Charting a bullish technical tilt: Nasdaq tags the 6,000 mark, Dow 21,000 under siege

The major U.S. benchmarks have taken flight as April nears a conclusion, staging decisive, and likely consequential, technical breakouts. On a headline basis, the Nasdaq Composite has extended its break to uncharted territory — tagging the 6,000 mark — while the S&P 500 and Dow industrials have knifed atop trendline resistance.