The Globe and Mail reports in its Wednesday edition that the S&P 500, Nasdaq and S&P/TSX Composite Index all closed higher on Tuesday after a topsy-turvy day dominated by investor angst ahead of the impending tariff announcements from the Trump administration. A Reuters dispatch to The Globe says that financial markets have been volatile in recent weeks as investors assessed the economic fallout of U.S. President Donald Trump's extensive tariff plans, which have sparked worries about a U.S. economic slowdown and higher inflation. Mr. Trump unveils his tariff plan today during an event in the Rose Garden, scheduled for 4 p.m. ET. However, while clarity on the specific tariff measures will be welcomed by investors, the overall backdrop is set to remain highly uncertain, making it difficult for markets to agree on directionality. The S&P/TSX composite closed at 25,033.28, up 115.78, adding to Monday's 158.35-point increase. Energy was up 0.7 per cent, while utilities added 0.8 per cent as long-term borrowing costs fell. Bond yields declined after data showed that Canadian manufacturing contracted at a steeper rate in March. Rogers shares dropped 5.9 per cent to the lowest level since June, 2012.