點會賣唔到,bid price 就係market maker 會同你買嘅價錢
不過有啲股票流通量太低
你用bid price 開咗個賣order
MM 就會將你個價變成中間價,再將個BID 同 ASK 價降低
如果咁你可以慢慢逐級降低個賣價試,去到某個位總會賣出到個long option
題外話,有時有啲credit spread 好價外
spread個value 已經係0
但你會平唔到倉
原因係個long leg 太遠太低價值冇人接
如果你真係好需要平倉拎返個buying power
解決方法係唔好成個spread 平倉
淨係平個short leg,用最低價值,例如spx 就0.05
咁就會平到
個long 由佢expire,唔影響buying power
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