MX vs POWI: Correlation
Magnachip Semiconductor Corporation (MX) and Power Integrations, Inc. (POWI) show a moderate relationship: their 3-year correlation of weekly returns is 0.52.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MX and POWI?
Across a 3-year window, the weekly returns of MX and POWI correlate at 0.52, moderate. The relationship has been stable: the 1-year correlation (0.61) sits close to the 3-year figure. Stretching to 5 years gives 0.50, with an annualized covariance of 1931.6 %².
Few assets follow MX as closely as POWI, which ranks #2 of 16 tracked partners. Their recent paths diverged sharply: over the last 12 months POWI outperformed by 18.3 percentage points (+2.2% for MX against +20.5% for POWI). One caveat on sizing: MX is 1.7 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.
MX vs POWI: side by side
| MX (Magnachip Semiconductor Corporation) | POWI (Power Integrations, Inc.) | |
|---|---|---|
| 1-year return | +2.2% | +20.5% |
| 5-year return | -81.9% | -46.7% |
| Volatility (ann.) | 79.4% | 46.5% |
| Beta vs S&P 500 | 1.88 | 1.59 |
| Max drawdown (3Y) | -73.5% | -63.6% |
| Market cap | $0.1B | $3.1B |
| P/E (trailing) | – | 125.7 |
| Dividend yield | 0.00% | 1.55% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MX | POWI |
|---|---|---|
| 2022 | -55.2% | -22.1% |
| 2023 | -20.1% | +15.6% |
| 2024 | -46.4% | -24.0% |
| 2025 | -36.6% | -41.3% |
| 2026 | +27.1% | +56.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MX and POWI good diversifiers for each other?
To a limited degree. At 0.52 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 MX and POWI?
The MX/POWI correlation stands at 0.52 on a 3-year window (1 year: 0.61, 5 years: 0.50), computed from weekly returns as of 2026-08-27.
Is POWI a good diversifier for MX?
To a limited degree. At 0.52 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 0.52 mean?
A reading of 0.52 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/mx-vs-powi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/mx-vs-powi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MX correlations · POWI correlations
