SFITX vs. BGNMX

Last updated Jun 4, 2026

SFITX (State Farm Interim Fund) and BGNMX (American Century Ginnie Mae Fund) are both Government Bonds funds. Over the past 10 years, SFITX returned 1.35%/yr vs 0.88%/yr for BGNMX. A 0.73 correlation means they provide meaningful diversification when combined. SFITX charges 0.16%/yr vs 0.55%/yr for BGNMX.

Performance

SFITX vs. BGNMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Farm Interim Fund (SFITX) and American Century Ginnie Mae Fund (BGNMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SFITX achieves a 0.09% return, which is significantly lower than BGNMX's 0.74% return. Over the past 10 years, SFITX has outperformed BGNMX with an annualized return of 1.35%, while BGNMX has yielded a comparatively lower 0.88% annualized return.

SFITX

• 1D: 0.00%
• 1M: 0.00%
• YTD: 0.09%
• 6M: 0.40%
• 1Y: 3.30%
• 3Y*: 3.45%
• 5Y*: 0.93%
• 10Y*: 1.35%

BGNMX

• 1D: 0.00%
• 1M: 0.33%
• YTD: 0.74%
• 6M: 0.73%
• 1Y: 6.25%
• 3Y*: 3.80%
• 5Y*: -0.11%
• 10Y*: 0.88%

*Multi-year figures are annualized to reflect compound growth (CAGR)

SFITX vs. BGNMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SFITX State Farm Interim Fund	0.09%	5.41%	2.54%	3.73%	-5.88%	-1.60%	4.89%	4.26%	1.04%	0.61%
BGNMX American Century Ginnie Mae Fund	0.74%	7.43%	0.52%	4.72%	-12.06%	-1.79%	3.73%	6.17%	0.44%	1.22%

Correlation

The correlation between SFITX and BGNMX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.81
Correlation (5Y) Calculated over the trailing 5-year period	0.83
Correlation (10Y) Calculated over the trailing 10-year period	0.76
Correlation (All Time) Calculated using the full available price history since Jan 3, 1990	0.73

The correlation between SFITX and BGNMX has been stable across timeframes, ranging from 0.73 to 0.83 - a consistent structural relationship.

Return for Risk

SFITX vs. BGNMX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SFITX

SFITX Risk / Return Rank: 30
SFITX Sharpe Ratio Rank: 25
SFITX Sortino Ratio Rank: 33
SFITX Omega Ratio Rank: 29
SFITX Calmar Ratio Rank: 33
SFITX Martin Ratio Rank: 28

BGNMX

BGNMX Risk / Return Rank: 29
BGNMX Sharpe Ratio Rank: 29
BGNMX Sortino Ratio Rank: 29
BGNMX Omega Ratio Rank: 29
BGNMX Calmar Ratio Rank: 30
BGNMX Martin Ratio Rank: 30

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.

SFITX vs. BGNMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Farm Interim Fund (SFITX) and American Century Ginnie Mae Fund (BGNMX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	SFITX	BGNMX	Difference
Sharpe ratio: Return per unit of total volatility	1.44	1.54	-0.10
Sortino ratio: Return per unit of downside risk	2.40	2.28	+0.12
Omega ratio: Gain probability vs. loss probability	1.29	1.28	0.00
Calmar ratio: Return relative to maximum drawdown	2.18	2.04	+0.14
Martin ratio: Return relative to average drawdown	6.51	6.89	-0.38
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SFITX vs. BGNMX - Sharpe Ratio Comparison

The current SFITX Sharpe Ratio is 1.44, which is comparable to the BGNMX Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of SFITX and BGNMX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SFITX	BGNMX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.44	1.54	-0.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.31	-0.02	+0.32
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.55	0.18	+0.37
Sharpe Ratio (All Time) Calculated using the full available price history	1.04	0.94	+0.10

Drawdowns

SFITX vs. BGNMX - Drawdown Comparison

The maximum SFITX drawdown since its inception was -9.13%, smaller than the maximum BGNMX drawdown of -18.46%. Use the drawdown chart below to compare losses from any high point for SFITX and BGNMX.

Drawdown Indicators

	SFITX	BGNMX	Difference
Max Drawdown Largest peak-to-trough decline	-9.13%	-18.46%	+9.33%
Max Drawdown (1Y) Largest decline over 1 year	-1.53%	-3.07%	+1.54%
Max Drawdown (3Y) Largest decline over 3 years	-1.80%	-7.78%	+5.98%
Max Drawdown (5Y) Largest decline over 5 years	-8.78%	-17.74%	+8.96%
Max Drawdown (10Y) Largest decline over 10 years	-9.13%	-18.46%	+9.33%
Current Drawdown Current decline from peak	-0.81%	-1.61%	+0.80%
Average Drawdown Average peak-to-trough decline	-1.09%	-2.03%	+0.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.51%	0.91%	-0.40%

Volatility

SFITX vs. BGNMX - Volatility Comparison

The current volatility for State Farm Interim Fund (SFITX) is 0.67%, while American Century Ginnie Mae Fund (BGNMX) has a volatility of 1.66%. This indicates that SFITX experiences smaller price fluctuations and is considered to be less risky than BGNMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SFITX	BGNMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.67%	1.66%	-0.99%
Volatility (6M) Calculated over the trailing 6-month period	1.66%	3.01%	-1.35%
Volatility (1Y) Calculated over the trailing 1-year period	2.32%	4.08%	-1.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.04%	6.45%	-3.41%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.48%	4.84%	-2.36%

SFITX vs. BGNMX - Expense Ratio Comparison

SFITX has a 0.16% expense ratio, which is lower than BGNMX's 0.55% expense ratio.

Dividends

SFITX vs. BGNMX - Dividend Comparison

SFITX's dividend yield for the trailing twelve months is around 3.69%, less than BGNMX's 3.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BGNMX American Century Ginnie Mae Fund	3.94%	3.86%	3.70%	3.21%	1.90%	1.64%	2.16%	2.68%	2.65%	2.37%	2.37%	2.37%
SFITX State Farm Interim Fund	3.69%	3.28%	2.72%	1.85%	0.92%	0.94%	2.13%	1.75%	1.12%	1.12%	0.79%	0.98%

Frequently Asked Questions

Can I hold both SFITX and BGNMX in my portfolio?

SFITX and BGNMX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SFITX or BGNMX?

BGNMX has higher volatility (1.66%) compared to SFITX (0.67%). In terms of maximum drawdown, SFITX dropped -9.13% vs BGNMX's -18.46%.

Which has better risk-adjusted returns?

BGNMX currently has the higher Sharpe Ratio (1.54 vs 1.44), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.