Negative breadth after a consolidation day may have just confirmed the downtrend that started on Monday Nov 9th.
Markets dropped immediately off open, and rallied back midday, the Nasdaq actually making a new intraday high, the only index to do so, but later failed and closed back at lows.
Down volume in Nasdaq stocks was the standout in terms of breadth, despite Nasdaq making a higher intraday high breaking the Globex session highs. A very unusual occurrence and was led by only a small group of high flyer stocks such as AAPL and AMZN.
Downtrend will confirm today with lower highs and lower lows than prior session, otherwise a stay of execution in markets is at hand for another day.