Some time ago ER Eddie asked how many years does someone need to be retired before they don’t need to worry about sequence of return risks. It was a good question, but after thinking about it, I realized that I didn’t know the answer. Recently, I took a look at one of the worst years for SORR, 1937, where a 60/40 portfolio would be down in 4 of the first 5 years. Attached is a graph that shows portfolio values per year. The portfolio starts with $1 million and is exhausted at the end of 30 years. The bottom line with square data points is the portfolio value using actual returns from 1937 – 1966, using a 4.5% withdrawal rate. The top line with triangular data points is a reference that uses a constant 2.22% return and 4.5% withdrawal rate.
The results are pretty scary. The SWR for a 30-year retirement was 4.5%, but the portfolio value would be down to about half its initial value after 6 years. I’m a pretty by the numbers person, but even I would be drastically cutting spending if that happened to my portfolio. Even 17 years into retirement, the portfolio value was 35% below its expected value. So the answer to the question of when you don’t need to worry about SORR would seem to be “when you wouldn’t worry if your portfolio value dropped in half in the next 6 years.” For those that keep large wads of cash on hand to spend during market downturns, it looks like you would need 9 years of cash to weather the storm.
The results are pretty scary. The SWR for a 30-year retirement was 4.5%, but the portfolio value would be down to about half its initial value after 6 years. I’m a pretty by the numbers person, but even I would be drastically cutting spending if that happened to my portfolio. Even 17 years into retirement, the portfolio value was 35% below its expected value. So the answer to the question of when you don’t need to worry about SORR would seem to be “when you wouldn’t worry if your portfolio value dropped in half in the next 6 years.” For those that keep large wads of cash on hand to spend during market downturns, it looks like you would need 9 years of cash to weather the storm.