Open orders 3550, 3870, received at 3870, BTC also received, thought it was a dream order in a short time, unexpectedly received so quickly, closed half, the rest will depend on the market maker's performance, earning probability really high when entering a position once a month, went around, new suckers really can't be cut off, hope you can refrain from trading contracts, otherwise a bottomless abyss awaits you, if you must play, remember not to frequently enter a position, start with a small amount of capital, stop loss after two orders then stop entering positions, minimizing losses is a gain, the biggest risk in investment is not knowing what you are doing, first, always remember one thing, protect your principal, second, keep the first rule in mind. The third rule is to listen to advice.