Earnings should grab attention, but watch commodities By: CNBC.com News July 17, 2015 at 17:36 PM EDT About a quarter of all S&P 500 companies will report earnings in the coming week, which could be positive for stocks as Greece and China fears wane. Read More >> Related Stocks: Amazon.com American Express Apple Boeing Co Coca-Cola Company General Motors International Business Machines Morgan Stanley Sentinelone Inc Cl A