PortfoliosLab logoPortfoliosLab logo

Documentation

Upgrade your plan
ENIAX vs. SPINX
Performance
Return for Risk
Dividends
Drawdowns
Volatility

ENIAX vs. SPINX

Last updated Apr 2, 2026

Compare and contrast key facts about SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) and SEI Institutional Investments Trust S&P 500 Index Fund (SPINX).

ENIAX is managed by SEI. It was launched on Dec 13, 2006. SPINX is a passively managed fund by SEI that tracks the performance of the S&P 500 Index. It was launched on Dec 18, 2013.

Performance

ENIAX vs. SPINX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) and SEI Institutional Investments Trust S&P 500 Index Fund (SPINX). The values are adjusted to include any dividend payments, if applicable.

Loading graphics...

ENIAX vs. SPINX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
ENIAX
SEI Institutional Investments Trust Opportunistic Income Fund		0.38%6.14%8.34%7.94%-1.16%2.67%2.47%5.82%1.82%3.93%
SPINX
SEI Institutional Investments Trust S&P 500 Index Fund		-4.36%17.89%24.02%26.24%-18.27%28.62%18.35%31.42%-4.46%21.74%

Returns By Period

In the year-to-date period, ENIAX achieves a 0.38% return, which is significantly higher than SPINX's -4.36% return. Over the past 10 years, ENIAX has underperformed SPINX with an annualized return of 4.17%, while SPINX has yielded a comparatively higher 13.92% annualized return.

ENIAX

1D
0.00%
1M
0.25%
YTD
0.38%
6M
1.58%
1Y
5.36%
3Y*
6.73%
5Y*
4.57%
10Y*
4.17%

SPINX

1D
2.94%
1M
-5.04%
YTD
-4.36%
6M
-2.09%
1Y
17.35%
3Y*
17.98%
5Y*
11.54%
10Y*
13.92%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

SEI Institutional Investments Trust Opportunistic Income Fund

SEI Institutional Investments Trust S&P 500 Index Fund

Often compared with ENIAX:
ENIAX vs. PAAAENIAX vs. DBSCXENIAX vs. FLTRENIAX vs. HICOXENIAX vs. DFLYXENIAX vs. CLOIENIAX vs. SGOV
Often compared with SPINX:
SPINX vs. ITWN.LSPINX vs. SPYSPINX vs. BITOSPINX vs. VUGSPINX vs. vspvxSPINX vs. trbcxSPINX vs. PEOPX

ENIAX vs. SPINX - Expense Ratio Comparison

ENIAX has a 0.23% expense ratio, which is higher than SPINX's 0.12% 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%.

ENIAX
SEI Institutional Investments Trust Opportunistic Income Fund
SPINX
SEI Institutional Investments Trust S&P 500 Index Fund

Return for Risk

ENIAX vs. SPINX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
ENIAX
ENIAX Risk / Return Rank: 9292
Overall Rank
ENIAX Sharpe Ratio Rank: 9090
Sharpe Ratio Rank
ENIAX Sortino Ratio Rank: 8787
Sortino Ratio Rank
ENIAX Omega Ratio Rank: 9999
Omega Ratio Rank
ENIAX Calmar Ratio Rank: 9090
Calmar Ratio Rank
ENIAX Martin Ratio Rank: 9292
Martin Ratio Rank
SPINX
SPINX Risk / Return Rank: 5656
Overall Rank
SPINX Sharpe Ratio Rank: 4646
Sharpe Ratio Rank
SPINX Sortino Ratio Rank: 4949
Sortino Ratio Rank
SPINX Omega Ratio Rank: 5353
Omega Ratio Rank
SPINX Calmar Ratio Rank: 5959
Calmar Ratio Rank
SPINX Martin Ratio Rank: 7272
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.

ENIAX vs. SPINX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) and SEI Institutional Investments Trust S&P 500 Index Fund (SPINX). 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.

ENIAXSPINXDifference

Sharpe ratio

Return per unit of total volatility

1.89

0.97

+0.92

Sortino ratio

Return per unit of downside risk

2.45

1.49

+0.96

Omega ratio

Gain probability vs. loss probability

2.41

1.23

+1.18

Calmar ratio

Return relative to maximum drawdown

2.54

1.53

+1.02

Martin ratio

Return relative to average drawdown

11.20

7.30

+3.90

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. SPINX - Sharpe Ratio Comparison

The current ENIAX Sharpe Ratio is 1.89, which is higher than the SPINX Sharpe Ratio of 0.97. The chart below compares the historical Sharpe Ratios of ENIAX and SPINX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Loading graphics...

Sharpe Ratios by Period

ENIAXSPINXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.89

0.97

+0.92

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

1.61

0.52

+1.09

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

1.50

0.67

+0.83

Sharpe Ratio (All Time)

Calculated using the full available price history

0.65

0.65

0.00

Correlation

The correlation between ENIAX and SPINX is 0.17, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

ENIAX vs. SPINX - Dividend Comparison

ENIAX's dividend yield for the trailing twelve months is around 5.98%, less than SPINX's 12.44% yield.

TTM20252024202320222021202020192018201720162015
ENIAX
SEI Institutional Investments Trust Opportunistic Income Fund		5.98%6.00%6.78%5.33%4.07%2.66%2.96%4.32%3.96%3.02%2.75%2.54%
SPINX
SEI Institutional Investments Trust S&P 500 Index Fund		12.44%11.90%26.02%9.77%9.59%6.58%3.58%3.01%4.94%2.32%1.97%2.29%

Drawdowns

ENIAX vs. SPINX - Drawdown Comparison

The maximum ENIAX drawdown since its inception was -33.30%, roughly equal to the maximum SPINX drawdown of -33.82%. Use the drawdown chart below to compare losses from any high point for ENIAX and SPINX.

Loading graphics...

Drawdown Indicators

ENIAXSPINXDifference

Max Drawdown

Largest peak-to-trough decline

-33.30%

-33.82%

+0.52%

Max Drawdown (1Y)

Largest decline over 1 year

-2.11%

-12.11%

+10.00%

Max Drawdown (5Y)

Largest decline over 5 years

-3.52%

-32.91%

+29.39%

Max Drawdown (10Y)

Largest decline over 10 years

-13.45%

-33.82%

+20.37%

Current Drawdown

Current decline from peak

0.00%

-11.03%

+11.03%

Average Drawdown

Average peak-to-trough decline

-7.86%

-5.25%

-2.61%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.48%

2.53%

-2.05%

Volatility

ENIAX vs. SPINX - Volatility Comparison

The current volatility for SEI Institutional Investments Trust Opportunistic Income Fund (ENIAX) is 0.36%, while SEI Institutional Investments Trust S&P 500 Index Fund (SPINX) has a volatility of 5.36%. This indicates that ENIAX experiences smaller price fluctuations and is considered to be less risky than SPINX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Loading graphics...

Volatility by Period

ENIAXSPINXDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.36%

5.36%

-5.00%

Volatility (6M)

Calculated over the trailing 6-month period

0.66%

9.59%

-8.93%

Volatility (1Y)

Calculated over the trailing 1-year period

2.85%

18.34%

-15.49%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

2.86%

22.50%

-19.64%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

2.78%

20.94%

-18.16%