GPAT vs RDI: Correlation
Measured on weekly returns over the past three years, GP-Act III Acquisition Corp. - Class A (GPAT) and Reading International Inc - Class A Non-voting (RDI) carry a correlation of -0.16, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GPAT and RDI?
Over the past 3 years, GPAT and RDI moved with a correlation of -0.16, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.26 over 1 year against -0.16 over 3. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -24.5 %².
Among the 22 assets we track against GPAT, RDI ranks #11 by 3-year correlation. Correlation aside, the last 12 months split them widely, with RDI ahead by 33.0 points (+3.4% versus +36.4%). One caveat on sizing: RDI is 13.8 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.
GPAT vs RDI: side by side
| GPAT (GP-Act III Acquisition Corp. - Class A) | RDI (Reading International Inc - Class A Non-voting) | |
|---|---|---|
| 1-year return | +3.4% | +36.4% |
| 5-year return | n/a | -57.8% |
| Volatility (ann.) | 3.2% | 44.2% |
| Beta vs S&P 500 | 0.05 | 0.26 |
| Max drawdown (3Y) | -2.1% | -58.5% |
| Market cap | $0.2B | – |
| P/E (trailing) | 44.6 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GPAT | RDI |
|---|---|---|
| 2022 | – | -31.4% |
| 2023 | – | -31.0% |
| 2024 | – | -30.9% |
| 2025 | +5.4% | -20.5% |
| 2026 | +2.2% | +100.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GPAT and RDI good diversifiers for each other?
Yes. With a correlation of -0.16, GPAT and RDI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between GPAT and RDI?
The GPAT/RDI correlation stands at -0.16 on a 3-year window (1 year: -0.26, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is RDI a good diversifier for GPAT?
Yes. With a correlation of -0.16, GPAT and RDI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.16 mean?
On the −1 to +1 scale, -0.16 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/gpat-vs-rdi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/gpat-vs-rdi/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: GPAT correlations · RDI correlations
