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Hasn't the stock already collapsed below IPO price? Does that mean the IPO was simply overpriced? Do these people expect the stock to go down even further? Shorting is way more risky I don't see why this would be the case unless my questions turned out to be predictions.
Every single shorted stock, was purchased by someone else who is taking the long side of the trade. So there's as many people betting the stock will go up. This says more about volatility and volume of trading, than anything else.
Over two weeks ago, calls outnumbered puts 5 to 1 according to an article by SeekingAlpha. I am wondering if this flip is too reactive. I can't discount the "Musk premium" that keeps people enamored with his securities and cause unpredictability.
That just means lots of people are writing calls[1]

[1] ie are happy to be synthetically short the stock and see a demand for the calls

In a few weeks the pre-ipo share owners can offload the first batch of their shares (after q2 results release)

So guessing non investors in SpaceX are shorting for this event in expectation of a drop

From Matt Levine just today...

https://www.bloomberg.com/opinion/newsletters/2026-07-16/sho...

  Right now, SpaceX has provided 639 million shares to trade. People want more.
  In a month, there will be 1,583 million shares to trade.
  But right now, there are actually 820 million shares to trade: the 639 million provided by SpaceX, plus another 181 million provided by short sellers.
Do the short sellers actually hold shares?
Its more important to know that they are additional selling pressure

every owner is potentially double selling pressure

while liquidity itself is variable

SpaceX's core business is transferring money from believers in Elon Musk's enrichment schemes to banks and short sellers.
I just hope this doesn't destroy the company that would suck lose their edge and then China comes in
There's another Starship launch today. It'll be interesting to watch the stock price react to the failures and successes of their testing campaign.
Down quite sharply in response to the aborted launch.
I'm not crazy enough to try to short it, but getting out of the money put options a year or two out seems like a good idea.

If you're going to short it, you better have a buffer big enough to cover it going up to $500 for a moment somewhere before Elon is free to sell next summer. Someone will do a short squeeze, and slowly sell into it.

I feel like market cap valuations should have some way to factor in the supply/demand constraints. I know that float exists as a concept, but I think it's insane to call SpaceX a Trillion dollar company, when if it started selling significant stock tomorrow, it would probably be selling pennies on the dollar.
Space is old news, it had its moment of euphoria but then AI came around and made space bulls look like fools, because sooner or later quality of life matters and as overvalued as AI could be, it's 1000x more real than space for QOL