Daily , not seasonally adjusted . The S&P 500 is regarded as a gauge of the large cap U.S. equities market. The index includes 500 top companies in top industries of the U.S. economy, which are publicly held on either the NYSE or NASDAQ and covers 75% of U.S. equities. Since this is a price index and not a total return index, the S&P 500 index here does not contain dividends. Copyright Â© 2016, S&P Dow Jones Indices LLC. All rights reserved. Reproduction of S&P 500 in any form is prohibited except with the prior written permission of S&P Dow Jones Indices LLC (â€œS&Pâ€). S&P does not guarantee the accuracy, adequacy, completeness or availability of any information and is not responsible for any errors or omissions, regardless of the cause or for the results obtained from the use of such information. S&P DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE. In no event shall S&P be liable for any direct, indirect, special or consequential damages, costs, expenses, legal fees, or losses (including lost income or lost profit and opportunity costs) in connection with subscriberâ€™s or othersâ€™ use of S&P 500. Permission to reproduce S&P 500 can be requested from [email protected] More contact details are available from http://us.spindices.com/contact-us/ including phone numbers for all of its regional offices.