These mutual funds have the most assets under management in 401(k) workplace retirement plans. Getty Images By Nellie S. Huang, Senior Associate Editor October 30, 2018 There's no denying the importance and popularity of 401(k)s for retirement savers. Americans have $5.3 trillion invested in these tax-deferred workplace savings accounts, according to the Investment Company Institute, and there are 55 million active 401(k) participants. BrightScope, a financial-information company that rates retirement-savings plans, compiled this list for Kiplinger of the 100 most popular mutual funds in 401(k) plans based on funds' 401(k) assets under management.See Also: 25 Best Mutual Funds for 401(k) Retirement Plans Here is the list of the top 100 mutual funds for your 401(k) retirement savings. All figures are as of Oct. 25, 2018. Annualized Total Return Rank Fund Name Symbol 1-yr 3-yr 5-yr 10-yr Total Assets (billions) Fund Type 1 Vanguard Institutional Index I VINIX 7.8% 11.5% 11.2% 14.3% $235.2 Large Blend 2 Fidelity 500 Index Investor FUSEX 7.8 11.4 11.2 14.3 166.6 Large Blend 3 American Funds Europacific Growth A AEPGX -10.7 3.4 2.8 9.1 146.6 Foreign Large Growth 4 Fidelity Contrafund FCNTX 10.6 13.0 12.1 15.2 134.9 Large Growth 5 Vanguard Total Bond Market Index Inv VBMFX -1.7 0.9 1.7 3.7 199.7 Intermediate-Term Bond 6 Vanguard 500 Index Investor VFINX 7.7 11.4 11.1 14.2 459.3 Large Blend 7 Vanguard Wellington Inv† VWELX 2.2 7.4 7.4 11.0 105.7 Allocation--50% to 70% Equity 8 Dodge & Cox Stock DODGX 5.3 11.6 10.1 14.4 74.6 Large Value 9 PIMCO Total Return A PTTAX -1.6 1.4 1.7 4.7 69.2 Intermediate-Term Bond 10 Vanguard Mid Cap Index Investor VIMSX 1.4 8.0 8.5 15.4 102.8 Mid-Cap Blend 11 Vanguard Primecap Inv† VPMCX 9.6 14.4 13.9 16.2 69.5 Large Growth 12 Vanguard Extended Market Index Investor VEXMX 2.8 9.7 7.9 15.2 70.4 Mid-Cap Blend 13 Vanguard Target Retirement 2025 Inv VTTVX 0.3 5.9 5.7 10.0 41.9 Target-Date 2025 14 Vanguard Total Intl Stock Index Inv VGTSX -8.7 3.7 1.6 8.1 359.6 Foreign Large Blend 15 Vanguard Small Cap Index Inv NAESX 3.5 9.8 7.9 15.2 95.4 Small Blend 16 Vanguard Target Retirement 2030 Inv VTHRX 0.4 6.4 6.1 10.6 35.9 Target-Date 2030 17 American Funds Growth Fund of Amer A AGTHX 9.4 12.4 11.4 14.6 180.8 Large Growth 18 Fidelity Growth Company† FDGRX 11.8 16.2 14.6 18.6 47.8 Large Growth 19 Metropolitan West Total Return Bd M MWTRX -1.4 0.8 1.7 5.6 71.1 Intermediate-Term Bond 20 Vanguard Target Retirement 2020 Inv VTWNX 0.3 5.3 5.3 9.4 33.1 Target-Date 2020 21 T. Rowe Price Retirement 2030 TRRCX 0.0 7.1 6.4 12.0 22.5 Target-Date 2030 22 Vanguard Target Retirement 2035 Inv VTTHX 0.4 6.9 6.4 11.1 34.5 Target-Date 2035 23 Vanguard Total Stock Mkt Idx Inv VTSMX 6.9 11.1 10.5 14.4 756.6 Large Blend 24 T. Rowe Price Retirement 2020 TRRBX 0.0 6.0 5.5 10.7 19.8 Target-Date 2020 25 Vanguard Windsor II Inv VWNFX 3.8 8.4 8.1 12.5 49.5 Large Value 26 Vanguard Target Retirement 2040 Inv VFORX 0.5 7.4 6.7 11.4 26.4 Target-Date 2040 27 Dodge & Cox International Stock† DODFX -13.0 2.4 1.2 9.3 58.8 Foreign Large Blend 28 T. Rowe Price