KFFB vs RTB: Correlation
How closely do Kentucky First Federal Bancorp (KFFB) and RTB Digital, Inc. (RTB) trade together? Their weekly returns over three years give a correlation of 0.28, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KFFB and RTB?
On 3 years of weekly data the KFFB/RTB correlation comes out at 0.28, weak. Recent behaviour matches the longer record: 0.24 over 1 year against 0.28 over 3. The 5-year figure is 0.15, and annualized covariance runs at 1424.6 %².
In KFFB's tracked universe of 10 assets, RTB sits right near the top at #3. The last year tells two different stories: KFFB led by 69.2 percentage points, +84.7% for KFFB against +15.5% for RTB. One caveat on sizing: RTB is 4.4 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.
KFFB vs RTB: side by side
| KFFB (Kentucky First Federal Bancorp) | RTB (RTB Digital, Inc.) | |
|---|---|---|
| 1-year return | +84.7% | +15.5% |
| 5-year return | -6.1% | -99.6% |
| Volatility (ann.) | 34.2% | 150.2% |
| Beta vs S&P 500 | 0.21 | 2.93 |
| Max drawdown (3Y) | -61.6% | -99.2% |
| Market cap | – | $0.2B |
| P/E (trailing) | 24.6 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KFFB | RTB |
|---|---|---|
| 2022 | -6.6% | -89.0% |
| 2023 | -28.8% | -9.6% |
| 2024 | -32.7% | -68.8% |
| 2025 | +56.0% | -87.7% |
| 2026 | +27.1% | +131.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KFFB and RTB good diversifiers for each other?
Reasonably. At 0.28, KFFB and RTB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between KFFB and RTB?
As of 2026-08-27, the correlation of weekly returns between KFFB and RTB is 0.28 over 3 years, 0.24 over 1 year and 0.15 over 5 years.
Is RTB a good diversifier for KFFB?
Reasonably. At 0.28, KFFB and RTB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.28 mean?
A reading of 0.28 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/kffb-vs-rtb.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/kffb-vs-rtb/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: KFFB correlations · RTB correlations
