DJCO vs QQQ: Correlation
Measured on weekly returns over the past three years, Daily Journal Corp. (S.C.) (DJCO) and Invesco QQQ Trust (QQQ) carry a correlation of 0.25, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DJCO and QQQ?
On 3 years of weekly data the DJCO/QQQ correlation comes out at 0.25, weak. The past 12 months show a weaker link (0.04) than the 3-year average (0.25). The 5-year figure is 0.28, and annualized covariance runs at 195.1 %².
Out of 11 assets tracked against DJCO, QQQ lands near the bottom at #8. On 12-month performance DJCO holds a 8.8-point edge, +35.1% against +26.3%. Note the risk asymmetry: DJCO runs 2.0 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.
DJCO vs QQQ: side by side
| DJCO (Daily Journal Corp. (S.C.)) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +35.1% | +26.3% |
| 5-year return | +91.2% | +95.4% |
| Volatility (ann.) | 39.6% | 19.6% |
| Beta vs S&P 500 | 0.79 | 1.28 |
| Max drawdown (3Y) | -38.0% | -22.8% |
| Market cap | $0.9B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 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 | DJCO | QQQ |
|---|---|---|
| 2022 | -29.8% | -32.6% |
| 2023 | +36.1% | +54.9% |
| 2024 | +66.7% | +25.6% |
| 2025 | -14.2% | +20.8% |
| 2026 | +29.5% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DJCO and QQQ good diversifiers for each other?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between DJCO and QQQ?
As of 2026-08-27, the correlation of weekly returns between DJCO and QQQ is 0.25 over 3 years, 0.04 over 1 year and 0.28 over 5 years.
Is QQQ a good diversifier for DJCO?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.25 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
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Related comparisons
Hubs: DJCO correlations · QQQ correlations
