MF vs OPTT: Correlation
Measured on weekly returns over the past three years, MindForge Inc. - Class A (MF) and Ocean Power Technologies, Inc. (OPTT) carry a correlation of 0.68, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MF and OPTT?
On 3 years of weekly data the MF/OPTT correlation comes out at 0.68, strong. The past 12 months show a weaker link (0.09) than the 3-year average (0.68). The 5-year figure is n/a, and annualized covariance runs at 110641.1 %².
Among the 23 assets we track against MF, OPTT ranks #4 by 3-year correlation. Twelve-month performance is nearly a tie, at -71.6% for MF and -66.9% for OPTT. Note the risk asymmetry: MF runs 4.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
MF vs OPTT: side by side
| MF (MindForge Inc. - Class A) | OPTT (Ocean Power Technologies, Inc.) | |
|---|---|---|
| 1-year return | -71.6% | -66.9% |
| 5-year return | n/a | -91.7% |
| Volatility (ann.) | 830.3% | 176.9% |
| Beta vs S&P 500 | 3.38 | 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 | MF | OPTT |
|---|---|---|
| 2022 | – | -69.6% |
| 2023 | – | -28.9% |
| 2024 | – | +218.8% |
| 2025 | -40.7% | -70.6% |
| 2026 | -62.4% | -40.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MF and OPTT good diversifiers for each other?
To a limited degree. At 0.68 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 MF and OPTT?
As of 2026-08-27, the correlation of weekly returns between MF and OPTT is 0.68 over 3 years, 0.09 over 1 year and n/a over 5 years.
Is OPTT a good diversifier for MF?
To a limited degree. At 0.68 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 0.68 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/mf-vs-optt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mf-vs-optt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: MF correlations · OPTT correlations
