ACWI vs GNSS: Correlation
How closely do iShares MSCI ACWI ETF (ACWI) and Genasys Inc. (GNSS) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACWI and GNSS?
Across a 3-year window, the weekly returns of ACWI and GNSS correlate at 0.39, moderate. Little has changed lately, as the 1-year reading of 0.47 lands near the 3-year figure. Stretching to 5 years gives 0.35, with an annualized covariance of 328.8 %².
By 3-year correlation, GNSS places #105 of the 119 assets tracked against ACWI. The last year tells two different stories: ACWI led by 42.0 percentage points, +22.7% for ACWI against -19.3% for GNSS. Note the risk asymmetry: GNSS runs 4.5 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.
ACWI vs GNSS: side by side
| ACWI (iShares MSCI ACWI ETF) | GNSS (Genasys Inc.) | |
|---|---|---|
| 1-year return | +22.7% | -19.3% |
| 5-year return | +69.0% | -71.2% |
| Volatility (ann.) | 13.8% | 61.5% |
| Beta vs S&P 500 | 0.92 | 1.53 |
| Max drawdown (3Y) | -16.5% | -63.2% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 1.44% | 0.00% |
| Expense ratio | 0.32% | – |
| Assets under management | $32.5B | – |
| Sector / category | ETF · Global | US Listed |
ACWI is a Global Large-Stock Blend fund from iShares: $32.5B under management, 1590 holdings, a 0.32% expense ratio, a 1.44% trailing dividend yield.
Year-by-year returns
| Year | ACWI | GNSS |
|---|---|---|
| 2022 | -18.4% | -7.0% |
| 2023 | +22.3% | -45.1% |
| 2024 | +17.4% | +28.1% |
| 2025 | +22.4% | -17.3% |
| 2026 | +14.9% | -27.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACWI and GNSS good diversifiers for each other?
A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ACWI and GNSS?
The ACWI/GNSS correlation stands at 0.39 on a 3-year window (1 year: 0.47, 5 years: 0.35), computed from weekly returns as of 2026-08-27.
Is GNSS a good diversifier for ACWI?
A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.39 mean?
A reading of 0.39 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/acwi-vs-gnss.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/acwi-vs-gnss/)
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Related comparisons
Hubs: ACWI correlations · GNSS correlations
