[Iv]

It won't be insanely wide, it will be on par with the intra-day variations. What they may make a seller lose are on par with what they would lose by taking a few hours to think about their decisions.

> If any other venue is providing pricing updates a venue that is halted, or somehow contributing to a delay in pricing updates, is going to be left behind.

My suspicion is that some companies would prefer to only have investors instead of speculators. I suspect that a SE with such rules would favor long term investments over short term profits.