看了半天, 樓主的重點都沒抓住,

賣100 個HOOD Put contracts, strike price: $105
你需要帳戶有多少cash在帳戶裏嗎, 否則broker都不讓你這麽操作.
100 contracts =100*100=10000 股, how much cash you need in the account = 105*10000=105 萬 美刀
你必需有105萬cash(閑錢)在帳戶裏, Broker才讓你這麽一筆操作.