IBOC vs TDUP: Correlation
How closely do International Bancshares Corporation (IBOC) and ThredUp Inc. (TDUP) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IBOC and TDUP?
Over the past 3 years, IBOC and TDUP moved with a correlation of 0.47, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.34 versus 0.47 over 3 years. Over 5 years the correlation is 0.31, and the annualized covariance of weekly returns is 1485.9 %².
Among the 14 assets we track against IBOC, TDUP ranks #8 by 3-year correlation. The last year tells two different stories: IBOC led by 75.8 percentage points, -0.9% for IBOC against -76.7% for TDUP. One caveat on sizing: TDUP is 4.4 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
IBOC vs TDUP: side by side
| IBOC (International Bancshares Corporation) | TDUP (ThredUp Inc.) | |
|---|---|---|
| 1-year return | -0.9% | -76.7% |
| 5-year return | +91.3% | -86.2% |
| Volatility (ann.) | 26.9% | 117.6% |
| Beta vs S&P 500 | 0.77 | 2.72 |
| Max drawdown (3Y) | -24.1% | -87.2% |
| Market cap | $4.4B | $0.4B |
| P/E (trailing) | 10.7 | – |
| Dividend yield | 2.02% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IBOC | TDUP |
|---|---|---|
| 2022 | +10.9% | -89.7% |
| 2023 | +22.0% | +71.8% |
| 2024 | +19.1% | -38.2% |
| 2025 | +7.4% | +359.7% |
| 2026 | +8.4% | -58.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IBOC and TDUP good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.47 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between IBOC and TDUP?
As of 2026-08-27, the correlation of weekly returns between IBOC and TDUP is 0.47 over 3 years, 0.34 over 1 year and 0.31 over 5 years.
Is TDUP a good diversifier for IBOC?
Yes, to a useful degree: a correlation of 0.47 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.47 mean?
On the −1 to +1 scale, 0.47 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/iboc-vs-tdup.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/iboc-vs-tdup/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IBOC correlations · TDUP correlations
