Mary Ellen McGonagle on the BIGGEST Risk for Stocks in Q4

In the 69th episode of the Market Misbehavior podcast, Dave catches up with Mary Ellen McGonagle, Founder and President of MEM Investment Research.  Mary Ellen discusses her formative years as an institutional investor, lessons learned working with legendary investor William O'Neil, a new phase for the AI trade, strategies for playing overextended charts, and the biggest risks for equities in Q4.  Recorded 9/25/25.You can learn more about Mary Ellen's work at https://meminvestmentresearch.com/.🎓 Take Dave’s FREE course on behavioral investing: https://www.marketmisbehavior.com/freecourse📘 Check out Dave’s recommended reading list: https://www.marketmisbehavior.com/readinglist👉  Follow Dave on X: https://x.com/DKellerCMT👉  Follow Dave on Bluesky: https://bsky.app/profile/dkellercmt.bsky.social👉  Follow Dave on Facebook: https://www.facebook.com/marketmisbehavior👉  Follow Dave on Instagram: https://www.instagram.com/marketmisbehaviorThe content in this presentation should not be considered as a recommendation to buy or sell any security. All information is intended for educational purposes only and in no way should be considered as investment advice.