ISPC vs WLDS: Correlation
iSpecimen Inc. (ISPC) and Wearable Devices Ltd. (WLDS) show a strong relationship: their 3-year correlation of weekly returns is 0.63.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ISPC and WLDS?
Over the past 3 years, ISPC and WLDS moved with a correlation of 0.63, which is strong. The link has tightened recently: the 1-year correlation (0.82) runs above the 3-year figure (0.63). Over 5 years the correlation is 0.58, and the annualized covariance of weekly returns is 36584.0 %².
Few assets follow ISPC as closely as WLDS, which ranks #1 of 15 tracked partners. Correlation aside, the last 12 months split them widely, with WLDS ahead by 18.1 points (-94.6% versus -76.5%). One caveat on sizing: WLDS is 3.9 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.
ISPC vs WLDS: side by side
| ISPC (iSpecimen Inc.) | WLDS (Wearable Devices Ltd.) | |
|---|---|---|
| 1-year return | -94.6% | -76.5% |
| 5-year return | -100.0% | n/a |
| Volatility (ann.) | 121.8% | 475.5% |
| Beta vs S&P 500 | 0.67 | 3.22 |
| Max drawdown (3Y) | -99.8% | -99.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ISPC | WLDS |
|---|---|---|
| 2022 | -82.4% | – |
| 2023 | -63.6% | -21.1% |
| 2024 | -73.5% | -68.3% |
| 2025 | -90.2% | -86.9% |
| 2026 | -84.6% | -77.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ISPC and WLDS good diversifiers for each other?
To a limited degree. At 0.63 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between ISPC and WLDS?
As of 2026-08-27, the correlation of weekly returns between ISPC and WLDS is 0.63 over 3 years, 0.82 over 1 year and 0.58 over 5 years.
Is WLDS a good diversifier for ISPC?
To a limited degree. At 0.63 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.63 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/ispc-vs-wlds.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ispc-vs-wlds/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ISPC correlations · WLDS correlations
