AST SpaceMobilevs.Iridium Communications
ASTS vs IRDM · both in Space industry & satellites, part of the Defense, security & space value chain: Launch, satellite communications and space systems — civil and military.
AST SpaceMobile is about 5.4× larger than Iridium Communications by market cap; year to date, Iridium Communications leads (+188.0% vs +1.0%).
Side by side
| ASTS | IRDM | |
|---|---|---|
| Market cap | $28.4B | $5.3B |
| Price | $73.32 | $50.06 |
| Today | −0.8% | −1.1% |
| Return YTD | +1.0% | +188.0% |
| Return 1Y | +66.8% | +56.1% |
| P/E | — | 49.8 |
| P/S | 334.2 | 6.0 |
| P/B | 13.6 | 11.2 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
AST SpaceMobileASTS
Building a satellite network to give ordinary mobile phones direct connectivity from space — still in the build-out phase.
Full ASTS profile →Iridium CommunicationsIRDM
Operates a global satellite network for communications — coverage everywhere on earth for shipping, defense and IoT.
Full IRDM profile →More comparisons in Space industry & satellites
See where ASTS and IRDM sit in the full Defense, security & space map — every segment from suppliers to end markets.Open the Defense value chain →