SPDR S&P 500 ETFSPY

SPY, the SPDR S&P 500 ETF Trust, is the oldest and one of the most heavily traded ETFs in the world. It tracks the S&P 500 index, giving you exposure to around 500 of the largest US companies in a single investment — instant diversification. SPY is popular with both long-term investors and active traders thanks to its enormous liquidity. Its value rises and falls with the US stock market, so it still carries market risk. Check the expense ratio and invest only what you can afford to leave invested.