LLY vs PRTS: Correlation
Lilly (Eli) (LLY) and CarParts.com, Inc. (PRTS) show a negative relationship: their 3-year correlation of weekly returns is -0.19.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LLY and PRTS?
Over the past 3 years, LLY and PRTS moved with a correlation of -0.19, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.22) sits close to the 3-year figure. Over 5 years the correlation is -0.11, and the annualized covariance of weekly returns is -496.4 %².
By 3-year correlation, PRTS places #20 of the 29 assets tracked against LLY. The last year tells two different stories: LLY led by 70.4 percentage points, +61.2% for LLY against -9.2% for PRTS. Risk is not evenly split, since PRTS carries 2.0 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.
LLY vs PRTS: side by side
| LLY (Lilly (Eli)) | PRTS (CarParts.com, Inc.) | |
|---|---|---|
| 1-year return | +61.2% | -9.2% |
| 5-year return | +369.2% | -95.9% |
| Volatility (ann.) | 36.6% | 72.4% |
| Beta vs S&P 500 | 0.57 | 0.44 |
| Max drawdown (3Y) | -34.5% | -92.1% |
| Market cap | $1,048.8B | $0.1B |
| P/E (trailing) | 40.0 | – |
| Dividend yield | 0.54% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | LLY | PRTS |
|---|---|---|
| 2022 | +34.3% | -44.1% |
| 2023 | +60.9% | -49.5% |
| 2024 | +33.3% | -65.8% |
| 2025 | +40.2% | -53.7% |
| 2026 | +10.0% | +43.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LLY and PRTS good diversifiers for each other?
Yes. With a correlation of -0.19, LLY and PRTS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between LLY and PRTS?
Using weekly returns as of 2026-08-27: -0.19 over 3 years, with -0.22 over the last year and -0.11 over 5 years.
Is PRTS a good diversifier for LLY?
Yes. With a correlation of -0.19, LLY and PRTS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.19 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/lly-vs-prts.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/lly-vs-prts/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: LLY correlations · PRTS correlations
