DOW的下一个阻力在8500点，由于有了支持,Call和Put都可赚钱。比如我买了BAC的CALL($7),同时买了JPM的PUT($28).今天卖了BAC的CALL，明天再卖JPM的PUT. JPM的CDS和CDO比美国银行还多，BAC都不行了，JPM好到哪里？/p>
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