GCTS vs IBIO: Correlation
Measured on weekly returns over the past three years, GCT Semiconductor Holding, Inc. (GCTS) and iBio, Inc. (IBIO) carry a correlation of 0.68, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GCTS and IBIO?
On 3 years of weekly data the GCTS/IBIO correlation comes out at 0.68, strong. The link has loosened recently: the 1-year correlation (0.19) runs below the 3-year figure (0.68). The 5-year figure is 0.59, and annualized covariance runs at 22079.9 %².
Few assets follow GCTS as closely as IBIO, which ranks #2 of 13 tracked partners. Correlation aside, the last 12 months split them widely, with IBIO ahead by 25.9 points (+46.9% versus +72.8%).
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 IBIO: side by side
| GCTS (GCT Semiconductor Holding, Inc.) | IBIO (iBio, Inc.) | |
|---|---|---|
| 1-year return | +46.9% | +72.8% |
| 5-year return | -80.5% | -99.8% |
| Volatility (ann.) | 165.0% | 196.4% |
| Beta vs S&P 500 | 2.00 | 1.36 |
| Max drawdown (3Y) | -97.7% | -92.9% |
| Market cap | $0.2B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GCTS | IBIO |
|---|---|---|
| 2022 | +2.9% | -96.8% |
| 2023 | +3.6% | -84.4% |
| 2024 | -77.9% | +78.8% |
| 2025 | -48.5% | -21.2% |
| 2026 | +59.2% | -27.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GCTS and IBIO good diversifiers for each other?
Somewhat, no more. With 0.68 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between GCTS and IBIO?
As of 2026-08-27, the correlation of weekly returns between GCTS and IBIO is 0.68 over 3 years, 0.19 over 1 year and 0.59 over 5 years.
Is IBIO a good diversifier for GCTS?
Somewhat, no more. With 0.68 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.68 mean?
On the −1 to +1 scale, 0.68 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
$ curl https://www.pairbook.io/api/v1/pairs/gcts-vs-ibio.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/gcts-vs-ibio/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: GCTS correlations · IBIO correlations
