IDAI vs ISTR: Correlation
T Stamp Inc. (IDAI) and Investar Holding Corporation (ISTR) 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 IDAI and ISTR?
On 3 years of weekly data the IDAI/ISTR correlation comes out at -0.19, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.03) than the 3-year average (-0.19). The 5-year figure is -0.15, and annualized covariance runs at -3072.7 %².
Within IDAI's tracked universe of 36 assets, ISTR comes in at #19 by 3-year correlation. Correlation aside, the last 12 months split them widely, with ISTR ahead by 16.8 points (+15.5% versus +32.3%). One caveat on sizing: IDAI is 15.8 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.
IDAI vs ISTR: side by side
| IDAI (T Stamp Inc.) | ISTR (Investar Holding Corporation) | |
|---|---|---|
| 1-year return | +15.5% | +32.3% |
| 5-year return | -76.5% | +50.1% |
| Volatility (ann.) | 505.7% | 32.1% |
| Beta vs S&P 500 | -1.01 | 0.84 |
| Max drawdown (3Y) | -92.9% | -35.3% |
| Market cap | – | $0.4B |
| P/E (trailing) | – | 12.4 |
| Dividend yield | 0.00% | 1.50% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IDAI | ISTR |
|---|---|---|
| 2022 | -88.0% | +19.0% |
| 2023 | -43.0% | -28.6% |
| 2024 | -35.5% | +50.7% |
| 2025 | +342.8% | +24.2% |
| 2026 | -14.3% | +14.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IDAI and ISTR good diversifiers for each other?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between IDAI and ISTR?
As of 2026-08-27, the correlation of weekly returns between IDAI and ISTR is -0.19 over 3 years, 0.03 over 1 year and -0.15 over 5 years.
Is ISTR a good diversifier for IDAI?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.19 mean?
On the −1 to +1 scale, -0.19 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/idai-vs-istr.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/idai-vs-istr/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IDAI correlations · ISTR correlations