Retirement 2025 TRRHX 0.0 6.5 6.0 11.4 17.9 Target-Date 2025 29 T. Rowe Price Retirement 2040 TRRDX -0.1 7.7 6.9 12.6 15.8 Target-Date 2040 30 Fidelity Low-Priced Stock FLPSX 0.8 7.0 7.0 14.7 35.8 Mid-Cap Value 31 T. Rowe Price Blue Chip Growth TRBCX 13.8 15.1 14.1 18.0 54.0 Large Growth 32 Vanguard Target Retirement 2045 Inv VTIVX 0.5 7.5 6.8 11.5 24.3 Target-Date 2045 33 T. Rowe Price Retirement 2035 TRRJX -0.1 7.4 6.7 12.4 13.7 Target-Date 2035 34 Harbor Capital Appreciation Inv HCAIX 11.4 12.8 12.8 16.0 29.5 Large Growth 35 American Funds American Balanced A ABALX 3.5 7.4 7.5 10.9 135.3 Allocation--50% to 70% Equity 36 MFS Value A MEIAX -1.6 7.7 8.2 12.1 45.4 Large Value 37 Fidelity Extended Market Index Investor FSEMX 2.9 9.8 8.0 15.1 23.4 Mid-Cap Blend 38 Fidelity Diversified International FDIVX -9.0 1.8 2.3 8.3 15.9 Foreign Large Growth 39 T. Rowe Price Mid-Cap Growth† RPMGX 5.5 10.9 11.4 17.5 29.6 Mid-Cap Growth 40 Dodge & Cox Income DODIX -0.6 2.6 2.7 5.6 56.9 Intermediate-Term Bond 41 Fidelity Freedom 2030 FFFEX 0.0 7.1 6.4 10.2 32.6 Target-Date 2030 42 Fidelity Balanced FBALX 4.1 7.7 7.7 11.3 34.2 Allocation--50% to 70% Equity 43 Vanguard Target Retirement 2015 Inv VTXVX 0.3 4.5 4.6 8.7 16.4 Target-Date 2015 44 Vanguard International Growth Inv VWIGX -6.2 8.8 5.0 11.4 36.7 Foreign Large Growth 45 Fidelity Freedom 2020 FFFDX -0.1 5.8 5.3 9.0 29.1 Target-Date 2020 46 T. Rowe Price Growth Stock PRGFX 9.9 13.2 12.9 17.2 50.9 Large Growth 47 Vanguard Target Retirement 2050 Inv VFIFX 0.4 7.5 6.8 11.5 16.8 Target-Date 2050 48 Vanguard Balanced Index Inv VBINX 3.6 7.1 7.0 10.3 39.5 Allocation--50% to 70% Equity 49 Vanguard Growth Index Investor VIGRX 10.7 12.0 12.0 15.8 86.9 Large Growth 50 Fidelity Puritan FPURX 4.7 8.0 8.0 11.2 29.5 Allocation--50% to 70% Equity 51 Fidelity Freedom 2025 FFTWX -0.2 6.1 5.6 9.7 27.5 Target-Date 2025 52 Fidelity US Bond Index Investor FBIDX -1.6 0.8 1.7 3.6 40.0 Intermediate-Term Bond 53 American Funds Washington Mutual A AWSHX 6.0 10.7 9.9 13.2 104.3 Large Value 54 T. Rowe Price Retirement 2045 TRRKX -0.1 7.8 7.0 12.7 8.8 Target-Date 2045 55 American Funds New Perspective A ANWPX 1.0 8.5 7.9 12.9 78.3 World Large Stock 56 MainStay Large Cap Growth A MLAAX 15.5 13.2 11.9 15.7 11.8 Large Growth 57 T. Rowe Price Instl Large Cap Growth TRLGX 15.8 16.9 14.7 19.1 17.3 Large Growth 58 Harbor International Investor HIINX -11.9 -0.4 -1.3 7.3 12.7 Foreign Large Blend 59 Vanguard Instl Ttl Stk Mkt Idx I VITNX 7.0 11.2 10.7 14.6 38.7 Large Blend 60 Fidelity Freedom 2040 FFFFX -0.1 7.8 6.8 10.8 23.1 Target-Date 2040 61 Vanguard Inflation-Protected Secs Inv VIPSX -0.9 1.1 0.7 3.6 28.1 Inflation-Protected Bond 62 Fidelity Freedom 2035 FFTHX 0.0 7.7 6.8 10.7 22.5 Target-Date 2035 63 JPMorgan Mid Cap Value A† JAMCX -1.5 6.5 7.4 14.1 17.2 Mid-Cap Blend 64 Vanguard Equity-Income Inv VEIPX 2.4 9.6 9.3 13.1 33.4 Large Value 65 Vanguard Value Index Inv VIVAX 4.7 10.5 9.9 12.9 74.7 Large Value 66 T. Rowe Price Retirement 2050 TRRMX -0.1 7.8 7.0 12.7 7.3 Target-Date 2050 67 Vanguard Developed Markets Index Inv VDVIX -7.7 3.4 1.9 