The S&P 500 index is one of the most widely followed stock market indexes in the world, with trillions of dollars managed based on its makeup. When companies are added or removed from the index, it ...

2-Year U.S. Treasury Note Continuous Contract $104.516 0.035 0.03% 5-Year U.S. Treasury Note Continuous Contract $110.016 0.086 0.08% 10-Year U.S. Treasury Note Continuous Contract $113.578 0.188 0.17 ...

See which stocks fell in the rankings and which rose Gabe Alpert is a financial journalist and former Editor at Investopedia. The Standard & Poor's 500 Index, or simply the S&P 500, is a ...