FAST vs MAAS: Correlation
Fastenal (FAST) and Maase Inc. - Class A (MAAS) show a negative relationship: their 3-year correlation of weekly returns is -0.18.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FAST and MAAS?
Over the past 3 years, FAST and MAAS moved with a correlation of -0.18, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.31 versus -0.18 over 3 years. Over 5 years the correlation is -0.13, and the annualized covariance of weekly returns is -537.0 %².
Among the 33 assets we track against FAST, MAAS ranks #26 by 3-year correlation. Correlation aside, the last 12 months split them widely, with MAAS ahead by 304.3 points (+4.1% versus +308.4%). Risk is not evenly split, since MAAS carries 5.3 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.
FAST vs MAAS: side by side
| FAST (Fastenal) | MAAS (Maase Inc. - Class A) | |
|---|---|---|
| 1-year return | +4.1% | +308.4% |
| 5-year return | +105.5% | -94.5% |
| Volatility (ann.) | 24.0% | 126.1% |
| Beta vs S&P 500 | 0.63 | 1.00 |
| Max drawdown (3Y) | -21.9% | -99.6% |
| Market cap | $58.7B | $7.3B |
| P/E (trailing) | 43.7 | – |
| Dividend yield | 1.80% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | FAST | MAAS |
|---|---|---|
| 2022 | -24.3% | +14.9% |
| 2023 | +41.3% | -19.2% |
| 2024 | +13.5% | -94.6% |
| 2025 | +14.0% | -73.1% |
| 2026 | +29.5% | +206.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FAST and MAAS good diversifiers for each other?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
FAQ
What is the correlation between FAST and MAAS?
As of 2026-08-27, the correlation of weekly returns between FAST and MAAS is -0.18 over 3 years, -0.31 over 1 year and -0.13 over 5 years.
Is MAAS a good diversifier for FAST?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
What does a correlation of -0.18 mean?
On the −1 to +1 scale, -0.18 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/fast-vs-maas.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/fast-vs-maas/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FAST correlations · MAAS correlations
