KFFB vs NAII: Correlation
Measured on weekly returns over the past three years, Kentucky First Federal Bancorp (KFFB) and Natural Alternatives International, Inc. (NAII) carry a correlation of -0.22, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KFFB and NAII?
Over the past 3 years, KFFB and NAII moved with a correlation of -0.22, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.21) sits close to the 3-year figure. Over 5 years the correlation is -0.12, and the annualized covariance of weekly returns is -364.5 %².
NAII is close to the least connected end of KFFB's tracked universe, ranking #10 of 10. Their recent paths diverged sharply: over the last 12 months KFFB outperformed by 120.7 percentage points (+84.7% for KFFB against -36.0% for NAII).
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.
KFFB vs NAII: side by side
| KFFB (Kentucky First Federal Bancorp) | NAII (Natural Alternatives International, Inc.) | |
|---|---|---|
| 1-year return | +84.7% | -36.0% |
| 5-year return | -6.1% | -85.1% |
| Volatility (ann.) | 34.2% | 49.2% |
| Beta vs S&P 500 | 0.21 | 0.09 |
| Max drawdown (3Y) | -61.6% | -71.7% |
| Market cap | – | – |
| P/E (trailing) | 24.6 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KFFB | NAII |
|---|---|---|
| 2022 | -6.6% | -33.7% |
| 2023 | -28.8% | -22.2% |
| 2024 | -32.7% | -34.0% |
| 2025 | +56.0% | -16.9% |
| 2026 | +27.1% | -36.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KFFB and NAII good diversifiers for each other?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between KFFB and NAII?
As of 2026-08-27, the correlation of weekly returns between KFFB and NAII is -0.22 over 3 years, -0.21 over 1 year and -0.12 over 5 years.
Is NAII a good diversifier for KFFB?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.22 mean?
On the −1 to +1 scale, -0.22 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/kffb-vs-naii.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/kffb-vs-naii/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: KFFB correlations · NAII correlations
