MPWR vs STX: Correlation
How closely do Monolithic Power Systems (MPWR) and Seagate Technology (STX) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MPWR and STX?
On 3 years of weekly data the MPWR/STX correlation comes out at 0.53, moderate. The relationship has been stable: the 1-year correlation (0.56) sits close to the 3-year figure. The 5-year figure is 0.54, and annualized covariance runs at 1305.7 %².
Among the 41 assets we track against MPWR, STX ranks #28 by 3-year correlation. Correlation aside, the last 12 months split them widely, with STX ahead by 358.4 points (+52.4% versus +410.8%). Stability stands out here, with the rolling one-year correlation confined to 0.45 through 0.64.
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 STX: side by side
| MPWR (Monolithic Power Systems) | STX (Seagate Technology) | |
|---|---|---|
| 1-year return | +52.4% | +410.8% |
| 5-year return | +170.3% | +1032.5% |
| Volatility (ann.) | 48.1% | 51.3% |
| Beta vs S&P 500 | 2.22 | 1.97 |
| Max drawdown (3Y) | -51.6% | -40.0% |
| Market cap | $64.4B | $192.0B |
| P/E (trailing) | 79.4 | 61.0 |
| Dividend yield | 0.55% | 0.35% |
| Sector / category | Information Technology | Information Technology |
Year-by-year returns
| Year | MPWR | STX |
|---|---|---|
| 2022 | -27.8% | -51.4% |
| 2023 | +79.8% | +69.1% |
| 2024 | -5.6% | +4.1% |
| 2025 | +54.5% | +225.3% |
| 2026 | +45.2% | +208.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MPWR and STX good diversifiers for each other?
Only partially. A correlation of 0.53 means MPWR and STX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between MPWR and STX?
The MPWR/STX correlation stands at 0.53 on a 3-year window (1 year: 0.56, 5 years: 0.54), computed from weekly returns as of 2026-08-27.
Is STX a good diversifier for MPWR?
Only partially. A correlation of 0.53 means MPWR and STX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.53 mean?
A reading of 0.53 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/mpwr-vs-stx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mpwr-vs-stx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MPWR correlations · STX correlations
