NHI vs TRT: Correlation
How closely do National Health Investors, Inc. (NHI) and Trio-Tech International (TRT) trade together? Their weekly returns over three years give a correlation of -0.29, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NHI and TRT?
Over the past 3 years, NHI and TRT moved with a correlation of -0.29, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.48 versus -0.29 over 3 years. Over 5 years the correlation is -0.18, and the annualized covariance of weekly returns is -651.8 %².
Among the 13 assets we track against NHI, TRT sits near the bottom by co-movement, at rank #13. Correlation aside, the last 12 months split them widely, with TRT ahead by 297.7 points (-2.2% versus +295.5%). One caveat on sizing: TRT is 5.2 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.
NHI vs TRT: side by side
| NHI (National Health Investors, Inc.) | TRT (Trio-Tech International) | |
|---|---|---|
| 1-year return | -2.2% | +295.5% |
| 5-year return | +63.1% | +365.8% |
| Volatility (ann.) | 20.8% | 107.4% |
| Beta vs S&P 500 | 0.22 | 0.18 |
| Max drawdown (3Y) | -24.1% | -54.6% |
| Market cap | $3.6B | – |
| P/E (trailing) | 21.2 | 209.6 |
| Dividend yield | 5.01% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NHI | TRT |
|---|---|---|
| 2022 | -3.3% | -66.5% |
| 2023 | +14.6% | +12.7% |
| 2024 | +30.7% | +14.6% |
| 2025 | +15.7% | +127.9% |
| 2026 | -2.8% | +58.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NHI and TRT good diversifiers for each other?
Yes: at -0.29, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between NHI and TRT?
Using weekly returns as of 2026-08-27: -0.29 over 3 years, with -0.48 over the last year and -0.18 over 5 years.
Is TRT a good diversifier for NHI?
Yes: at -0.29, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.29 mean?
A reading of -0.29 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/nhi-vs-trt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/nhi-vs-trt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: NHI correlations · TRT correlations
