It's a trove of information for portfolio managers and macro-watchers to gauge, and trade policy news headlines are likely to continue breaking. On July 9, President Trump announced a surprise 50% levy on copper imports, followed by a steep 50% duty on Brazil. 1 Together, it put the materials sector in focus.

President Donald Trump in recent days slapped tariffs as high as 50% on dozens of countries, restoring the type of aggressive trade policy that sent stocks plummeting a few months ago. The new round of levies prompted little more than a shrug on Wall Street.