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Overview

Seeks highest return consistent with investment in U.S. Treasury securities by investing in zero-coupon bonds.

Key Facts
Investment Objective
Seeks the highest return consistent with investment in U.S. Treasury securities
Inception Date
02/15/1996
Morningstar Category
Short Government
Benchmark
11/15/25 STRIPS IssueA
Total Assets
$162,513,299
As of 01/31/2024
Total Holdings
16
As of 12/31/2023
Distribution Frequency
Annual
Morningstar Overall Rating
Based on risk-adjusted return
Out of 92 funds. Short Government category
As of 01/31/2024
Fees
Gross Expense Ratio
0.55%
Minimums
All Accounts
With $100 monthly automatic investment
$500
IRA & CESAs
With no automatic investment
$1,000
All other accounts
With no automatic investment
$2,500
Trading Information
Ticker
BTTRX
CUSIP
024935603

For each fund with at least a three-year history, Morningstar calculates a Morningstar Rating™ based on a Morningstar Risk-Adjusted Return measure that accounts for variation in a fund's monthly performance, placing more emphasis on downward variations and rewarding consistent performance.

Fixed Income Capabilities

Learn more about our full line-up of bond funds that pursue conviction-driven outperformance.

Performance

BTTRX
11/15/25 STRIPS IssueA

Data reflects past performance, assumes reinvestment of dividends and capital gains and is no guarantee of future results. Current performance may be higher or lower than data shown. Investment return and principal value fluctuates. Redemption value may be more or less than original cost. Returns less than one year are not annualized.

Average annual total returns illustrate the annual compounded returns that would have produced the cumulative total return if the fund's performance had remained constant throughout the period indicated. Returns for periods less than one year are not annualized. For periods prior to the inception of a class, performance is for the oldest class, restated with applicable fees, if any.

Zero Coupon 2025 Fund

11/15/25 STRIPS Issue

Data reflects past performance, assumes reinvestment of dividends and capital gains and is no guarantee of future results. Current performance may be higher or lower than data shown. Investment return and principal value fluctuates. Redemption value may be more or less than original cost. Returns less than one year are not annualized.

30-Day SEC Yield (Subsidized/Unsubsidized): Represents net investment income earned by a fund over a 30-day period, expressed as an annual percentage rate based on the fund's share price at the end of the 30-day period. Subsidized yield reflects fee waivers and/or expense reimbursements during the period. Without waivers and/or reimbursements, yields would be reduced. Unsubsidized yield does not adjust for any fee waivers and/or expense reimbursements in effect.

Yield to Worst: Lowest yield possible for a security given the current price, taking into account both call dates and maturity.

Yield to Maturity: The internal rate of return of the security based on the given market price—it is the single discount rate that equates a security price (inclusive of accrued interest) with its projected cashflows.

Data is not available at this time

Past performance is no guarantee of future results. Investment returns will fluctuate and it is possible to lose money.

Total Paid
Ordinary Dividends
Reinvest Price
12/08/2023
$4.3182
$4.3182
$102.67

Historical Distribution (CSV)

Ratings and Risk

As of 01/31/2024
Overall
Out of 92 funds. Short Government category
3 Year
Out of 92 funds
5 Year
Out of 87 funds
10 Year
Out of 78 funds

For each fund with at least a three-year history, Morningstar calculates a Morningstar Rating™ based on a Morningstar Risk-Adjusted Return measure that accounts for variation in a fund's monthly performance, placing more emphasis on downward variations and rewarding consistent performance.

The Morningstar Rating™ for funds, or "star rating", is calculated for managed products (including mutual funds, variable annuity and variable life subaccounts, exchange-traded funds, closed-end funds, and separate accounts) with at least a three-year history. Exchange-traded funds and open-ended mutual funds are considered a single population for comparative purposes. It is calculated based on a Morningstar Risk-Adjusted Return measure that accounts for variation in a managed product's monthly excess performance, placing more emphasis on downward variations and rewarding consistent performance. The Morningstar Rating does not include any adjustment for sales loads. The top 10% of products in each product category receive 5 stars, the next 22.5% receive 4 stars, the next 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. The Overall Morningstar Rating for a managed product is derived from a weighted average of the performance figures associated with its three-, five-, and 10-year (if applicable) Morningstar Rating metrics. The weights are: 100% three-year rating for 36-59 months of total returns, 60% five-year rating/40% three-year rating for 60-119 months of total returns, and 50% 10-year rating/30% five-year rating/20% three-year rating for 120 or more months of total returns. While the 10-year overall star rating formula seems to give the most weight to the 10- year period, the most recent three-year period actually has the greatest impact because it is included in all three rating periods.

