BCV vs QQQ: Correlation
How closely do Bancroft Fund, Ltd. (BCV) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.54, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCV and QQQ?
On 3 years of weekly data the BCV/QQQ correlation comes out at 0.54, moderate. The relationship has been stable: the 1-year correlation (0.60) sits close to the 3-year figure. The 5-year figure is 0.62, and annualized covariance runs at 185.0 %².
Within BCV's tracked universe of 20 assets, QQQ comes in at #8 by 3-year correlation. Twelve-month performance is nearly a tie, at +28.3% for BCV and +26.3% for QQQ.
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.
BCV vs QQQ: side by side
| BCV (Bancroft Fund, Ltd.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +28.3% | +26.3% |
| 5-year return | +22.7% | +95.4% |
| Volatility (ann.) | 17.6% | 19.6% |
| Beta vs S&P 500 | 0.68 | 1.28 |
| Max drawdown (3Y) | -14.6% | -22.8% |
| Market cap | $0.1B | – |
| P/E (trailing) | 3.7 | – |
| Dividend yield | 5.42% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | BCV | QQQ |
|---|---|---|
| 2022 | -33.7% | -32.6% |
| 2023 | +5.6% | +54.9% |
| 2024 | +19.8% | +25.6% |
| 2025 | +33.4% | +20.8% |
| 2026 | +16.1% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCV and QQQ good diversifiers for each other?
To a limited degree. At 0.54 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between BCV and QQQ?
As of 2026-08-27, the correlation of weekly returns between BCV and QQQ is 0.54 over 3 years, 0.60 over 1 year and 0.62 over 5 years.
Is QQQ a good diversifier for BCV?
To a limited degree. At 0.54 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.54 mean?
On the −1 to +1 scale, 0.54 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/bcv-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bcv-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BCV correlations · QQQ correlations
