AFJK vs PETS: Correlation
Aimei Health Technology Co., Ltd (AFJK) and PetMed Express, Inc. (PETS) show a moderate relationship: their 3-year correlation of weekly returns is 0.58.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AFJK and PETS?
On 3 years of weekly data the AFJK/PETS correlation comes out at 0.58, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.73 versus 0.58 over 3 years. The 5-year figure is n/a, and annualized covariance runs at 8707.4 %².
PETS is one of the assets that tracks AFJK most closely: it ranks #2 out of the 29 assets we track against AFJK. Their recent paths diverged sharply: over the last 12 months AFJK outperformed by 49.9 percentage points (+8.4% for AFJK against -41.5% for PETS). Risk is not evenly split, since AFJK carries 2.7 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.
AFJK vs PETS: side by side
| AFJK (Aimei Health Technology Co., Ltd) | PETS (PetMed Express, Inc.) | |
|---|---|---|
| 1-year return | +8.4% | -41.5% |
| 5-year return | n/a | -92.7% |
| Volatility (ann.) | 197.3% | 72.9% |
| Beta vs S&P 500 | 0.18 | 1.10 |
| Max drawdown (3Y) | -86.8% | -86.3% |
| Market cap | – | – |
| P/E (trailing) | 174.3 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AFJK | PETS |
|---|---|---|
| 2022 | – | -25.8% |
| 2023 | – | -54.8% |
| 2024 | – | -36.2% |
| 2025 | +498.2% | -33.6% |
| 2026 | -80.9% | -42.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AFJK and PETS good diversifiers for each other?
To a limited degree. At 0.58 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 AFJK and PETS?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.73 over the last year and n/a over 5 years.
Is PETS a good diversifier for AFJK?
To a limited degree. At 0.58 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 0.58 mean?
On the −1 to +1 scale, 0.58 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/afjk-vs-pets.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/afjk-vs-pets/)
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Related comparisons
Hubs: AFJK correlations · PETS correlations
