Traders on the floor of the New York Stock Exchange in 2009. Mario Tama/Getty This story is available exclusively to Insider subscribers. Become an Insider and start reading now. Redeem now The bull market in US stocks is one day away from making history as the longest ever, as measured by its rise from the trough hit in March 2009. Bank of America Merrill Lynch doesn't see it ending anytime soon, mainly because earnings growth is still strong. In fact, the bank's equity strategists have...