index fund
Americannoun
Etymology
Origin of index fund
First recorded in 1975–80
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Warren Buffett, living proof there’s such a thing as investing skill, famously bet a hedge fund executive that an S&P 500 index fund would beat five elite “funds of funds” over 10 years.
From The Wall Street Journal ● Jul. 14, 2026
The top five holdings in an S&P 500 index fund account for 29% of the fund by value, if you can believe it.
From MarketWatch ● Jul. 14, 2026
By law, the money must be invested in a low-cost index fund designed for long-term growth.
From BBC ● Jul. 11, 2026
Money in these accounts must be invested in a low-fee index fund of primarily U.S. equities.
From MarketWatch ● Jun. 23, 2026
Eventually, lockups expire, and float increases, along with index fund exposure.
From Barron's ● Jun. 12, 2026
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.