Who Will Take Over After SpaceX's IPO?

marsbitPublished on 2026-06-12Last updated on 2026-06-12

Abstract

SpaceX is set to go public on June 12 with a $1.8 trillion valuation, but only about 5.56 billion shares (4.2% of the total) will be initially available for trading. Buy-side pressure is expected in three distinct waves. First, the IPO subscription at a fixed $135 per share, which is oversubscribed by nearly 4 times. Second, immediate secondary market trading post-listing. Third, and most significant, the forced buying by passive index funds. The Nasdaq 100 index has modified its rules to include SpaceX just 15 trading days after its IPO, despite its small float, which will compel hundreds of tracking funds to buy large quantities of stock. However, this initial supply shortage will not last. A staged lock-up release is designed for the approximately 54% of shares held by VCs, early employees, and other insiders (excluding Elon Musk's 42%, which is locked for 366 days). Releases begin after the Q2 earnings report, with subsequent unlocks at multiple intervals up to 180 days post-IPO. This means selling pressure from insiders will gradually increase throughout the latter half of the year. A key counterbalance is scheduled for mid-December during the Nasdaq 100's annual rebalancing. By then, the public float will have expanded significantly, forcing index funds to buy more shares, potentially providing institutional support after months of insider selling.

Author: BitalkNews

On June 12, SpaceX will go public with a valuation of $1.8 trillion, but only about 556 million shares will actually enter circulation, corresponding to a float market cap of approximately $75 billion, which is about 4.2% of the total valuation.

In the initial phase of listing, the free float will be extremely small, but buying demand will arrive in three consecutive waves.

The first wave is the IPO subscription on June 12. Institutions and retail investors will buy the newly issued 556 million shares at a fixed price of $135. About 70% will be allocated to institutional investors, and 30% will be reserved for retail investors—a retail allocation three times higher than in a typical large IPO. Ordinary investors can subscribe through platforms like Robinhood and Fidelity. Current subscription demand has already exceeded $250 billion, nearly 4 times oversubscribed.

The second wave is trading in the secondary market after the opening. After the IPO subscription is completed, the stock will start trading on NASDAQ. The opening price is highly likely to be above $135. Prices during this phase will be determined by market supply and demand.

The third wave is the forced buying by passive funds, which is the most noteworthy aspect. The Nasdaq 100 is one of the most important stock indices in the U.S., containing the 100 largest non-financial stocks, including Apple, Nvidia, and Microsoft. Globally, over $600 billion in funds track this index, and they are required to hold each stock according to its weight in the index.

Normally, a newly listed company must wait several months to qualify for inclusion, but NASDAQ has specifically modified its rules for SpaceX, allowing fast-track inclusion just 15 trading days after listing. It has also removed the original 10% minimum free-float requirement and introduced a new weighting rule: even though SpaceX's actual free float is only 5%, the index will calculate its weight as up to 3 times that, or 15%. Once the inclusion takes effect, hundreds of funds tracking the index will need to buy SpaceX shares within a few days. With a float of only $75 billion, the concentrated influx of buying demand in a short period can easily drive up the price. These funds do not consider valuation or make judgments; they buy when the rules dictate.

These three waves of buying demand will occur almost seamlessly within the first month after listing.

However, this supply-demand imbalance will not last forever.

SpaceX has not adopted the traditional 180-day lock-up period common in IPOs. Instead, it has designed a phased release mechanism.

To understand this mechanism, we first need to grasp the post-IPO shareholding structure: The newly issued IPO shares account for about 4.2% of the total shares. Elon Musk personally holds about 42%, while the remaining approximately 54% is held by VCs, early employees, and other internal shareholders. The newly issued portion becomes tradable upon listing. Musk's shares are fully locked for 366 days and will not move. The phased unlocking applies only to the middle 54%.

