50 ETFShort
50ETF多周期结构嵌套
先测试两个变种0.618AB=CD和看跌螃蟹还有大周期看跌鲨鱼0.886XA汇聚的的PRZ，如果突破再测试两个AB=CD和大周期看跌鲨鱼1.13XA汇聚的PRZ。在这个时间内，目前短期趋势还是向上的。
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