BKE vs SPY: Correlation
Buckle, Inc. (The) (BKE) and SPDR S&P 500 ETF Trust (SPY) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BKE and SPY?
On 3 years of weekly data the BKE/SPY correlation comes out at 0.39, moderate. The relationship has been stable: the 1-year correlation (0.32) sits close to the 3-year figure. The 5-year figure is 0.46, and annualized covariance runs at 177.5 %².
Out of 21 assets tracked against BKE, SPY lands near the bottom at #17. Correlation aside, the last 12 months split them widely, with SPY ahead by 38.5 points (-17.9% versus +20.6%). Note the risk asymmetry: BKE runs 2.1 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.
BKE vs SPY: side by side
| BKE (Buckle, Inc. (The)) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -17.9% | +20.6% |
| 5-year return | +83.6% | +82.4% |
| Volatility (ann.) | 31.1% | 14.5% |
| Beta vs S&P 500 | 0.85 | 1.00 |
| Max drawdown (3Y) | -33.9% | -18.8% |
| Market cap | $2.2B | – |
| P/E (trailing) | 10.2 | – |
| Dividend yield | 1.58% | 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 | BKE | SPY |
|---|---|---|
| 2022 | +10.9% | -18.2% |
| 2023 | +15.0% | +26.2% |
| 2024 | +17.5% | +24.9% |
| 2025 | +14.0% | +17.7% |
| 2026 | -13.2% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BKE and SPY good diversifiers for each other?
Reasonably. At 0.39, BKE and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BKE and SPY?
As of 2026-08-27, the correlation of weekly returns between BKE and SPY is 0.39 over 3 years, 0.32 over 1 year and 0.46 over 5 years.
Is SPY a good diversifier for BKE?
Reasonably. At 0.39, BKE and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 mean?
On the −1 to +1 scale, 0.39 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/bke-vs-spy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bke-vs-spy/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BKE correlations · SPY correlations