Adviser Investments Vice President Chris Hagan has the market analysis for Thursday, August 1. All major U.S. stockA financial instrument giving the holder a proportion of the ownership and earnings of a company. indexes declined after one of the most volatile trading days of 2019. The Dow Jones Industrial Average, S&P 500 and NASDAQ Composite fell 1.0%, 0.9%, 0.8%, respectively. In addition to discouraging manufacturing and construction spending data, investors also responded to President Trump’s announcement for an additional 10% of tariffs on $300 billion of Chinese imports. Benchmark 10-year Treasury yieldsYield is a measure of the income on an investment in relation to the price. There are several ways to measure yield. The current yield of a security is the income over the past year (either dividends or coupon payments) divided by the current price. fell to a nearly three-year low. Oil prices also fell nearly 8%, marking the largest single-day decline since early 2015. Meanwhile, Pinterest’s stock jumped 14% in after-hours trading after second-quarter revenue shot up by 62%.