What kind of return can we expect from a 401(k)?
How much can we realistically expect our 401(k) retirement plans to earn each year?
We asked Christine Benz, director of personal finance for Morningstar, a respected provider of independent investment research.
She said 5% a year is a good conservative estimate to use for planning purposes.
Of course, your actual return depends on the plan you have, the fees you pay and the performance of the stock and bond markets.
But 5% is not unrealistic and a good figure to use in judging how well your account is doing.
It's easy to get dazzled by the good years and think you should be doing better.
From 2009 to 2014, mutual funds that were heavily invested in stocks — a common component of 401(k) plans — did much better than that.
Although stocks have subjected investors to several headline-grabbing declines over the past year, prices are essentially flat for 2015.
That's why it's costly to panic and sell when markets fall. You'll just lock in your losses.
"You want to avoid getting too caught up in the short term and think about what you're trying to achieve," Benz says. "Think of it as a multiyear process and not a short-term endeavor."
Over the years, a 401(k) plan is one of the best options you have to save and build financial security.
First, it allows you to make pretax contributions to a savings plan and grow your money. Second, if your employer offers matching contributions, that's free money to add to the pot.
"What you don't want to do is not contribute or let money sit in a savings account earning nothing," Benz says.
Brightscope, a financial information company that provides analytics on investments and retirement plans, provided us with this list of mutual funds, and Morningstar provided the performance data as of Sept. 30.
Returns and Expenses
The Biggest Mutual Funds Commonly Found In 401(k) Plans
|Mutual Fund||Ticker Symbol||Description||Average Annual 5-Year Return||Management Expenses|
|PIMCO Total Return||PTTRX||World's largest fund holds intermediate-term investment-grade bonds||3.23%||0.46%|
|Vanguard Institutional Index||VINIX||Large-blend domestic stock fund that tracks performance of the S&P 500||13.31%||0.04%|
|American Funds EuroPacific Growth||AEPGX||Foreign large-cap blend fund with stocks in European and Pacific Rim companies.||4.19%||0.83%|
|Fidelity Contrafund||FCNTX||Large-cap growth fund that seeks capital appreciation||13.34%||0.64%|
|Vanguard Total Bond Market Index||VBMFX||Intermediate-term bond fund||2.87%||0.20%|
|Fidelity Spartan 500 Index||FUSEX||Low-cost large-blend fund with 80% of assets tracking the S&P 500||13.24%||0.09%|
|Vanguard 500 Index||VFIAX||Very low-cost index fund that tracks the performance of the S&P 500||13.30%||0.05%|
|Fidelity Growth Company||FDGRX||Large-cap growth fund that seeks capital appreciation||15.65%||0.82%|
|Vanguard Wellington||VWELX||Moderate allocation fund with 60% of assets in dividend-paying stocks||9.33%||0.26%|
|American Funds Growth Fund of America||RGAEX||Large-growth fund with $145 billion in assets.||12.57%||0.68%|
|5-year returns as of Sept. 30, 2015|
Mari Adam, president of Adam Financial Associates in Boca Raton, Florida, says what you can expect to earn is also highly dependent on how you invest.
Ideally, you'll want a mix of stocks and bonds in your plan. You'll generally want to be invested up to 90% in equities when you're in your 30s, then move more into bonds as you get closer to retirement.
"I think 6% is a reasonable expectation for retirement planning purposes if you're investing properly for your age," says Adam.
You can get a good asset allocation through a balanced fund or target date fund.
While stocks have the potential for rapid gains when the market is going strong, bonds are also essential to provide some stability when stocks are down.
One of the most common balanced funds found in 401(k) plans is the Vanguard Wellington, which holds about 64% in stocks and the other 36% in bonds.
Wellington owns a lot of large-cap stocks, such as Exxon Mobil, Verizon, Wells Fargo & Co., Microsoft and Merck, and a variety of government and corporate bonds.
It's a decent pick for a single-fund 401(k) plan. Its expense ratio is a mere 0.26%, and over the past 10 years, it's averaged nearly 7% in returns.
The PIMCO Total Return (PTTRX) is another fund you're likely to find in your 401(k) plan.
It holds intermediate-term investment-grade bonds, seeks to maximize total return while preserving capital and has produced an annualized return of 5.76% over the past decade.
Because it's strictly a bond fund, you'll want to pair it with an equities fund.
Benz says you can easily create your own balanced fund in most 401(k) plans.
If you wanted a traditional 60/40 mix, you would simply direct 60% of your contributions to a stock fund and 40% to a bond
fund. Or you could be more aggressive and use a 70/30 mix or even more in equities.
"It's not very difficult to create a diversified and balanced portfolio with the funds in most plans," Benz says. "It could be the next-best option for someone trying to find their way in a 401(k) plan without a lot of information."
A couple of solid equities funds you may find in your plan include the Vanguard Institutional Index Fund (VINIX) and the Fidelity Spartan 500 Index (FXISIX).
Both of these are low-cost funds designed to track the performance of the S&P 500 and provide exposure to the broad stock market.
Over the past five years, the Vanguard fund has averaged 13.31%, while the Fidelity fund has done slightly better at 13.24%.
Other popular bond and equities funds, including the Fidelity Contrafund, Vanguard Total Bond Market Index and Vanguard 500 Index, have all produced solid returns in recent years.
It's important to note that past performance should never be seen as an indicator of future returns. As this year makes clear, the markets will fluctuate, and run-ups will inevitably be followed by periods when the market is flat or falling.
But if you place your 401(k) in funds with an established track record with reputable companies, you should do OK over the long run.
When making that decision, one of the most important factors to consider is expenses.
Choosing mutual funds with the lowest management fees can make a big difference in how much you wind up with.
And seemingly small fees can add up to big amounts of money over the course of a career.
Consider that if you invested $5,000 annually for 30 years and averaged a 6% return with a 1% management fee, you'd pay $71,000 in fees during that time.
But if you managed to earn the same return from a fund with a 0.25% management fee, you'd only have paid $19,000 in fees.
That 0.75% difference could mean an extra $50,000 in your account when you retire.
As you can see from the chart, there are lots of funds that earned healthy average annual returns over the past five years, despite 2015's mixed record, with expenses well under 1% a year.
That's the combination you want to look for — a history of solid returns with low expenses.
Those are the mutual funds that can help your retirement account grow.
But Adams notes that the single biggest boost to your 401(k) comes from employer matching contributions.
"People get focused on how much they're making on investments," she says. "But if your employer is matching up to a certain amount, that's a 100% gain on that money right there. That's why you need to take full advantage of matching contributions if you have them."