Summary: the system is statistically realistic, but we need to think about the commission(if guess on B immediately after PPP) as well as volatility.  Activity b?n cá ??i th??ng ?ã tr? thành m?t trong nh?ng th? lo?i sport tr?c tuy?n ph? bi?n nh?t hi?n nay. V?i c? ch? ch?i ??n gi?n, giao di?n b?t m?t và kh? n?ng ??i th??ng h?p d?n, các Sport n