Wednesday, July 21 is another busy day on Wall Street. TheStreet outlines the key earnings reports and some economic data to watch. On the earnings front, the notable companies releasing their latest quarterly earnings include soda maker The Coca-Cola Co. (KO), The Boeing Co, (BA), cloud computing provider EMC Corp (EMC), chipmaker Qualcomm Inc (QCOM), American Express Co (AXP), and casino operator Las Vegas Sands Corp (LVS). On the economic calendar we note key data including the MBA mortgage applications, the FHFA house price index, existing home sales, and the weekly EIA petroleum status report. TheStreet's Kurumi Fukushima reports in New York.