Triumvirate of big round numbers dominates market By: CNBC.com News November 18, 2013 at 09:55 AM EST The season of big round numbers--as in, 16,000 on the Dow, 1,800 on the S&P 500 and 4,000 on the NASDAQ--is upon us. Are we overbought at these levels? Read More >> Related Stocks: Boeing Co Mosaic Co Potash Corporation of Saskatchewan