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GCTS vs STOK: Correlation

How closely do GCT Semiconductor Holding, Inc. (GCTS) and Stoke Therapeutics, Inc. (STOK) trade together? Their weekly returns over three years give a correlation of 0.59, which is moderate.

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

Correlation (3Y)
0.59
moderate
Correlation (1Y)
0.10
last 12 months
Correlation (5Y)
0.48
long-run
Ann. covariance
9000.6
%² · weekly, annualized

How correlated are GCTS and STOK?

Over the past 3 years, GCTS and STOK moved with a correlation of 0.59, which is moderate. The past 12 months show a weaker link (0.10) than the 3-year average (0.59). Over 5 years the correlation is 0.48, and the annualized covariance of weekly returns is 9000.6 %².

In GCTS's tracked universe of 13 assets, STOK sits right near the top at #3. The last year tells two different stories: STOK led by 22.0 percentage points, +46.9% for GCTS against +68.9% for STOK. One caveat on sizing: GCTS is 1.8 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.

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.

GCTS vs STOK: side by side

GCTS (GCT Semiconductor Holding, Inc.)STOK (Stoke Therapeutics, Inc.)
1-year return+46.9%+68.9%
5-year return-80.5%+23.8%
Volatility (ann.)165.0%93.2%
Beta vs S&P 5002.001.80
Max drawdown (3Y)-97.7%-66.3%
Market cap$0.2B$2.1B
P/E (trailing)
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Smaller drawdown: STOK -66.3% vs -97.7%Higher 5y return: STOK +23.8% vs -80.5%
-25%0%+157%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). GCTS · STOK

Year-by-year returns

YearGCTSSTOK
2022+2.9%-61.5%
2023+3.6%-43.0%
2024-77.9%+109.7%
2025-48.5%+187.8%
2026+59.2%+2.7%

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

Are GCTS and STOK good diversifiers for each other?

Somewhat, no more. With 0.59 correlation, most large moves hit both names, and the diversification benefit stays modest.

FAQ

What is the correlation between GCTS and STOK?

Using weekly returns as of 2026-08-27: 0.59 over 3 years, with 0.10 over the last year and 0.48 over 5 years.

Is STOK a good diversifier for GCTS?

Somewhat, no more. With 0.59 correlation, most large moves hit both names, and the diversification benefit stays modest.

What does a correlation of 0.59 mean?

On the −1 to +1 scale, 0.59 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

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

GCTS vs STOK: 3-year weekly correlation 0.59GCTS vs STOK0.59

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Related comparisons

Hubs: GCTS correlations · STOK correlations