Volatility continues to increase in the stock market and many of the leaders are breaking down. In particular, semiconductors took a rather big hit when one of the bellwethers warned of weakening global demand. Nevertheless, despite the significant headwinds, I do not think this spells the end of the bull market. But the technical damage to the charts is severe, particularly to the small caps, which are in full-blown correction mode. The large caps must show leadership and rally immediately -- or it will put at risk the critical and widely-anticipated year-end rally. Read more about Sector Detector: Semiconductors get slammed as investors scramble to protect profits