I asked my fellow broker Joe Easton on his take:
My understanding is 10 MES vs 1 ES is a viable spread recognized by the exchange. The margin is $0 according to our margin calculator on E-Futures. When trading futures you want to trade less and hold for longer. This allows the market and leverage to work for you, while not allowing the commissions and choppiness to sabotage you. Often trends last 2-3 days and an excellent entry is imperative to hold through the retraces. If you have an excellent entry and do not have the initial margin... using the micros to offset your risk through the close is a great way to keep the ES entry price multiple days. If you do have the margin and there has been a significant move in your direction, you can hedge some of the profits using micro lots at points you expect counter trend move
Hi How abt the margin requirement in case of the below
1ES future Long
1ES atm put Long
1. What will be the margin requirement for carried forward trade in the above scenario .assume atm put option fully paid .
2. At the end of the day , Do margin requirement need to be meet for unrealised loss in case ES going down .(remember)put option exists to offset any loss in ES . Is still margin required ?