DDT vs IBIO: Correlation
How closely do Dillard's Capital Trust I (DDT) and iBio, Inc. (IBIO) trade together? Their weekly returns over three years give a correlation of -0.27, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DDT and IBIO?
On 3 years of weekly data the DDT/IBIO correlation comes out at -0.27, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.11) than the 3-year average (-0.27). The 5-year figure is -0.14, and annualized covariance runs at -324.3 %².
IBIO is close to the least connected end of DDT's tracked universe, ranking #12 of 12. The last year tells two different stories: IBIO led by 64.5 percentage points, +8.3% for DDT against +72.8% for IBIO. Risk is not evenly split, since IBIO carries 32.2 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.
DDT vs IBIO: side by side
| DDT (Dillard's Capital Trust I) | IBIO (iBio, Inc.) | |
|---|---|---|
| 1-year return | +8.3% | +72.8% |
| 5-year return | +43.4% | -99.8% |
| Volatility (ann.) | 6.1% | 196.4% |
| Beta vs S&P 500 | 0.11 | 1.36 |
| Max drawdown (3Y) | -4.6% | -92.9% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | – | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | DDT | IBIO |
|---|---|---|
| 2022 | -3.3% | -96.8% |
| 2023 | +9.8% | -84.4% |
| 2024 | +7.4% | +78.8% |
| 2025 | +9.5% | -21.2% |
| 2026 | +6.0% | -27.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DDT and IBIO good diversifiers for each other?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between DDT and IBIO?
Using weekly returns as of 2026-08-27: -0.27 over 3 years, with -0.11 over the last year and -0.14 over 5 years.
Is IBIO a good diversifier for DDT?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.27 mean?
A reading of -0.27 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/ddt-vs-ibio.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ddt-vs-ibio/)
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Related comparisons
Hubs: DDT correlations · IBIO correlations
