Arm Holdings vs SpaceX — IPO & Funding Comparison

Arm Holdings

Semiconductor IP company designing the processor architecture in 99% of smartphones.

IndustrySemiconductors
StagePublic
IPO StatusPublic
Valuation$130B
Total Funding$4.2B (SoftBank acquisition)
HeadquartersCambridge, UK

SpaceX

Aerospace manufacturer and space transportation company pursuing the largest IPO in history — targeting a $75B raise at a $1.75T valuation following the xAI merger in February 2026.

IndustryAerospace & Defense
StagePre-IPO
IPO StatusPre-IPO
Valuation$1.25T
Total Funding$11.9B
HeadquartersHawthorne, CA