VITPX vs. VFIAX

Last updated Jun 4, 2026

VITPX (Vanguard Institutional Total Stock Market Index Fund Institutional Plus Shares) and VFIAX (Vanguard 500 Index Fund Admiral Shares) are both mutual funds - VITPX is a Large Cap Blend Equities fund managed by Vanguard, while VFIAX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, VITPX returned 15.19%/yr vs 15.63%/yr for VFIAX. With a 0.99 correlation, they move nearly in lockstep. VITPX charges 0.02%/yr vs 0.04%/yr for VFIAX.

Performance

VITPX vs. VFIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Institutional Total Stock Market Index Fund Institutional Plus Shares (VITPX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with VITPX having a 11.99% return and VFIAX slightly lower at 11.69%. Both investments have delivered pretty close results over the past 10 years, with VITPX having a 15.19% annualized return and VFIAX not far ahead at 15.63%.

VITPX

• 1D: 0.24%
• 1M: 5.76%
• YTD: 11.99%
• 6M: 11.89%
• 1Y: 29.15%
• 3Y*: 22.92%
• 5Y*: 13.38%
• 10Y*: 15.19%

VFIAX

• 1D: 0.13%
• 1M: 5.80%
• YTD: 11.69%
• 6M: 11.73%
• 1Y: 28.95%
• 3Y*: 22.72%
• 5Y*: 14.24%
• 10Y*: 15.63%

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

VITPX vs. VFIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VITPX Vanguard Institutional Total Stock Market Index Fund Institutional Plus Shares	11.99%	17.17%	25.43%	26.01%	-19.48%	25.76%	20.95%	30.87%	-5.59%	20.51%
VFIAX Vanguard 500 Index Fund Admiral Shares	11.69%	17.83%	24.97%	26.24%	-18.16%	28.65%	18.32%	31.46%	-4.45%	21.78%

Correlation

The correlation between VITPX and VFIAX is 0.99 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.99
Correlation (3Y) Calculated over the trailing 3-year period	0.99
Correlation (5Y) Calculated over the trailing 5-year period	0.99
Correlation (10Y) Calculated over the trailing 10-year period	0.99
Correlation (All Time) Calculated using the full available price history since Jun 1, 2001	0.99

The correlation between VITPX and VFIAX has been stable across timeframes, ranging from 0.99 to 0.99 - a consistent structural relationship.

VITPX vs. VFIAX - Sectors Allocation Comparison

Sectors	VITPX	VFIAX
Technology	33.5%	35.7%
Financial Services	11.9%	11.6%
Communication Services	10.3%	11.3%
Consumer Cyclical	10.0%	10.2%
Industrials	9.8%	8.3%
Healthcare	9.2%	8.5%
Consumer Defensive	4.7%	4.9%
Energy	3.7%	3.5%
Real Estate	2.4%	1.9%
Utilities	2.3%	2.4%
Basic Materials	2.0%	1.8%

Return for Risk

VITPX vs. VFIAX — Risk / Return Rank

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

VITPX

VITPX Risk / Return Rank: 72
VITPX Sharpe Ratio Rank: 73
VITPX Sortino Ratio Rank: 65
VITPX Omega Ratio Rank: 64
VITPX Calmar Ratio Rank: 74
VITPX Martin Ratio Rank: 82

VFIAX

VFIAX Risk / Return Rank: 73
VFIAX Sharpe Ratio Rank: 75
VFIAX Sortino Ratio Rank: 67
VFIAX Omega Ratio Rank: 67
VFIAX Calmar Ratio Rank: 74
VFIAX Martin Ratio Rank: 83

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.

VITPX vs. VFIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Institutional Total Stock Market Index Fund Institutional Plus Shares (VITPX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). 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.

	VITPX	VFIAX	Difference
Sharpe ratio: Return per unit of total volatility	2.47	2.52	-0.04
Sortino ratio: Return per unit of downside risk	3.37	3.42	-0.05
Omega ratio: Gain probability vs. loss probability	1.44	1.46	-0.01
Calmar ratio: Return relative to maximum drawdown	3.38	3.35	+0.03
Martin ratio: Return relative to average drawdown	15.60	15.66	-0.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VITPX vs. VFIAX - Sharpe Ratio Comparison

The current VITPX Sharpe Ratio is 2.47, which is comparable to the VFIAX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of VITPX and VFIAX, 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

	VITPX	VFIAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.47	2.52	-0.04
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.78	0.85	-0.07
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.83	0.87	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.47	+0.04

Drawdowns

VITPX vs. VFIAX - Drawdown Comparison

The maximum VITPX drawdown since its inception was -55.28%, roughly equal to the maximum VFIAX drawdown of -55.20%. Use the drawdown chart below to compare losses from any high point for VITPX and VFIAX.

Drawdown Indicators

	VITPX	VFIAX	Difference
Max Drawdown Largest peak-to-trough decline	-55.28%	-55.20%	-0.08%
Max Drawdown (1Y) Largest decline over 1 year	-8.92%	-8.90%	-0.02%
Max Drawdown (3Y) Largest decline over 3 years	-19.35%	-18.75%	-0.60%
Max Drawdown (5Y) Largest decline over 5 years	-25.31%	-24.53%	-0.78%
Max Drawdown (10Y) Largest decline over 10 years	-34.99%	-33.83%	-1.16%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-8.02%	-9.40%	+1.38%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.93%	1.90%	+0.03%

Volatility

VITPX vs. VFIAX - Volatility Comparison

Vanguard Institutional Total Stock Market Index Fund Institutional Plus Shares (VITPX) and Vanguard 500 Index Fund Admiral Shares (VFIAX) have volatilities of 2.94% and 2.82%, 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

	VITPX	VFIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.94%	2.82%	+0.12%
Volatility (6M) Calculated over the trailing 6-month period	9.19%	8.98%	+0.21%
Volatility (1Y) Calculated over the trailing 1-year period	12.19%	11.86%	+0.33%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.35%	16.90%	+0.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.41%	18.07%	+0.34%

VITPX vs. VFIAX - Expense Ratio Comparison

VITPX has a 0.02% expense ratio, which is lower than VFIAX's 0.04% 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%.

Dividends

VITPX vs. VFIAX - Dividend Comparison

VITPX's dividend yield for the trailing twelve months is around 2.24%, more than VFIAX's 1.01% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VFIAX Vanguard 500 Index Fund Admiral Shares	1.01%	1.12%	1.24%	1.45%	1.68%	1.24%	1.53%	1.87%	2.05%	1.78%	2.02%	2.10%
VITPX Vanguard Institutional Total Stock Market Index Fund Institutional Plus Shares	2.24%	2.64%	4.14%	2.41%	6.48%	5.38%	11.57%	2.91%	3.93%	1.90%	2.80%	2.30%

Frequently Asked Questions

Can I hold both VITPX and VFIAX in my portfolio?

With a correlation of 0.99, VITPX and VFIAX 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, VITPX or VFIAX?

VITPX has higher volatility (2.94%) compared to VFIAX (2.82%). In terms of maximum drawdown, VITPX dropped -55.28% vs VFIAX's -55.20%.

Which has better risk-adjusted returns?

VFIAX currently has the higher Sharpe Ratio (2.52 vs 2.47), 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.