Historical Events tagged with "index"
Turns out history loves a label—battles, breakthroughs, and the occasional disaster, all neatly tagged for your browsing pleasure. Because sometimes you just need every weird invention in one place.
Economics & Industry
S&P 500 Index Introduced, Replaces S&P 90
March 4th, 1957 68 years ago
The S&P 500 index was introduced as a new benchmark for U.S. equities, replacing the former S&P 90 index. This new index included 500 of the largest publicly traded companies, representing a broader market and providing investors with a more accurate gauge of the U.S. stock market. The change marked a significant evolution in financial metrics used by investment professionals.
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