ISBA vs TTI: Correlation
How closely do Isabella Bank Corporation (ISBA) and Tetra Technologies, Inc. (TTI) trade together? Their weekly returns over three years give a correlation of 0.25, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ISBA and TTI?
On 3 years of weekly data the ISBA/TTI correlation comes out at 0.25, weak. The relationship has been stable: the 1-year correlation (0.16) sits close to the 3-year figure. The 5-year figure is 0.19, and annualized covariance runs at 496.0 %².
In ISBA's tracked universe of 16 assets, TTI sits right near the top at #3. Their recent paths diverged sharply: over the last 12 months TTI outperformed by 37.3 percentage points (+16.4% for ISBA against +53.7% for TTI). Risk is not evenly split, since TTI carries 1.8 times the volatility of the other side.
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.
ISBA vs TTI: side by side
| ISBA (Isabella Bank Corporation) | TTI (Tetra Technologies, Inc.) | |
|---|---|---|
| 1-year return | +16.4% | +53.7% |
| 5-year return | +104.9% | +123.5% |
| Volatility (ann.) | 33.3% | 59.6% |
| Beta vs S&P 500 | 0.05 | 0.96 |
| Max drawdown (3Y) | -34.1% | -67.4% |
| Market cap | $0.3B | $1.0B |
| P/E (trailing) | 14.2 | 173.2 |
| Dividend yield | 2.91% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ISBA | TTI |
|---|---|---|
| 2022 | -3.5% | +21.8% |
| 2023 | -3.5% | +30.6% |
| 2024 | +27.7% | -20.8% |
| 2025 | +99.1% | +161.7% |
| 2026 | -21.9% | -26.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ISBA and TTI good diversifiers for each other?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ISBA and TTI?
As of 2026-08-27, the correlation of weekly returns between ISBA and TTI is 0.25 over 3 years, 0.16 over 1 year and 0.19 over 5 years.
Is TTI a good diversifier for ISBA?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.25 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/isba-vs-tti.json
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[](https://www.pairbook.io/pair/isba-vs-tti/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ISBA correlations · TTI correlations
