I'd have to do a simulation to confirm that. I don't short so the calculation gymnastics isn't on my radar.
Yeah, I see what's going on under the hood. Basically, he wants to HEDGE his long. I often do something similar with ES and NQ. I would go long ES and when I make enough, instead of selling outright, I would short NQ. But why would you wanna do that with the same instrument? The two gets cancelled out (eg. long and short simultaneously) and all you're doing is paying extra commissions for no obvious benefit.
STFU, plenty individuals helped you yet you can't inconvenience yourself to post a public response? And don't tell us it's a secret profitable approach to trading. It's not. It's pure stupidity and lack of understanding the basics of netting positions.
Thanks but there's really no need since you won't find any brokers that will allow you to hold both long and short positions at the same time. Even CFDs bar holding both long and short simultaneously. However, from what I've found on the web, this is possible on Bitcoin exchanges, such as Binance.