Pharmacies take a $10 billion hit as Amazon lands Whole Foods deal (CVS)

Amazon is buying Whole Foods for $13.7 billion, and pharmacy stocks are feeling the heat. 
The pharmaceutical supply chain is down by a total market cap of $10 billion, according to UBS.
In addition to the grocery stores whose stocks have been getting clobbered on the news, here are the drug industry companies that are also taking a hit. 
CVS, which owns pharmacies as well as operates a pharmacy benefit manager was down roughly 5%.
Walgreens was also down 5%.
The news also hit drug&nbs