AIIO vs PRTS: Correlation
Measured on weekly returns over the past three years, Robo.ai Inc. - Class B (AIIO) and CarParts.com, Inc. (PRTS) carry a correlation of -0.21, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AIIO and PRTS?
On 3 years of weekly data the AIIO/PRTS correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.30 lands near the 3-year figure. The 5-year figure is -0.16, and annualized covariance runs at -4188.9 %².
By 3-year correlation, PRTS places #17 of the 35 assets tracked against AIIO. Correlation aside, the last 12 months split them widely, with PRTS ahead by 82.1 points (-91.3% versus -9.2%). Note the risk asymmetry: AIIO runs 3.9 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.
AIIO vs PRTS: side by side
| AIIO (Robo.ai Inc. - Class B) | PRTS (CarParts.com, Inc.) | |
|---|---|---|
| 1-year return | -91.3% | -9.2% |
| 5-year return | -98.8% | -95.9% |
| Volatility (ann.) | 280.6% | 72.4% |
| Beta vs S&P 500 | 0.74 | 0.44 |
| Max drawdown (3Y) | -99.7% | -92.1% |
| Market cap | $0.4B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AIIO | PRTS |
|---|---|---|
| 2022 | -9.2% | -44.1% |
| 2023 | -27.5% | -49.5% |
| 2024 | -91.0% | -65.8% |
| 2025 | -56.6% | -53.7% |
| 2026 | -61.3% | +43.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AIIO and PRTS good diversifiers for each other?
Yes. With a correlation of -0.21, AIIO and PRTS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between AIIO and PRTS?
Using weekly returns as of 2026-08-27: -0.21 over 3 years, with -0.30 over the last year and -0.16 over 5 years.
Is PRTS a good diversifier for AIIO?
Yes. With a correlation of -0.21, AIIO and PRTS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.21 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/aiio-vs-prts.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aiio-vs-prts/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AIIO correlations · PRTS correlations
