Wall Street's main indexes opened higher on Monday following heavy losses last week, as investors remained optimistic about soft landing prospects for the U.S. economy ahead of a crucial inflation report later in the week. The Dow Jones Industrial Average rose 209.7 points, or 0.52%, at the open to 40555.11. The S&P 500 rose 33.6 points, or 0.62%, at the open to 5442.07.