AMEX:XBI   SPDR Series Trust SPDR S&P Biotech ETF
Positive reason for XBI - relatively equal weighted @ 1% - can not know which bio is going to be a winner!
Like the 30 week moving average as an indicator.
Thesis is as rates fall Bios will be more attractive!
Supply of new drugs in big pharma is dwindling/ coming off patent and they need to replace with new drugs for revenue; so Big Parma will be looking to acquire some of the potential winners - AKA MDGL
交易开始:
Still cruising sideways as rates got another boost!

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