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发表于 2011-6-30 01:40 AM
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lite1067 发表于 2011-6-30 00:19 
老大,S&P500 中间dividend paying companies are limited and with fixed dividend paying schedule. ...
Estimated number can never be fixed, there will always distributions, means & deviations.
Honestly I don't think there is a risk-free arbitrage opportunity for equity index. And if any institution is doing that way, they definitely are doing that for risk-free. |
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