Adviser Investments’ Chief Investment Officer Jim Lowell has the market analysis for Thursday, March 21. All major U.S. market indexes advanced: The Dow Jones Industrial Average, S&P 500 and NASDAQ gained 0.8%, 1.1% and 1.4%, respectively. Today’s market rebound reflects investor optimism after Federal Reserve Chair Jerome Powell’s news conference. Overseas, the European Union approved Prime Minister Theresa May’s request to extend the Brexit deadline through May 22. The extension is conditional upon a House of Commons vote in favor of existing Brexit terms, and British Parliament previously rejected the plan on two separate occasions.