Earlier quoted context omitted.
Prediction markets? https://polymarket.com/event/openai-ipo-closing-market-cap
Im not sure I like that market in particular, but probably polymarket is indeed the best one… assuming the market will resolve fairly
I've never used polymarket, I just wanted to mention prediction markets as an option in general.
The particular bet I linked to is probably a bad idea though, because there is a causal link between OpenAI doing well and deciding to go public. So this is not the way to bet on it crashing and burning.