FFMFX Performance — American Funds Mortgage Fund, Class 529-F-2

Data updated: 2026-07-29

FFMFX returned +0.08% year to date and +5.45% over one year to May 2026. Annualised returns are +3.73% over 3 years and +0.60% over 5 years. The fund trailed its Intermediate Securitized Bond category average: $100 invested three years ago grew to $112, against $116 for the category, and to $105 over one year, against $106. Volatility over the past three years was 6.17% a year. In the 12 months to May 2026 the fund took in a net $1.7B, and assets reached $13.08B.

FFMFX Growth of $100

What $100 invested in American Funds Mortgage Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Securitized Bond category average over the same months.

PeriodFFMFXCategory average
1 year (Jun 2025 – May 2026)$105$106
3 years (Jun 2023 – May 2026)$112$116
5 years (Jun 2021 – May 2026)$103$105
Since data start (Sep 2020 – May 2026)$103$107

FFMFX Trailing Returns

Total returns to May 2026, from SEC N-PORT.

PeriodTotal return
YTD+0.08%
1 year+5.45%
3 years (annualised)+3.73%
5 years (annualised)+0.60%

FFMFX Annual Returns

Calendar-year total returns of American Funds Mortgage Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.

YearTotal return
2026 (Jan–May)+0.08%
2025+8.73%
2024+0.70%
2023+4.02%
2022−9.87%
2021−0.44%
2020 (Sep–Dec)+0.49%

FFMFX Monthly Returns

Monthly total returns as reported on SEC Form N-PORT.

YearJanFebMarAprMayJunJulAugSepOctNovDec
2026+0.1%+1.6%−1.7%0.0%+0.1%———————
2025+0.6%+2.5%+0.3%+1.1%−1.2%+1.8%−0.5%+1.8%+0.8%+0.7%+0.6%+0.1%
2024−0.2%−1.9%+0.8%−2.9%+1.9%+1.1%+2.5%+1.6%+1.3%−3.1%+1.1%−1.4%
2023+2.9%−2.7%+2.6%+0.5%−1.1%−1.1%−0.2%−0.6%−2.7%−2.0%+5.0%+3.7%
2022−1.0%−0.5%−2.5%−2.6%+0.8%−1.2%+2.5%−2.7%−4.7%−1.3%+3.8%−0.6%
2021−0.1%−0.7%−0.4%+0.5%−0.1%+0.1%+0.6%−0.1%−0.4%0.0%+0.1%−0.1%
2020————————0.0%0.0%+0.3%+0.1%

FFMFX Risk

Risk measures from monthly returns over Jun 2023 – May 2026.

  • 3-year volatility (annualised): 6.17%
  • 3-year Sharpe ratio: -0.12 (vs 4.5% risk-free rate)
  • Best month: +4.98% (Nov 2023)
  • Worst month: −3.05% (Oct 2024)

FFMFX Fund Flows

Monthly money in and out of American Funds Mortgage Fund, from SEC Form N-PORT.

  • 12-month net flow: $1.7B
  • 12-month gross sales (incl. reinvestments): $2.8B
  • Sales ÷ redemptions: 2.49×
MonthSalesRedemptionsNet flow
May 2026$195.6M$49.1M$146.5M
Apr 2026$549.9M$130.7M$419.2M
Mar 2026$114.3M$326.1M−$211.8M
Feb 2026$93.3M$100.0M−$6.7M
Jan 2026$717.6M$99.7M$618.0M
Dec 2025$199.0M$52.9M$146.1M
Nov 2025$136.2M$106.8M$29.4M
Oct 2025$160.0M$56.3M$103.7M
Sep 2025$151.5M$62.0M$89.5M
Aug 2025$137.9M$64.3M$73.6M
Jul 2025$204.1M$34.5M$169.6M
Jun 2025$105.9M$28.5M$77.4M

FFMFX Assets Under Management

Net assets of American Funds Mortgage Fund by report date, from SEC N-PORT filings.

Report dateNet assets
2026-05-31$13.08B
2026-02-28$13.08B
2025-11-30$12.22B
2025-08-31$11.88B
2025-05-31$11.34B
2025-02-28$11.70B
2024-11-30$11.23B
2024-08-31$11.00B
2024-05-31$10.37B
2024-02-29$10.28B
2023-11-30$9.54B
2023-08-31$9.30B

For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.