RDCM vs STI: Correlation
How closely do Radcom Ltd. (RDCM) and Solidion Technology, Inc. (STI) trade together? Their weekly returns over three years give a correlation of -0.23, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RDCM and STI?
Over the past 3 years, RDCM and STI moved with a correlation of -0.23, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.42) runs below the 3-year figure (-0.23). Over 5 years the correlation is -0.21, and the annualized covariance of weekly returns is -4605.1 %².
Among the 11 assets we track against RDCM, STI sits near the bottom by co-movement, at rank #10. The last year tells two different stories: STI led by 166.2 percentage points, -20.8% for RDCM against +145.4% for STI. Note the risk asymmetry: STI runs 10.4 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.
RDCM vs STI: side by side
| RDCM (Radcom Ltd.) | STI (Solidion Technology, Inc.) | |
|---|---|---|
| 1-year return | -20.8% | +145.4% |
| 5-year return | -5.4% | -98.5% |
| Volatility (ann.) | 44.0% | 458.4% |
| Beta vs S&P 500 | 0.64 | -1.02 |
| Max drawdown (3Y) | -38.0% | -99.5% |
| Market cap | $0.2B | $0.1B |
| P/E (trailing) | 24.8 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RDCM | STI |
|---|---|---|
| 2022 | -16.2% | – |
| 2023 | -26.3% | -24.1% |
| 2024 | +53.3% | -90.9% |
| 2025 | +5.8% | -79.7% |
| 2026 | -20.4% | +9.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RDCM and STI good diversifiers for each other?
Yes. With a correlation of -0.23, RDCM and STI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between RDCM and STI?
Using weekly returns as of 2026-08-27: -0.23 over 3 years, with -0.42 over the last year and -0.21 over 5 years.
Is STI a good diversifier for RDCM?
Yes. With a correlation of -0.23, RDCM and STI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.23 mean?
On the −1 to +1 scale, -0.23 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/rdcm-vs-sti.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/rdcm-vs-sti/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: RDCM correlations · STI correlations
