View: Margin-debt-Wilshirre-5000-2021.jpg (640×339)

Put that margin on y tab, will ya, barkeep........ 4/18/21

With long stocks on margin, even a small flash crash where the liquidity dries up can blow up an account in no time.  
Not to talk about brokers blowing up when customers default en masse. Remember GME? Trading was halted because brokers were afraid to go belly up. 4/18/21