BTCT vs GCTK: Correlation
Measured on weekly returns over the past three years, BTC Digital Ltd. (BTCT) and GlucoTrack, Inc. (GCTK) carry a correlation of -0.25, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BTCT and GCTK?
Over the past 3 years, BTCT and GCTK moved with a correlation of -0.25, which is negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at 0.03 versus -0.25 over 3 years. Over 5 years the correlation is -0.18, and the annualized covariance of weekly returns is -24493.9 %².
Within BTCT's tracked universe of 52 assets, GCTK comes in at #32 by 3-year correlation. Correlation aside, the last 12 months split them widely, with BTCT ahead by 73.4 points (-20.2% versus -93.6%). Note the risk asymmetry: BTCT runs 3.3 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.
BTCT vs GCTK: side by side
| BTCT (BTC Digital Ltd.) | GCTK (GlucoTrack, Inc.) | |
|---|---|---|
| 1-year return | -20.2% | -93.6% |
| 5-year return | -99.5% | -100.0% |
| Volatility (ann.) | 571.6% | 174.3% |
| Beta vs S&P 500 | -2.21 | 1.74 |
| Max drawdown (3Y) | -97.8% | -100.0% |
| Market cap | – | – |
| P/E (trailing) | – | 0.3 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BTCT | GCTK |
|---|---|---|
| 2022 | -97.6% | -66.2% |
| 2023 | +33.9% | -81.4% |
| 2024 | -0.8% | -71.5% |
| 2025 | -72.8% | -99.1% |
| 2026 | +61.5% | -92.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BTCT and GCTK good diversifiers for each other?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BTCT and GCTK?
As of 2026-08-27, the correlation of weekly returns between BTCT and GCTK is -0.25 over 3 years, 0.03 over 1 year and -0.18 over 5 years.
Is GCTK a good diversifier for BTCT?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.25 mean?
A reading of -0.25 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
$ curl https://www.pairbook.io/api/v1/pairs/btct-vs-gctk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/btct-vs-gctk/)
Free with attribution; caching and terms are described in the API documentation.
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Hubs: BTCT correlations · GCTK correlations
