MPWR vs VOO: Correlation
How closely do Monolithic Power Systems (MPWR) and Vanguard S&P 500 ETF (VOO) trade together? Their weekly returns over three years give a correlation of 0.67, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MPWR and VOO?
Across a 3-year window, the weekly returns of MPWR and VOO correlate at 0.67, strong. The past 12 months show a weaker link (0.57) than the 3-year average (0.67). Stretching to 5 years gives 0.63, with an annualized covariance of 460.7 %².
Within MPWR's tracked universe of 41 assets, VOO comes in at #12 by 3-year correlation. Correlation aside, the last 12 months split them widely, with MPWR ahead by 31.8 points (+52.4% versus +20.6%). The rolling one-year correlation moved between 0.51 and 0.80 over the past three years, a moderate range. Note the risk asymmetry: MPWR runs 3.3 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.
MPWR vs VOO: side by side
| MPWR (Monolithic Power Systems) | VOO (Vanguard S&P 500 ETF) | |
|---|---|---|
| 1-year return | +52.4% | +20.6% |
| 5-year return | +170.3% | +83.0% |
| Volatility (ann.) | 48.1% | 14.4% |
| Beta vs S&P 500 | 2.22 | 0.99 |
| Max drawdown (3Y) | -51.6% | -18.7% |
| Market cap | $64.4B | – |
| P/E (trailing) | 79.4 | – |
| Dividend yield | 0.55% | 1.07% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $1,686.9B |
| Sector / category | Information Technology | ETF · US Large Cap |
VOO, Vanguard's Large Blend fund, carries $1,686.9B under management, 503 holdings, a 0.03% expense ratio, a 1.07% trailing dividend yield.
Year-by-year returns
| Year | MPWR | VOO |
|---|---|---|
| 2022 | -27.8% | -18.2% |
| 2023 | +79.8% | +26.3% |
| 2024 | -5.6% | +25.0% |
| 2025 | +54.5% | +17.8% |
| 2026 | +45.2% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
MPWR represents 0.11% of VOO's portfolio, so part of any move in VOO is MPWR itself, and the correlation between them is partly mechanical.
Are MPWR and VOO good diversifiers for each other?
To a limited degree. At 0.67 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 MPWR and VOO?
Using weekly returns as of 2026-08-27: 0.67 over 3 years, with 0.57 over the last year and 0.63 over 5 years.
Is VOO a good diversifier for MPWR?
To a limited degree. At 0.67 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 0.67 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
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Related comparisons
Hubs: MPWR correlations · VOO correlations
