IMXI vs PBYI: Correlation
How closely do International Money Express, Inc. (IMXI) and Puma Biotechnology Inc (PBYI) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IMXI and PBYI?
Over the past 3 years, IMXI and PBYI moved with a correlation of 0.42, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.02 versus 0.42 over 3 years. Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 1420.9 %².
Among the 16 assets we track against IMXI, PBYI ranks #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months PBYI outperformed by 80.7 percentage points (+0.5% for IMXI against +81.2% for PBYI).
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.
IMXI vs PBYI: side by side
| IMXI (International Money Express, Inc.) | PBYI (Puma Biotechnology Inc) | |
|---|---|---|
| 1-year return | +0.5% | +81.2% |
| 5-year return | -19.7% | +21.4% |
| Volatility (ann.) | 47.9% | 70.9% |
| Beta vs S&P 500 | 0.78 | 0.91 |
| Max drawdown (3Y) | -61.8% | -69.6% |
| Market cap | $0.4B | $0.5B |
| P/E (trailing) | 23.8 | 18.1 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IMXI | PBYI |
|---|---|---|
| 2022 | +52.7% | +39.1% |
| 2023 | -9.4% | +2.4% |
| 2024 | -5.7% | -29.6% |
| 2025 | -26.3% | +95.1% |
| 2026 | -5.7% | +55.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IMXI and PBYI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between IMXI and PBYI?
The IMXI/PBYI correlation stands at 0.42 on a 3-year window (1 year: 0.02, 5 years: 0.29), computed from weekly returns as of 2026-08-27.
Is PBYI a good diversifier for IMXI?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 mean?
A reading of 0.42 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/imxi-vs-pbyi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/imxi-vs-pbyi/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: IMXI correlations · PBYI correlations
