BTCS vs IBB: Correlation
How closely do BTCS Inc. (BTCS) and iShares Biotechnology ETF (IBB) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BTCS and IBB?
On 3 years of weekly data the BTCS/IBB correlation comes out at -0.20, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.30) than the 3-year average (-0.20). The 5-year figure is -0.05, and annualized covariance runs at -665.1 %².
Within BTCS's tracked universe of 20 assets, IBB comes in at #11 by 3-year correlation. Correlation aside, the last 12 months split them widely, with IBB ahead by 117.7 points (-62.3% versus +55.4%). Risk is not evenly split, since BTCS carries 7.8 times the volatility of the other side.
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.
BTCS vs IBB: side by side
| BTCS (BTCS Inc.) | IBB (iShares Biotechnology ETF) | |
|---|---|---|
| 1-year return | -62.3% | +55.4% |
| 5-year return | -79.2% | +26.6% |
| Volatility (ann.) | 161.4% | 20.7% |
| Beta vs S&P 500 | 0.34 | 0.81 |
| Max drawdown (3Y) | -84.9% | -24.9% |
| Market cap | $0.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.22% |
| Expense ratio | – | 0.44% |
| Assets under management | – | $9.2B |
| Sector / category | US Listed | ETF · Thematic |
IBB, iShares's Health fund, carries $9.2B under management, 235 holdings, a 0.44% expense ratio, a 0.22% trailing dividend yield.
Year-by-year returns
| Year | BTCS | IBB |
|---|---|---|
| 2022 | -79.6% | -13.7% |
| 2023 | +158.7% | +3.8% |
| 2024 | +51.5% | -2.4% |
| 2025 | +8.1% | +28.0% |
| 2026 | -39.8% | +27.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BTCS and IBB good diversifiers for each other?
Yes. With a correlation of -0.20, BTCS and IBB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BTCS and IBB?
As of 2026-08-27, the correlation of weekly returns between BTCS and IBB is -0.20 over 3 years, 0.30 over 1 year and -0.05 over 5 years.
Is IBB a good diversifier for BTCS?
Yes. With a correlation of -0.20, BTCS and IBB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.20 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/btcs-vs-ibb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/btcs-vs-ibb/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BTCS correlations · IBB correlations
