“In this environment, we think 60/40 is pretty dangerous.”: (Bloomberg) -- Wall Street likes to warn that past performance doesn’t guarantee future results, but when it comes to the traditional 60/40 mix of stocks and bonds, it kind of has. Persistent inflation could bring that to an end. The strategies, in which portfolios hold 60% stocks and 40% bonds, have produced just two down years since 2007. And during the pandemic they’ve been beating averages dating back to the 1980s. The asset allocation mix posted a 17% return in 2020 and is on course for another double-digit return this year.