BST vs QQQM: Correlation
BlackRock Science and Technology Trust (BST) and Invesco Nasdaq 100 ETF (QQQM) show a very strong relationship: their 3-year correlation of weekly returns is 0.86.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BST and QQQM?
On 3 years of weekly data the BST/QQQM correlation comes out at 0.86, very strong, meaning they move nearly in lockstep. Recent behaviour matches the longer record: 0.84 over 1 year against 0.86 over 3. The 5-year figure is 0.87, and annualized covariance runs at 372.9 %².
QQQM is one of the assets that tracks BST most closely: it ranks #2 out of the 25 assets we track against BST. On 12-month performance BST holds a 14.3-point edge, +40.7% against +26.4%.
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.
BST vs QQQM: side by side
| BST (BlackRock Science and Technology Trust) | QQQM (Invesco Nasdaq 100 ETF) | |
|---|---|---|
| 1-year return | +40.7% | +26.4% |
| 5-year return | +46.7% | +96.1% |
| Volatility (ann.) | 22.2% | 19.5% |
| Beta vs S&P 500 | 1.27 | 1.28 |
| Max drawdown (3Y) | -23.4% | -22.7% |
| Market cap | – | – |
| P/E (trailing) | 6.9 | – |
| Dividend yield | 0.00% | 0.46% |
| Expense ratio | – | 0.15% |
| Assets under management | – | $97.1B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQM is a Large Growth fund from Invesco: $97.1B under management, 105 holdings, a 0.15% expense ratio, a 0.46% trailing dividend yield.
Year-by-year returns
| Year | BST | QQQM |
|---|---|---|
| 2022 | -38.3% | -32.5% |
| 2023 | +30.1% | +55.0% |
| 2024 | +18.0% | +25.7% |
| 2025 | +23.7% | +20.9% |
| 2026 | +30.9% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BST and QQQM good diversifiers for each other?
Not really. At 0.86, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between BST and QQQM?
Using weekly returns as of 2026-08-27: 0.86 over 3 years, with 0.84 over the last year and 0.87 over 5 years.
Is QQQM a good diversifier for BST?
Not really. At 0.86, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.86 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.
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Related comparisons
Hubs: BST correlations · QQQM correlations
