l hear that IB HKG allows you portfolio margin, whereas in UK you'd have to have well over 80K USD. advantage or disadvantages? thanks
In the US and U.K. it is $100k or other currency equivalent or stock. In HK it appears to be $2000. https://ibkr.info/tag/margin
PM is risk based margin. It does not mean you have to take excessive risk and in fact it makes it more efficient to hedge. Why do you feel that PM is to be avoided as a general statement?
There are many misconceptions on ET, e.g. payment for order is a negative for retail traders. It is actually a win-win situation for wall street firms and retail traders.
My comment was on PMA not PFOF. I'll keep my opinions about PFOF and fragmented markets to myself for now.
Portfolio margin like Reg T margin are US concepts. By default we provide position based risk margin in HK which is pretty similar to PM.
There are now 12,163 IB customers needing help here https://www.reddit.com/r/interactivebrokers/ and no sign of an IB rep.