BGI vs EFSI: Correlation
Birks Group Inc. (BGI) and Eagle Financial Services Inc (EFSI) show a moderate relationship: their 3-year correlation of weekly returns is 0.31.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BGI and EFSI?
Across a 3-year window, the weekly returns of BGI and EFSI correlate at 0.31, moderate. Recent behaviour matches the longer record: 0.33 over 1 year against 0.31 over 3. Stretching to 5 years gives 0.22, with an annualized covariance of 396.8 %².
By 3-year correlation, EFSI places #5 of the 10 assets tracked against BGI. The last year tells two different stories: EFSI led by 69.0 percentage points, -51.4% for BGI against +17.6% for EFSI. Risk is not evenly split, since BGI carries 3.2 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.
BGI vs EFSI: side by side
| BGI (Birks Group Inc.) | EFSI (Eagle Financial Services Inc) | |
|---|---|---|
| 1-year return | -51.4% | +17.6% |
| 5-year return | -88.1% | +46.3% |
| Volatility (ann.) | 64.1% | 20.3% |
| Beta vs S&P 500 | 0.38 | 0.30 |
| Max drawdown (3Y) | -93.1% | -21.2% |
| Market cap | – | $0.2B |
| P/E (trailing) | – | 11.8 |
| Dividend yield | 0.00% | 2.97% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BGI | EFSI |
|---|---|---|
| 2022 | +63.5% | +8.0% |
| 2023 | -40.9% | -13.4% |
| 2024 | -65.7% | +26.2% |
| 2025 | -44.1% | +13.4% |
| 2026 | -61.1% | +7.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BGI and EFSI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.31 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between BGI and EFSI?
Using weekly returns as of 2026-08-27: 0.31 over 3 years, with 0.33 over the last year and 0.22 over 5 years.
Is EFSI a good diversifier for BGI?
Yes, to a useful degree: a correlation of 0.31 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.31 mean?
A reading of 0.31 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/bgi-vs-efsi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bgi-vs-efsi/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BGI correlations · EFSI correlations
