06/09/2026
Dollar Cost Averaging doesn’t work. It just makes you feel better.
Investors and advisors have been using this strategy for years.
You take small chunks of a larger amount of money and invest them at set intervals to reduce the risk of investing at the wrong time.
Investing a large lump sum all at once can be scary. Dollar cost averaging helps reduce that fear.
It feels disciplined and smart, but the math usually doesn’t support it.
Markets go up more often than they go down.
So, if you have the money available, investing it all at once has historically produced better returns than spreading it out over time.
Vanguard studied multiple markets over several decades and found that lump-sum investing outperformed dollar cost averaging 70% of the time, by an average of 2.5%.
That might not sound like much.
But 2.5% over 20 years adds up to a significant amount of money.
So why do people still use dollar cost averaging when it underperforms?
Because it gives you peace of mind by reducing the risk of investing everything right before a major crash.
I’m not against it.
Getting people to take action is far better than sitting in cash and waiting for the perfect time to invest.
That’s the real benefit. It’s psychology, not math.
A nervous investor who gradually invests their money and stays invested is better off than someone who waits years out of fear.
So yes, dollar cost averaging can be a powerful tool in the right circumstances.
Lump-sum investing is usually better mathematically.
Leaving your money in cash and waiting loses to both.
Which one drives your decision?
The math or the emotions?