8.0 111.2 Foreign Large Blend 68 American Funds Fundamental Invs A ANCFX 4.2 10.8 10.1 14.0 94.5 Large Blend 69 JPMorgan SmartRetirement 2030 A JSMAX -1.4 5.4 5.4 10.8 8.1 Target-Date 2030 70 Fidelity OTC FOCPX 14.4 17.1 16.1 20.5 22.0 Large Growth 71 Fidelity International Index Investor FSIIX -7.5 3.0 1.6 7.9 23.2 Foreign Large Blend 72 Fidelity Blue Chip Growth FBGRX 14.7 14.7 14.1 17.9 28.2 Large Growth 73 JPMorgan SmartRetirement 2020 A JTTAX -1.2 4.3 4.4 9.4 6.4 Target-Date 2020 74 American Beacon Large Cap Value Inv AAGPX -0.2 7.6 7.1 12.1 6.1 Large Value 75 Dodge & Cox Balanced DODBX 3.2 8.5 7.7 12.1 15.8 Allocation--50% to 70% Equity 76 Invesco Diversified Dividend A LCEAX -0.8 5.3 7.2 12.0 20.2 Large Value 77 Oakmark Equity And Income Investor OAKBX -1.4 5.9 5.3 8.5 14.4 Allocation--50% to 70% Equity 78 Neuberger Berman Genesis Inv NBGNX 5.0 10.0 7.5 13.1 9.9 Small Growth 79 JPMorgan SmartRetirement 2025 A JNSAX -1.4 4.8 5.0 10.2 7.4 Target-Date 2025 80 T. Rowe Price Retirement 2015 TRRGX 0.0 5.3 4.9 9.8 6.9 Target-Date 2015 81 Vanguard Real Estate Index Investor VGSIX 0.4 3.8 6.6 13.1 59.4 Real Estate 82 T. Rowe Price New Horizons† PRNHX 17.0 16.9 13.4 21.2 24.3 Small Growth 83 Oppenheimer Developing Markets A† ODMAX -11.3 5.4 0.2 10.9 34.7 Diversified Emerging Mkts 84 Vanguard Explorer Inv VEXPX 11.7 13.2 8.9 15.8 16.9 Small Growth 85 PGIM Total Return Bond A PDBAX -1.5 2.1 2.7 6.1 35.4 Intermediate-Term Bond 86 JPMorgan Large Cap Growth A OLGAX 16.6 14.6 13.3 16.3 14.2 Large Growth 87 T. Rowe Price Equity Income PRFDX 0.8 9.4 7.1 11.8 20.1 Large Value 88 American Funds AMCAP A AMCPX 8.3 11.1 10.5 15.0 62.3 Large Growth 89 Vanguard Windsor Inv VWNDX -2.5 7.0 7.4 13.6 20.1 Large Value 90 Schwab S&P 500 Index SWPPX 7.8 11.4 11.2 14.3 34.3 Large Blend 91 American Funds Capital World Gr&Inc A CWGIX -2.7 6.1 5.4 10.6 90.9 World Large Stock 92 JPMorgan SmartRetirement 2040 A SMTAX -1.9 6.1 5.9 11.4 6.1 Target-Date 2040 93 Vanguard Wellesley Income Inv VWINX 0.2 4.9 5.3 8.8 53.2 Allocation--30% to 50% Equity 94 American Beacon Small Cp Val Inv AVPAX -3.7 7.2 6.0 13.7 6.5 Small Value 95 Artisan Mid Cap Investor† ARTMX 4.5 7.3 6.5 15.9 6.2 Mid-Cap Growth 96 JPMorgan SmartRetirement 2035 A SRJAX -1.8 5.7 5.6 11.2 6.2 Target-Date 2035 97 American Funds 2030 Trgt Date Retire A AAETX 1.2 6.8 6.5 11.4 18.3 Target-Date 2030 98 Goldman Sachs Small Cap Value Inv† GSQTX -1.7 8.6 7.0 14.0 6.9 Small Blend 99 Fidelity Freedom 2045 FFFGX 0.0 7.8 6.8 10.9 13.9 Target-Date 2045 100 Vanguard Target Retirement Income Inv VTINX 0.2 3.5 3.6 6.5 16.6 Target-Date Retirement See Also: Best Vanguard Funds for 401(k) Retirement Savers *The dollar amounts represent funds' total assets under management held both within 401(k) plans and outside of 401(k)s, according to Morningstar. BrightScope ranked the funds by assets under management held in 401(k)s only, but it did not disclose the precise amounts for proprietary reasons. †Closed to new investors. SOURCES: BrightScope, Morningstar Inc. See Also: The Best Fidelity Funds for 401(k) Retirement Savers Show comments