GCTS vs REX: Correlation
GCT Semiconductor Holding, Inc. (GCTS) and REX American Resources Corporation (REX) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GCTS and REX?
Across a 3-year window, the weekly returns of GCTS and REX correlate at 0.39, moderate. Lately the two have drifted apart, with the 1-year correlation at -0.14 versus 0.39 over 3 years. Stretching to 5 years gives 0.32, with an annualized covariance of 2554.9 %².
Among the 13 assets we track against GCTS, REX ranks #5 by 3-year correlation. Over the last 12 months GCTS came out ahead by 12.2 percentage points (+46.9% against +34.7%). Note the risk asymmetry: GCTS runs 4.1 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 REX: side by side
| GCTS (GCT Semiconductor Holding, Inc.) | REX (REX American Resources Corporation) | |
|---|---|---|
| 1-year return | +46.9% | +34.7% |
| 5-year return | -80.5% | +190.5% |
| Volatility (ann.) | 165.0% | 40.2% |
| Beta vs S&P 500 | 2.00 | 0.44 |
| Max drawdown (3Y) | -97.7% | -41.6% |
| Market cap | $0.2B | $1.3B |
| P/E (trailing) | – | 15.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GCTS | REX |
|---|---|---|
| 2022 | +2.9% | -0.4% |
| 2023 | +3.6% | +48.5% |
| 2024 | -77.9% | -11.9% |
| 2025 | -48.5% | +55.0% |
| 2026 | +59.2% | +26.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GCTS and REX good diversifiers for each other?
Reasonably. At 0.39, GCTS and REX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between GCTS and REX?
As of 2026-08-27, the correlation of weekly returns between GCTS and REX is 0.39 over 3 years, -0.14 over 1 year and 0.32 over 5 years.
Is REX a good diversifier for GCTS?
Reasonably. At 0.39, GCTS and REX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/gcts-vs-rex.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gcts-vs-rex/)
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Related comparisons
Hubs: GCTS correlations · REX correlations
