"For the financial year to 31 December 2020, tastytrade...

"For the financial year to 31 December 2020, tastytrade delivered revenue of $116.2 million"

This would be the most significant difference.

Compared to Selfwealth having $4.5m AUD ($3.5m USD) revenue in the past quarter (which should be up in March).


"According to the tastytrade network website, they promote various formulas. One formula, per their own website, is to sell the 16 delta of the call and put 45 days to expiration (DTE) when IV Rank is from 50% to 100%."

So I think they make a lot of money from options, compared to Australian share investors, who are less profitable than options traders.