SpaceX Faces Its Bubble Test As Forced Index Buying Kicks Off

SpaceX will join the Nasdaq-100 before markets open on Jul. 7, forcing passive funds to buy billions in shares just weeks after the largest IPO on record.

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SpaceX Index Entry Set for Jul. 7

Nasdaq confirmed the move after the close on Jun. 26. The exchange rewrote its eligibility rules this spring, letting very large new listings join the index after just 15 trading days instead of the months companies once waited.

That waiver cleared the rocket maker, which trades as SPCX, only weeks after its Jun. 12 market debut. More than $800 billion tracks the index, led by the Invesco QQQ Trust, one of the most heavily traded funds on the market, so any portfolio built to mirror it must now hold the stock. SpaceX enters with a weight near 1%, held down by a small public float that still drives heavy mechanical demand.

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Passive Flows Test SpaceX Stock

Analysts at J.P. Morgan estimate the Nasdaq-100 entry alone could draw about $4.3 billion in passive buying as trackers rebalance. SpaceX also landed in the Russell 1000 and Russell 3000, where index trackers may add close to $3 billion more in the days around the switch, on top of the Nasdaq-100 flows.

Not everyone trusts the rally. Veteran investor Jeremy Grantham called the stock a bubble, and the shares have slid about 32% from a peak near $225 that a thin float had powered in early trading. Morningstar pegged fair value near $780 billion, far below the first-day market value of roughly $2.1 trillion, while the S&P 500 has so far declined to add the stock at all.

Critics argue that pairing the fast-track rule with a public float near 5%, well under the usual SEC threshold, propped up the opening price at the expense of retail buyers and retirement savers.

SPCX Debut Fuels Valuation Debate

The buying is a one-time event. One study put index demand near $10 billion, about 8% of the free float, while the consensus 12-month target sits near $188, a split that captures deep disagreement over how fast the business can grow.

SpaceX has had a wild first month in public markets. It priced at $135 a share on Jun. 12, valuing the firm at $1.77 trillion, raised about $86 billion in the biggest IPO ever, then spiked toward $225 before pulling back. Last week the company sold $25 billion in senior notes, piling on leverage just as the forced index buying begins, adding interest costs to a firm still posting losses.

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