利息收入不大一样.

来源: putwriter 于 2005-12-23 09:39:34 [] [旧帖] [给我悄悄话] 阅读数 : (236 bytes)
回答: Let me explain why it is equivalent to a short put 由 burrito 于 2005-12-23 08:49:21

covered call比naked put多收利息. 这个利息是市场家,例如4%/year. 卖put省下赖的cash在券商那只能拿到他给的money market fund的利息, 大致算2%/year. 相差2%/year.

另外需要考虑的实际问题有assignment/exercise费用, margin requirements, etc.

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