AMPG vs JL: Correlation
How closely do Amplitech Group, Inc. (AMPG) and J-Long Group Limited - Class A (JL) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMPG and JL?
Over the past 3 years, AMPG and JL moved with a correlation of 0.53, which is moderate. Lately the two have drifted apart, with the 1-year correlation at -0.05 versus 0.53 over 3 years. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 58463.1 %².
Within AMPG's tracked universe of 15 assets, JL comes in at #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with AMPG ahead by 38.6 points (+22.2% versus -16.4%). One caveat on sizing: JL is 3.2 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.
AMPG vs JL: side by side
| AMPG (Amplitech Group, Inc.) | JL (J-Long Group Limited - Class A) | |
|---|---|---|
| 1-year return | +22.2% | -16.4% |
| 5-year return | -0.5% | n/a |
| Volatility (ann.) | 178.6% | 580.0% |
| Beta vs S&P 500 | 1.10 | -1.02 |
| Max drawdown (3Y) | -78.6% | -98.6% |
| Market cap | $0.1B | – |
| P/E (trailing) | – | 6.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AMPG | JL |
|---|---|---|
| 2022 | -46.2% | – |
| 2023 | -11.3% | – |
| 2024 | +173.4% | – |
| 2025 | -41.8% | +67.1% |
| 2026 | +25.1% | -20.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMPG and JL good diversifiers for each other?
Only partially. A correlation of 0.53 means AMPG and JL 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 AMPG and JL?
Using weekly returns as of 2026-08-27: 0.53 over 3 years, with -0.05 over the last year and n/a over 5 years.
Is JL a good diversifier for AMPG?
Only partially. A correlation of 0.53 means AMPG and JL share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 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/ampg-vs-jl.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ampg-vs-jl/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AMPG correlations · JL correlations
