SpaceX’s $75B IPO boosts Mag8 Bitcoin exposure to 25% with Russell, MSCI inclusion
MSFT•SpaceX's $75B IPO onboarded 18,712 Bitcoin (cost $661M), making two of the eight Mag8 members Bitcoin holders and boosting Mag8’s BTC share to 25%. Its fast-track inclusion in Russell 1000/Top 200 on June 26 and MSCI on June 29 may marginally dilute Microsoft’s index weight, with S&P 500 entry deferred to mid-2027.
1. SpaceX’s Record $75B IPO
SpaceX sold 555.6 million shares in its Nasdaq debut, raising $75 billion in the largest public market offering ever. The capital inflow underscores investor appetite for mega-cap space ventures and sets a new benchmark for IPO scale.
2. Corporate Bitcoin Treasury
The company’s S-1 filing reveals a Bitcoin holding of 18,712 coins acquired at a total cost of $661 million, at an average price of roughly $35,300 per coin. This makes SpaceX and Tesla the only two Mag8 members with on-balance-sheet Bitcoin, lifting the group’s aggregate BTC share to 25%.
3. Index Inclusion Timeline
Under a fast-entry rule, SpaceX will join the Russell 1000 and Russell Top 200 on June 26, with MSCI adding the stock to its standard and large-cap indexes on June 29. Entry into the S&P 500 is postponed until the company meets the four-quarter GAAP profitability requirement, now expected by mid-2027.
4. Impact on Microsoft
SpaceX’s index additions will occupy weight that could otherwise flow to existing mega-caps like Microsoft, causing a marginal reduction in its Russell and MSCI index allocations. Investors tracking these benchmarks may adjust holdings to reflect the new distribution of mega-cap stock influence.
