answers: common
context: dividend growth rate. Since 1990, the average or mean annual dividend growth rate for the S&P 500 index has been 5.94 % through September 30, 2018. The absolute percentage level of dividends in a dividend growth strategy is less paramount, as there are many attractive dividend growth stocks that yield only a 1% to 2% annual dividend rate. What the investor is seeking in this type of strategy is a higher and accelerating rate of an annual percentage of the dividend increase. Most dividend growth investors seek dividend payouts that increase at a 10% or more rate annually. S&P Capital </s> S&P 100 The S&P 100 Index is a stock market index of United States stocks maintained by Standard & Poor's. Index options on the S&P 100 are traded with the ticker symbol "OEX". Because of the popularity of these options, investors often refer to the index by its ticker symbol. The S&P 100, a subset of the S&P 500, includes 102 (because two of its component companies have 2 classes of stock) leading U.S. stocks with exchange-listed options. Constituents of the S&P 100 are selected for sector balance and represent about 63% of the market capitalization of the S&P 500 </s> open on Thursday, April 3, 2014, the Class C common stock of Google, Inc. was added to the index as a result of Google's stock split. This meant the index had 101 components. Later in 2014, additional classes of stock from other index companies were added to the index, bringing the number of constituent securities in the index to 107. On December 12, 2014, NASDAQ announced that American Airlines Group, Electronic Arts, and Lam Research would be added to the index, effective December 22, replacing Expedia, F5 Networks, and Maxim Integrated Products. A number of changes took place in 2015.
question: what types of stocks make up the s&p 500