A single gamble in a liquid stock has an expected cost of 0.2%-1.0% of the notional value, due to crossing the bid-ask spread twice, which is smaller than casin

A single gamble in a liquid stock has an expected cost of 0.2%-1.0% of the notional value, due to crossing the bid-ask spread twice, which is smaller than casino margins. So it is better in terms of expected costs if we're comparing 1 daytrade gamble with 1 casino gamble.