The 10% I Take Instead of the 100% I Could Chase

Every year somebody offers me a way to turn $10,000 into $100,000. I have never taken one. I take roughly 10% a year instead, and the math says that choice has paid me better than any pitch I have heard.

What 10% actually builds

The S&P 500 has returned roughly 10% a year in nominal terms over the long run. That number includes the bad years. Put $2,000 a month into it at 10% and after 10 years you hold about $409,700 on $240,000 contributed. After 20 years you hold about $1,518,700 on $480,000 contributed. The last ten years add more than the first ten, because the money you already have is doing most of the work.

That is the whole plan. It is not complicated, and it is not fast. It also does not require me to be smart about anything except staying in.

What the chase costs

The chase has a hidden line item: the loss you have to recover from. Take $10,000 growing at 10% for 20 years and you end with about $67,300. Now suppose you take a swing at a big return and lose half of it once, in year one. You restart from $5,000 and, at the same 10%, finish at about $30,600. One 50% loss costs you more than half your ending number, because it also erases every year of compounding that money would have done.

A 50% loss needs a 100% gain just to get back to even. The person chasing 100% has to be right twice to end where the boring investor already stands.

Where I learned it

I came back from Hawaii at 30 with $20 to my name. I had worked 3 jobs since arriving from Vietnam in 2008 at age 20, and I had nothing to show for the hours. Then I read The Intelligent Investor. Benjamin Graham's point that investing is a business of protecting capital first changed how I looked at every offer. I stopped asking how much a thing could make and started asking how much it could cost me.

That question led me to one answer: S&P 500 index funds. I buy the TSP C Fund and VOO or VFIAX, and I never sell. I held through 2018, through the 2020 drop and through 2022. Net worth went from $20 to about $750K in 8 years, and it sits at $781K today, on a savings rate of 50 to 60% of income.

Why soldiers get pitched

Soldiers have steady pay, a deployment bonus now and then, and a barracks full of people with a guy who knows a guy. I have watched a lot of good paychecks go into the next hot thing. I have helped 29+ soldiers with their money, and the pattern repeats: the ones who win are the ones who automate the same fund every payday and stop looking.

The system that makes that possible is simple, and I lay it out step by step on my strategy page.

The test I use

Before I move a dollar, I ask three questions. Can I explain where the return comes from in one sentence? What happens to my plan if this drops 50%? Would I still hold it for 20 years? If I cannot answer all three, the dollar goes to the index fund. Almost everything fails the second question.

None of this is a promise. Past returns are not a guarantee, and the market will hand you a down year when you least want one. The plan works only if you are still holding when it turns.

Boring on purpose

My motto is boring on purpose, relentless by design. Boring means the same fund, the same amount, the same day. Relentless means it runs whether I feel brave, scared or bored. I am a battle buddy, not a financial guru, and the only edge I can offer you is the one I used: pick the 10%, protect it from yourself, and let the years do the loud part.