Stocks Mixed on Friday to End Another Volatile Week, China cut its Benchmark Reference Rate for Mortgages by an Unexpectedly Wide Margin, Saudi Aramco Net Profit Soars 82% in Q1 on High Oil Prices, Wheat Prices Surge to 2-Month High due to India Export Ban, Retail Sales Rise Slightly in April, Walmart Reports Disappointing Q1 Earnings, Home Depot Narrowly Beats on Earnings, Deere Surpasses Earnings Estimate and Revenue Estimate in Q2 Earnings Report, 9. Former Fed Chair Ben Bernanke said the Central Bank was Wrong in Waiting to Address Inflation and 85% of S&P 500 Companies are citing