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MU vs STX: Correlation

How closely do Micron Technology (MU) and Seagate Technology (STX) trade together? Their weekly returns over three years give a correlation of 0.61, which is strong.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.61
strong
Correlation (1Y)
0.59
last 12 months
Correlation (5Y)
0.62
long-run
Ann. covariance
1975.0
%² · weekly, annualized

How correlated are MU and STX?

Across a 3-year window, the weekly returns of MU and STX correlate at 0.61, strong. Little has changed lately, as the 1-year reading of 0.59 lands near the 3-year figure. Stretching to 5 years gives 0.62, with an annualized covariance of 1975.0 %².

Among the 32 assets we track against MU, STX ranks #16 by 3-year correlation. The last year tells two different stories: MU led by 284.9 percentage points, +695.7% for MU against +410.8% for STX. The rolling one-year correlation stayed in a tight band between 0.49 and 0.72 over the past three years, which points to a structural rather than episodic relationship.

+1.0+0.50-0.5-1.020232026-08-27
Rolling one-year correlation of weekly returns over the past three years.
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 STX: side by side

MU (Micron Technology)STX (Seagate Technology)
1-year return+695.7%+410.8%
5-year return+1211.2%+1032.5%
Volatility (ann.)63.3%51.3%
Beta vs S&P 5002.471.97
Max drawdown (3Y)-57.6%-40.0%
Market cap$192.0B
P/E (trailing)21.261.0
Dividend yield0.06%0.35%
Sector / categoryInformation TechnologyInformation Technology
Lower P/E: MU 21.2 vs 61.0Higher yield: STX 0.35% vs 0.06%Smaller drawdown: STX -40.0% vs -57.6%Higher 5y return: MU +1211.2% vs +1032.5%
0%+764%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). MU · STX

Year-by-year returns

YearMUSTX
2022-45.9%-51.4%
2023+71.9%+69.1%
2024-1.0%+4.1%
2025+240.2%+225.3%
2026+227.9%+208.4%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are MU and STX good diversifiers for each other?

Only partially. A correlation of 0.61 means MU 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 MU and STX?

As of 2026-08-27, the correlation of weekly returns between MU and STX is 0.61 over 3 years, 0.59 over 1 year and 0.62 over 5 years.

Is STX a good diversifier for MU?

Only partially. A correlation of 0.61 means MU 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 0.61 mean?

On the −1 to +1 scale, 0.61 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.

Use this data

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$ curl https://www.pairbook.io/api/v1/pairs/mu-vs-stx.json

MU vs STX: 3-year weekly correlation 0.61MU vs STX0.61

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Related comparisons

Hubs: MU correlations · STX correlations