All three U.S. indices have been soaring for the last month, as investors look to cash in on robust economic data and vaccine optimism. Pedestrians pass the New York Stock Exchange on Feb. 16, 2021, in New York. (AP Photo/Frank Franklin II) MANHATTAN (CN) — With the momentum of weekly gains already propelling markets forward, Wall Street latched onto booming retail numbers and great earnings reports to keep the party going. The Dow Jones Industrial Average, which gained 402 points this week after breaching the 34,000 ceiling on Thursday, has posted positive gains for the last four weeks. The S&P 500 Industrial Average netted just 57 points this week by the closing bell, but it has been riding a four-week winning streak. The Nasdaq, which increased 152 points this week, has shown its investors three straight weeks of gains.