Alameda's bets went bad in the crypto crash earlier in the year. FTX loaned it up to $10bn in customer deposits against trumped-up collateral (its own token). Somehow, Alameda must have lost most of that money, either by using it to cover its liabilities from the crash, or making more bad bets. When it was leaked to Coin Desk that Alameda's balance sheet was padded with FTX tokens, confidence in the token rapidly collapsed. That obliterated the collateral protecting FTX's loans, ripping open a ~$10bn hole in its finances.
Alameda's bets went bad in the crypto crash earlier in the year. FTX loaned it up to $10bn in customer deposits against trumped-up collateral (its own token). Somehow, Alameda must have lost most of that money, either by using it to cover its liabilities from the crash, or making more bad bets. When it was leaked to Coin Desk that Alameda's balance sheet was padded with FTX tokens, confidence in the token rapidly collapsed. That obliterated the collateral protecting FTX's loans, ripping open a ~$10bn hole in its finances.