AUPH vs DDI: Correlation
How closely do Aurinia Pharmaceuticals Inc (AUPH) and DoubleDown Interactive Co., Ltd. - American Depository (DDI) trade together? Their weekly returns over three years give a correlation of -0.26, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AUPH and DDI?
Across a 3-year window, the weekly returns of AUPH and DDI correlate at -0.26, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.13) runs above the 3-year figure (-0.26). Stretching to 5 years gives -0.05, with an annualized covariance of -545.0 %².
By 3-year correlation, DDI places #13 of the 20 assets tracked against AUPH. Twelve-month performance is nearly a tie, at +36.0% for AUPH and +34.5% for DDI.
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.
AUPH vs DDI: side by side
| AUPH (Aurinia Pharmaceuticals Inc) | DDI (DoubleDown Interactive Co., Ltd. - American Depository) | |
|---|---|---|
| 1-year return | +36.0% | +34.5% |
| 5-year return | -3.2% | -28.2% |
| Volatility (ann.) | 41.8% | 51.1% |
| Beta vs S&P 500 | 0.59 | 0.44 |
| Max drawdown (3Y) | -52.8% | -52.1% |
| Market cap | $2.2B | $0.6B |
| P/E (trailing) | 7.3 | 5.1 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AUPH | DDI |
|---|---|---|
| 2022 | -81.1% | -45.5% |
| 2023 | +108.1% | -13.0% |
| 2024 | -0.1% | +42.0% |
| 2025 | +77.6% | -17.3% |
| 2026 | +3.3% | +47.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AUPH and DDI good diversifiers for each other?
By historical standards, yes. A correlation of -0.26 means the two rarely move for the same reasons.
FAQ
What is the correlation between AUPH and DDI?
Using weekly returns as of 2026-08-27: -0.26 over 3 years, with -0.13 over the last year and -0.05 over 5 years.
Is DDI a good diversifier for AUPH?
By historical standards, yes. A correlation of -0.26 means the two rarely move for the same reasons.
What does a correlation of -0.26 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/auph-vs-ddi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/auph-vs-ddi/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AUPH correlations · DDI correlations
