道琼斯指数7月18日（周五）收盘下跌142.30点，跌幅0.32%，报44342.19点；标普500指数7月18日（周五）收盘下跌0.57点，跌幅0.01%，报6296.79点；纳斯达克综合指数7月18日（周五）收盘上涨10.01点，涨幅0.05%，报20895.66点。

Core Points - The Dow Jones Industrial Average closed down by 142.30 points, a decrease of 0.32%, ending at 44,342.19 points [1] - The S&P 500 index closed down by 0.57 points, a slight decrease of 0.01%, finishing at 6,296.79 points [1] - The Nasdaq Composite index closed up by 10.01 points, an increase of 0.05%, ending at 20,895.66 points [1]