BCBP vs SPY: Correlation
Measured on weekly returns over the past three years, BCB Bancorp, Inc. (NJ) (BCBP) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.26, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCBP and SPY?
Over the past 3 years, BCBP and SPY moved with a correlation of 0.26, which is weak. The past 12 months show a weaker link (0.01) than the 3-year average (0.26). Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 123.5 %².
SPY is close to the least connected end of BCBP's tracked universe, ranking #6 of 10. The last year tells two different stories: SPY led by 21.2 percentage points, -0.6% for BCBP against +20.6% for SPY. Note the risk asymmetry: BCBP runs 2.3 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
BCBP vs SPY: side by side
| BCBP (BCB Bancorp, Inc. (NJ)) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -0.6% | +20.6% |
| 5-year return | -25.8% | +82.4% |
| Volatility (ann.) | 33.3% | 14.5% |
| Beta vs S&P 500 | 0.59 | 1.00 |
| Max drawdown (3Y) | -41.2% | -18.8% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 3.70% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | BCBP | SPY |
|---|---|---|
| 2022 | +20.7% | -18.2% |
| 2023 | -24.8% | +26.2% |
| 2024 | -2.5% | +24.9% |
| 2025 | -26.6% | +17.7% |
| 2026 | +9.6% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCBP and SPY good diversifiers for each other?
Reasonably. At 0.26, BCBP and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BCBP and SPY?
As of 2026-08-27, the correlation of weekly returns between BCBP and SPY is 0.26 over 3 years, 0.01 over 1 year and 0.29 over 5 years.
Is SPY a good diversifier for BCBP?
Reasonably. At 0.26, BCBP and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.26 mean?
A reading of 0.26 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/bcbp-vs-spy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bcbp-vs-spy/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BCBP correlations · SPY correlations
