GMM vs OPTT: Correlation
Global Mofy AI Limited - Class A (GMM) and Ocean Power Technologies, Inc. (OPTT) show a strong relationship: their 3-year correlation of weekly returns is 0.70.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GMM and OPTT?
On 3 years of weekly data the GMM/OPTT correlation comes out at 0.70, strong. The past 12 months show a weaker link (0.05) than the 3-year average (0.70). The 5-year figure is n/a, and annualized covariance runs at 139195.8 %².
Among the 21 assets we track against GMM, OPTT ranks #4 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months OPTT outperformed by 30.6 percentage points (-97.5% for GMM against -66.9% for OPTT). One caveat on sizing: GMM is 6.2 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.
GMM vs OPTT: side by side
| GMM (Global Mofy AI Limited - Class A) | OPTT (Ocean Power Technologies, Inc.) | |
|---|---|---|
| 1-year return | -97.5% | -66.9% |
| 5-year return | n/a | -91.7% |
| Volatility (ann.) | 1098.3% | 176.9% |
| Beta vs S&P 500 | 2.95 | 2.48 |
| Max drawdown (3Y) | -99.7% | -91.3% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GMM | OPTT |
|---|---|---|
| 2022 | – | -69.6% |
| 2023 | – | -28.9% |
| 2024 | -30.5% | +218.8% |
| 2025 | -69.6% | -70.6% |
| 2026 | -95.4% | -40.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GMM and OPTT good diversifiers for each other?
To a limited degree. At 0.70 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 GMM and OPTT?
The GMM/OPTT correlation stands at 0.70 on a 3-year window (1 year: 0.05, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is OPTT a good diversifier for GMM?
To a limited degree. At 0.70 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 0.70 mean?
On the −1 to +1 scale, 0.70 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/gmm-vs-optt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/gmm-vs-optt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: GMM correlations · OPTT correlations
