IN THIS EPISODE, YOU’LL LEARN:

• Why understanding bubbles is critical for long-term investor survival
• How “this time is different” fuels every historical bubble
• Why smart money, incentives, and career risk inflate bubbles
• How investors rationalize bubbles using new, useless KPIs
• The predictable emotional arc: skepticism, euphoria, panic, collapse
• Kindleberger’s five stages: displacement, boom, revulsion, discredit
• Why price detaches from intrinsic value during bubbles
• Lessons from tiny bubbles like plank roads and Beanie Babies
• How human nature, not technology, causes recurring bubbles
• How to protect portfolios from bubbles by focusing on value, not narratives
• And so much more!

Disclosure: This episode and the resources on this page are for informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. For full disclosures, see link.

TRANSCRIPT

Disclaimer: The transcript that follows has been generated using artificial intelligence. We strive to be as accurate as possible, but minor errors and slightly off timestamps may be present due to platform differences.

[00:00:00] Kyle Grieve: Have you ever lost money on a stock that was clearly in a bubble, but you didn’t realize it until it was just too late? The most dangerous bubbles are the ones that never look obvious in the moment. Today, as we’re seeing a massive shift in capital towards AI, I’m starting to hear a very familiar idea surface again. That belief is that this time is different.

[00:00:19] Kyle Grieve: This topic fascinates me because as an investor, I’m constantly trying to balance two competing goals. I want to both capture as much upside as possible in my holdings, while also managing the risk of being exposed to a bubble. I don’t really view bubbles as just some sort of theoretical risk. I see them as a very real and recurring threat that every single investor eventually faces, no matter what they invest in.

[00:00:42] Kyle Grieve: There comes a point where a rapidly rising share price feels exhilarating, but that excitement is often exactly when concern is most warranted. What’s interesting about bubbles is that they’re not really that rare, and they’re not unpredictable. They are simply a reflection of human behavior, combining things like greed, optimism, and social proof. While bubbles are often associated with transformative new technologies at their core, they’re actually not about technology.

[00:01:09] Kyle Grieve: They are about psychology. So today, we’ll walk through Ron and Sana’s framework for understanding how bubbles form. We’ll explore the psychological forces that cause them to inflate so quickly. And more importantly, what exactly investors can take away from these patterns to help protect themselves from being swept up when the next bubble feels impossible to resist.

[00:01:29] Kyle Grieve: So if you’ve ever been burned by a bubble before, or if you’re wondering whether we might be in one today, this episode will give you a clearer lens for gauging risk when excitement is running especially high. Now let’s get into this week’s episode on bubbles.

[00:01:47] Intro: Since 2014, with more than 200 million downloads. We have interviewed the world’s best investors, studied deeply the principles of value investing, and uncovered many compelling investment opportunities. We focus on understanding businesses and intrinsic value, investing accordingly and sharing everything we learn with you. This show is not investment advice. It’s intended for informational and entertainment purposes only. All opinions expressed by hosts and guests are solely their own, and they may have investments in the securities discussed. Now, for your hosts, Shawn O’Malley and Kyle Grieve.

[00:02:31] Kyle Grieve: Welcome to The Investor’s Podcast. I’m your host, Kyle Grieve. And today we’ll be discussing bubbles, what makes them and how to identify them, and most importantly, how to protect yourselves from the next inevitable bubble. To discuss this subject, we’re going to refer back to a book called TrendWatching by Ron Insana.

[00:02:48] Kyle Grieve: Ron has a very, very good foundation for how he perceives bubbles, and he has a really, really good framework that I think is worth understanding and getting into a lot more depth into, to help investors really just protect themselves from bubbles, which 100 percent of the time end up badly for those who bought at the top. Now, there are a few reasons why a framework for looking at bubbles is just so essential today. It’s not just about AI hype. I’ll save that for later, but I have a very personal reason for thinking about bubbles since I own a really concentrated portfolio.

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