QQQ vs SIF: Correlation
Measured on weekly returns over the past three years, Invesco QQQ Trust (QQQ) and SIFCO Industries, Inc. (SIF) carry a correlation of 0.15, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and SIF?
On 3 years of weekly data the QQQ/SIF correlation comes out at 0.15, weak. Lately the two have drifted apart, with the 1-year correlation at 0.04 versus 0.15 over 3 years. The 5-year figure is 0.16, and annualized covariance runs at 224.2 %².
Within QQQ's tracked universe of 4755 assets, SIF comes in at #3394 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months SIF outperformed by 205.9 percentage points (+26.3% for QQQ against +232.2% for SIF). One caveat on sizing: SIF is 3.9 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
QQQ vs SIF: side by side
| QQQ (Invesco QQQ Trust) | SIF (SIFCO Industries, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | +232.2% |
| 5-year return | +95.4% | +174.7% |
| Volatility (ann.) | 19.6% | 76.9% |
| Beta vs S&P 500 | 1.28 | 0.80 |
| Max drawdown (3Y) | -22.8% | -57.3% |
| Market cap | – | – |
| P/E (trailing) | – | 35.5 |
| Dividend yield | 0.44% | 0.00% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
On the fund side, QQQ sits in the Large Growth category at Invesco, with $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | QQQ | SIF |
|---|---|---|
| 2022 | -32.6% | -66.8% |
| 2023 | +54.9% | +110.2% |
| 2024 | +25.6% | -21.8% |
| 2025 | +20.8% | +57.2% |
| 2026 | +17.7% | +300.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and SIF good diversifiers for each other?
Yes. With a correlation of 0.15, QQQ and SIF have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between QQQ and SIF?
As of 2026-08-27, the correlation of weekly returns between QQQ and SIF is 0.15 over 3 years, 0.04 over 1 year and 0.16 over 5 years.
Is SIF a good diversifier for QQQ?
Yes. With a correlation of 0.15, QQQ and SIF have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.15 mean?
A reading of 0.15 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/qqq-vs-sif.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/qqq-vs-sif/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: QQQ correlations · SIF correlations
