Stock and Bond Volatility Highlights the Value of Dollar Cost Averaging
The investment world can change fast. In the Spring of 2025, some financial experts (not us!) expected the Federal Reserve to raise interest rates to preempt tariff-induced inflation. Bond yields were climbing, and stock markets were pulling back after a strong start to the year.
But the situation has shifted again. Economic growth is projected to slow down, and the Fed is now easing short-term interest rates. At the same time, the U.S. government faces the challenge of managing nearly $38 trillion in debt, adding pressure to the bond market.
There’s more. Global trade tensions are abnormally high. And technology stocks – which had driven much of the market’s gains in recent years – are at, or near, all-time high prices.
These factors—rising debt concerns, bond market and trade uncertainty, and tech sector valuations—have made both stock and bond markets more volatile. No one could have predicted how quickly things would change. That’s why MoneyLetter continues to advise investors to stay calm and think long-term. One smart strategy to consider during uncertain times is dollar cost averaging (DCA).
What is dollar cost averaging?
Dollar cost averaging means investing a fixed amount of money at regular intervals, like monthly or quarterly, into mutual funds or other investments. The amount you invest stays the same, but the number of shares you buy changes depending on the price.
When prices are low, you end up buying more shares. When prices are high, you buy fewer. Over time, this often results in buying more total shares than if you had invested all your money at once.

Why dollar cost averaging works
DCA takes emotion out of investing. It helps you avoid the fear of missing out when prices rise and the panic of selling when prices fall. While it’s possible that investing a lump sum at the right time could earn more, it’s very hard to know when that “right time” is. Trying to time the market precisely usually doesn’t work.
If you’re still working and saving for retirement or college, DCA is a great way to build wealth over time. If you receive a lump sum—like a bonus or inheritance—DCA lets you ease into the market slowly, reducing risk. If you have a 401(k) plan at work, you’re already using DCA. Money is taken from your paycheck and invested regularly, no matter what the market is doing.
DCA works best with no-load mutual funds or ETFs, which don’t charge commissions. It’s especially helpful during times of market ups and downs, like we’ve seen recently. While markets can struggle for a while, they tend to grow over the long term.
What if you need cash?
Sometimes, you may need to take money out of your investments, maybe to build an emergency fund or to cover living expenses in retirement. Selling investments using a DCA-like method (selling the same amount regularly) is not a good idea. This is called reverse dollar cost averaging, and it can hurt your portfolio. You end up selling more shares when prices are low and fewer when prices are high, which can reduce your future growth.
Instead, here are some smart ways to raise cash during market volatility:
- Rebalance your portfolio: If stocks have dropped and bonds now make up a bigger part of your portfolio, consider selling some bonds first.
- Review your investments: You might have holdings that no longer fit your goals or have underperformed. These could be good candidates to sell.
- Harvest tax losses: If you have investments that are worth less than what you paid, selling them can help offset gains or reduce your taxable income (up to $3,000 per year).
- Think about taxes: If you must sell investments for a gain, try to sell those you’ve held for over a year. Long-term capital gains are taxed at a lower rate than short-term gains.
If you have any questions, feel free to email us at service@moneyletter.com.