From the FAQ it would appear that they are backed by Andreesen Horowitz and Google (Ventures?) amongst others so cash burn may be ok for a while. Its spot on t

From the FAQ it would appear that they are backed by Andreesen Horowitz and Google (Ventures?) amongst others so cash burn may be ok for a while. Its spot on that High Frequency traders pay nothing beyond regulatory fees (or get money back) to trade as they provide (theoretically) market liquidity. Not sure you can extend that argument to individual investors unless they scale massively, but the technology for trading isn't terribly complex. One wrinkle is in less liquid names, where their algorithms will likely lag those of larger brokers for a while.