SPINX vs. SEIMX

Last updated Jun 5, 2026

SPINX (SEI Institutional Investments Trust S&P 500 Index Fund) and SEIMX (SEI Tax Exempt Trust Intermediate-Term Municipal Fund) are both mutual funds - SPINX is a S&P 500 fund tracking the S&P 500 Index, while SEIMX is a Municipal Bonds fund managed by SEI. Over the past 10 years, SPINX returned 15.42%/yr vs 1.92%/yr for SEIMX. At a correlation of -0.04, they often move in opposite directions. SPINX charges 0.12%/yr vs 0.63%/yr for SEIMX.

Performance

SPINX vs. SEIMX - Performance Comparison

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

Returns By Period

In the year-to-date period, SPINX achieves a 10.83% return, which is significantly higher than SEIMX's 1.27% return. Over the past 10 years, SPINX has outperformed SEIMX with an annualized return of 15.42%, while SEIMX has yielded a comparatively lower 1.92% annualized return.

SPINX

• 1D: -0.77%
• 1M: 4.15%
• YTD: 10.83%
• 6M: 10.84%
• 1Y: 28.05%
• 3Y*: 22.11%
• 5Y*: 13.67%
• 10Y*: 15.42%

SEIMX

• 1D: 0.00%
• 1M: 0.54%
• YTD: 1.27%
• 6M: 1.63%
• 1Y: 5.94%
• 3Y*: 3.69%
• 5Y*: 0.73%
• 10Y*: 1.92%

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

SPINX vs. SEIMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SPINX SEI Institutional Investments Trust S&P 500 Index Fund	10.83%	17.89%	24.02%	26.24%	-18.27%	28.62%	18.35%	31.42%	-4.46%	21.74%
SEIMX SEI Tax Exempt Trust Intermediate-Term Municipal Fund	1.27%	5.10%	1.52%	5.02%	-8.87%	1.39%	4.87%	7.17%	0.70%	4.62%

Correlation

The correlation between SPINX and SEIMX is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.18
Correlation (3Y) Calculated over the trailing 3-year period	0.14
Correlation (5Y) Calculated over the trailing 5-year period	0.11
Correlation (10Y) Calculated over the trailing 10-year period	0.02
Correlation (All Time) Calculated using the full available price history since Dec 20, 2013	-0.04

The correlation between SPINX and SEIMX shifts across timeframes, from -0.04 (all time) to 0.18 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

SPINX vs. SEIMX — Risk / Return Rank

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

SPINX

SPINX Risk / Return Rank: 67
SPINX Sharpe Ratio Rank: 66
SPINX Sortino Ratio Rank: 60
SPINX Omega Ratio Rank: 61
SPINX Calmar Ratio Rank: 69
SPINX Martin Ratio Rank: 80

SEIMX

SEIMX Risk / Return Rank: 67
SEIMX Sharpe Ratio Rank: 85
SEIMX Sortino Ratio Rank: 88
SEIMX Omega Ratio Rank: 94
SEIMX Calmar Ratio Rank: 35
SEIMX Martin Ratio Rank: 33

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.

SPINX vs. SEIMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Investments Trust S&P 500 Index Fund (SPINX) and SEI Tax Exempt Trust Intermediate-Term Municipal Fund (SEIMX). 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.

	SPINX	SEIMX	Difference
Sharpe ratio: Return per unit of total volatility	2.37	2.76	-0.39
Sortino ratio: Return per unit of downside risk	3.23	4.30	-1.07
Omega ratio: Gain probability vs. loss probability	1.43	1.75	-0.31
Calmar ratio: Return relative to maximum drawdown	3.16	2.18	+0.98
Martin ratio: Return relative to average drawdown	14.78	7.29	+7.49
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPINX vs. SEIMX - Sharpe Ratio Comparison

The current SPINX Sharpe Ratio is 2.37, which is comparable to the SEIMX Sharpe Ratio of 2.76. The chart below compares the historical Sharpe Ratios of SPINX and SEIMX, 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

	SPINX	SEIMX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.37	2.76	-0.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.61	0.22	+0.39
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.74	0.53	+0.21
Sharpe Ratio (All Time) Calculated using the full available price history	0.71	1.40	-0.69

Drawdowns

SPINX vs. SEIMX - Drawdown Comparison

The maximum SPINX drawdown since its inception was -33.82%, which is greater than SEIMX's maximum drawdown of -13.27%. Use the drawdown chart below to compare losses from any high point for SPINX and SEIMX.

Drawdown Indicators

	SPINX	SEIMX	Difference
Max Drawdown Largest peak-to-trough decline	-33.82%	-13.27%	-20.55%
Max Drawdown (1Y) Largest decline over 1 year	-8.92%	-2.82%	-6.10%
Max Drawdown (3Y) Largest decline over 3 years	-32.91%	-4.75%	-28.16%
Max Drawdown (5Y) Largest decline over 5 years	-32.91%	-13.27%	-19.64%
Max Drawdown (10Y) Largest decline over 10 years	-33.82%	-13.27%	-20.55%
Current Drawdown Current decline from peak	-0.77%	-0.80%	+0.03%
Average Drawdown Average peak-to-trough decline	-5.21%	-1.49%	-3.72%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.90%	0.84%	+1.06%

Volatility

SPINX vs. SEIMX - Volatility Comparison

SEI Institutional Investments Trust S&P 500 Index Fund (SPINX) has a higher volatility of 2.94% compared to SEI Tax Exempt Trust Intermediate-Term Municipal Fund (SEIMX) at 0.85%. This indicates that SPINX's price experiences larger fluctuations and is considered to be riskier than SEIMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPINX	SEIMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.94%	0.85%	+2.09%
Volatility (6M) Calculated over the trailing 6-month period	8.99%	1.75%	+7.24%
Volatility (1Y) Calculated over the trailing 1-year period	11.89%	2.23%	+9.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.49%	3.26%	+19.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.95%	3.64%	+17.31%

SPINX vs. SEIMX - Expense Ratio Comparison

SPINX has a 0.12% expense ratio, which is lower than SEIMX's 0.63% expense ratio.

Dividends

SPINX vs. SEIMX - Dividend Comparison

SPINX's dividend yield for the trailing twelve months is around 10.75%, more than SEIMX's 3.02% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SEIMX SEI Tax Exempt Trust Intermediate-Term Municipal Fund	3.02%	3.93%	2.60%	2.13%	1.79%	2.13%	2.39%	2.71%	2.60%	2.43%	2.49%	2.51%
SPINX SEI Institutional Investments Trust S&P 500 Index Fund	10.75%	11.90%	26.02%	9.77%	9.59%	6.58%	3.58%	3.01%	4.94%	2.32%	1.97%	2.29%

Frequently Asked Questions

Can I hold both SPINX and SEIMX in my portfolio?

SPINX and SEIMX have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SPINX or SEIMX?

SPINX has higher volatility (2.94%) compared to SEIMX (0.85%). In terms of maximum drawdown, SPINX dropped -33.82% vs SEIMX's -13.27%.

Which has better risk-adjusted returns?

SEIMX currently has the higher Sharpe Ratio (2.76 vs 2.37), 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.