Quote from MoreLeverage:
What are your thoughts on exchanges giving structural advantages to certain groups - DMMs, floor brokers, super high rebate tiers, naked short selling exceptions, etc? How much to do you think these things help for HFT compared to a startup HFT shop without any of those advantages?
Do you know what level you need to go entirely self-clearing for US equities and avoid all the per share fees?
I strongly feel that structural advantages are fine they are open to anyone having to meet certain obligations to obtain them. For instance, if anyone is allowed to obtain DMM status if they agree to quote X ticks wide for Y% of the time, in return for lower fees, I'm fine with that.
It's when exchanges have some closed-off advantages that I have a real problem with. For instance, we had a case where an exchange offered a fast beta system access for some period of time (it was short, like a week or 2), but only limited access to a few members for the beta testing period. You can see how that's unfair.
It does create a barrier of entry for HFT startups. The systems can be improved, but there will always be sources of irregularities when you have such a fragmented, global industry.
I don't know too much about the break-even level for self-clearing equities. Doing a quick search, seems like others on this forum might have more thoughts on it than I do.
But, to make a blanket statement that being a PhD means he is bound to blow up sooner or later is pure nonsense.