ACWI vs IDXX: Correlation
How closely do iShares MSCI ACWI ETF (ACWI) and Idexx Laboratories (IDXX) trade together? Their weekly returns over three years give a correlation of 0.50, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACWI and IDXX?
Over the past 3 years, ACWI and IDXX moved with a correlation of 0.50, which is moderate. The past 12 months show a weaker link (0.32) than the 3-year average (0.50). Over 5 years the correlation is 0.62, and the annualized covariance of weekly returns is 212.2 %².
By 3-year correlation, IDXX places #93 of the 119 assets tracked against ACWI. Correlation aside, the last 12 months split them widely, with ACWI ahead by 37.6 points (+22.7% versus -14.9%). Across three years, the rolling one-year figure varied moderately, from 0.34 to 0.80. Risk is not evenly split, since IDXX carries 2.2 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.
ACWI vs IDXX: side by side
| ACWI (iShares MSCI ACWI ETF) | IDXX (Idexx Laboratories) | |
|---|---|---|
| 1-year return | +22.7% | -14.9% |
| 5-year return | +69.0% | -20.7% |
| Volatility (ann.) | 13.8% | 30.9% |
| Beta vs S&P 500 | 0.92 | 1.01 |
| Max drawdown (3Y) | -16.5% | -37.4% |
| Market cap | – | $42.9B |
| P/E (trailing) | – | 38.9 |
| Dividend yield | 1.44% | 0.00% |
| Expense ratio | 0.32% | – |
| Assets under management | $32.5B | – |
| Sector / category | ETF · Global | Health Care |
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 | IDXX |
|---|---|---|
| 2022 | -18.4% | -38.0% |
| 2023 | +22.3% | +36.1% |
| 2024 | +17.4% | -25.5% |
| 2025 | +22.4% | +63.6% |
| 2026 | +14.9% | -19.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACWI and IDXX good diversifiers for each other?
To a limited degree. At 0.50 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 ACWI and IDXX?
The ACWI/IDXX correlation stands at 0.50 on a 3-year window (1 year: 0.32, 5 years: 0.62), computed from weekly returns as of 2026-08-27.
Is IDXX a good diversifier for ACWI?
To a limited degree. At 0.50 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 0.50 mean?
A reading of 0.50 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-idxx.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/acwi-vs-idxx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACWI correlations · IDXX correlations
