REKR vs STEM: Correlation
Measured on weekly returns over the past three years, Rekor Systems, Inc. (REKR) and Stem, Inc. (STEM) carry a correlation of 0.57, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are REKR and STEM?
On 3 years of weekly data the REKR/STEM correlation comes out at 0.57, moderate. Recent behaviour matches the longer record: 0.51 over 1 year against 0.57 over 3. The 5-year figure is 0.40, and annualized covariance runs at 7018.3 %².
STEM is one of the assets that tracks REKR most closely: it ranks #1 out of the 10 assets we track against REKR. Over the last 12 months REKR came out ahead by 12.7 percentage points (-52.2% against -64.9%).
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.
REKR vs STEM: side by side
| REKR (Rekor Systems, Inc.) | STEM (Stem, Inc.) | |
|---|---|---|
| 1-year return | -52.2% | -64.9% |
| 5-year return | -94.2% | -98.9% |
| Volatility (ann.) | 95.4% | 129.9% |
| Beta vs S&P 500 | 2.31 | 2.49 |
| Max drawdown (3Y) | -86.1% | -95.5% |
| Market cap | $0.1B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | REKR | STEM |
|---|---|---|
| 2022 | -81.7% | -52.9% |
| 2023 | +177.5% | -56.6% |
| 2024 | -53.2% | -84.5% |
| 2025 | -11.5% | +24.8% |
| 2026 | -58.4% | -62.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are REKR and STEM good diversifiers for each other?
Only partially. A correlation of 0.57 means REKR and STEM share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between REKR and STEM?
The REKR/STEM correlation stands at 0.57 on a 3-year window (1 year: 0.51, 5 years: 0.40), computed from weekly returns as of 2026-08-27.
Is STEM a good diversifier for REKR?
Only partially. A correlation of 0.57 means REKR and STEM share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.57 mean?
On the −1 to +1 scale, 0.57 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/rekr-vs-stem.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/rekr-vs-stem/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: REKR correlations · STEM correlations
