Traders continue to grapple with economic, interest rate and geopolitical concerns.
Stocks cling to higher levels while fixed-income securities slide.
Stocks continue to drift higher amid dearth of selling and low volatility.
Storms could cloud traders' appetites and FOMC rate hike resolve.
Traders on hold until major economic data can lend guidance.
Multiple factors keep a lid on late-summer trading.
August brings more senior level changes on the sell side.
Traders say the Fed has limited ability to raise interest rates now.