What does SPX stand for?

MLA style: "SPX." Acronym Finder . 2012. AcronymFinder.com 3 Jun. 2012 http://www.acronymfinder.com/Standard-%26-Poor's-500-Index-(SPX).html
Chicago style: Acronym Finder . S.v. "SPX." Retrieved June 3 2012 from http://www.acronymfinder.com/Standard-%26-Poor's-500-Index-(SPX).html
APA style: SPX. (n.d.) Acronym Finder. (2012). Retrieved June 3 2012 from http://www.acronymfinder.com/Standard-%26-Poor's-500-Index-(SPX).html

Standard & Poor's 500 Index

This definition appears very rarely and is found in the following Acronym Finder categories:

Business, finance, etc.

Other Resources:

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Samples in periodicals archive:

Investors outside the US are purchasing companies in the Standard & Poor's 500 Index at the cheapest valuations on record, their buying power boosted by a seven-month decline in the dollar.

The US Stock Market Is on This Website