ENIAX vs. DFYGX

Last updated Jun 4, 2026

ENIAX (SEI Institutional Investments Trust Opportunistic Income Fund) and DFYGX (DFA Two-Year Government Portfolio) are both Ultrashort Bond funds. Over the past 10 years, ENIAX returned 4.17%/yr vs 1.43%/yr for DFYGX. At a 0.02 correlation, their price movements are largely independent. ENIAX charges 0.23%/yr vs 0.17%/yr for DFYGX.

Performance

ENIAX vs. DFYGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) and DFA Two-Year Government Portfolio (DFYGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ENIAX achieves a 1.52% return, which is significantly higher than DFYGX's 1.41% return. Over the past 10 years, ENIAX has outperformed DFYGX with an annualized return of 4.17%, while DFYGX has yielded a comparatively lower 1.43% annualized return.

ENIAX

• 1D: 0.00%
• 1M: 0.38%
• YTD: 1.52%
• 6M: 1.93%
• 1Y: 5.28%
• 3Y*: 6.69%
• 5Y*: 4.69%
• 10Y*: 4.17%

DFYGX

• 1D: 0.00%
• 1M: 0.21%
• YTD: 1.41%
• 6M: 1.69%
• 1Y: 2.63%
• 3Y*: 3.92%
• 5Y*: 1.99%
• 10Y*: 1.43%

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

ENIAX vs. DFYGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ENIAX SEI Institutional Investments Trust Opportunistic Income Fund	1.52%	6.14%	8.34%	7.94%	-1.16%	2.67%	2.47%	5.82%	1.82%	3.93%
DFYGX DFA Two-Year Government Portfolio	1.41%	2.16%	5.15%	5.00%	-3.02%	-0.51%	0.38%	2.20%	1.42%	0.29%

Correlation

The correlation between ENIAX and DFYGX is -0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.01
Correlation (5Y) Calculated over the trailing 5-year period	0.07
Correlation (10Y) Calculated over the trailing 10-year period	0.03
Correlation (All Time) Calculated using the full available price history since Sep 5, 2007	0.02

The correlation between ENIAX and DFYGX shifts across timeframes, from -0.07 (1 year) to 0.07 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ENIAX vs. DFYGX — Risk / Return Rank

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

ENIAX

ENIAX Risk / Return Rank: 100
ENIAX Sharpe Ratio Rank: 100
ENIAX Sortino Ratio Rank: 100
ENIAX Omega Ratio Rank: 99
ENIAX Calmar Ratio Rank: 99
ENIAX Martin Ratio Rank: 100

DFYGX

DFYGX Risk / Return Rank: 55
DFYGX Sharpe Ratio Rank: 52
DFYGX Sortino Ratio Rank: 35
DFYGX Omega Ratio Rank: 99
DFYGX Calmar Ratio Rank: 46
DFYGX Martin Ratio Rank: 44

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.

ENIAX vs. DFYGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) and DFA Two-Year Government Portfolio (DFYGX). 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.

	ENIAX	DFYGX	Difference
Sharpe ratio: Return per unit of total volatility	5.58	2.12	+3.46
Sortino ratio: Return per unit of downside risk	11.95	2.45	+9.50
Omega ratio: Gain probability vs. loss probability	4.44	2.55	+1.90
Calmar ratio: Return relative to maximum drawdown	14.18	2.57	+11.60
Martin ratio: Return relative to average drawdown	87.74	9.22	+78.51
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ENIAX vs. DFYGX - Sharpe Ratio Comparison

The current ENIAX Sharpe Ratio is 5.58, which is higher than the DFYGX Sharpe Ratio of 2.12. The chart below compares the historical Sharpe Ratios of ENIAX and DFYGX, 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

	ENIAX	DFYGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.58	2.12	+3.46
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.65	1.62	+0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.50	1.44	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.67	1.85	-1.18

Drawdowns

ENIAX vs. DFYGX - Drawdown Comparison

The maximum ENIAX drawdown since its inception was -33.30%, which is greater than DFYGX's maximum drawdown of -4.46%. Use the drawdown chart below to compare losses from any high point for ENIAX and DFYGX.

Drawdown Indicators

	ENIAX	DFYGX	Difference
Max Drawdown Largest peak-to-trough decline	-33.30%	-4.46%	-28.84%
Max Drawdown (1Y) Largest decline over 1 year	-0.37%	-1.04%	+0.67%
Max Drawdown (3Y) Largest decline over 3 years	-2.11%	-1.04%	-1.07%
Max Drawdown (5Y) Largest decline over 5 years	-3.52%	-4.36%	+0.84%
Max Drawdown (10Y) Largest decline over 10 years	-13.45%	-4.46%	-8.99%
Current Drawdown Current decline from peak	0.00%	-0.10%	+0.10%
Average Drawdown Average peak-to-trough decline	-7.79%	-0.30%	-7.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.06%	0.29%	-0.23%

Volatility

ENIAX vs. DFYGX - Volatility Comparison

The current volatility for SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) is 0.23%, while DFA Two-Year Government Portfolio (DFYGX) has a volatility of 0.34%. This indicates that ENIAX experiences smaller price fluctuations and is considered to be less risky than DFYGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ENIAX	DFYGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.23%	0.34%	-0.11%
Volatility (6M) Calculated over the trailing 6-month period	0.69%	0.54%	+0.15%
Volatility (1Y) Calculated over the trailing 1-year period	0.95%	1.26%	-0.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.86%	1.24%	+1.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.79%	1.00%	+1.79%

ENIAX vs. DFYGX - Expense Ratio Comparison

ENIAX has a 0.23% expense ratio, which is higher than DFYGX's 0.17% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

ENIAX vs. DFYGX - Dividend Comparison

ENIAX's dividend yield for the trailing twelve months is around 5.93%, more than DFYGX's 2.80% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFYGX DFA Two-Year Government Portfolio	2.80%	2.04%	4.84%	3.07%	1.14%	0.00%	0.27%	1.87%	1.82%	1.01%	0.58%	0.49%
ENIAX SEI Institutional Investments Trust Opportunistic Income Fund	5.93%	6.00%	6.78%	5.33%	4.07%	2.66%	2.96%	4.32%	3.96%	3.02%	2.75%	2.54%

Frequently Asked Questions

Can I hold both ENIAX and DFYGX in my portfolio?

ENIAX and DFYGX have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ENIAX or DFYGX?

DFYGX has higher volatility (0.34%) compared to ENIAX (0.23%). In terms of maximum drawdown, ENIAX dropped -33.30% vs DFYGX's -4.46%.

Which has better risk-adjusted returns?

ENIAX currently has the higher Sharpe Ratio (5.58 vs 2.12), 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.