NEW YORK, Aug. 27 -- The Nasdaq Composite finished Tuesday at 19,847.31, its fourth consecutive session of below-average absolute daily range, as the market carved out a pre-event holding pattern before NVIDIA's earnings Wednesday evening. The composite's 0.8% decline was orderly - measured in low volatility, moderate breadth, and elevated institutional volumes that pointed to repositioning rather than liquidation.

The Composite contains approximately 3,300 companies, ranging from NVIDIA at a $5.1 trillion market capitalization to micro-cap biotech firms. As a result, the Composite's breadth gives a more honest picture of underlying market health than the Nasdaq 100 alone. Tuesday's breadth reading: approximately 1,820 advancing issues v...