CYCN vs FBLG: Correlation
Measured on weekly returns over the past three years, Cyclerion Therapeutics, Inc. (CYCN) and FibroBiologics, Inc. (FBLG) carry a correlation of -0.21, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CYCN and FBLG?
On 3 years of weekly data the CYCN/FBLG correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.38) than the 3-year average (-0.21). The 5-year figure is n/a, and annualized covariance runs at -6883.5 %².
By 3-year correlation, FBLG places #12 of the 21 assets tracked against CYCN. Their recent paths diverged sharply: over the last 12 months CYCN outperformed by 142.9 percentage points (+55.3% for CYCN against -87.6% for FBLG).
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.
CYCN vs FBLG: side by side
| CYCN (Cyclerion Therapeutics, Inc.) | FBLG (FibroBiologics, Inc.) | |
|---|---|---|
| 1-year return | +55.3% | -87.6% |
| 5-year return | -93.7% | n/a |
| Volatility (ann.) | 208.6% | 150.1% |
| Beta vs S&P 500 | 1.03 | 0.40 |
| Max drawdown (3Y) | -83.0% | -99.9% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CYCN | FBLG |
|---|---|---|
| 2022 | -61.9% | – |
| 2023 | -74.5% | – |
| 2024 | -3.9% | – |
| 2025 | -60.6% | -88.8% |
| 2026 | +214.2% | -66.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CYCN and FBLG good diversifiers for each other?
By historical standards, yes. A correlation of -0.21 means the two rarely move for the same reasons.
FAQ
What is the correlation between CYCN and FBLG?
As of 2026-08-27, the correlation of weekly returns between CYCN and FBLG is -0.21 over 3 years, -0.38 over 1 year and n/a over 5 years.
Is FBLG a good diversifier for CYCN?
By historical standards, yes. A correlation of -0.21 means the two rarely move for the same reasons.
What does a correlation of -0.21 mean?
A reading of -0.21 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: CYCN correlations · FBLG correlations
