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BLK vs GRMN: Correlation

BlackRock (BLK) and Garmin (GRMN) show a moderate relationship: their 3-year correlation of weekly returns is 0.49.

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

Correlation (3Y)
0.49
moderate
Correlation (1Y)
0.43
last 12 months
Correlation (5Y)
0.52
long-run
Ann. covariance
424.1
%² · weekly, annualized

How correlated are BLK and GRMN?

Across a 3-year window, the weekly returns of BLK and GRMN correlate at 0.49, moderate. Little has changed lately, as the 1-year reading of 0.43 lands near the 3-year figure. Stretching to 5 years gives 0.52, with an annualized covariance of 424.1 %².

Within BLK's tracked universe of 42 assets, GRMN comes in at #28 by 3-year correlation. Correlation aside, the last 12 months split them widely, with GRMN ahead by 19.8 points (+5.3% versus +25.1%). Across three years, the rolling one-year figure varied moderately, from 0.25 to 0.72.

+1.0+0.50-0.5-1.020232026-08-27
One-year correlation, rolled weekly across the last 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.

BLK vs GRMN: side by side

BLK (BlackRock)GRMN (Garmin)
1-year return+5.3%+25.1%
5-year return+38.9%+80.9%
Volatility (ann.)24.7%34.7%
Beta vs S&P 5001.191.06
Max drawdown (3Y)-23.7%-28.0%
Market cap$189.7B$55.9B
P/E (trailing)28.129.9
Dividend yield1.86%1.45%
Sector / categoryFinancialsConsumer Discretionary
Lower P/E: BLK 28.1 vs 29.9Higher yield: BLK 1.86% vs 1.45%Smaller drawdown: BLK -23.7% vs -28.0%Higher 5y return: GRMN +80.9% vs +38.9%
-19%0%+33%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). BLK · GRMN

Year-by-year returns

YearBLKGRMN
2022-20.4%-30.2%
2023+17.9%+43.1%
2024+29.3%+63.3%
2025+6.6%-0.1%
2026+10.3%+44.1%

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

Are BLK and GRMN good diversifiers for each other?

Reasonably. At 0.49, BLK and GRMN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

FAQ

What is the correlation between BLK and GRMN?

Using weekly returns as of 2026-08-27: 0.49 over 3 years, with 0.43 over the last year and 0.52 over 5 years.

Is GRMN a good diversifier for BLK?

Reasonably. At 0.49, BLK and GRMN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

What does a correlation of 0.49 mean?

A reading of 0.49 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/blk-vs-grmn.json

BLK vs GRMN: 3-year weekly correlation 0.49BLK vs GRMN0.49

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Hubs: BLK correlations · GRMN correlations