?
Over the past 3 years, TDG and VSEC moved with a correlation of 0.51, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.74 versus 0.51 over 3 years. Over 5 years the correlation is 0.50, and the annualized covariance of weekly returns is 582.3 %².
By 3-year correlation, VSEC places #11 of the 31 assets tracked against TDG. The last year tells two different stories: VSEC led by 43.3 percentage points, -9.1% for TDG against +34.2% for VSEC. Note the risk asymmetry: VSEC runs 1.8 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.
TDG vs VSEC: side by side
| TDG (TransDigm Group) | VSEC (VSE Corporation) | |
|---|---|---|
| 1-year return | -9.1% | +34.2% |
| 5-year return | +136.5% | +365.5% |
| Volatility (ann.) | 25.5% | 44.9% |
| Beta vs S&P 500 | 0.91 | 1.52 |
| Max drawdown (3Y) | -25.3% | -30.3% |
| Market cap | $65.6B | $6.2B |
| P/E (trailing) | 36.6 | 72.5 |
| Dividend yield | 0.00% | 0.18% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | TDG | VSEC |
|---|---|---|
| 2022 | +1.8% | -22.4% |
| 2023 | +66.6% | +38.9% |
| 2024 | +32.3% | +47.9% |
| 2025 | +12.2% | +82.3% |
| 2026 | -10.8% | +28.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are TDG and VSEC good diversifiers for each other?
To a limited degree. At 0.51 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 TDG and VSEC?
Using weekly returns as of 2026-08-27: 0.51 over 3 years, with 0.74 over the last year and 0.50 over 5 years.
Is VSEC a good diversifier for TDG?
To a limited degree. At 0.51 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 0.51 mean?
On the −1 to +1 scale, 0.51 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/tdg-vs-vsec.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/tdg-vs-vsec/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: TDG correlations · VSEC correlations
