Simply sign up to the US equities myFT Digest -- delivered directly to your inbox. Investors have poured record amounts of money into a fund that spreads its assets equally across the S&P 500, as ...

Perhaps a name like “cushion fund” would hasten interest. Then there are the ideal emergency-fund (oops, cushion fund) amounts that are usually bandied about—three to six months' worth of ...

Sean Anthony Eddy / Getty Images An exchange fund is a type of investment that lets investors trade shares in it on a stock exchange, making it easier to buy and sell in the market. What Is an ...