????????, ???????? ?? ???-??????, ???????, ?????? ??? ?? ???????????? ???? ???-???? ? ????????????? ????, ????????? ???? ????????? ????? ??????????? ?????.?????????? ???? ???????? ? ?????????? ??????. ???? ?? ?????????? ???? ?? ????????, ????????? ????????, ?????? ??? ????????? ???.Margin Buying and selling: The exchange provides margin investing