I'd be interested to see your rates for margin if you do decide to offer margin.
I don't use the margin to get more market exposure. I treat it as a lower APR credit card with a sizable credit limit. Interactive Brokers will charge me 6% instead of 20+% of a typical credit card. I don't use it much, but I like having it. I don't know if it makes business sense to offer lower margin rates than IBKR to retail customers, but I'd be interested. Before someone lectures me: I consider 10% of my holdings to be my "credit limit".
I don't use the margin to get more market exposure. I treat it as a lower APR credit card with a sizable credit limit. Interactive Brokers will charge me 6% instead of 20+% of a typical credit card. I don't use it much, but I like having it. I don't know if it makes business sense to offer lower margin rates than IBKR to retail customers, but I'd be interested. Before someone lectures me: I consider 10% of my holdings to be my "credit limit".