Fund Evaluator:
American Century Heritage Inv (TWHIX)Best Performing in Mid-Cap Growth Over the Last Year
| 62.2% | PRIMECAP Odyssey Aggressive Growth (POAGX) |
| 39.7% | Eventide Gilead N (ETGLX) |
| 33.9% | Sit Small Cap Growth (SSMGX) |
| 32.9% | Goldman Sachs Small/Mid Cap Growth Inv (GTMTX) |
| 31.1% | T. Rowe Price New Horizons Z (TRUZX) |
Fund Details
American Century Heritage Inv Overview
American Century Heritage Inv (TWHIX) is an actively managed U.S. Equity Mid-Cap Growth fund. American Century Investments launched the fund in 1987.
The investment seeks long-term capital growth. The fund normally invests in stocks of medium-sized companies that the adviser believes will increase in value over time, using an investment strategy developed by the fund's investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that durable franchises in a growing industry can sustain above average earnings growth.
About American Century Heritage Inv (TWHIX)
There are 2 members of the management team with an average tenure of 5.73 years: Nalin Yogasundram (2016), Rahul Jadhav (2025). Management tenure is more important for actively managed funds than passive index funds.
The fund has 2 primary benchmarks: Russell 3000 TR USD index with a weighting of 100% and Russell Mid Cap Growth TR USD index with a weighting of 100%. American Century Heritage Inv has 83 securities in its portfolio. The top 10 holdings constitute 30.3% of the fund’s assets. The fund meets the SEC requirement of being classified as a diversified fund. The fund is not considered to have an ESG focus with its investment selection and management.
American Century Heritage Inv is part of the Equity global asset class and is within the U.S. Equity fund group. American Century Heritage Inv has 1.7% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 96.3%. There is 1.7% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). American Century Heritage Inv has 2.0% of the portfolio in cash.
Assets Under Management
The fund has $4 billion in total assets, which is above the $686 million average for the Mid-Cap Growth category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
TWHIX Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The American Century Heritage Inv expense ratio is high compared to funds in the Mid-Cap Growth category. American Century Heritage Inv has an expense ratio of 1.00%, which is 9% lower than its category average, making the fund expense ratio grade a C. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. American Century Heritage Inv has a portfolio turnover rate of 62%, indicating that holds its assets around 0.0 years. By way of comparison, the average portfolio turnover is 76% for the Mid-Cap Growth category.
Recently, in the month of June 2026, American Century Heritage Inv returned 2.7%, which earned it a grade of D, as the Mid-Cap Growth category had an average return of 3.7%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all funds in that category.
American Century Heritage Inv has a trailing yield of 0.00%, which is below the 0.03% category average. The fund normally distributes its income annually and its capital gains annually.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
American Century Heritage Inv Grades
Year to date, the fund has returned 8.6%, 3.2 percentage points worse than the category, which translates into a grade of D. The fund has returned 5.5% over the past year (grade of D), 15.1% over the past three years (grade of C) and 5.0% per year over the past five years (grade of B) and 12.3% per year over the past 10 years (grade of C).
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TWHIX Trailing NAV Total Returns Data as of 6/30/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| TWHIX Return (NAV) | 2.7% | 16.3% | 5.5% | 15.1% | 5.0% | 12.3% |
| TWHIX Grade | D | C | D | C | B | C |
| +/- Category | -1.0% | -0.8% | -7.7% | 1.5% | 1.1% | 0.3% |
| Mid-Cap Growth Avg | 3.7% | 17.1% | 13.2% | 13.6% | 3.9% | 12.0% |
| TWHIX Tax Cost Ratio | na | na | 4.9% | 2.9% | 2.4% | 2.6% |
TWHIX Annual NAV Total ReturnsData as of 6/30/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| TWHIX Return (NAV) | 8.6% | 6.6% | 24.8% | 20.6% | -28.1% | 11.1% | 42.5% | 35.5% | -5.2% | 21.8% | 3.2% |
| TWHIX Grade | D | C | A | C | C | C | B | B | C | D | D |
| +/- Category | -3.2% | 0.7% | 7.6% | -0.1% | -0.1% | -1.3% | 2.2% | 1.5% | -0.5% | -3.5% | -2.1% |
| Mid-Cap Growth Avg | 11.8% | 5.9% | 17.2% | 20.7% | -28.0% | 12.4% | 40.3% | 34.0% | -4.6% | 25.3% | 5.3% |
| Risk Measures | |
| Standard Deviation: | 18.3% |
| Total Risk Index: | 1.51 - High |
| Category Risk Index: | 0.99 - Average |
| Category Risk Grade: | C (57% Rank) |
| Beta: | 1.21 |
| R-Squared: | 75% |
| Leveraged Fund: | No |
| Inverse Fund: | No |
| Portfolio Characteristics | |
| Equity Investment Style: | Mid-Cap Growth |
| Bond Investment Style: | na |
| Yield: | 0.0% |
| Dividend Distribution: | Annually |
| Cap Gains Distribution: | Annually |
| Total Assets: | $5673 Mil |
| Fund Total Assets: | $4,101 Mil |
| Share Class Type: | Inv |
| Portfolio Turnover: | 62% |
Management Team
| Number of Managers: 2 | |||
| Longest Tenure: 10.3 years | |||
| Average Tenure: 5.7 years | |||
| Managers (Year): Yogasundram Nalin (2016), Jadhav Rahul (2025) | |||
Portfolio Composition (as of 3/31/26)
| # of Holdings: | 83 |
| % in Top 10 Holdings: | 30.3% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 1.7% |
Portfolio Allocation |
|
| Domestic Stock: | 96.3% |
| Foreign Stock: | 1.7% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 2.0% |
Purchase Information
| Fund Family: | American Century Investments |
| Phone Number: | 800-345-2021 |
| Website: | www.americancentury.com |
| Status: | Open |
| Inception Date: | November 10, 1987 |
| Min. Initial Purchase: | $2,500 |
| Min. Initial IRA Purchase: | $1,000 |
| True No-Load: | Yes |
| Front Load Maximum: | 0.00% |
| Deferred Charge Maximum: | 0.00% |
| Redemption Charge Maximum: | 0.00% |
| 12b-1 Fee: | na |
Expenses and Fees | |
| Expense Ratio (%): | 1.00% ( Rating : High ) |
| Category Average Expense Ratio (%): | 1.09% |
| Share Class: | American Century Heritage Inv |
| Min. Subsequent Purchase: | $ 50 |
| Min. Subsequent IRA Purchase: | $ 0 |