Earnings aren’t the stock-market guide you might think, says Laszlo Birinyi By: MarketWatch August 17, 2017 at 14:25 PM EDT It has been an impressive second-quarter earnings season, but results have rarely been the “primary” performance driver. Read More >> Related Stocks: AT&T Inc Boeing Co Bristol-Myers Squibb Capital One Financial Caterpillar International Business Machines Lockheed Martin NVIDIA Corp Netflix Ralph Lauren Corp Standard & Poors 500 United Parcel Service