Comment by killerstorm

That's not how money works. It's not an asset which is subject to conservation of matter like gold.

Banks make money by giving out loans is a meme, but it's actually true here. You kind of need collateral to do that, but a stock of a company which has revenue is a perfectly cromulent collateral even by strict standards. It's not even some infinite money glitch - it's kinda how the whole system is supposed to work.

The stock market is largely about betting on expectations of future value while money is just a token which is used to settle things. E.g. if you think about simplified mechanics of IPO, say, investor Alice buys OpenAI shares, OpenAI gets the money and Alice has shares. If for simplicity we assume that Alice and OpenAI use same bank and there are no intermediaries, then it literally just updates two cells in a database. And Alice now has shares which is an asset of known value, thus can be borrowed against, etc. Also, say, OpenAI can use that money to repay debt, then perhaps lender would buy SpaceX stocks - it's not like money was withdrawn from the system.

Of course, there can be some interference: multiple companies do IPO around same time it would reduce FOMO, and if they did it literally in one day there might be lack of liquidity.