Thinking about buying or selling BlackBerry Ltd, Costco, General Electric, Oasis Petroleum or Tesla Motors?

CHICAGO, Dec. 14, 2017 /PRNewswire/ -- InvestorsObserver issues critical PriceWatch Alerts for BB, COST, GE, OAS, and TSLA.

To see either high-return covered call trades uncovered by our analysts or how InvestorsObserver's proprietary scoring system rates these stocks, view the InvestorsObserver's PriceWatch Alert by selecting the corresponding link.

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SOURCE InvestorsObserver