SES vs SLDP: Correlation
SES AI Corporation (SES) and Solid Power, Inc. (SLDP) show a moderate relationship: their 3-year correlation of weekly returns is 0.54.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SES and SLDP?
On 3 years of weekly data the SES/SLDP correlation comes out at 0.54, moderate. The past 12 months show a tighter link (0.69) than the 3-year average (0.54). The 5-year figure is 0.48, and annualized covariance runs at 13783.0 %².
By 3-year correlation, SLDP places #18 of the 35 assets tracked against SES. Their 12-month results are close: -51.0% for SES against -46.4% for SLDP. One caveat on sizing: SES is 3.4 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.
SES vs SLDP: side by side
| SES (SES AI Corporation) | SLDP (Solid Power, Inc.) | |
|---|---|---|
| 1-year return | -51.0% | -46.4% |
| 5-year return | -94.5% | -76.1% |
| Volatility (ann.) | 294.5% | 87.4% |
| Beta vs S&P 500 | 2.43 | 1.88 |
| Max drawdown (3Y) | -89.7% | -76.5% |
| Market cap | $0.2B | $0.5B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SES | SLDP |
|---|---|---|
| 2022 | -68.3% | -70.9% |
| 2023 | -41.9% | -42.9% |
| 2024 | +19.7% | +30.3% |
| 2025 | -17.8% | +124.9% |
| 2026 | -69.5% | -44.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SES and SLDP good diversifiers for each other?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between SES and SLDP?
Using weekly returns as of 2026-08-27: 0.54 over 3 years, with 0.69 over the last year and 0.48 over 5 years.
Is SLDP a good diversifier for SES?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.54 mean?
On the −1 to +1 scale, 0.54 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/ses-vs-sldp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ses-vs-sldp/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SES correlations · SLDP correlations
