PDEX vs TVC: Correlation
How closely do Pro-Dex, Inc. (PDEX) and Tennessee Valley Authority (TVC) trade together? Their weekly returns over three years give a correlation of -0.18, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PDEX and TVC?
On 3 years of weekly data the PDEX/TVC correlation comes out at -0.18, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.18) sits close to the 3-year figure. The 5-year figure is -0.04, and annualized covariance runs at -59.9 %².
By 3-year correlation, TVC places #14 of the 31 assets tracked against PDEX. The last year tells two different stories: PDEX led by 39.2 percentage points, +42.5% for PDEX against +3.3% for TVC. One caveat on sizing: PDEX is 10.8 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 TVC: side by side
| PDEX (Pro-Dex, Inc.) | TVC (Tennessee Valley Authority) | |
|---|---|---|
| 1-year return | +42.5% | +3.3% |
| 5-year return | +152.4% | +3.0% |
| Volatility (ann.) | 59.6% | 5.5% |
| Beta vs S&P 500 | 0.17 | 0.06 |
| Max drawdown (3Y) | -65.3% | -5.1% |
| Market cap | $0.2B | – |
| P/E (trailing) | 17.5 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PDEX | TVC |
|---|---|---|
| 2022 | -31.5% | -13.3% |
| 2023 | +10.2% | +6.5% |
| 2024 | +166.8% | -0.5% |
| 2025 | -17.7% | +9.2% |
| 2026 | +68.6% | +1.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PDEX and TVC good diversifiers for each other?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
FAQ
What is the correlation between PDEX and TVC?
As of 2026-08-27, the correlation of weekly returns between PDEX and TVC is -0.18 over 3 years, -0.18 over 1 year and -0.04 over 5 years.
Is TVC a good diversifier for PDEX?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
What does a correlation of -0.18 mean?
A reading of -0.18 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-tvc.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pdex-vs-tvc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PDEX correlations · TVC correlations
