RCI vs TMUS: Correlation
How closely do Rogers Communication, Inc. (RCI) and T-Mobile US (TMUS) trade together? Their weekly returns over three years give a correlation of 0.38, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RCI and TMUS?
On 3 years of weekly data the RCI/TMUS correlation comes out at 0.38, moderate. Recent behaviour matches the longer record: 0.47 over 1 year against 0.38 over 3. The 5-year figure is 0.40, and annualized covariance runs at 232.6 %².
Within RCI's tracked universe of 11 assets, TMUS comes in at #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months RCI outperformed by 32.8 percentage points (+4.8% for RCI against -28.0% for TMUS).
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.
RCI vs TMUS: side by side
| RCI (Rogers Communication, Inc.) | TMUS (T-Mobile US) | |
|---|---|---|
| 1-year return | +4.8% | -28.0% |
| 5-year return | -14.6% | +34.8% |
| Volatility (ann.) | 24.8% | 24.6% |
| Beta vs S&P 500 | 0.25 | 0.36 |
| Max drawdown (3Y) | -48.2% | -37.1% |
| Market cap | $19.7B | $190.7B |
| P/E (trailing) | 4.5 | 18.8 |
| Dividend yield | 5.42% | 2.27% |
| Sector / category | US Listed | Communication Services |
Year-by-year returns
| Year | RCI | TMUS |
|---|---|---|
| 2022 | +1.6% | +20.7% |
| 2023 | +3.4% | +15.0% |
| 2024 | -31.9% | +39.7% |
| 2025 | +27.3% | -6.6% |
| 2026 | -1.6% | -11.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RCI and TMUS good diversifiers for each other?
Reasonably. At 0.38, RCI and TMUS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between RCI and TMUS?
Using weekly returns as of 2026-08-27: 0.38 over 3 years, with 0.47 over the last year and 0.40 over 5 years.
Is TMUS a good diversifier for RCI?
Reasonably. At 0.38, RCI and TMUS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.38 mean?
A reading of 0.38 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/rci-vs-tmus.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/rci-vs-tmus/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: RCI correlations · TMUS correlations
