What Kills Bull Markets

We don’t think this record run is over yet — but we’re watching these signs.

The current bull market is the longest in history, but it has had some scrapes along the way. Some, such as the August 2015 “flash crash” in exchange-traded funds, were mere flesh wounds. Others, such as the late-2018 sell-off driven by concerns over rising interest rates and a U.S. trade war with China, drew serious blood. Standard & Poor’s 500-stock index slid 19.3%—just a hair above bear-market territory (generally defined as a 20% decline from a market’s peak).

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Ryan Ermey
Former Associate Editor, Kiplinger's Personal Finance

Ryan joined Kiplinger in the fall of 2013. He wrote and fact-checked stories that appeared in Kiplinger's Personal Finance magazine and on Kiplinger.com. He previously interned for the CBS Evening News investigative team and worked as a copy editor and features columnist at the GW Hatchet. He holds a BA in English and creative writing from George Washington University.