Comment by cherryteastain

There are also large trading/market making firms providing liquidity, especially on markets associated with up/down bets on crypto, stocks etc. They use all the options trading machinery they've already built for more 'respectable' venues like CME/Eurex etc, further squeezing the margins for retail traders.

They're active on bets that are even considered "meme" bets. Example: Jesus returning in 2026 - If you can get a loan at 4% as a big well respected trading firm and plonk it on Jesus not returning at 94 cents, you're making ca. 2% for 'free'. (Unless Jesus returns, in which case you have bigger problems than your portfolio pnl).