OPTU vs STI: Correlation
How closely do Optimum Communications, Inc. (OPTU) and Solidion Technology, Inc. (STI) trade together? Their weekly returns over three years give a correlation of 0.36, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OPTU and STI?
Across a 3-year window, the weekly returns of OPTU and STI correlate at 0.36, moderate. The link has tightened recently: the 1-year correlation (0.51) runs above the 3-year figure (0.36). Stretching to 5 years gives 0.30, with an annualized covariance of 15203.5 %².
Within OPTU's tracked universe of 11 assets, STI comes in at #5 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months STI outperformed by 203.3 percentage points (-57.9% for OPTU against +145.4% for STI). One caveat on sizing: STI is 5.0 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
OPTU vs STI: side by side
| OPTU (Optimum Communications, Inc.) | STI (Solidion Technology, Inc.) | |
|---|---|---|
| 1-year return | -57.9% | +145.4% |
| 5-year return | -96.3% | -98.5% |
| Volatility (ann.) | 91.7% | 458.4% |
| Beta vs S&P 500 | 0.14 | -1.02 |
| Max drawdown (3Y) | -82.5% | -99.5% |
| Market cap | $0.4B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OPTU | STI |
|---|---|---|
| 2022 | -71.6% | – |
| 2023 | -29.3% | -24.1% |
| 2024 | -25.8% | -90.9% |
| 2025 | -31.5% | -79.7% |
| 2026 | -38.2% | +9.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OPTU and STI good diversifiers for each other?
Reasonably. At 0.36, OPTU and STI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between OPTU and STI?
As of 2026-08-27, the correlation of weekly returns between OPTU and STI is 0.36 over 3 years, 0.51 over 1 year and 0.30 over 5 years.
Is STI a good diversifier for OPTU?
Reasonably. At 0.36, OPTU and STI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.36 mean?
A reading of 0.36 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/optu-vs-sti.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/optu-vs-sti/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: OPTU correlations · STI correlations
