DFCFX vs. TFBYX

Last updated Aug 4, 2026

DFCFX (DFA Two-Year Fixed Income Portfolio) and TFBYX (American Beacon TwentyFour Sustainable Short Term Bond Fund) are both Short-Term Bond funds. Over the past 5 years, DFCFX returned 3.87%/yr vs 2.94%/yr for TFBYX. Their 0.21 correlation means their historical movements had little consistent relationship. DFCFX charges 0.21%/yr vs 0.57%/yr for TFBYX.

Performance

DFCFX vs. TFBYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in DFA Two-Year Fixed Income Portfolio (DFCFX) and American Beacon TwentyFour Sustainable Short Term Bond Fund (TFBYX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DFCFX achieves a 1.92% return, which is significantly higher than TFBYX's 0.98% return.

DFCFX

• 1D: -0.10%
• 1M: 0.10%
• 6M: 1.50%
• YTD: 1.92%
• 1Y: 3.71%
• 3Y*: 3.94%
• 5Y*: 3.87%
• 10Y*: 2.51%
• ALL TIME*: 2.77%

TFBYX

• 1D: 0.00%
• 1M: -0.45%
• 6M: 0.42%
• YTD: 0.98%
• 1Y: 2.98%
• 3Y*: 5.50%
• 5Y*: 2.94%
• 10Y*: —
• ALL TIME*: 2.91%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
DFCFX DFA Two-Year Fixed Income Portfolio	$0.00	$0.00	$0.00
TFBYX American Beacon TwentyFour Sustainable Short Term Bond Fund	$0.00	$0.00	$0.00

DFCFX vs. TFBYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
DFCFX DFA Two-Year Fixed Income Portfolio	1.92%	2.28%	5.33%	4.92%	-3.28%	8.60%	0.36%
TFBYX American Beacon TwentyFour Sustainable Short Term Bond Fund	0.98%	5.58%	5.81%	7.22%	-3.86%	0.70%	2.74%

Correlation

The correlation between DFCFX and TFBYX is 0.06, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.06
Correlation (3Y) Balances recent behavior with more history.	0.03
Correlation (5Y) Shows whether the relationship held over a longer period.	0.22
Correlation (All Time) Calculated using the full available price history since Feb 19, 2020	0.21

The correlation between DFCFX and TFBYX shifts across timeframes, from 0.03 (3 years) to 0.22 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

DFCFX vs. TFBYX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

DFCFX

DFCFX Risk / Return Rank: 100
DFCFX Sharpe Ratio Rank: 100
DFCFX Sortino Ratio Rank: 100
DFCFX Omega Ratio Rank: 100
DFCFX Calmar Ratio Rank: 100
DFCFX Martin Ratio Rank: 100

TFBYX

TFBYX Risk / Return Rank: 60
TFBYX Sharpe Ratio Rank: 62
TFBYX Sortino Ratio Rank: 68
TFBYX Omega Ratio Rank: 81
TFBYX Calmar Ratio Rank: 47
TFBYX Martin Ratio Rank: 42

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

DFCFX vs. TFBYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for DFA Two-Year Fixed Income Portfolio (DFCFX) and American Beacon TwentyFour Sustainable Short Term Bond Fund (TFBYX). 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.

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.

	DFCFX	TFBYX	Difference
Sharpe ratio: Return per unit of total volatility	5.17	1.62	+3.54
Sortino ratio: Return per unit of downside risk	11.04	2.45	+8.59
Omega ratio: Gain probability vs. loss probability	5.05	1.39	+3.66
Calmar ratio: Return relative to maximum drawdown	18.12	1.95	+16.17
Martin ratio: Return relative to average drawdown	108.51	6.43	+102.09

DFCFX vs. TFBYX - Sharpe Ratio Comparison

The current DFCFX Sharpe Ratio is 5.17, which is higher than the TFBYX Sharpe Ratio of 1.62. The chart below compares the historical Sharpe Ratios of DFCFX and TFBYX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

DFCFX vs. TFBYX - Drawdown Comparison

The maximum DFCFX drawdown since its inception was -4.27%, smaller than the maximum TFBYX drawdown of -7.41%. Use the drawdown chart below to compare losses from any high point for DFCFX and TFBYX.

Drawdown Indicators

	DFCFX	TFBYX	Difference
Max Drawdown Largest peak-to-trough decline	-4.27%	-7.41%	+3.14%
Max Drawdown (1Y) Largest decline over 1 year	-0.21%	-1.60%	+1.39%
Max Drawdown (3Y) Largest decline over 3 years	-1.33%	-1.60%	+0.27%
Max Drawdown (5Y) Largest decline over 5 years	-4.27%	-7.41%	+3.14%
Max Drawdown (10Y) Largest decline over 10 years	-4.27%	—	—
Current Drawdown Current decline from peak	-0.10%	-0.45%	+0.35%
Average Drawdown Average peak-to-trough decline	-0.26%	-1.13%	+0.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.03%	0.48%	-0.45%

Volatility

DFCFX vs. TFBYX - Volatility Comparison

The current volatility for DFA Two-Year Fixed Income Portfolio (DFCFX) is 0.33%, while American Beacon TwentyFour Sustainable Short Term Bond Fund (TFBYX) has a volatility of 0.47%. This indicates that DFCFX experiences smaller price fluctuations and is considered to be less risky than TFBYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DFCFX	TFBYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.33%	0.47%	-0.14%
Volatility (6M) Calculated over the trailing 6-month period	0.58%	1.70%	-1.12%
Volatility (1Y) Calculated over the trailing 1-year period	0.73%	1.91%	-1.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.39%	1.65%	+2.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.13%	1.67%	+1.46%

DFCFX vs. TFBYX - Expense Ratio Comparison

DFCFX has a 0.21% expense ratio, which is lower than TFBYX's 0.57% expense ratio.

Dividends

DFCFX vs. TFBYX - Dividend Comparison

DFCFX's dividend yield for the trailing twelve months is around 3.86%, more than TFBYX's 3.41% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFCFX DFA Two-Year Fixed Income Portfolio	3.86%	2.16%	4.90%	3.43%	1.32%	8.29%	0.67%	2.22%	1.87%	1.22%	0.79%	0.53%
TFBYX American Beacon TwentyFour Sustainable Short Term Bond Fund	3.41%	3.84%	3.79%	3.73%	12.53%	3.07%	2.17%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DFCFX and TFBYX in my portfolio?

DFCFX and TFBYX have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DFCFX or TFBYX?

TFBYX has higher volatility (0.47%) compared to DFCFX (0.33%). In terms of maximum drawdown, DFCFX dropped -4.27% vs TFBYX's -7.41%.

Which has better risk-adjusted returns?

DFCFX currently has the higher Sharpe Ratio (5.17 vs 1.62), 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.