VIGIX vs. VPMCX

Last updated Aug 5, 2026

VIGIX (Vanguard Growth Index Fund Institutional Shares) and VPMCX (Vanguard PRIMECAP Fund Investor Shares) are both Large Cap Growth Equities funds from Vanguard. VIGIX is passively managed, while VPMCX is actively managed. Over the past 10 years, VIGIX returned 17.52%/yr vs 16.58%/yr for VPMCX. Their correlation of 0.91 means they have usually moved in the same direction. VIGIX charges 0.03%/yr vs 0.35%/yr for VPMCX.

Performance

VIGIX vs. VPMCX - Performance Comparison

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

Returns By Period

In the year-to-date period, VIGIX achieves a 7.35% return, which is significantly lower than VPMCX's 21.86% return. Over the past 10 years, VIGIX has outperformed VPMCX with an annualized return of 17.52%, while VPMCX has yielded a comparatively lower 16.58% annualized return.

VIGIX

• 1D: 2.23%
• 1M: 1.73%
• 6M: 10.65%
• YTD: 7.35%
• 1Y: 15.71%
• 3Y*: 23.29%
• 5Y*: 12.54%
• 10Y*: 17.52%
• ALL TIME*: 9.74%

VPMCX

• 1D: 0.95%
• 1M: -3.00%
• 6M: 15.94%
• YTD: 21.86%
• 1Y: 46.33%
• 3Y*: 24.73%
• 5Y*: 14.92%
• 10Y*: 16.58%
• ALL TIME*: 15.28%

*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
VPMCX Vanguard PRIMECAP Fund Investor Shares	$0.00	$0.00	$0.00

VIGIX vs. VPMCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VIGIX Vanguard Growth Index Fund Institutional Shares	7.35%	19.44%	32.68%	46.77%	-33.13%	27.27%	40.19%	37.26%	-3.34%	27.81%
VPMCX Vanguard PRIMECAP Fund Investor Shares	21.86%	29.60%	13.23%	28.16%	-15.22%	21.64%	17.16%	27.78%	-1.99%	28.17%

Correlation

The correlation between VIGIX and VPMCX is 0.77, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.77
Correlation (3Y) Balances recent behavior with more history.	0.81
Correlation (5Y) Shows whether the relationship held over a longer period.	0.87
Correlation (10Y) Provides a long-term view across more market conditions.	0.87
Correlation (All Time) Calculated using the full available price history since May 14, 1998	0.91

The correlation between VIGIX and VPMCX shifts across timeframes, from 0.77 (1 year) to 0.91 (all time), reflecting how their relationship changes across market environments.

VIGIX vs. VPMCX - Sectors Allocation Comparison

Sectors	VIGIX	VPMCX
Technology	56.2%	28.9%
Communication Services	15.4%	7.7%
Consumer Cyclical	11.5%	11.8%
Industrials	5.3%	13.2%
Healthcare	4.7%	25.1%
Financial Services	3.8%	7.6%
Consumer Defensive	1.4%	1.1%
Real Estate	1.0%	0.1%
Utilities	0.7%	0.0%
Basic Materials	0.5%	1.6%
Energy	0.3%	1.8%

Return for Risk

VIGIX vs. VPMCX — Risk / Return Rank

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

VIGIX

VIGIX Risk / Return Rank: 25
VIGIX Sharpe Ratio Rank: 27
VIGIX Sortino Ratio Rank: 27
VIGIX Omega Ratio Rank: 26
VIGIX Calmar Ratio Rank: 22
VIGIX Martin Ratio Rank: 23

VPMCX

VPMCX Risk / Return Rank: 93
VPMCX Sharpe Ratio Rank: 95
VPMCX Sortino Ratio Rank: 92
VPMCX Omega Ratio Rank: 88
VPMCX Calmar Ratio Rank: 94
VPMCX Martin Ratio Rank: 94

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.

VIGIX vs. VPMCX - Risk-Adjusted Trends Comparison

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

	VIGIX	VPMCX	Difference
Sharpe ratio: Return per unit of total volatility	1.01	2.57	-1.55
Sortino ratio: Return per unit of downside risk	1.48	3.45	-1.97
Omega ratio: Gain probability vs. loss probability	1.18	1.45	-0.27
Calmar ratio: Return relative to maximum drawdown	1.09	4.15	-3.06
Martin ratio: Return relative to average drawdown	3.48	15.31	-11.84

VIGIX vs. VPMCX - Sharpe Ratio Comparison

The current VIGIX Sharpe Ratio is 1.01, which is lower than the VPMCX Sharpe Ratio of 2.57. The chart below compares the historical Sharpe Ratios of VIGIX and VPMCX, 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

VIGIX vs. VPMCX - Drawdown Comparison

The maximum VIGIX drawdown since its inception was -56.95%, which is greater than VPMCX's maximum drawdown of -50.45%. Use the drawdown chart below to compare losses from any high point for VIGIX and VPMCX.

Drawdown Indicators

	VIGIX	VPMCX	Difference
Max Drawdown Largest peak-to-trough decline	-56.95%	-50.45%	-6.50%
Max Drawdown (1Y) Largest decline over 1 year	-16.51%	-11.73%	-4.78%
Max Drawdown (3Y) Largest decline over 3 years	-23.03%	-20.56%	-2.47%
Max Drawdown (5Y) Largest decline over 5 years	-35.62%	-25.25%	-10.37%
Max Drawdown (10Y) Largest decline over 10 years	-35.62%	-32.65%	-2.97%
Current Drawdown Current decline from peak	-3.41%	-6.60%	+3.19%
Average Drawdown Average peak-to-trough decline	-16.21%	-7.39%	-8.82%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.17%	3.17%	+2.00%

Volatility

VIGIX vs. VPMCX - Volatility Comparison

Vanguard Growth Index Fund Institutional Shares (VIGIX) and Vanguard PRIMECAP Fund Investor Shares (VPMCX) have volatilities of 5.95% and 5.84%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VIGIX	VPMCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.95%	5.84%	+0.11%
Volatility (6M) Calculated over the trailing 6-month period	14.39%	16.14%	-1.75%
Volatility (1Y) Calculated over the trailing 1-year period	17.82%	19.02%	-1.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.64%	18.81%	+3.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.71%	19.40%	+2.31%

VIGIX vs. VPMCX - Expense Ratio Comparison

VIGIX has a 0.03% expense ratio, which is lower than VPMCX's 0.35% expense ratio.

Dividends

VIGIX vs. VPMCX - Dividend Comparison

VIGIX's dividend yield for the trailing twelve months is around 0.39%, less than VPMCX's 13.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VIGIX Vanguard Growth Index Fund Institutional Shares	0.39%	0.41%	0.47%	0.58%	0.70%	0.48%	0.66%	0.95%	1.32%	1.15%	1.40%	1.31%
VPMCX Vanguard PRIMECAP Fund Investor Shares	13.42%	16.36%	6.62%	7.16%	9.85%	10.08%	9.74%	7.15%	8.32%	4.53%	5.05%	5.91%

Frequently Asked Questions

Can I hold both VIGIX and VPMCX in my portfolio?

VIGIX and VPMCX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VIGIX or VPMCX?

VIGIX has higher volatility (5.95%) compared to VPMCX (5.84%). In terms of maximum drawdown, VIGIX dropped -56.95% vs VPMCX's -50.45%.

Which has better risk-adjusted returns?

VPMCX currently has the higher Sharpe Ratio (2.57 vs 1.01), 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.