JL vs SENS: Correlation
J-Long Group Limited - Class A (JL) and Senseonics Holdings, Inc. (SENS) show a moderate relationship: their 3-year correlation of weekly returns is 0.48.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are JL and SENS?
Across a 3-year window, the weekly returns of JL and SENS correlate at 0.48, moderate. The past 12 months show a weaker link (0.14) than the 3-year average (0.48). Stretching to 5 years gives n/a, with an annualized covariance of 28595.6 %².
Within JL's tracked universe of 58 assets, SENS comes in at #6 by 3-year correlation. The last year tells two different stories: SENS led by 17.5 percentage points, -16.4% for JL against +1.1% for SENS. One caveat on sizing: JL is 5.9 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.
JL vs SENS: side by side
| JL (J-Long Group Limited - Class A) | SENS (Senseonics Holdings, Inc.) | |
|---|---|---|
| 1-year return | -16.4% | +1.1% |
| 5-year return | n/a | -87.7% |
| Volatility (ann.) | 580.0% | 97.8% |
| Beta vs S&P 500 | -1.02 | 1.76 |
| Max drawdown (3Y) | -98.6% | -81.5% |
| Market cap | – | $0.5B |
| P/E (trailing) | 6.5 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | JL | SENS |
|---|---|---|
| 2022 | – | -61.4% |
| 2023 | – | -44.7% |
| 2024 | – | -8.2% |
| 2025 | +67.1% | -47.2% |
| 2026 | -20.1% | +70.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are JL and SENS good diversifiers for each other?
Reasonably. At 0.48, JL and SENS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between JL and SENS?
Using weekly returns as of 2026-08-27: 0.48 over 3 years, with 0.14 over the last year and n/a over 5 years.
Is SENS a good diversifier for JL?
Reasonably. At 0.48, JL and SENS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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/jl-vs-sens.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/jl-vs-sens/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: JL correlations · SENS correlations
