3 reasons why the iShares S&P 500 ETF (IVV) is a great long-term buy

The iShares S&P 500 ETF (ASX: IVV) is one of the most compelling index funds in my opinion. The exchange-traded fund (ETF) tracks the S&P 500 Index (SP: .INX), an index of 500 of the biggest companies in the US, whether they’re on the NASDAQ or the New…