Stocks Retrace From a Bull Run

Stock indexes have been moving steadily higher in recent weeks on a bull run by climbing the proverbial "wall of worry". However, the daily chart on the left here shows that stock prices haven't risen that much over the past two weeks, and the Bollinger Bands are suggesting a trading range and resistance at the 200 day moving average. Today, shown by the intra-day chart on the right, stocks are showing some selling volume.