Portfolio

As of 01/31/2024
% Portfolio
Due to rounding, these values may exceed 100%Negative weights may be due to open security or capital stock trades at period end and/or unrealized loss on derivative positions as a percent of net assets at period end.
As of 01/31/2024
Company
% Portfolio
United States Treasury Strip Coupon 0.00 11/15/2025
50.09%
RESOLUTION FUNDING STRIP US DOMESTIC
10.72%
RESOLUTION FUNDING STRIP US DOMESTIC
10.42%
RESOLUTION FUNDING STRIP US DOMESTIC
9.46%
RESOLUTION FUNDING STRIP US DOMESTIC
4.97%
RESOLUTION FUNDING STRIP US DOMESTIC
3.85%
TVA PRIN STRIP GLOBAL
3.41%
United States Treasury Strip Coupon 0.00 11/15/2026
2.69%
United States Treasury Strip Coupon 0.00 08/15/2025
1.61%
United States Treasury Strip Coupon 0.00 02/15/2026
0.79%
% of Top Portfolio Holdings
98.01%
Due to rounding, these values may exceed 100%Negative weights may be due to open security or capital stock trades at period end and/or unrealized loss on derivative positions as a percent of net assets at period end.
As of 01/31/2024
U.S. Government
99.70%
Cash and Cash Equivalents
0.30%
Due to rounding, these values may exceed 100%Negative weights may be due to open security or capital stock trades at period end and/or unrealized loss on derivative positions as a percent of net assets at period end.
As of 01/31/2024
0 - 1 Years
6.14%
1 - 3 Years
93.86%
Due to rounding, these values may exceed 100%Negative weights may be due to open security or capital stock trades at period end and/or unrealized loss on derivative positions as a percent of net assets at period end.
1.78 Years Weighted Average Life to Maturity
As of 01/31/2024
As of 01/31/2024
0 - 2.5%
100.00%
Due to rounding, these values may exceed 100%Negative weights may be due to open security or capital stock trades at period end and/or unrealized loss on derivative positions as a percent of net assets at period end.
As of 01/31/2024
0 - 2 Years
81.94%
2 - 4 Years
18.06%
Due to rounding, these values may exceed 100%Negative weights may be due to open security or capital stock trades at period end and/or unrealized loss on derivative positions as a percent of net assets at period end.
1.74 Years Average Effective Duration

Team

Robert Gahagan avatar
Robert Gahagan

Senior Vice President

Senior Portfolio Manager

Firm Start

1983


Industry Start

1983

Jim Platz, CFA avatar
Jim Platz, CFA

Vice President

Portfolio Manager

Firm Start

2003


Industry Start

1986

Miguel Castillo avatar
Miguel Castillo

Vice President

Portfolio Manager

Firm Start

2008


Industry Start

2002

Resources

Fund Literature
Fact Sheet

The fund invests primarily in zero-coupon U.S. Treasury securities and their equivalents, which can be subject to dramatic price fluctuations and could result in significant gains or losses if sold prior to maturity. Each Zero Coupon fund invests in different maturities of these debt securities and has different interest rate risks. The fund can only offer a relatively predictable return if held to maturity. Investment in zero-coupon securities is subject to greater price risk than interest-paying securities of similar maturity.

Although you can potentially earn a dependable return if you hold your shares to maturity, you should be prepared for dramatic price fluctuations which may result in significant gains or losses if sold prior to maturity.

Please see the prospectus for details about sales charges.

The gross expense ratio is the fund's total annual operating costs, expressed as a percentage of the fund's average net assets for a given time period. It is gross of any fee waivers or expense reimbursement. The net expense ratio is the expense ratio after the application of any waivers or reimbursement. This is the actual ratio that investors paid during the fund's most recent fiscal year. Please see the prospectus for more information.

Investor Class Shares: Minimum initial investment is $1,000 for IRA and CESA accounts, and $2,500 for non-retirement accounts, but these minimums are waived with an initial investment of at least $500 per account and automatic investments of at least $100 per month. Non-Retirement Accounts: If your account balance falls below the minimum, or if you cancel your automatic monthly investment plan prior to reaching the minimum, American Century Investments may redeem the account and send the proceeds to you. Prior to doing so, we will notify you and give you 90 days to meet the minimum or reinstate your automatic monthly investment plan.

11/15/2025 STRIPS Issue

A Treasury Interest STRIP Maturing in November 2025.

Investment Blend: Reflects the blend of securities owned by a fund. For example, the percentage of foreign or domestic stocks held by an equity fund or the percentage of corporate and government securities owned by a bond fund. The U.S./Foreign Convertibles grouping includes Convertible Bonds, Equity Linked Securities and Convertible Preferred securities.

Top Holdings: This value represents the top holdings included in the portfolio on a percent of assets basis. Equity holdings are grouped to include common shares, depository receipts, rights and warrants issued by the same company. Holdings are rounded to the nearest whole number, which may result in the display of less than ten holdings.

Quality: Describes the portfolio of the fund in terms of the quality ratings of the securities it holds. Cash and cash equivalents include payable amounts related to securities purchased but not settled at period end. Credit quality ratings on underlying securities of a fund are obtained from three Nationally Recognized Statistical Rating Organizations ("NRSROs"), Standard & Poor's, Moody's and Fitch. Ratings are converted to the equivalent Standard & Poor's rating category for purposes of presentation. The median rating is used for securities rated by all three NRSROs. The common rating is used when two of the three NRSROs agree. The lower rating is used when only two NRSROs rate a security. A "nonrated" designation is assigned when a public rating is not available for a security. This designation does not necessarily indicate low credit quality. The letter ratings are provided to indicate the credit worthiness of the underlying bonds in the portfolio and generally range from AAA (highest) to D (lowest). Includes payable amounts related to securities purchased but not settled at period end.

Maturity: Describes the portfolio of the fund in terms of the different maturities of the securities it holds.
Weighted Average Life to Maturity (WALM):
Is a measure of the sensitivity of a fixed income portfolio to interest rate changes. WALM is the average time in years to receive the principal repayments. Accordingly, WALM reflects how a portfolio would react to deteriorating credit or tightening liquidity conditions.

Coupon: Describes the portfolio of the fund in terms of the different coupons of the securities it holds.

Duration: Describes the portfolio of the fund in terms of the different durations of the securities it holds.

For detailed descriptions of indices or investing terms referenced above, refer to our glossary.

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