FXNC vs NBBK: Correlation
How closely do First National Corporation (FXNC) and NB Bancorp, Inc. (NBBK) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FXNC and NBBK?
On 3 years of weekly data the FXNC/NBBK correlation comes out at 0.53, moderate. The past 12 months show a tighter link (0.71) than the 3-year average (0.53). The 5-year figure is n/a, and annualized covariance runs at 398.8 %².
In FXNC's tracked universe of 13 assets, NBBK sits right near the top at #2. Their recent paths diverged sharply: over the last 12 months FXNC outperformed by 16.6 percentage points (+35.9% for FXNC against +19.3% for NBBK).
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.
FXNC vs NBBK: side by side
| FXNC (First National Corporation) | NBBK (NB Bancorp, Inc.) | |
|---|---|---|
| 1-year return | +35.9% | +19.3% |
| 5-year return | +71.2% | n/a |
| Volatility (ann.) | 27.4% | 27.6% |
| Beta vs S&P 500 | 0.50 | 0.84 |
| Max drawdown (3Y) | -31.6% | -24.7% |
| Market cap | $0.3B | $1.0B |
| P/E (trailing) | 12.9 | 14.7 |
| Dividend yield | 2.15% | 4.39% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FXNC | NBBK |
|---|---|---|
| 2022 | -23.3% | – |
| 2023 | +31.5% | – |
| 2024 | +9.3% | +34.3% |
| 2025 | +12.7% | +10.6% |
| 2026 | +24.6% | +13.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FXNC and NBBK good diversifiers for each other?
To a limited degree. At 0.53 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 FXNC and NBBK?
As of 2026-08-27, the correlation of weekly returns between FXNC and NBBK is 0.53 over 3 years, 0.71 over 1 year and n/a over 5 years.
Is NBBK a good diversifier for FXNC?
To a limited degree. At 0.53 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 0.53 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/fxnc-vs-nbbk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/fxnc-vs-nbbk/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FXNC correlations · NBBK correlations
