Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Understanding the T + 3 settlement days rule
For margin, it is correct that these rules do not apply.  The real problem becomes day trading funding when one is just starting out, broker specific minimums. Options settle in T+1. One thing to note: if Canada is anything like the US, US options may not be available within Canadian borders.  Foreign derivatives are usually not traded in the US because of registration costs.  However, there may be an exception for US-Canadian trade because one can trade Canadian equities directly within US borders.