FULC vs STI: Correlation
Measured on weekly returns over the past three years, Fulcrum Therapeutics, Inc. (FULC) and Solidion Technology, Inc. (STI) 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 FULC and STI?
Across a 3-year window, the weekly returns of FULC and STI correlate at -0.25, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.44) than the 3-year average (-0.25). Stretching to 5 years gives -0.19, with an annualized covariance of -10638.1 %².
STI is close to the least connected end of FULC's tracked universe, ranking #9 of 11. Correlation aside, the last 12 months split them widely, with STI ahead by 187.3 points (-41.9% versus +145.4%). Risk is not evenly split, since STI carries 4.9 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.
FULC vs STI: side by side
| FULC (Fulcrum Therapeutics, Inc.) | STI (Solidion Technology, Inc.) | |
|---|---|---|
| 1-year return | -41.9% | +145.4% |
| 5-year return | -86.0% | -98.5% |
| Volatility (ann.) | 92.9% | 458.4% |
| Beta vs S&P 500 | 1.49 | -1.02 |
| Max drawdown (3Y) | -79.1% | -99.5% |
| Market cap | $0.3B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FULC | STI |
|---|---|---|
| 2022 | -58.8% | – |
| 2023 | -7.3% | -24.1% |
| 2024 | -30.4% | -90.9% |
| 2025 | +140.6% | -79.7% |
| 2026 | -66.0% | +9.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FULC and STI good diversifiers for each other?
Yes. With a correlation of -0.25, FULC and STI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between FULC and STI?
As of 2026-08-27, the correlation of weekly returns between FULC and STI is -0.25 over 3 years, -0.44 over 1 year and -0.19 over 5 years.
Is STI a good diversifier for FULC?
Yes. With a correlation of -0.25, FULC and STI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
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/fulc-vs-sti.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fulc-vs-sti/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FULC correlations · STI correlations
