PairBook
HomeQQQ › QQQ vs SIGA

QQQ vs SIGA: Correlation

Invesco QQQ Trust (QQQ) and SIGA Technologies Inc. (SIGA) show a weak relationship: their 3-year correlation of weekly returns is 0.25.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.25
weak
Correlation (1Y)
0.38
last 12 months
Correlation (5Y)
0.23
long-run
Ann. covariance
311.4
%² · weekly, annualized

How correlated are QQQ and SIGA?

Across a 3-year window, the weekly returns of QQQ and SIGA correlate at 0.25, weak. The link has tightened recently: the 1-year correlation (0.38) runs above the 3-year figure (0.25). Stretching to 5 years gives 0.23, with an annualized covariance of 311.4 %².

Among the 4755 assets we track against QQQ, SIGA ranks #2166 by 3-year correlation. The last year tells two different stories: QQQ led by 84.4 percentage points, +26.3% for QQQ against -58.1% for SIGA. Risk is not evenly split, since SIGA carries 3.3 times the volatility of the other side.

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 SIGA: side by side

QQQ (Invesco QQQ Trust)SIGA (SIGA Technologies Inc.)
1-year return+26.3%-58.1%
5-year return+95.4%-27.3%
Volatility (ann.)19.6%64.1%
Beta vs S&P 5001.281.22
Max drawdown (3Y)-22.8%-70.1%
Market cap$0.2B
P/E (trailing)
Dividend yield0.44%0.00%
Expense ratio0.18%
Assets under management$452.8B
Sector / categoryETF · US Growth & TechUS Listed
Higher yield: QQQ 0.44% vs 0.00%Smaller drawdown: QQQ -22.8% vs -70.1%Higher 5y return: QQQ +95.4% vs -27.3%

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.

-60%0%+29%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. QQQ · SIGA

Year-by-year returns

YearQQQSIGA
2022-32.6%+4.2%
2023+54.9%-17.6%
2024+25.6%+15.2%
2025+20.8%+12.3%
2026+17.7%-43.4%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are QQQ and SIGA 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 QQQ and SIGA?

Using weekly returns as of 2026-08-27: 0.25 over 3 years, with 0.38 over the last year and 0.23 over 5 years.

Is SIGA a good diversifier for QQQ?

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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/qqq-vs-siga.json

QQQ vs SIGA: 3-year weekly correlation 0.25QQQ vs SIGA0.25

Embed this badge (it refreshes with the data), with attribution:

[![QQQ vs SIGA correlation](https://www.pairbook.io/api/v1/badge/qqq-vs-siga.svg)](https://www.pairbook.io/pair/qqq-vs-siga/)

The core API is free. Terms and every endpoint in the API documentation.

Related comparisons

Hubs: QQQ correlations · SIGA correlations