MU vs WDC: Correlation
Measured on weekly returns over the past three years, Micron Technology (MU) and Western Digital (WDC) carry a correlation of 0.65, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MU and WDC?
Over the past 3 years, MU and WDC moved with a correlation of 0.65, which is strong. Little has changed lately, as the 1-year reading of 0.60 lands near the 3-year figure. Over 5 years the correlation is 0.68, and the annualized covariance of weekly returns is 2396.5 %².
By 3-year correlation, WDC places #12 of the 32 assets tracked against MU. Correlation aside, the last 12 months split them widely, with MU ahead by 221.4 points (+695.7% versus +474.3%). On a rolling one-year basis the correlation drifted between 0.58 and 0.83, a moderate band.
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.
MU vs WDC: side by side
| MU (Micron Technology) | WDC (Western Digital) | |
|---|---|---|
| 1-year return | +695.7% | +474.3% |
| 5-year return | +1211.2% | +889.2% |
| Volatility (ann.) | 63.3% | 58.0% |
| Beta vs S&P 500 | 2.47 | 2.15 |
| Max drawdown (3Y) | -57.6% | -49.6% |
| Market cap | – | $166.6B |
| P/E (trailing) | 21.2 | 17.4 |
| Dividend yield | 0.06% | 0.11% |
| Sector / category | Information Technology | Information Technology |
Year-by-year returns
| Year | MU | WDC |
|---|---|---|
| 2022 | -45.9% | -51.6% |
| 2023 | +71.9% | +66.0% |
| 2024 | -1.0% | +13.9% |
| 2025 | +240.2% | +283.7% |
| 2026 | +227.9% | +168.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MU and WDC good diversifiers for each other?
Only partially. A correlation of 0.65 means MU and WDC 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 MU and WDC?
The MU/WDC correlation stands at 0.65 on a 3-year window (1 year: 0.60, 5 years: 0.68), computed from weekly returns as of 2026-08-27.
Is WDC a good diversifier for MU?
Only partially. A correlation of 0.65 means MU and WDC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.65 mean?
A reading of 0.65 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/mu-vs-wdc.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mu-vs-wdc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MU correlations · WDC correlations
