STEM vs ZSQR: Correlation
Measured on weekly returns over the past three years, Stem, Inc. (STEM) and Z Squared Inc. (ZSQR) carry a correlation of 0.28, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are STEM and ZSQR?
On 3 years of weekly data the STEM/ZSQR correlation comes out at 0.28, weak. Little has changed lately, as the 1-year reading of 0.27 lands near the 3-year figure. The 5-year figure is 0.22, and annualized covariance runs at 3612.9 %².
Among the 24 assets we track against STEM, ZSQR sits near the bottom by co-movement, at rank #20. Twelve-month performance is nearly a tie, at -64.9% for STEM and -68.2% for ZSQR.
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.
STEM vs ZSQR: side by side
| STEM (Stem, Inc.) | ZSQR (Z Squared Inc.) | |
|---|---|---|
| 1-year return | -64.9% | -68.2% |
| 5-year return | -98.9% | -97.9% |
| Volatility (ann.) | 129.9% | 98.5% |
| Beta vs S&P 500 | 2.49 | 0.28 |
| Max drawdown (3Y) | -95.5% | -89.7% |
| Market cap | $0.1B | $0.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | STEM | ZSQR |
|---|---|---|
| 2022 | -52.9% | -84.7% |
| 2023 | -56.6% | -48.8% |
| 2024 | -84.5% | -64.9% |
| 2025 | +24.8% | +159.1% |
| 2026 | -62.1% | -70.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are STEM and ZSQR good diversifiers for each other?
A fair diversifier. At 0.28, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between STEM and ZSQR?
Using weekly returns as of 2026-08-27: 0.28 over 3 years, with 0.27 over the last year and 0.22 over 5 years.
Is ZSQR a good diversifier for STEM?
A fair diversifier. At 0.28, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.28 mean?
On the −1 to +1 scale, 0.28 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/stem-vs-zsqr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/stem-vs-zsqr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: STEM correlations · ZSQR correlations
