Can different brokers have different haircut as per their choice?

[t7support]

Brokers can charge more but never less than the haircut % stipulated by the exchange. Currently liquidbees haircut is 10% in exchange published file.

Collateral Margin Nitty-Gritty

Hi, You have this almost 900+ list of instruments against which you provide collateral margin after haircut. I had few questions around this - How is the haircut decided? What formula do you use to come up with the haircut? How often is this list updated? Can it change at any point in time? I understand MTM changes to collateral margin with daily price move. But do changes to haircut affect collateral margin even after a particular stock is pledged at a different haircut? In short, if I have …