This beaten-down innovator is tweaking its marketing strategy and staging a comeback.Opendoor Technologies (OPEN -0.77%) started its publicly traded life on a high note. Shares of the cloud-based residential real estate trader more than tripled in its first eight months on the market.But the joy didn't last long. Opendoor's stock is down 94.6% from the peak in February 2021.The stock isn't an obvious slam dunk today, but I do see signs of better days ahead. Opendoor deserves your consideration if you're int ...