Bengen's 1994 paper (which kicked off the (so-called) "Four Percent Rule") recommended asset allocations with no less than 50% in equities, but no more 75% for

Bengen's 1994 paper (which kicked off the (so-called) "Four Percent Rule") recommended asset allocations with no less than 50% in equities, but no more 75% for retirement savings when you have retired: * PDF: https://web.archive.org/web/20120417135441/http://www.retailinvestor.org/pdf/Bengen1.pdf https://web.archive.org/web/20120417135441/http://www.retail... * https://en.wikipedia.org/wiki/William_Bengen https://en.wikipedia.org/wiki/William_Bengen 60/40 would be in the middle of that. More recent research shows that the range is still valid with thirty years more data: * https://en.wikipedia.org/wiki/Retirement_spend-down#Withdrawal_rate https://en.wikipedia.org/wiki/Retirement_spend-down#Withdraw... You may wish to be a bit more bond-heavy a little before retirement and for the first few years to counter sequence of returns risk (see Kitces' "bond tent" concept): * https://www.kitces.com/blog/managing-portfolio-size-effect-with-bond-tent-in-retirement-red-zone/ https://www.kitces.com/blog/managing-portfolio-size-effect-w... (The 4% Rule should not necessarily be taken literally, but is a good mental rule of thumb and starting point: best to hire a (fee-only) advisor to run the numbers for an actual plan.)