PDEX vs STAG: Correlation
Measured on weekly returns over the past three years, Pro-Dex, Inc. (PDEX) and Stag Industrial, Inc. (STAG) carry a correlation of -0.21, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PDEX and STAG?
On 3 years of weekly data the PDEX/STAG correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.22 lands near the 3-year figure. The 5-year figure is -0.13, and annualized covariance runs at -263.0 %².
Within PDEX's tracked universe of 31 assets, STAG comes in at #20 by 3-year correlation. Correlation aside, the last 12 months split them widely, with PDEX ahead by 38.4 points (+42.5% versus +4.1%). One caveat on sizing: PDEX is 2.9 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
PDEX vs STAG: side by side
| PDEX (Pro-Dex, Inc.) | STAG (Stag Industrial, Inc.) | |
|---|---|---|
| 1-year return | +42.5% | +4.1% |
| 5-year return | +152.4% | +6.2% |
| Volatility (ann.) | 59.6% | 20.8% |
| Beta vs S&P 500 | 0.17 | 0.55 |
| Max drawdown (3Y) | -65.3% | -24.6% |
| Market cap | $0.2B | $7.3B |
| P/E (trailing) | 17.5 | 28.5 |
| Dividend yield | 0.00% | 4.08% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PDEX | STAG |
|---|---|---|
| 2022 | -31.5% | -29.6% |
| 2023 | +10.2% | +26.8% |
| 2024 | +166.8% | -10.3% |
| 2025 | -17.7% | +13.3% |
| 2026 | +68.6% | +3.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PDEX and STAG good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between PDEX and STAG?
As of 2026-08-27, the correlation of weekly returns between PDEX and STAG is -0.21 over 3 years, -0.22 over 1 year and -0.13 over 5 years.
Is STAG a good diversifier for PDEX?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 mean?
A reading of -0.21 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/pdex-vs-stag.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pdex-vs-stag/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PDEX correlations · STAG correlations
