3 Ways to Simplify Your Investment Portfolio in 2026

This time of year, many of us resolve to take on a new good habit (or two). In addition to popular resolutions like exercising more and reconnecting with family, some investors should resolve to simplify their portfolios in 2026.

The Hidden Costs of a Complex Portfolio

A portfolio that’s more complicated than it needs to be can lead to some bad investing habits.

“Clutter in your financial life—like clutter on your desktop—has the potential to distract you from the main jobs at hand,” says Morningstar director of personal finance and retirement planning Christine Benz. “You may not bother reviewing and maintaining your portfolio if it has too many moving parts.”

Another hidden cost of an overly complicated portfolio: If something should happen to you, a complex portfolio could make life difficult for your loved ones who are left behind. Take time now to simplify your portfolio so you can pass it on, if need be.

How to Simplify an Investment Portfolio

Here are three strategies to simplified investing:

1. Swap your actively managed funds for index funds.
2. Favor broad all-market stock funds instead of multiple style-specific equity products.
3. Delegate some/all of your asset allocation to a target-date or allocation fund.

Here’s a little bit about each strategy, as well as some exchange-traded funds and mutual funds that can streamline your portfolio.

Strategy 1: Swap Your Actively Managed Funds for Index Funds

Index funds are passive investments, which means they have no key-person risk and no strategy surprises—and therefore arguably require less monitoring than their actively managed counterparts. Some might say that you can’t beat the market if you’re indexing it, which is of course true. But is a shot at beating the market really worth the extra monitoring? For most investors, probably not.

There are highly rated index funds in all of the main investment categories to choose from, whether you’re seeking growth or value stocks or a combination of the two, large or small companies, international stocks, and even bonds. And most of these index products are less expensive than actively managed funds, thereby offering cost savings over time, too.

Among core domestic large-company ETFs and mutual funds, top index fund choices include the Schwab US Broad Market ETF SCHB, iShares Core S&P Total U.S. Stock Market ETF ITOT, and Vanguard Total Stock Market ETF VTI

. (The latter fund tracks a CRSP index that Morningstar has agreed to acquire from the University of Chicago.)

Among index international-stock funds, we like Vanguard Total International Stock ETF VXUS and iShares Core MSCI Total International Stock ETF IXUS, which earn Morningstar Medalist Ratings of Gold.

Lastly, some of our top-rated bond index fund choices include Vanguard Total Bond Market ETF BND and Schwab US Aggregate Bond ETF SCHZ.

Strategy 2: Favor Broad All-Market Stock Funds Instead of Multiple Style-Specific Equity Products

Experts have drummed into our heads the value of intra-asset-class diversification. After all, sometimes, growth stocks will lead the market, while other times, value prevails. As such, say the experts, make sure you have exposure to both styles. Also, small caps have periods of outperformance over large caps, so be sure to own both. International stocks can zig when the US market zags, and don’t forget about emerging-market equities!

Those of us who’ve heeded that advice probably have dedicated large- and small-cap funds, individual value and growth funds, and perhaps even multiple international funds.

Do we really need all of these investments to have a well-diversified portfolio, or can one or two broad-based funds do the job instead?

Of course, far-reaching index funds—many of those already mentioned—can provide sufficient diversification. For instance, pairing Vanguard Total Stock Market ETF with Vanguard Total International Stock ETF gives you exposure to a significant chunk of the global stock market. Just two funds, but plenty of diversification—and at a low cost, to boot.

Strategy 3: Delegate Some/All of Your Asset Allocation to a Target-Date or Allocation Fund

The previous two ideas assumed that investors want to retain control of their stock/bond mix. But for those who would prefer to back away from being hands-on with their asset mix, allocation or target-date funds may be of interest.

Both allocation and target-date funds combine stocks and bonds in one portfolio, providing asset-class diversity in a single fund and thereby reducing the need for a lot of oversight.

Allocation funds typically rebalance back to a target stock/bond mix. And those stock/bond blends can be conservative (holding 15% to 30% in equities and the rest in bonds), aggressive (which holds more stocks than bonds), and moderate (whose stock/bond splits are somewhere in between). Some top allocation funds include T. Rowe Price Balanced RPBAX and Vanguard Wellesley Income VWINX.

Unlike allocation funds, target-date funds don’t rebalance back to a target stock/bond mix. Instead, these funds provide an age-appropriate asset mix and then generally make that mix more conservative as time goes by, increasing the bond position and decreasing the equity stake. The idea is to pick a target-date fund close to the year that you intend to retire. The following target-date series all earn Gold ratings from Morningstar for their cheapest share classes: Capital American Target Date Retirement, T. Rowe Price Retirement, T. Rowe Price Retirement Blend, BlackRock LifePath Index, Fidelity Freedom Index, and iShares LifePath Target Date ETF.

Portfolio Simplification and Taxes

Of course, simplifying investments in a taxable account may have unwanted tax consequences. To sidestep tax concerns, consider focusing your simplification efforts on tax-deferred accounts. Or make only modest changes in a taxable account over time, where you can carefully offset gains with losses.