Yesterday, market activity during the North American trading session was Yesterday, market activity during the North American trading session was down due to the Presidents' Day celebration in the USA. The broad market index S&P 500 broad market index did not show any significant dynamics. However, it is worth noting the fact the fact that quotes are holding near the maximum and are in a narrow range. At the same time, the strengthening of the U.S. dollar did not provoke a decline in quotations. This indicates the strength of the stock market of the United States. At least, at the current moment. Nevertheless, investors and traders need to be cautious when making trading decisions due to the high level of overall of uncertainty in the coming days.