Quote from kotika:
It is important to keep some nonzero tick size, small enough to not be economically significant. This is so that people cannot jump in front by offering a tiny bit better price. There are rules in place which have to do with time-priority of limit orders, and these are very important.
Quote from guy2:
I agree that it would be frustrating if you had been bid at 1230.00 for 2 hours and someone came in and bid at 1230.01 and got filled immediately.
Quote from guy2:
I agree that it would be frustrating if you had been bid at 1230.00 for 2 hours and someone came in and bid at 1230.01 and got filled immediately.
Quote from kotika:
There is nothing mysterious. Floor traders and firms holding seats on the exchange are the ones to decide. If tick size was 0.1 noone would use the pit, and all these people be out of job.
Altogether different question is, who would win and who would lose if both ES and SP were 0.25 or both were 0.1. some people suggest scalpers would benefit, but I am not sure.
Quote from Remiraz:
bid 1230.01 then.![]()