Stock Markets June 15, 2026 10:25 AM

SpaceX IPO Tops $85.7 Billion After Underwriters Activate Greenshoe

Underwriters exercise $10.7 billion overallotment, lifting total proceeds from an initial $75 billion haul

By Caleb Monroe
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SpaceX completed its initial public offering with total proceeds of $85.7 billion after underwriters exercised an overallotment option worth $10.7 billion. The company initially raised $75 billion at the IPO, and the activated greenshoe is among the largest recorded for technology listings. Underwriters typically use the overallotment when a stock’s price rises after its market debut.

SpaceX IPO Tops $85.7 Billion After Underwriters Activate Greenshoe
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Key Points

  • SpaceX’s IPO raised a total of $85.7 billion after underwriters exercised a $10.7 billion greenshoe - impacting capital markets and the technology and aerospace sectors.
  • The company initially raised $75 billion at the offering, with the additional proceeds coming from the overallotment option activated post-debut.
  • The activated greenshoe is one of the largest seen among technology initial public offerings, reflecting strong immediate demand and common underwriter practice when a debuting stock trades higher.

SpaceX has finalized its public offering with total capital raised reaching $85.7 billion, after underwriters exercised an overallotment provision following the IPO.

The company initially secured $75 billion from the offering on Thursday. The additional $10.7 billion was generated through the overallotment option, commonly referred to as a greenshoe, which underwriters put into effect in the period after the stock began trading.

The activated greenshoe contributed materially to the final tally, and the offering’s extra allotment is noted as one of the largest greenshoes among technology initial public offerings on record.

Industry practice is to enable the overallotment when a stock trades higher after its public debut. In this instance, underwriters moved to exercise that option, resulting in the increased proceeds now reported for SpaceX’s market entry.


Context and mechanics

The overallotment option, or greenshoe, is a mechanism that allows underwriters to allocate additional shares beyond the original offering size. When exercised, it increases the total amount of capital raised. In the case of SpaceX, activation of the $10.7 billion greenshoe raised the company’s IPO proceeds from $75 billion to $85.7 billion.

Implications for markets

The completed transaction and the large activated greenshoe are significant events for capital markets, particularly those focused on technology and aerospace-related investment themes. The size of the additional allotment highlights substantial demand in the immediate aftermath of the listing, consistent with the common practice of deploying the option when a debuting stock shows price strength.


Summary

  • SpaceX completed its IPO with $85.7 billion raised after underwriters exercised a $10.7 billion greenshoe.
  • The company initially raised $75 billion on Thursday.
  • The activated overallotment is among the largest recorded in technology IPOs, and underwriters typically use this option when a stock’s price rises after debut.

Risks

  • The decision to exercise the overallotment typically follows a rise in the stock price after debut, indicating uncertainty about post-IPO price movement - this affects equity market participants and short-term investors.
  • The large size of the greenshoe introduces uncertainty for capital markets in terms of supply and demand dynamics following the listing, potentially influencing valuations in the technology sector.

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