Events on Wall Street Can successful investors predict changes in the markets? Some can but others miss the market’s signals. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents When Markets React When markets shift, experienced investors stick to their strategy. The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.