WFIOX vs. VIGIX

Last updated Aug 1, 2026

WFIOX (Allspring Index Fund) and VIGIX (Vanguard Growth Index Fund Institutional Shares) are both mutual funds - WFIOX is a Large Cap Blend Equities fund managed by Allspring, while VIGIX is a Large Cap Growth Equities fund tracking the CRSP US Large Cap Growth Index. Over the past 10 years, WFIOX returned 14.75%/yr vs 17.15%/yr for VIGIX. Their 0.95 correlation means they have historically moved very closely together. WFIOX charges 0.25%/yr vs 0.03%/yr for VIGIX.

Performance

WFIOX vs. VIGIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Allspring Index Fund (WFIOX) and Vanguard Growth Index Fund Institutional Shares (VIGIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WFIOX achieves a 9.19% return, which is significantly higher than VIGIX's 3.82% return. Over the past 10 years, WFIOX has underperformed VIGIX with an annualized return of 14.75%, while VIGIX has yielded a comparatively higher 17.15% annualized return.

WFIOX

• 1D: 1.66%
• 1M: -0.57%
• 6M: 7.67%
• YTD: 9.19%
• 1Y: 20.32%
• 3Y*: 18.72%
• 5Y*: 12.41%
• 10Y*: 14.75%
• ALL TIME*: 9.14%

VIGIX

• 1D: 2.71%
• 1M: -1.61%
• 6M: 5.20%
• YTD: 3.82%
• 1Y: 14.05%
• 3Y*: 20.61%
• 5Y*: 11.91%
• 10Y*: 17.15%
• ALL TIME*: 9.61%

*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)
VIGIX Vanguard Growth Index Fund Institutional Shares	$0.00	$0.00	$0.00
WFIOX Allspring Index Fund	$0.00	$0.00	$0.00

WFIOX vs. VIGIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WFIOX Allspring Index Fund	9.19%	17.57%	24.66%	26.01%	-18.30%	28.34%	17.74%	31.55%	-4.49%	21.59%
VIGIX Vanguard Growth Index Fund Institutional Shares	3.82%	19.44%	32.68%	46.77%	-33.13%	27.27%	40.19%	37.26%	-3.34%	27.81%

Correlation

The correlation between WFIOX and VIGIX is 0.94, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.94
Correlation (3Y) Balances recent behavior with more history.	0.94
Correlation (5Y) Shows whether the relationship held over a longer period.	0.95
Correlation (10Y) Provides a long-term view across more market conditions.	0.93
Correlation (All Time) Calculated using the full available price history since May 14, 1998	0.95

The correlation between WFIOX and VIGIX has been stable across timeframes, ranging from 0.93 to 0.95 - a consistent structural relationship.

Return for Risk

WFIOX vs. VIGIX — Risk / Return Rank

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

WFIOX

WFIOX Risk / Return Rank: 57
WFIOX Sharpe Ratio Rank: 54
WFIOX Sortino Ratio Rank: 51
WFIOX Omega Ratio Rank: 51
WFIOX Calmar Ratio Rank: 58
WFIOX Martin Ratio Rank: 70

VIGIX

VIGIX Risk / Return Rank: 18
VIGIX Sharpe Ratio Rank: 19
VIGIX Sortino Ratio Rank: 19
VIGIX Omega Ratio Rank: 19
VIGIX Calmar Ratio Rank: 15
VIGIX Martin Ratio Rank: 17

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.

WFIOX vs. VIGIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Allspring Index Fund (WFIOX) and Vanguard Growth Index Fund Institutional Shares (VIGIX). 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.

	WFIOX	VIGIX	Difference
Sharpe ratio: Return per unit of total volatility	1.40	0.66	+0.75
Sortino ratio: Return per unit of downside risk	1.97	1.01	+0.95
Omega ratio: Gain probability vs. loss probability	1.25	1.12	+0.13
Calmar ratio: Return relative to maximum drawdown	2.02	0.71	+1.31
Martin ratio: Return relative to average drawdown	8.65	2.26	+6.40

WFIOX vs. VIGIX - Sharpe Ratio Comparison

The current WFIOX Sharpe Ratio is 1.40, which is higher than the VIGIX Sharpe Ratio of 0.66. The chart below compares the historical Sharpe Ratios of WFIOX and VIGIX, 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

WFIOX vs. VIGIX - Drawdown Comparison

The maximum WFIOX drawdown since its inception was -54.40%, roughly equal to the maximum VIGIX drawdown of -56.95%. Use the drawdown chart below to compare losses from any high point for WFIOX and VIGIX.

Drawdown Indicators

	WFIOX	VIGIX	Difference
Max Drawdown Largest peak-to-trough decline	-54.40%	-56.95%	+2.55%
Max Drawdown (1Y) Largest decline over 1 year	-8.93%	-16.51%	+7.58%
Max Drawdown (3Y) Largest decline over 3 years	-18.78%	-23.03%	+4.25%
Max Drawdown (5Y) Largest decline over 5 years	-24.63%	-35.62%	+10.99%
Max Drawdown (10Y) Largest decline over 10 years	-33.94%	-35.62%	+1.68%
Current Drawdown Current decline from peak	-2.15%	-6.59%	+4.44%
Average Drawdown Average peak-to-trough decline	-9.64%	-16.21%	+6.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.08%	5.16%	-3.08%

Volatility

WFIOX vs. VIGIX - Volatility Comparison

The current volatility for Allspring Index Fund (WFIOX) is 3.45%, while Vanguard Growth Index Fund Institutional Shares (VIGIX) has a volatility of 5.40%. This indicates that WFIOX experiences smaller price fluctuations and is considered to be less risky than VIGIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WFIOX	VIGIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.45%	5.40%	-1.95%
Volatility (6M) Calculated over the trailing 6-month period	10.09%	14.23%	-4.14%
Volatility (1Y) Calculated over the trailing 1-year period	12.85%	17.76%	-4.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.02%	22.62%	-5.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.14%	21.69%	-3.55%

WFIOX vs. VIGIX - Expense Ratio Comparison

WFIOX has a 0.25% expense ratio, which is higher than VIGIX's 0.03% 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

WFIOX vs. VIGIX - Dividend Comparison

WFIOX's dividend yield for the trailing twelve months is around 6.45%, more than VIGIX's 0.40% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VIGIX Vanguard Growth Index Fund Institutional Shares	0.40%	0.41%	0.47%	0.58%	0.70%	0.48%	0.66%	0.95%	1.32%	1.15%	1.40%	1.31%
WFIOX Allspring Index Fund	6.45%	7.04%	8.54%	7.63%	10.41%	9.15%	14.40%	33.14%	33.69%	20.04%	10.07%	8.62%

Frequently Asked Questions

Can I hold both WFIOX and VIGIX in my portfolio?

With a correlation of 0.94, WFIOX and VIGIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, WFIOX or VIGIX?

VIGIX has higher volatility (5.40%) compared to WFIOX (3.45%). In terms of maximum drawdown, WFIOX dropped -54.40% vs VIGIX's -56.95%.

Which has better risk-adjusted returns?

WFIOX currently has the higher Sharpe Ratio (1.40 vs 0.66), 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.