In this week's episode of Rule Breaker Investing, Motley Fool co-founder David Gardner is joined by analysts Rick Munarriz and Karl Thiel to break down some not-so-good stocks. Find out what went wrong for these companies, if there's light at the end of the tunnel, and more. To catch full episodes of all The Motley Fool's free podcasts, check out our podcast center. To get started investing, check out our quick-start guide to investing in stocks. A full transcript follows the video. This video was recorded on January 5, 2021. David Gardner: What's the worst investment you've ever made? The worst? Did you lose 100%? I sure hope you didn't do worse than that. I mean, the only way to do worse than that is to borrow money that you didn't have and then lose all of that. Well, as many losers as I've had and as used to losing as I am, I've still never picked a stock for The Motley Fool that went down 100%, but I've come close. This time, every year, once a year, I talk about my worst stock picks, my biggest losers over the past three years. If winners win, losers lose and it's important to talk about both. So, come with me, won't you? To the dark side, the shadow side, the losing side. Let's explore and learn today on my annual David's Biggest Losers Volume Six. Only on this week's