The Message From Up/Down Volume

 | Sep 18, 2018 01:00PM ET

h2 Dot-Com Bust Bear Market

When the S&P 500 reached a bull/bear tipping point in March 2000, NYSE Advancing - Declining Volume was already waving yellow flags. As shown in the chart below, NYUD was hugging its 50-week moving average and the 50-week was rolling over in a bearish manner.