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ISIN
US0250816057
CUSIP
025081605
Inception Date
Sep 22, 1985
Min. Investment
$2,500
Distribution Policy
Distributing
Asset Class
Bond
Assets Under Management
$344M

Share Price Chart


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Performance

BGNMX Performance Chart

American Century Ginnie Mae Fund (BGNMX) is up 0.9% since the beginning of the year. BGNMX is currently trading at $9 per share. Investors who bought $1,000 worth of BGNMX shares 5 years ago would now be looking at an investment worth $998.


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S&P 500 Index

Returns By Period

American Century Ginnie Mae Fund (BGNMX) has returned 0.85% so far this year and 5.65% over the past 12 months. Over the last ten years, BGNMX has returned 0.89% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.


American Century Ginnie Mae Fund

1D
0.33%
1M
0.89%
YTD
0.85%
6M
1.18%
1Y
5.65%
3Y*
3.76%
5Y*
-0.05%
10Y*
0.89%

Benchmark (S&P 500 Index)

1D
-0.37%
1M
-0.01%
YTD
9.16%
6M
8.64%
1Y
25.22%
3Y*
19.78%
5Y*
11.99%
10Y*
13.88%
*Multi-year figures are annualized to reflect compound growth (CAGR)

BGNMX Monthly Returns History

Based on dividend-adjusted daily data since Sep 23, 1985, BGNMX's average daily return is +0.02%, while the average monthly return is +0.33%. At this rate, an investment would double in approximately 17.5 years.

Historically, 66% of months were positive and 34% were negative. The best month was Nov 2023 with a return of +5.0%, while the worst month was Sep 2022 at -5.3%. The longest winning streak lasted 18 consecutive months, and the longest losing streak was 9 months.

On a daily basis, BGNMX closed higher 40% of trading days. The best single day was Oct 22, 1987 with a return of +5.4%, while the worst single day was Sep 26, 2022 at -2.0%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.66%1.54%-1.54%0.11%0.11%0.00%0.85%
20250.44%2.37%-0.02%0.21%-0.90%1.70%-0.45%1.68%0.89%0.77%0.55%0.00%7.43%
2024-0.62%-1.50%0.85%-2.76%1.84%0.98%2.49%1.55%0.95%-2.86%1.24%-1.47%0.52%
20233.16%-2.47%2.07%0.46%-0.83%-0.50%-0.19%-0.84%-3.34%-1.94%5.00%4.44%4.72%
2022-1.11%-0.52%-2.80%-3.28%1.13%-1.88%2.55%-3.01%-5.25%-1.24%4.05%-1.05%-12.06%
2021-0.28%-0.22%-0.23%0.26%-0.52%-0.14%0.25%-0.07%-0.17%-0.35%-0.12%-0.21%-1.79%

Benchmark Metrics

American Century Ginnie Mae Fund has an annualized alpha of 3.94%, beta of 0.01, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since September 23, 1985.

  • This fund captured 11.53% of S&P 500 Index gains and tended to rise during its downturns (downside capture of -2.85%) - a profile typical of hedging or uncorrelated assets.
  • Beta of 0.01 may look defensive, but with R2 of 0.00 this fund is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
  • R2 of 0.00 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
3.94%
Beta
0.01
0.00
Upside Capture
11.53%
Downside Capture
-2.85%

Expense Ratio

BGNMX has an expense ratio of 0.55%, placing it in the medium range.


Return for Risk

Risk / Return Rank

BGNMX ranks 28 for risk / return — below 28% of mutual funds on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.


BGNMX Risk / Return Rank: 2828
Overall Rank
BGNMX Sharpe Ratio Rank: 2929
Sharpe Ratio Rank
BGNMX Sortino Ratio Rank: 3030
Sortino Ratio Rank
BGNMX Omega Ratio Rank: 2929
Omega Ratio Rank
BGNMX Calmar Ratio Rank: 2828
Calmar Ratio Rank
BGNMX Martin Ratio Rank: 2727
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for American Century Ginnie Mae Fund (BGNMX) and compare them to S&P 500 Index.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.


BGNMXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.60

Sortino ratioReturn per unit of downside risk

-0.63

Omega ratioGain probability vs. loss probability

1.26

1.37

-0.10

Calmar ratioReturn relative to maximum drawdown

1.88

2.78

-0.90

Martin ratioReturn relative to average drawdown

5.96

12.44

-6.48

Dividends

Dividend History

American Century Ginnie Mae Fund provided a 3.93% dividend yield over the last twelve months, with an annual payout of $0.35 per share. The fund has been increasing its distributions for 4 consecutive years.


2.00%2.50%3.00%3.50%4.00%$0.00$0.05$0.10$0.15$0.20$0.25$0.30$0.3520152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.35$0.35$0.32$0.29$0.17$0.17$0.23$0.28$0.27$0.25$0.25$0.25

Dividend yield

3.93%3.86%3.70%3.21%1.90%1.64%2.16%2.68%2.65%2.37%2.37%2.37%

Monthly Dividends

The table displays the monthly dividend distributions for American Century Ginnie Mae Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.03$0.03$0.03$0.03$0.03$0.00$0.15
2025$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.35
2024$0.02$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.32
2023$0.02$0.02$0.03$0.02$0.02$0.03$0.02$0.03$0.03$0.03$0.03$0.03$0.29
2022$0.02$0.02$0.02$0.02$0.02$0.00$0.00$0.02$0.00$0.02$0.02$0.03$0.17
2021$0.00$0.02$0.02$0.02$0.02$0.02$0.02$0.01$0.01$0.01$0.02$0.02$0.17

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the American Century Ginnie Mae Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the American Century Ginnie Mae Fund was 18.46%, occurring on Oct 19, 2023. The portfolio has not yet recovered.

The current American Century Ginnie Mae Fund drawdown is 1.50%.


Related event

Drawdown

Fall

Recovery

Underwater

2023 correction2023
-18.46%Oct 2023
2y 9mo
5y 5moJan 2021 - now
Black Monday1987
-12.32%Oct 1987
6mo 27d2y 9mo
3y 4moMar 1987 - Jul 1990
1994 pullback1994
-5.20%May 1994
3mo 7d9mo
1y 2dFeb 1994 - Feb 1995
2013 pullback2013
-5.19%Sep 2013
4mo 6d11mo 28d
1y 3moMay 2013 - Aug 2014
1986 pullback1986
-4.86%Jun 1986
1mo 15d6mo 2d
7mo 17dApr 1986 - Dec 1986

Drawdown Indicators


BGNMXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-18.46%

-56.78%

+38.32%

Max Drawdown (1Y)

Largest decline over 1 year

-3.07%

-9.10%

+6.03%

Max Drawdown (3Y)

Largest decline over 3 years

-7.78%

-18.90%

+11.12%

Max Drawdown (5Y)

Largest decline over 5 years

-17.74%

-25.43%

+7.69%

Max Drawdown (10Y)

Largest decline over 10 years

-18.46%

-33.92%

+15.46%

Current Drawdown

Current decline from peak

-1.50%

-1.80%

+0.30%

Average Drawdown

Average peak-to-trough decline

-2.03%

-10.71%

+8.68%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.97%

2.03%

-1.06%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

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