Stocks Mixed on Lower Bond Yields and Chip Stock Weakness

Stocks Mixed on Lower Bond Yields and Chip Stock Weakness Rich Asplund Wed, August 19, 2026 at 10:13 AM EDT 7 min read The S&P 500 Index ($SPX) (SPY) is up by +0.33% today, the Dow Jones Industrial Average ($DOWI) (DIA) is up by +0.47%, and the Nasdaq 100 Index ($IUXX) (QQQ) is down by -0.33%. E-mini S&P futures (ESU26) are up +0.31%, and September E-mini Nasdaq futures (NQU26) are down -0.39%. Stock indices are mixed today, with the Nasdaq 100 falling to a 1.5-week low. The broader market is supported today by lower US bond yields. The 10-year T-note yield dropped -6 bp to 4.64% today after the US Treasury announced that it will boost liquidity and double the size of buybacks for longer-dated nominal coupon securities to at least $4 billion. However, weakness in chipmaker and AI-infrastructure stocks continued today, weighing on the Nasdaq 100. More News from Barchart Barron Trump, 20, Now Worth $150 Million — More Than Mom, Melania — From Crypto And $39 Energy Drink Billionaire Michael Saylor Warns Against Buying a House Because 'Every 36 Years You Actually Pay the Cost of the House in Tax to the Government' QQQ Just 'Gamma Flipped' as Market Makers Were Forced to Sell. Here's What Our Top Chart Expert is Tracking Next. Get exclusive insights with the FREE Barchart Brief newsletter. Subscribe now for quick, incisive midday market analysis you won't find anywhere else. Also, on the positive side for stocks, Moderna is up more than +110% after announcing a positive result fro…