In this photo illustration, the Robinhood Markets, Inc. logo is displayed on a smartphone screen. Retail brokerage firm Robinhood is launching a new tool for more sophisticated traders as it looks for additional avenues for growth. The firm introduced Robinhood Legend, a desktop-based platform for active traders. The offering includes advanced charting tools for users who want to do detailed analysis of stocks. "In looking at the landscape of trading tools and by talking with active traders, we realized the ...