The Globe and Mail reports in its Saturday edition that for greater exposure to tech, and better diversification, investors might consider adding a simple Canadian-listed S&P 500 exchange-traded fund to their portfolio. The Globe's John Heinzl writes that there are several Canadian-listed S&P 500 ETFs to choose from. Three of the largest are the BMO S&P 500 Index ETF (ZSP), the iShares Core S&P 500 Index ETF (XUS), and the Vanguard S&P 500 Index ETF (VFV). Collectively, these funds manage roughly $60-billion of assets, reflecting their popularity with Canadian investors. Apart from having different names, these ETFs are essentially the same. All three trade in Canadian dollars. They charge the same management expense ratio of 0.09 per cent, and they have identical five-year annualized total returns of 15.8 per cent. For investors who are not comfortable with currency risk, each ETF also has a hedged version that uses forward contracts to offset fluctuations in the Canada-U.S. exchange rate. Hedging would, in theory, minimize the damage if the Canadian dollar were to suddenly rise. If the Canadian dollar falls, on the other hand, a hedged ETF will typically underperform a non-hedged ETF.