ACWI vs STX: Correlation
Measured on weekly returns over the past three years, iShares MSCI ACWI ETF (ACWI) and Seagate Technology (STX) carry a correlation of 0.58, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACWI and STX?
On 3 years of weekly data the ACWI/STX correlation comes out at 0.58, moderate. Recent behaviour matches the longer record: 0.54 over 1 year against 0.58 over 3. The 5-year figure is 0.58, and annualized covariance runs at 411.2 %².
By 3-year correlation, STX places #77 of the 119 assets tracked against ACWI. Their recent paths diverged sharply: over the last 12 months STX outperformed by 388.1 percentage points (+22.7% for ACWI against +410.8% for STX). Across three years, the rolling one-year figure varied moderately, from 0.49 to 0.80. One caveat on sizing: STX is 3.7 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.
ACWI vs STX: side by side
| ACWI (iShares MSCI ACWI ETF) | STX (Seagate Technology) | |
|---|---|---|
| 1-year return | +22.7% | +410.8% |
| 5-year return | +69.0% | +1032.5% |
| Volatility (ann.) | 13.8% | 51.3% |
| Beta vs S&P 500 | 0.92 | 1.97 |
| Max drawdown (3Y) | -16.5% | -40.0% |
| Market cap | – | $192.0B |
| P/E (trailing) | – | 61.0 |
| Dividend yield | 1.44% | 0.35% |
| Expense ratio | 0.32% | – |
| Assets under management | $32.5B | – |
| Sector / category | ETF · Global | Information Technology |
On the fund side, ACWI sits in the Global Large-Stock Blend category at iShares, with $32.5B under management, 1590 holdings, a 0.32% expense ratio, a 1.44% trailing dividend yield.
Year-by-year returns
| Year | ACWI | STX |
|---|---|---|
| 2022 | -18.4% | -51.4% |
| 2023 | +22.3% | +69.1% |
| 2024 | +17.4% | +4.1% |
| 2025 | +22.4% | +225.3% |
| 2026 | +14.9% | +208.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
Keep in mind that ACWI holds STX at a 0.18% weight, which makes a slice of this correlation mechanical rather than coincidental.
Are ACWI and STX good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ACWI and STX?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.54 over the last year and 0.58 over 5 years.
Is STX a good diversifier for ACWI?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
On the −1 to +1 scale, 0.58 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/acwi-vs-stx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/acwi-vs-stx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACWI correlations · STX correlations
