Stocks never move up in a straight line. One reason is profit-taking. In a bull market like this, that’s a bit rare. But other events can also temporarily weigh on a stock’s long-term uptrend. One big event is a regulatory warning. While big tech names sometimes take a one-day dive as some agency announces a record fine, or even a bank, which have collectively paid billions in fines, big pharma is the latest industry to come under fire as well. ConsiderAbbVie (ABBV), a company that the FDA issued a warning against last week on one of its key arthritis drugs. Shares shed nearly 10 per...
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