SPINX vs. VADDX

Last updated Apr 2, 2026

Compare and contrast key facts about SEI Institutional Investments Trust S&P 500 Index Fund (SPINX) and Invesco Equally-Weighted S&P 500 Fund (VADDX).

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. VADDX is a passively managed fund by Invesco that tracks the performance of the S&P 500 Equal Weight Index. It was launched on Jul 28, 1997. Both SPINX and VADDX are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

SPINX vs. VADDX - 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 Invesco Equally-Weighted S&P 500 Fund (VADDX). The values are adjusted to include any dividend payments, if applicable.

SPINX vs. VADDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
VADDX Invesco Equally-Weighted S&P 500 Fund	0.61%	11.16%	12.68%	13.58%	-11.86%	29.27%	12.56%	28.92%	-7.96%	18.55%

Returns By Period

In the year-to-date period, SPINX achieves a -4.36% return, which is significantly lower than VADDX's 0.61% return. Over the past 10 years, SPINX has outperformed VADDX with an annualized return of 13.92%, while VADDX has yielded a comparatively lower 10.94% annualized return.

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%

VADDX

• 1D: 2.06%
• 1M: -5.82%
• YTD: 0.61%
• 6M: 1.75%
• 1Y: 12.48%
• 3Y*: 11.64%
• 5Y*: 7.70%
• 10Y*: 10.94%

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

SPINX vs. VADDX - Expense Ratio Comparison

SPINX has a 0.12% expense ratio, which is lower than VADDX's 0.27% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

VADDX

Invesco Equally-Weighted S&P 500 Fund

SPINX

SEI Institutional Investments Trust S&P 500 Index Fund

Return for Risk

SPINX vs. VADDX — Risk / Return Rank

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

SPINX

SPINX Risk / Return Rank: 56
SPINX Sharpe Ratio Rank: 46
SPINX Sortino Ratio Rank: 49
SPINX Omega Ratio Rank: 53
SPINX Calmar Ratio Rank: 59
SPINX Martin Ratio Rank: 72

VADDX

VADDX Risk / Return Rank: 32
VADDX Sharpe Ratio Rank: 29
VADDX Sortino Ratio Rank: 31
VADDX Omega Ratio Rank: 30
VADDX Calmar Ratio Rank: 31
VADDX Martin Ratio Rank: 38

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. VADDX - 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 Invesco Equally-Weighted S&P 500 Fund (VADDX). 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	VADDX	Difference
Sharpe ratio Return per unit of total volatility	0.97	0.74	+0.24
Sortino ratio Return per unit of downside risk	1.49	1.15	+0.34
Omega ratio Gain probability vs. loss probability	1.23	1.16	+0.06
Calmar ratio Return relative to maximum drawdown	1.53	0.93	+0.59
Martin ratio Return relative to average drawdown	7.30	4.21	+3.09
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. VADDX - Sharpe Ratio Comparison

The current SPINX Sharpe Ratio is 0.97, which is higher than the VADDX Sharpe Ratio of 0.74. The chart below compares the historical Sharpe Ratios of SPINX and VADDX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SPINX	VADDX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.97	0.74	+0.24
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.52	0.48	+0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.67	0.59	+0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.46	+0.19

Correlation

The correlation between SPINX and VADDX is 0.90, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

SPINX vs. VADDX - Dividend Comparison

SPINX's dividend yield for the trailing twelve months is around 12.44%, more than VADDX's 10.03% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
VADDX Invesco Equally-Weighted S&P 500 Fund	10.03%	10.09%	8.88%	4.86%	8.45%	9.92%	6.38%	4.68%	7.13%	2.97%	0.30%	2.98%

Drawdowns

SPINX vs. VADDX - Drawdown Comparison

The maximum SPINX drawdown since its inception was -33.82%, smaller than the maximum VADDX drawdown of -60.12%. Use the drawdown chart below to compare losses from any high point for SPINX and VADDX.

Drawdown Indicators

	SPINX	VADDX	Difference
Max Drawdown Largest peak-to-trough decline	-33.82%	-60.12%	+26.30%
Max Drawdown (1Y) Largest decline over 1 year	-12.11%	-12.61%	+0.50%
Max Drawdown (5Y) Largest decline over 5 years	-32.91%	-21.58%	-11.33%
Max Drawdown (10Y) Largest decline over 10 years	-33.82%	-39.39%	+5.57%
Current Drawdown Current decline from peak	-11.03%	-5.99%	-5.04%
Average Drawdown Average peak-to-trough decline	-5.25%	-7.03%	+1.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.53%	2.80%	-0.27%

Volatility

SPINX vs. VADDX - Volatility Comparison

SEI Institutional Investments Trust S&P 500 Index Fund (SPINX) has a higher volatility of 5.36% compared to Invesco Equally-Weighted S&P 500 Fund (VADDX) at 4.48%. This indicates that SPINX's price experiences larger fluctuations and is considered to be riskier than VADDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPINX	VADDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.36%	4.48%	+0.88%
Volatility (6M) Calculated over the trailing 6-month period	9.59%	8.88%	+0.71%
Volatility (1Y) Calculated over the trailing 1-year period	18.34%	17.25%	+1.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.50%	16.30%	+6.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.94%	18.54%	+2.40%