Markets on Wall Street retreated at the start of today's session as President Trump returns from his tour around Asia, with investors awaiting this week's update on the progress of proposed tax reforms while keeping an eye on the European Central Bank conference in Frankfurt.
Shortly after the open, the Dow was down 0.28% at 23,373.94, the S&P 500 by 0.31% at 2,576.85 and the Nasdaq also down 0.31% at 6,736.8.
Markets in Europe were mixed. The FTSE 100 was up by 0.08% during afternoon trading, while the DAX was off by 0.33% and the CAC 40 by 0.49%.
WTI crude oil was 0.39% lower at $56.54 a barrel and Brent was down 0.33% at $62.95.
Gold was 0.52% weaker at $1,272.3 an ounce and silver was eased by 0.69%.
Copper was also lower, falling by 0.34%.
The US National Federation of Independent Business (NFIB) has reported that the Index of Small Business Optimism rose to 103.8 in October, up from 103 the previous month.
The Producer Price Index increased 0.4% in October, seasonally adjusted, the US Bureau of Labor Statistics said today. The Producer Price Index less foods, energy and trade services - the so-called core PPI - rose by 0.2%.