Every platform is different, and there is one platform that interests you. An account with 50 times leverage of FXCM will earn interest in some cases, and Jiasheng and MG can also earn interest after meeting certain conditions of standard accounts.

Besides, the one upstairs is wrong. The interest for two days on weekends is paid on Wednesday night, so the interest for holding positions overnight on Wednesday is three times. I've worked on several platforms, and I haven't seen anyone settle the weekend interest on Friday.

Whether the interest is positive or negative depends on the interest difference between the two currencies. It's not that you only give more or less, you may give more or less.