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NewsMacro

SpaceX shares slip below debut price at $148 in two-day fade after Nasdaq-100 entry

SpaceX shares closed at $148, falling below the stock's debut price across two consecutive losing sessions that followed the company's addition to the Nasdaq-100. The retreat arrives against the backdrop of a record offering: total IPO proceeds reached $85.7 billion after underwriters exercised the greenshoe overallotment option. The $148 close is now the reference print heading into the next session.

By Grant HalloranMacro DeskJuly 23, 20262 min read
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Key takeaways

  • SpaceX shares closed at $148, falling below the stock's debut price over two consecutive losing sessions that followed its addition to the Nasdaq-100.
  • Total IPO proceeds reached a record $85.7 billion after underwriters fully exercised the greenshoe overallotment option.
  • The full activation of the greenshoe signals a well-covered book at launch, making the SpaceX debut a record IPO.
  • The two-day slide arrived in the sessions immediately following SpaceX's Nasdaq-100 inclusion, and the market has not signaled whether fading index-buying flow or general IPO overhang is driving the decline.
  • With the greenshoe already exercised, underwriters have used the principal mechanism available to support the newly public stock, and the $148 close is now the reference level to reclaim.

SpaceX shares closed at $148, falling below the stock's debut price across two consecutive losing sessions that followed the company's addition to the Nasdaq-100. The retreat arrives against the backdrop of a record offering: total IPO proceeds reached $85.7 billion after underwriters exercised the greenshoe overallotment option. The $148 close is now the reference print heading into the next session.

The greenshoe and the IPO record

The $85.7 billion figure reflects full activation of the greenshoe, the overallotment provision that allows underwriters to sell additional shares beyond the base offering when demand exceeds the initial allocation. Its exercise signals a well-covered book at launch. That total makes the SpaceX debut a record IPO. Two straight sessions of selling that pushed shares below the debut price are the first real test of that landmark print.

Nasdaq-100 inclusion and what followed

Entry into the Nasdaq-100 carries a mechanical demand signal. Passive funds tracking the index must hold the stock in proportion to its weighting, and that buying is typically positioned ahead of the effective date. Once inclusion takes effect and the anticipated flow is absorbed, the tailwind fades. The two-day slide arrived in the sessions immediately following SpaceX's addition. The tape has not signaled whether that dynamic is driving the give-back or whether sellers are simply working through the IPO overhang.

What to watch

The $148 level is now the line to reclaim. With the greenshoe already exercised, underwriters have used the principal mechanism available to support a newly public stock in the secondary market. The debut price, which the $148 close now undercuts, is the setup's defining reference for the sessions ahead.

Related reading

About this story

Filed by the macro desk of MarketPR on July 23, 2026. Source: cnbc.com. Indicative figures are not investment advice.

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Frequently asked

Why did SpaceX shares fall below their debut price?

Shares closed at $148 after two consecutive losing sessions that followed the company's addition to the Nasdaq-100. The article notes it is unclear whether fading passive-fund buying or general IPO overhang is driving the decline.

How much did SpaceX raise in its IPO?

Total IPO proceeds reached $85.7 billion after underwriters exercised the greenshoe overallotment option, making it a record IPO.

What is the greenshoe option and why does its exercise matter?

The greenshoe is an overallotment provision allowing underwriters to sell additional shares beyond the base offering when demand exceeds the initial allocation, and its full exercise signals a well-covered book at launch.

How does Nasdaq-100 inclusion affect the stock?

Passive funds tracking the index must hold the stock in proportion to its weighting, and that buying is typically positioned ahead of the effective date, so the tailwind fades once inclusion takes effect and the anticipated flow is absorbed.

What level are traders watching next?

The $148 close is the defining reference level to reclaim heading into the sessions ahead, as it now undercuts the debut price.