MPAA vs NATH: Correlation
Measured on weekly returns over the past three years, Motorcar Parts of America, Inc. (MPAA) and Nathan's Famous, Inc. (NATH) carry a correlation of 0.43, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MPAA and NATH?
Over the past 3 years, MPAA and NATH moved with a correlation of 0.43, which is moderate. Little has changed lately, as the 1-year reading of 0.33 lands near the 3-year figure. Over 5 years the correlation is 0.30, and the annualized covariance of weekly returns is 755.0 %².
Among the 12 assets we track against MPAA, NATH ranks #5 by 3-year correlation. Correlation aside, the last 12 months split them widely, with NATH ahead by 18.1 points (-23.6% versus -5.5%). One caveat on sizing: MPAA is 2.8 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.
MPAA vs NATH: side by side
| MPAA (Motorcar Parts of America, Inc.) | NATH (Nathan's Famous, Inc.) | |
|---|---|---|
| 1-year return | -23.6% | -5.5% |
| 5-year return | -42.5% | +68.7% |
| Volatility (ann.) | 69.6% | 25.3% |
| Beta vs S&P 500 | 1.42 | 0.50 |
| Max drawdown (3Y) | -53.3% | -19.5% |
| Market cap | $0.2B | $0.4B |
| P/E (trailing) | – | 20.2 |
| Dividend yield | 0.00% | 2.05% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MPAA | NATH |
|---|---|---|
| 2022 | -30.5% | +18.7% |
| 2023 | -21.2% | +19.2% |
| 2024 | -18.6% | +3.5% |
| 2025 | +62.4% | +24.6% |
| 2026 | -7.0% | +5.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MPAA and NATH good diversifiers for each other?
Reasonably. At 0.43, MPAA and NATH keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between MPAA and NATH?
As of 2026-08-27, the correlation of weekly returns between MPAA and NATH is 0.43 over 3 years, 0.33 over 1 year and 0.30 over 5 years.
Is NATH a good diversifier for MPAA?
Reasonably. At 0.43, MPAA and NATH keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.43 mean?
On the −1 to +1 scale, 0.43 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/mpaa-vs-nath.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mpaa-vs-nath/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: MPAA correlations · NATH correlations
