$0 commissions are huge, and allow people to (Along with partial stock buys) invest little amounts on a recurring basis. Robinhood forced the major brokers to

$0 commissions are huge, and allow people to (Along with partial stock buys) invest little amounts on a recurring basis. Robinhood forced the major brokers to do $0 stock trades, just need a few others to do $0 option trades too. The fees aren't crazy, but they add up if you do lots of spreads.