NPKI vs TTI: Correlation
Measured on weekly returns over the past three years, NPK International Inc. (NPKI) and Tetra Technologies, Inc. (TTI) carry a correlation of 0.54, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NPKI and TTI?
Over the past 3 years, NPKI and TTI moved with a correlation of 0.54, which is moderate. Little has changed lately, as the 1-year reading of 0.62 lands near the 3-year figure. Over 5 years the correlation is 0.54, and the annualized covariance of weekly returns is 1323.0 %².
Few assets follow NPKI as closely as TTI, which ranks #1 of 15 tracked partners. Their recent paths diverged sharply: over the last 12 months TTI outperformed by 22.1 percentage points (+31.6% for NPKI against +53.7% for TTI).
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.
NPKI vs TTI: side by side
| NPKI (NPK International Inc.) | TTI (Tetra Technologies, Inc.) | |
|---|---|---|
| 1-year return | +31.6% | +53.7% |
| 5-year return | +429.3% | +123.5% |
| Volatility (ann.) | 41.0% | 59.6% |
| Beta vs S&P 500 | 0.88 | 0.96 |
| Max drawdown (3Y) | -42.1% | -67.4% |
| Market cap | $1.2B | $1.0B |
| P/E (trailing) | 28.8 | 173.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NPKI | TTI |
|---|---|---|
| 2022 | +41.2% | +21.8% |
| 2023 | +60.0% | +30.6% |
| 2024 | +15.5% | -20.8% |
| 2025 | +55.4% | +161.7% |
| 2026 | +13.7% | -26.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NPKI and TTI good diversifiers for each other?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between NPKI and TTI?
Using weekly returns as of 2026-08-27: 0.54 over 3 years, with 0.62 over the last year and 0.54 over 5 years.
Is TTI a good diversifier for NPKI?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.54 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.
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Related comparisons
Hubs: NPKI correlations · TTI correlations
