The Dow Jones Industrial Average’s (^DJI) worst daily plunge of the year sparked a split among market strategists on whether Friday was a good buying opportunity.  The index closed down more than 900 points, while the broader S&P 500 (^GSPC) average declined 2.27{21df340e03e388cc75c411746d1a214f72c176b221768b7ada42b4d751988996}. Energy, financials and industrial stocks led the […]