IT vs RDIB: Correlation
Measured on weekly returns over the past three years, Gartner (IT) and Reading International Inc - Class B Voting (RDIB) carry a correlation of -0.18, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IT and RDIB?
On 3 years of weekly data the IT/RDIB correlation comes out at -0.18, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.06 versus -0.18 over 3 years. The 5-year figure is -0.10, and annualized covariance runs at -614.4 %².
Within IT's tracked universe of 36 assets, RDIB comes in at #24 by 3-year correlation. Correlation aside, the last 12 months split them widely, with RDIB ahead by 33.0 points (-20.2% versus +12.8%). Risk is not evenly split, since RDIB carries 2.1 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.
IT vs RDIB: side by side
| IT (Gartner) | RDIB (Reading International Inc - Class B Voting) | |
|---|---|---|
| 1-year return | -20.2% | +12.8% |
| 5-year return | -36.0% | -35.9% |
| Volatility (ann.) | 40.6% | 83.4% |
| Beta vs S&P 500 | 0.92 | 0.58 |
| Max drawdown (3Y) | -77.2% | -72.8% |
| Market cap | $12.4B | $0.4B |
| P/E (trailing) | 17.4 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | IT | RDIB |
|---|---|---|
| 2022 | +0.5% | -14.5% |
| 2023 | +34.2% | -29.1% |
| 2024 | +7.4% | -39.6% |
| 2025 | -47.9% | +36.5% |
| 2026 | -22.1% | +32.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IT and RDIB good diversifiers for each other?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
FAQ
What is the correlation between IT and RDIB?
The IT/RDIB correlation stands at -0.18 on a 3-year window (1 year: -0.06, 5 years: -0.10), computed from weekly returns as of 2026-08-27.
Is RDIB a good diversifier for IT?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
What does a correlation of -0.18 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/it-vs-rdib.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/it-vs-rdib/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IT correlations · RDIB correlations
