I wanted to ask if traders keep a long position open for over weeks and months? If yes are they paying many fees? With which option it is the best to open a position which you may want to keep open for a very long time?
Opening long term futures positions is not something I would advice you to do. Crypto market is so volatile and you could still get liquidated at one point however low your leverage is.
Funding fees which are usually charged every 8 hours will also eat up your profits in the long run
If you want to trade futures and make some sensible profits. Be ready to be a day trader. I should warn you that it isn't easy though.
I heard to use the option "post only". But I am not an advanced leverage trader so i would be very thankful for some insights and tips.
Post only helps if you want to make a limit order but market price keeps moving up and down each second past your limit order. If post only is not activated, and you try to open a limit order when the market price has moved past your intended price, the order will immediately get filled as though it was a market order.
If Post only is activate. It means that the limit order will only be posted in the orderbook. if the market price goes past the limit price you intended to place in the orderbook. the order will be cancelled immediately and you will have to place the limit order all over again until you get your desired limit price.
If i go with the option isolated then in the case of liquidation only my initial margin will be lost right?
Yes only you initial margin in the open position will get liquidated