If you're invested in any of the funds in our "Magnificent Retirement Mutual Funds" list, congratulations on owning some of the best managed and top-performing mutual funds. If you are lucky enough to discover our list of Top-Ranked Funds for the first time, it's never too late to start investing with the best, especially when it comes to your retirement.

Great performance, diversification, and low fees: it's a pretty simple formula for a great mutual fund. Some are better than others, but utilizing our Zacks Rank, we have identified three mutual funds that would make great additions to long-term investors' portfolios.

Let's take a look at some of the highest Zacks Ranked mutual funds with the lowest fees.

JPMorgan Intrepid Growth I (JPGSX): 0.59% expense ratio and 0.3% management fee. JPGSX is a Large Cap Growth option; these mutual funds purchase stakes in numerous large U.S. companies that are expected to develop and grow at a faster rate than other large-cap stocks. With annual returns of 12.85% over the last five years, this fund is a winner.

Hartford Core Equity R5 (HGITX) is a stand out amongst its peers. HGITX is part of the Large Cap Blend section, and these mutual funds most often invest in firms with a market capitalization of $10 billion or more. By investing in bigger companies, these funds offer more stability, and are often well-suited for investors with a "buy and hold" mindset. With five-year annualized performance of 10.71%, expense ratio of 0.49% and management fee of 0.34%, this diversified fund is an attractive buy with a strong history of performance.

T. Rowe Price New Horizons (PRNHX): 0.76% expense ratio and 0.64% management fee. PRNHX is a Small Cap Growth mutual fund and tends to feature small companies in up-and-coming industries and markets. The fund is mainly invested in equities, has a long reputation of salutary performance, and has yearly returns of 18.88% over the last five years.

There you have it. If your financial advisor had you put your money into any of our "Magnificent Retirement Mutual Funds," then they've got you covered. If not, you may need to talk.

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