I think with enough features added to increase LTV, SWF can eventually begin to shift trading cost down from $9.50 - although I definitely don't see this happening in the near future.
E.g. new markets (FTSE, DAX, SGX, etc), options trading (particularly for US), margin lending (probably unlikely), stock lending (similar to Stake), IPOs, etc. All of these things likely would increase LTV for users.
Also, just generally increased scale (more users and more client cash).
SWF Price at posting:
17.5¢ Sentiment: Buy Disclosure: Held
A personalised tool to help users track selected stocks. Delivering real-time notifications on price updates, announcements, and performance stats on each to help make informed investment decisions.