The news of Scotiabank analyst Michael Doumet assuming coverage of GFL Environmental with a Sector Outperform rating and a price target of $58 is positive for the company. This rating indicates that the analyst believes GFL will outperform its sector peers in the short term. The price target of $58 also suggests potential upside for the stock. As a result, this news is likely to have a positive short-term impact on GFL's stock price.