Manan Singh, VP of Optimization at LendingTree, discusses how the company drives bottom line impact through mass-scale experimentation. He explains that they prioritize the biggest opportunities for improved ROI, run quick iterative experiments to learn fast, and measure success both quantitatively and qualitatively to understand why changes work. This comprehensive approach has helped LendingTree optimize its conversion funnel as a strategic initiative, with the stock price increasing 160% this year reflecting results translated to the bottom line.