BB vs SPY: Correlation
BlackBerry Limited (BB) and SPDR S&P 500 ETF Trust (SPY) show a moderate relationship: their 3-year correlation of weekly returns is 0.30.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BB and SPY?
Across a 3-year window, the weekly returns of BB and SPY correlate at 0.30, moderate. Recent behaviour matches the longer record: 0.29 over 1 year against 0.30 over 3. Stretching to 5 years gives 0.43, with an annualized covariance of 269.6 %².
Among the 11 assets we track against BB, SPY sits near the bottom by co-movement, at rank #8. Their recent paths diverged sharply: over the last 12 months BB outperformed by 104.1 percentage points (+124.7% for BB against +20.6% for SPY). Note the risk asymmetry: BB runs 4.3 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.
BB vs SPY: side by side
| BB (BlackBerry Limited) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +124.7% | +20.6% |
| 5-year return | -22.8% | +82.4% |
| Volatility (ann.) | 63.0% | 14.5% |
| Beta vs S&P 500 | 1.29 | 1.00 |
| Max drawdown (3Y) | -62.3% | -18.8% |
| Market cap | $5.1B | – |
| P/E (trailing) | 78.6 | – |
| Dividend yield | 0.00% | 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 | BB | SPY |
|---|---|---|
| 2022 | -65.1% | -18.2% |
| 2023 | +8.6% | +26.2% |
| 2024 | +6.8% | +24.9% |
| 2025 | +0.3% | +17.7% |
| 2026 | +128.2% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BB and SPY good diversifiers for each other?
Reasonably. At 0.30, BB and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BB and SPY?
As of 2026-08-27, the correlation of weekly returns between BB and SPY is 0.30 over 3 years, 0.29 over 1 year and 0.43 over 5 years.
Is SPY a good diversifier for BB?
Reasonably. At 0.30, BB and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.30 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/bb-vs-spy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bb-vs-spy/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BB correlations · SPY correlations
