Mortgage Fund
Data updated: 2026-08-27
C000099204 — Mortgage Fund. Long Securitized (MBS/ABS/CMBS) Bond · $105.82M AUM · 0.56% expense ratio. Holdings, fees, performance and SEC filings.
C000099204 Fund Overview
Mortgage Fund is a US mutual fund managed by American Funds Insurance Series, categorised as Long Securitized (MBS/ABS/CMBS) Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: American Funds Insurance Series
- Category: Long Securitized (MBS/ABS/CMBS) Bond
- Assets under management: $105.82M
- 1-year return: 3.6%
- SEC CIK: 0000729528
- SEC series ID: S000031860
- Share class ID: C000099204
C000099204 Investment Objective and Strategy
Mortgage Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by American Funds Insurance Series.
Investment objective
The funds investment objective is to provide current income and preservation of capital.
Principal investment strategy
Normally at least 80% of the funds assets are invested in mortgage-related securities, including securities collateralized by mortgage loans and contracts for future delivery of such securities (such as to be announced contracts and mortgage dollar rolls). The fund invests primarily in mortgage-related securities that are sponsored or guaranteed by the U.S. government, such as securities issued by government-sponsored entities that are not backed by the full faith and credit of the U.S. government, and nongovernment mortgage-related securities that are rated in the Aaa or AAA rating category (by Nationally Recognized Statistical Rating Organizations designated by the funds investment adviser) or unrated but determined to be of equivalent quality by the funds investment adviser. The fund may also invest in debt issued by federal agencies.
In the case of to be announced contracts, each contract for future delivery is normally of short duration. The fund may also invest in futures contracts and swaps, which are types of derivatives. A derivative is a financial contract, the value of which is based on the value of an underlying financial asset (such as a stock, bond or currency), a reference rate or a market index. The investment adviser uses a system of multiple portfolio managers in managing the funds assets. Under this approach, the portfolio of the fund is divided into segments managed by individual managers. The fund relies on the professional judgment of its investment adviser to make decisions about the funds portfolio investments. The basic investment philosophy of the investment adviser is to seek to invest in attractively priced securities that, in its opinion, represent good, long-term investment opportunities.
Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities.
C000099204 Holdings
Top 10 holdings of Mortgage Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Federal Home Loan Banks | 2.44% |
| Uniform Mbs | 2.28% |
| Federal Home Loan Banks | 2.26% |
| Uniform Mbs | 2.22% |
| Federal Farm Credit Banks Funding Corp. | 2.16% |
| Federal Home Loan Banks | 1.97% |
| Uniform Mbs | 1.94% |
| Federal Home Loan Banks | 1.89% |
| Prudential Funding LLC | 1.89% |
| Apple, Inc. | 1.88% |
C000099204 Portfolio Allocation
Asset-class allocation of Mortgage Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 67.5% |
| Fixed Income | 38.4% |
| Real Estate | 0.3% |
C000099204 Performance
Total returns for C000099204 (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.2% |
| 1 year | 3.6% |
| 3 years (annualised) | 4.1% |
| 5 years (annualised) | 0.5% |
C000099204 Risk Information
Risk metrics for C000099204, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.3%
C000099204 Costs and Fees
C000099204 costs about $56 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.56%
- Gross expense ratio: 0.64%
- Portfolio turnover: 421%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000099204 Cashflows
Over the 12 months to 2026-06, Mortgage Fund had net outflows of $10.54M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $1.67M |
| 2026-05 | −$4.33M |
| 2026-04 | $904.43K |
| 2026-03 | −$17.16M |
| 2026-02 | −$268.89K |
| 2026-01 | $487.63K |
C000099204 Debt Constituents
Largest debt holdings of Mortgage Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Federal Home Loan Banks | 2.44% |
| Federal Home Loan Banks | 2.26% |
| Federal Farm Credit Banks Funding Corp. | 2.16% |
| Federal Home Loan Banks | 1.97% |
| Federal Home Loan Banks | 1.89% |
| Prudential Funding LLC | 1.89% |
| Apple, Inc. | 1.88% |
| Federal Home Loan Banks | 1.86% |
| United States Treasury | 1.63% |
| Eli Lilly And Co. | 1.51% |
C000099204 Prospectus and SEC Filings
Official Mortgage Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-30
- Prospectus (485BPOS) — filed 2025-04-30
- Prospectus (485BPOS) — filed 2024-04-30
- Portfolio holdings (N-PORT) — filed 2026-08-27
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-03-16
- Annual census (N-CEN) — filed 2025-03-17
Related Funds
Other Long Securitized (MBS/ABS/CMBS) Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.