investor sentiment and confidence are reflected in the economy and in the indexes built to track the performance of companies in the marketplace. The S&P 500 index, which follows the performance of 500 of the largest market capitalization stocks, has lost 14% of its value year to date, but it is up 33% over the past 10 years. Investors should be aware of recent changes made to the index in comparison to their own portfolio makeup. Plastic Earns Another Spot At the end of last week, transaction processing service MasterCard (NYSE:MA) replaced property and casualty insurer ACE Ltd. (NYSE:ACE) on the S&P 500. ACE is changing its incorporation to removing its eligibility for U.S. indexes. MasterCard also replaced embattled automaker General Motors (NYSE:GM) on the S&P 100. MasterCard stock is up nearly 31% year to date on revenue...
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