Are IRDM and RKLB correlated?

IRDM and RKLB have a 252-day pairwise correlation of 0.53 (moderate). Values above 0.6 indicate the two stocks tend to move together as part of the same capital flow; below 0.4 they're largely independent.

Do IRDM and RKLB share any ETFs?

Yes - 1 ETFs hold both IRDM and RKLB, including UFO.

Which bubbles or themes do IRDM and RKLB share?

IRDM and RKLB share these AI-supercycle groupings: Space / Sat Comms (bubble).

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: $44.04
Market cap: $4.7B
Sector: Communication Services
30d return: -9.7%
90d return: -21.0%
252d return: -

RKLBUS

Rocket Lab USA, Inc.

Last close: $53.07
Market cap: $33.9B
Sector: Industrials
30d return: -28.2%
90d return: -47.0%
252d return: -

252-day correlation

0.53moderate

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

Space / Sat Comms

ETFs (1)

UFO

Want the full picture? IRDM stock page · RKLB stock page · full correlation matrix

Data refreshes daily. Last close 2026-11-08.