Retirement statistics: Then vs. now
Real returns: Then vs. now
A typical 60-40 portfolio of stocks and bonds has posted a range of returns over the past several decades. It's impossible to say how the market will perform in coming decades. Given today's low yields, however, Research Affiliates -- which helps clients with indexing and asset-allocation strategies -- calculates that the return on a 60-40 portfolio will likely be much lower over the next 30 years than it was for someone who'd invested in a similar portfolio in 1960, 1970 or 1980.