BATRK vs IRDM: Correlation
Measured on weekly returns over the past three years, Atlanta Braves Holdings, Inc. - Series C (BATRK) and Iridium Communications Inc (IRDM) carry a correlation of 0.37, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BATRK and IRDM?
On 3 years of weekly data the BATRK/IRDM correlation comes out at 0.37, moderate. Little has changed lately, as the 1-year reading of 0.37 lands near the 3-year figure. The 5-year figure is 0.33, and annualized covariance runs at 346.0 %².
Among the 12 assets we track against BATRK, IRDM ranks #7 by 3-year correlation. The last year tells two different stories: IRDM led by 82.1 percentage points, +13.3% for BATRK against +95.4% for IRDM. Note the risk asymmetry: IRDM runs 2.6 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
BATRK vs IRDM: side by side
| BATRK (Atlanta Braves Holdings, Inc. - Series C) | IRDM (Iridium Communications Inc) | |
|---|---|---|
| 1-year return | +13.3% | +95.4% |
| 5-year return | +96.3% | +8.5% |
| Volatility (ann.) | 19.0% | 49.3% |
| Beta vs S&P 500 | 0.50 | 0.85 |
| Max drawdown (3Y) | -18.7% | -67.5% |
| Market cap | $3.3B | $5.0B |
| P/E (trailing) | – | 54.1 |
| Dividend yield | 0.00% | 1.27% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BATRK | IRDM |
|---|---|---|
| 2022 | +14.7% | +24.5% |
| 2023 | +22.8% | -19.1% |
| 2024 | -3.3% | -28.1% |
| 2025 | +3.1% | -38.5% |
| 2026 | +28.8% | +176.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BATRK and IRDM good diversifiers for each other?
Reasonably. At 0.37, BATRK and IRDM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BATRK and IRDM?
As of 2026-08-27, the correlation of weekly returns between BATRK and IRDM is 0.37 over 3 years, 0.37 over 1 year and 0.33 over 5 years.
Is IRDM a good diversifier for BATRK?
Reasonably. At 0.37, BATRK and IRDM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.37 mean?
On the −1 to +1 scale, 0.37 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/batrk-vs-irdm.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/batrk-vs-irdm/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BATRK correlations · IRDM correlations
