Jim Roppel, a seasoned hedge fund manager who uses Bill O'Neil's investing methodology, joined us in studio to discuss why he remains bullish in the current market. He also shares how being an optimist makes him a successful trader – and the fine line between optimism and overconfidence. Plus, we analyze three stocks for your watch list: Coupa Software (COUP), Dexcom (DXCM) and Docusign (DOCU). For the video version, show notes and charts, visit investors.com/podcast.