BITCOIN FOR DUMMIES

??Options are fundamentally a leveraged placement,??Leon reported. ?�When you will find big concentrated positions at a selected rate and expiration, and those come into expiration, then that may induce liquidation spikes.?????�머지 ?�금?��? ?�래??종이 지갑에 ?�아 ?��? ?�게 ?�니?????�런 ?�해 ?�문???�용?