Based on the automatic evaluation of the global economic calendar we can see an improvement in the Canadian (left fig.) and US economic activity. Based on technical analysis we have buy signals. S&P 500 is at all times high and all sectors from it have buy ratings. One of the sectors with maximum rating is Materials (middle fig.). It is now at all times closing high. One of the companies from this sector is Sigma-Aldrich Corporation presented in the right figure. It is also at all times closing high being a good buy opportunity.