ACIW vs QTWO: Correlation
Measured on weekly returns over the past three years, ACI Worldwide, Inc. (ACIW) and Q2 Holdings, Inc. (QTWO) carry a correlation of 0.59, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACIW and QTWO?
Across a 3-year window, the weekly returns of ACIW and QTWO correlate at 0.59, moderate. Recent behaviour matches the longer record: 0.65 over 1 year against 0.59 over 3. Stretching to 5 years gives 0.52, with an annualized covariance of 879.0 %².
In ACIW's tracked universe of 20 assets, QTWO sits right near the top at #2. Correlation aside, the last 12 months split them widely, with ACIW ahead by 27.8 points (+11.8% versus -16.0%).
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.
ACIW vs QTWO: side by side
| ACIW (ACI Worldwide, Inc.) | QTWO (Q2 Holdings, Inc.) | |
|---|---|---|
| 1-year return | +11.8% | -16.0% |
| 5-year return | +69.0% | -24.7% |
| Volatility (ann.) | 35.3% | 41.9% |
| Beta vs S&P 500 | 1.07 | 1.41 |
| Max drawdown (3Y) | -35.0% | -62.0% |
| Market cap | $5.5B | $4.1B |
| P/E (trailing) | 24.3 | 45.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACIW | QTWO |
|---|---|---|
| 2022 | -33.7% | -66.2% |
| 2023 | +33.0% | +61.6% |
| 2024 | +69.6% | +131.9% |
| 2025 | -7.9% | -28.3% |
| 2026 | +13.4% | -9.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACIW and QTWO good diversifiers for each other?
To a limited degree. At 0.59 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 ACIW and QTWO?
Using weekly returns as of 2026-08-27: 0.59 over 3 years, with 0.65 over the last year and 0.52 over 5 years.
Is QTWO a good diversifier for ACIW?
To a limited degree. At 0.59 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 0.59 mean?
A reading of 0.59 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/aciw-vs-qtwo.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/aciw-vs-qtwo/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACIW correlations · QTWO correlations
