How to Build a War Chest for Retirement

Two people can retire with the same total balance, the same asset mix, the same withdrawal rate, even the same average annual return over thirty years, and still land in totally different places by the end. In this episode, Brett Fellows, CFP®, founder of Oak Capital Advisors, walks through why the order those returns show up in can carry as much weight as the returns themselves, and lays out the War Chest, a framework for setting aside three to five years of spending so a retiree is never forced to sell stocks during a downturn just to cover this month's bills.Brett covers:Why a retirement portfolio has to fund today's spending and keep growing for the next thirty years at the same timeHow a portfolio drifts from its target allocation without a single decision causing it, shown with a real dollar exampleCalendar-based vs. threshold-based rebalancing, and the tax difference between rebalancing in a 401(k)/IRA vs. a taxable brokerage accountWhat the War Chest holds, why inflation-protected securities are part of it, and how it played out for real retirees during the spring 2025 market dropSequence of return risk, the "Red Zone," and how retirement age and funding level change how much cushion a plan needsHow to size a speculative investment sleeve without putting the actual retirement plan at riskKey Timestamps:(0:18) Two retirees, same portfolio, completely different outcomes(2:16) Why a drifting plan becomes a stress problem, not just a technical one(3:10) The two jobs a retirement portfolio has to do at once(5:06) How a 60/40 portfolio drifts without a single trade being made(5:56) A dollar example of five years of portfolio drift(7:51) Calendar-based vs. threshold-based rebalancing(9:01) Tax treatment of rebalancing: retirement accounts vs. taxable accounts(9:58) Introducing the War Chest(11:04) Morningstar's findings on when retirement portfolios run out of money(12:21) What inflation-protected securities (TIPS) do inside the War Chest(13:53) Why rebalancing feels wrong even when it's working(15:10) Real example: the spring 2025 market drop and the War Chest in action(16:17) Practical habits for maintaining the War Chest and allocation(17:21) Sizing a speculative investment sleeve(19:29) Sequence of return risk explained(20:45) How retirement age and funding level change red zone exposure(22:19) Coordinating withdrawals with tax planning(24:44) The assignment: sorting your portfolio into three bucketsFor more information and resources related to this episode, please visit the show notes.