> My best guess, it makes it harder to get loans in the future.

Which is pretty important! It's my understanding that from all that money they raised during their IPO, a good amount of it went right back out the door again to pay off misc loans for the twitter acquisition. They may only have bought themselves 6 more months of time given their purported burn rate (mostly driven by AI investment), so they're going to need more loans really soon, or another major stock offering.

They have a $5bn credit line, and this means the creditor might increase the interest on it.

It's better described as "it increases operational risks to SpaceX". When they face some future difficulty, the odds they can come out of it are lowered. Which is itself a factor that partners consider, including employees, because obviously people prefer to bet their livelihoods on more of a sure thing.

This is about their bond, not that share price. If you are in the US, it's like having low credit score, everything you want to do financially such as leasing or financing a car, buying a house, etc.. will be more costly (higher interest rate) from the lender.

This is a potentially strong indicator of how institutional investors view spacex. Given that Spacex is in a high depreciation/capital intensive business, a high cost of capital and potentially difficult capital terms is problematic.

Spacex will raise more money again, they have no known path to structural profitability.

Let's say you have a private company and want to raise money.

The people that give you money, i.e. private equity or banks will demand to see your actual finances before giving you credit

After a few rounds this line will stop, because your finances don't look good enough for further investing.

Now you set your stock price at a massively exaggerated validation and use financial engineering to somewhat stabilize it at that price point (NASDAQ + index funds + low stock availability) Suddenly your bank will let you borrow again against your stocks you own.

That's basically the reason why the stocks are actually liquid for anyone truly wealthy. It's only retail investors who cannot quickly convert it to cash

This is effectively an increase in interest rates for SpaceX. That's how it affects them

Companies need to raise money for investment. Even Apple doesn’t have cash for all the things they want to do. Suppose they want to lease or buy a piece of real estate.

It makes borrowing money much more expensive going forward.

The losses fall on bondholders now, but it does make it harder for SpaceX to raise money going forward. And if they actually slip into junk territory, some institutional investors will be forced to sell (mandates only allow investment-grade), pushing prices down and yields/spreads up even further.

That can snowball: wider spreads → higher borrowing costs → more stress → wider spreads. The existing bonds' coupons are fixed, so the real bite is on future issuance and refinancing.

Lots of capital-intensive companies (SpaceX is definitely in this category) lean heavily on debt markets to fund ongoing investment and roll over maturing debt, so losing cheap access is a big deal.