I don't know, but I can't see very many good side-effects, though can think of some negative ones. The first thing I would think is that participants would gra

I don't know, but I can't see very many good side-effects, though can think of some negative ones. The first thing I would think is that participants would gravitate towards trading where the SIP is to avoid transit latency, reducing competition for those exchanges that run their own data center and SIP. Also, I'd imagine that there would be a greater risk of getting run over, so spreads would widen to account for it.