What is a Market Bubble?

Even investing pros struggle to define what a market bubble actually is.

illustration of stock bubble
(Image credit: Getty Images)

Even if you don’t pay a lot of attention to markets or investing, you’ve probably heard the term “market bubble”.

The global property bubble of the early 2000s led to the sub-prime crisis. The dotcom bubble of the late 1990s led to the dotcom bust. The South Sea Bubble of 1720 cost Sir Isaac Newton millions of pounds in today’s money.  

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Ben Demers
Audience Engagement Manager, Kiplinger.com

Ben Demers manages digital content and engagement at Kiplinger, informing readers through a range of personal finance articles, e-newsletters, social media, syndicated content, and videos. He is passionate about helping people lead their best lives through sound financial behavior, particularly saving money at home and avoiding scams and identity theft. Ben graduated with an M.P.S. from Georgetown University and a B.A. from Vassar College. He joined Kiplinger in May 2017.