American Century Investment is one of the world’s leading asset management firms, providing services to both individual and institutional investors. It takes a long-term view of investments that allows it to be closely aligned to stated investment objectives. American Century prides itself in having a team-managed approach and contributes a significant share of profits to advanced medical research. Founded in 1958 by Jim Stowers, the company offers an array of products and services across a variety of asset classes. The company manages over 80 no-load funds including stock, bond, asset allocation and money market funds. Below we share with you four top-rated American Century mutual funds. Each has earned a Zacks Mutual Fund Rank #1 (Strong Buy) and is expected to outperform its peers in the future. To view the Zacks Rank and past performance of all American Century mutual funds, investors can click here to see the complete list of American Century funds . American Century Global Gold Investor (BGEIX) invests in securities of global companies whose operations are related to gold or other precious metals. BGEIX invests the lion’s share of its assets in companies involved in processing, mining, fabricating and distributing gold or other precious metals. The American Century Global Gold Investor has a one-year return of almost 29.7%. As of December 2015, BGEIX held 63 issues with 7.85% of its assets invested in Franco-Nevada Corp. American Century International Bond Investor (BEGBX) seeks total return. BEGBX invests a large chunk of its assets in foreign debt securities. The fund may also invest securities issued in emerging market. Moreover, BEGBX can also invest in securities that are rated non-investment grade. American Century International Bond Investor has a one-year return of almost 6.4%. BEGBX has an expense ratio of 0.81% as compared to the category average of 1.02%. American Century Mid Cap Value Investor (ACMVX) invests a major portion of its assets in securities of mid-cap companies. ACMVX seeks to follow the capitalization range of the Russell 3000 Index in order to select medium-size companies. American Century Mid Cap Value Investor has a one-year return of almost 4.5%. Kevin N. Toney is one of the fund managers of ACMVX since 2004. American Century Equity Income Investor (TWEIX) invests generally in equity securities of companies with a strong record of income payments. TWEIX also focuses on acquiring securities of companies that are believed to be undervalued. The fund may also invest in securities of non-US companies. American Century Equity Income Investor has a one-year return of almost 8%. TWEIX has an expense ratio of 0.93% as compared to the category average of 1.10%. To view the Zacks Rank and past performance of all American Century mutual funds, investors can click here to see the complete list of funds . About Zacks Mutual Fund Rank By applying the Zacks Rank to mutual funds, investors can find funds that not only outpaced the market in the past but are also expected to outperform going forward. Learn more about the Zacks Mutual Fund Rank at http://www.zacks.com/funds. Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Get Your Free (BGEIX): Fund Analysis Report Get Your Free (BEGBX): Fund Analysis Report Get Your Free (ACMVX): Fund Analysis Report Get Your Free (TWEIX): Fund Analysis Report To read this article on Zacks.com click here. Zacks Investment Research