可用在你已经决定用现价买正股（比如说670买入LITE），用synthetic可以做到把现金放入国债。但风险要比卖葡萄大

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• 嗯，显然。这是放大了delta。在大跌时会大亏，但大涨时就消除了有人说的卖put不如买正股划算的顾虑 -opst- ♂ (82 bytes) () 05/03/2026 postreply 19:26:07

• Synthetic almost same as buying shares outright, 但不用立刻花现金 -三心三意- ♂ (0 bytes) () 05/03/2026 postreply 19:29:34

• correct, the key is, you need 67K for 100 LITE -pega- ♀ (69 bytes) () 05/03/2026 postreply 20:52:24