ICCC vs RUN: Correlation
How closely do ImmuCell Corporation (ICCC) and Sunrun Inc. (RUN) trade together? Their weekly returns over three years give a correlation of -0.24, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ICCC and RUN?
Across a 3-year window, the weekly returns of ICCC and RUN correlate at -0.24, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.10 versus -0.24 over 3 years. Stretching to 5 years gives -0.07, with an annualized covariance of -1020.6 %².
RUN is close to the least connected end of ICCC's tracked universe, ranking #10 of 13. Their recent paths diverged sharply: over the last 12 months ICCC outperformed by 107.0 percentage points (+64.3% for ICCC against -42.7% for RUN). Note the risk asymmetry: RUN runs 2.1 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.
ICCC vs RUN: side by side
| ICCC (ImmuCell Corporation) | RUN (Sunrun Inc.) | |
|---|---|---|
| 1-year return | +64.3% | -42.7% |
| 5-year return | +10.8% | -79.7% |
| Volatility (ann.) | 45.2% | 94.7% |
| Beta vs S&P 500 | 0.01 | 1.89 |
| Max drawdown (3Y) | -40.0% | -73.7% |
| Market cap | $0.1B | $2.2B |
| P/E (trailing) | 143.1 | 6.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ICCC | RUN |
|---|---|---|
| 2022 | -23.8% | -30.0% |
| 2023 | -16.6% | -18.3% |
| 2024 | +1.2% | -52.9% |
| 2025 | +19.4% | +98.9% |
| 2026 | +62.9% | -50.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ICCC and RUN good diversifiers for each other?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ICCC and RUN?
As of 2026-08-27, the correlation of weekly returns between ICCC and RUN is -0.24 over 3 years, -0.10 over 1 year and -0.07 over 5 years.
Is RUN a good diversifier for ICCC?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.24 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/iccc-vs-run.json
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Related comparisons
Hubs: ICCC correlations · RUN correlations
