Stock comparison
IRDM vs RKLB
Iridium Communications Inc. and Rocket Lab USA, Inc. - both members of Space / Sat Comms.
IRDMUS
Iridium Communications Inc.
- Last close
- $48.98
- Market cap
- $5.2B
- Sector
- Communication Services
- 30d return
- -2.2%
- 90d return
- +35.6%
- 252d return
- -
RKLBUS
Rocket Lab USA, Inc.
- Last close
- $72.57
- Market cap
- $46.4B
- Sector
- Industrials
- 30d return
- -10.5%
- 90d return
- +0.5%
- 252d return
- -
252-day correlation
0.44moderate
Pearson correlation of daily log-returns over the last 252 trading days. >0.6 = tight (move as one bloc); 0.4-0.6 = thematic linkage;<0.4 = largely independent. See the full matrix.
Shared context
Bubbles
Want the full picture? IRDM stock page · RKLB stock page · full correlation matrix
Data refreshes daily. Last close 2026-08-21.