BITCOIN - AN OVERVIEW

??Options are basically a leveraged place,??Leon stated. ?�When you will find large concentrated positions at a specific rate and expiration, and those come into expiration, then that will bring about liquidation spikes.?????�머지 ?�금?��? ?�래??종이 지갑에 ?�아 ?��? ?�게 ?�니?????�런 ?�해 ?�문???�용?