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 UID223459 帖子302 主题9 注册时间2011-7-11 最后登录2014-8-4 
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| as far as i have read....call deltas are positive that is frm 0 to 1 as d stock price increases and put deltas are negative that is frm -1 to 0 as the stock price increases cause call deltas are positively related to stock price..and put deltas are negatively related to stock price.. 
 as far as gamma goes...long calls n long puts have positive gammas and short calls n puts will have negative gammas...
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