Specific timeline:

  • First wave, two days after the Q2 earnings release: Locked-up shareholders can sell up to 20% of their locked shares. If the stock price stays 30% above the IPO price and meets the threshold for 5 out of 10 trading days at this point, an additional 10% will be unlocked. This means the earliest group of insiders may start selling as soon as early August.
  • Second wave, on days 70, 90, 105, 120, and 135 after the IPO: 7% will be unlocked at each milestone, totaling 35% across the five milestones.
  • Third wave, after the Q3 earnings release, another 28% is unlocked, with the remainder released upon the expiration of the 180-day lock-up.

Elon Musk's shares are locked for 366 days, and he does not participate in any early releases. He controls over 85% of the voting rights, and this commitment is a crucial pillar of short-term market confidence in SpaceX.

From listing until the end of the year, the market will experience a six-month transformation in supply and demand dynamics. In the first half, the free float is locked up, and buying demand is highly predictable. In the second half, shares are gradually released, and each earnings milestone becomes a test of selling pressure.

The timing design is particularly noteworthy: By the time of the Nasdaq 100 annual rebalancing in mid-December, most insider shares will have been unlocked through the earlier phases. With the free float significantly increased, NASDAQ will correspondingly raise SpaceX's index weight, prompting passive funds to purchase additional shares again. This essentially provides institutional, mandatory buying support to cushion the market several months after insiders have sold substantial amounts.

Related Questions

QAccording to the article, what is the special arrangement made by NASDAQ to include SpaceX in the NASDAQ-100 index, and what is its potential impact?

ANASDAQ specially modified its rules for SpaceX, allowing it to be eligible for inclusion in the NASDAQ-100 just 15 trading days after its IPO. This move removed the previous 10% minimum free float requirement and introduced a new weighting rule: even though SpaceX's actual free float is only about 5%, the index will calculate its weight based on a cap of up to three times that, or 15%. This means that upon inclusion, passive funds tracking the index will be forced to buy a significant amount of SpaceX stock relative to its small float, potentially pushing up the price sharply in a short period.

QDescribe the three waves of buying pressure for SpaceX stock mentioned in the article and the sequence in which they occur.

AThe three waves of buying pressure are: 1) The IPO subscription on June 12th, where institutions and retail investors purchase the newly issued shares at a fixed price of $135. 2) Secondary market trading after the stock begins trading on NASDAQ, where the price is set by market supply and demand. 3) The mandatory buying by passive index funds after SpaceX is included in the NASDAQ-100 index. These three waves of buying pressure are described as occurring almost seamlessly within the first month after the listing.

QHow does SpaceX's lock-up release mechanism for insiders differ from a traditional 180-day lock-up, and what is its schedule?

ASpaceX does not use a traditional 180-day uniform lock-up expiration. Instead, it has a staged release mechanism for the approximately 54% of shares held by VCs, early employees, and other insiders. The schedule is: The first wave allows locked-up shareholders to sell up to 20% of their holdings two days after the Q2 earnings report, with an extra 10% unlocked if the stock price meets certain conditions. The second wave involves unlocks of 7% each on days 70, 90, 105, 120, and 135 post-IPO, totaling 35%. The third wave unlocks 28% after the Q3 earnings report, with the remainder released at the 180-day mark. Elon Musk's 42% stake is locked for 366 days and is not part of this staged release.

QWhat role does the NASDAQ-100 annual rebalancing in mid-December play according to the article's analysis of the supply and demand dynamics for SpaceX stock?

AThe article suggests that by the time of the NASDAQ-100's annual rebalancing in mid-December, most of the insider shares will have been unlocked through the earlier staged releases. With the free float significantly increased by then, NASDAQ will correspondingly raise SpaceX's weighting in the index. This forces the passive funds tracking the index to buy additional shares again. This institutional, forced buying is seen as providing a market floor several months after the period of heavy potential selling by insiders.

QWhat is the estimated total valuation of SpaceX at its IPO, and what is the size and percentage of the initial free float being offered?

ASpaceX is going public with an estimated total valuation of $1.8 trillion. The actual number of shares entering circulation at the IPO is about 556 million, corresponding to a free-float market capitalization of approximately $75 billion, which represents about 4.2% of the total valuation.

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