ACIW vs VXZ: Correlation
How closely do ACI Worldwide, Inc. (ACIW) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) trade together? Their weekly returns over three years give a correlation of -0.45, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACIW and VXZ?
Across a 3-year window, the weekly returns of ACIW and VXZ correlate at -0.45, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.28 versus -0.45 over 3 years. Stretching to 5 years gives -0.42, with an annualized covariance of -403.8 %².
Among the 20 assets we track against ACIW, VXZ sits near the bottom by co-movement, at rank #20. Their recent paths diverged sharply: over the last 12 months ACIW outperformed by 27.9 percentage points (+11.8% for ACIW against -16.1% for VXZ).
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 VXZ: side by side
| ACIW (ACI Worldwide, Inc.) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | +11.8% | -16.1% |
| 5-year return | +69.0% | -53.1% |
| Volatility (ann.) | 35.3% | 25.6% |
| Beta vs S&P 500 | 1.07 | -1.31 |
| Max drawdown (3Y) | -35.0% | -36.4% |
| Market cap | $5.5B | – |
| P/E (trailing) | 24.3 | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACIW | VXZ |
|---|---|---|
| 2022 | -33.7% | +0.5% |
| 2023 | +33.0% | -44.0% |
| 2024 | +69.6% | -12.7% |
| 2025 | -7.9% | +5.7% |
| 2026 | +13.4% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACIW and VXZ good diversifiers for each other?
By historical standards, yes. A correlation of -0.45 means the two rarely move for the same reasons.
FAQ
What is the correlation between ACIW and VXZ?
The ACIW/VXZ correlation stands at -0.45 on a 3-year window (1 year: -0.28, 5 years: -0.42), computed from weekly returns as of 2026-08-27.
Is VXZ a good diversifier for ACIW?
By historical standards, yes. A correlation of -0.45 means the two rarely move for the same reasons.
What does a correlation of -0.45 mean?
On the −1 to +1 scale, -0.45 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/aciw-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aciw-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACIW correlations · VXZ correlations
