After several days of profits, the US stock exchanges have given way

After several days of profitability with mostly small surcharges in the indices and the 51st record high of the S&P 500 in the current year, the US stock exchanges have given way. Tomorrow, Friday, US Federal Reserve President Jerome Powell's appearance at the virtual central bank meeting in Jackson Hole caused restraint. In addition, developments in Afghanistan were frightening, where dozens of people were killed in a series of attacks at Kabul airport, including several US soldiers. New US economic data hardly moved, both the number of weekly initial jobless claims fell in line with expectations, as did the second reading of US GDP growth in the second quarter with a plus of 6.6 percent. In the end, the Dow Jones index fell by 0.5 percent to 35,213 points and, like the other indices, closed just above the daily low. The broader S&P 500 and the technology-based Nasdaq composite both fell similarly. The majority of Powell's speech is not yet expected to announce a tighter monetary policy, which is unfavorable for the stock market, in the form of a reduction in monthly security purchases (tapering). However, because this has not been agreed, some actors have tended to take profits. Economists are more likely to expect taper signals in September or October. The economic data are good, but the momentum is slacking off and fears of inflation have not increased, commented Paolo Zanghieri, economist at Generali Investments, on the prevailing expectations. On the stock market, Salesforce.com rose 2.7 percent to $ 267.79 and was the clear leader in the Dow Jones index. The company had significantly exceeded expectations with its figures for the second quarter. The SAP competitor also raised its outlook. Canaccord Genuity then raised its target price from $ 270 to $ 305. Snowflake gained 7.6 percent. The company, which also specializes in cloud computing, had more than doubled its sales.