OTTR vs RBB: Correlation
How closely do Otter Tail Corporation (OTTR) and RBB Bancorp (RBB) trade together? Their weekly returns over three years give a correlation of 0.55, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OTTR and RBB?
On 3 years of weekly data the OTTR/RBB correlation comes out at 0.55, moderate. The past 12 months show a weaker link (0.36) than the 3-year average (0.55). The 5-year figure is 0.33, and annualized covariance runs at 476.9 %².
RBB is one of the assets that tracks OTTR most closely: it ranks #1 out of the 10 assets we track against OTTR. The last year tells two different stories: RBB led by 21.1 percentage points, +10.7% for OTTR against +31.8% for RBB.
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.
OTTR vs RBB: side by side
| OTTR (Otter Tail Corporation) | RBB (RBB Bancorp) | |
|---|---|---|
| 1-year return | +10.7% | +31.8% |
| 5-year return | +88.2% | +22.2% |
| Volatility (ann.) | 26.7% | 32.4% |
| Beta vs S&P 500 | 0.57 | 0.96 |
| Max drawdown (3Y) | -27.1% | -39.2% |
| Market cap | $3.8B | $0.4B |
| P/E (trailing) | 19.9 | 10.8 |
| Dividend yield | 2.39% | 2.43% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OTTR | RBB |
|---|---|---|
| 2022 | -15.6% | -18.5% |
| 2023 | +48.1% | -4.4% |
| 2024 | -11.2% | +11.0% |
| 2025 | +12.3% | +4.4% |
| 2026 | +15.7% | +29.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OTTR and RBB good diversifiers for each other?
To a limited degree. At 0.55 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between OTTR and RBB?
Using weekly returns as of 2026-08-27: 0.55 over 3 years, with 0.36 over the last year and 0.33 over 5 years.
Is RBB a good diversifier for OTTR?
To a limited degree. At 0.55 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.55 mean?
A reading of 0.55 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/ottr-vs-rbb.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ottr-vs-rbb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: OTTR correlations · RBB correlations
