Credit Spreads Risk
Im having trouble understanding the risk on a bull put spread. I though they were defined hard capped risk. Because for example I sell a 170 put and buy a 165 put. On wealthsimple which im using it requires a margin account. I thought risk was defined. What if price is trading at 167 and i get assigned and my long put is not in the money. Everything expires and Im left 17K in debt. Is this possible or am I missing something?