MRAM vs SOTK: Correlation
Measured on weekly returns over the past three years, Everspin Technologies, Inc. (MRAM) and Sono-Tek Corporation (SOTK) carry a correlation of 0.29, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MRAM and SOTK?
Across a 3-year window, the weekly returns of MRAM and SOTK correlate at 0.29, weak. Recent behaviour matches the longer record: 0.34 over 1 year against 0.29 over 3. Stretching to 5 years gives 0.11, with an annualized covariance of 680.0 %².
Among the 22 assets we track against MRAM, SOTK sits near the bottom by co-movement, at rank #18. The last year tells two different stories: MRAM led by 123.1 percentage points, +173.2% for MRAM against +50.1% for SOTK. Risk is not evenly split, since MRAM carries 2.1 times the volatility of the other side.
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.
MRAM vs SOTK: side by side
| MRAM (Everspin Technologies, Inc.) | SOTK (Sono-Tek Corporation) | |
|---|---|---|
| 1-year return | +173.2% | +50.1% |
| 5-year return | +134.7% | +46.2% |
| Volatility (ann.) | 69.5% | 33.8% |
| Beta vs S&P 500 | 1.58 | 0.46 |
| Max drawdown (3Y) | -70.6% | -46.5% |
| Market cap | $0.4B | $0.1B |
| P/E (trailing) | – | 38.7 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MRAM | SOTK |
|---|---|---|
| 2022 | -50.8% | -13.6% |
| 2023 | +62.6% | -15.7% |
| 2024 | -29.3% | -25.9% |
| 2025 | +45.2% | +3.0% |
| 2026 | +88.1% | +21.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MRAM and SOTK good diversifiers for each other?
A fair diversifier. At 0.29, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between MRAM and SOTK?
Using weekly returns as of 2026-08-27: 0.29 over 3 years, with 0.34 over the last year and 0.11 over 5 years.
Is SOTK a good diversifier for MRAM?
A fair diversifier. At 0.29, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.29 mean?
On the −1 to +1 scale, 0.29 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/mram-vs-sotk.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mram-vs-sotk/)
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Related comparisons
Hubs: MRAM correlations · SOTK correlations
