A brutal September for bonds points to an even darker October

A brutal September for bonds points to an even darker October A brutal September for bonds points to an even darker October If history is any guide, the bond-market pain isn’t over yet The bond-market pain might not be over yet. /iStockphoto September was a brutal month for the bond market. If history is any guide, October might be even worse. Treasury market wrapped up its worst quarter in years, the Bloomberg U.S.

Aggregate Total Return Index — better known as the AGG — fell by more than 2.5% for the month of September, according to Dow Jones Market Data. That marked its biggest monthly drop since at least April 30. Copyright ©2026 MarketWatch, Inc.

All Rights Reserved. 87990cbe856818d5eddac44c7b1cdeb8 U.S. bond yields post biggest jump in a generation as global rout rattles investors Paramount’s mega debt sale reveals how higher bond yields are squeezing corporate America Billionaires like Ken Griffin are doling out tons of money to prove that a college degree still matters The U.S. economy is defying gravity. Here’s all the good news. Gold is supposed to be a safe haven when inflation surges.

So why isn’t it working that way now? Joseph Adinolfi is assistant managing editor, markets. Intraday Data provided by FACTSET and subject to terms of use.

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