SpaceX's stock price has been pumped up by a tiny supply, and that could reverse hard — bad news for anyone buying in now.

• Only 4.2% of SpaceX shares can actually be traded right now, so the price is easy to push up.
• Banks and big investors kept supply low on purpose to drive the price higher.
• That spike added hugely to Elon Musk's paper net worth in just days.
• By mid-2027, over half of SpaceX shares are set to become available to sell.
• Far more sellers next year could send the price falling.

Outlook: As locked-up shares free up through 2027, expect selling pressure that could pull SpaceX's stock price down.