VEMPX vs. VTIAX

Last updated Aug 4, 2026

VEMPX (Vanguard Extended Market Index Fund Institutional Plus Shares) and VTIAX (Vanguard Total International Stock Index Fund Admiral Shares) are both mutual funds - VEMPX is a Mid Cap Blend Equities fund tracking the Spliced Extended Market Index, while VTIAX is a Foreign Large Cap Equities fund tracking the FTSE Global All Cap ex US Index. Both are passively managed. Over the past 10 years, VEMPX returned 11.75%/yr vs 9.43%/yr for VTIAX. Their 0.76 correlation means they have sometimes moved together and sometimes differently. VEMPX charges 0.04%/yr vs 0.09%/yr for VTIAX.

Performance

VEMPX vs. VTIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Extended Market Index Fund Institutional Plus Shares (VEMPX) and Vanguard Total International Stock Index Fund Admiral Shares (VTIAX). 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 VEMPX having a 13.52% return and VTIAX slightly lower at 12.86%. Over the past 10 years, VEMPX has outperformed VTIAX with an annualized return of 11.75%, while VTIAX has yielded a comparatively lower 9.43% annualized return.

VEMPX

• 1D: -0.41%
• 1M: -3.02%
• 6M: 10.17%
• YTD: 13.52%
• 1Y: 23.28%
• 3Y*: 16.00%
• 5Y*: 6.12%
• 10Y*: 11.75%
• ALL TIME*: 11.34%

VTIAX

• 1D: 0.07%
• 1M: 0.18%
• 6M: 6.45%
• YTD: 12.86%
• 1Y: 27.78%
• 3Y*: 17.20%
• 5Y*: 8.82%
• 10Y*: 9.43%
• ALL TIME*: 6.96%

*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)
VEMPX Vanguard Extended Market Index Fund Institutional Plus Shares	$0.00	$0.00	$0.00
VTIAX Vanguard Total International Stock Index Fund Admiral Shares	$0.00	$0.00	$0.00

VEMPX vs. VTIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VEMPX Vanguard Extended Market Index Fund Institutional Plus Shares	13.52%	11.43%	15.50%	26.98%	-26.45%	12.48%	32.24%	28.06%	-9.35%	18.13%
VTIAX Vanguard Total International Stock Index Fund Admiral Shares	12.86%	32.18%	5.34%	15.28%	-16.02%	8.59%	11.27%	21.52%	-14.46%	27.54%

Correlation

The correlation between VEMPX and VTIAX is 0.76, 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.	0.76
Correlation (3Y) Balances recent behavior with more history.	0.73
Correlation (5Y) Shows whether the relationship held over a longer period.	0.76
Correlation (10Y) Provides a long-term view across more market conditions.	0.75
Correlation (All Time) Calculated using the full available price history since Dec 13, 2010	0.76

The correlation between VEMPX and VTIAX has been stable across timeframes, ranging from 0.73 to 0.76 - a consistent structural relationship.

VEMPX vs. VTIAX - Sectors Allocation Comparison

Sectors	VEMPX	VTIAX
Industrials	19.6%	13.8%
Technology	19.2%	25.6%
Financial Services	13.7%	24.2%
Healthcare	13.6%	6.9%
Consumer Cyclical	8.5%	6.4%
Real Estate	5.6%	0.9%
Basic Materials	4.7%	5.9%
Energy	4.3%	4.4%
Communication Services	2.8%	3.9%
Consumer Defensive	2.6%	4.6%
Utilities	1.8%	2.6%

Return for Risk

VEMPX vs. VTIAX — Risk / Return Rank

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

VEMPX

VEMPX Risk / Return Rank: 39
VEMPX Sharpe Ratio Rank: 34
VEMPX Sortino Ratio Rank: 35
VEMPX Omega Ratio Rank: 31
VEMPX Calmar Ratio Rank: 51
VEMPX Martin Ratio Rank: 45

VTIAX

VTIAX Risk / Return Rank: 70
VTIAX Sharpe Ratio Rank: 71
VTIAX Sortino Ratio Rank: 66
VTIAX Omega Ratio Rank: 70
VTIAX Calmar Ratio Rank: 72
VTIAX Martin Ratio Rank: 69

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.

VEMPX vs. VTIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Extended Market Index Fund Institutional Plus Shares (VEMPX) and Vanguard Total International Stock Index Fund Admiral Shares (VTIAX). 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.

	VEMPX	VTIAX	Difference
Sharpe ratio: Return per unit of total volatility	1.17	1.72	-0.55
Sortino ratio: Return per unit of downside risk	1.72	2.37	-0.64
Omega ratio: Gain probability vs. loss probability	1.21	1.32	-0.11
Calmar ratio: Return relative to maximum drawdown	2.03	2.43	-0.40
Martin ratio: Return relative to average drawdown	6.89	9.02	-2.13

VEMPX vs. VTIAX - Sharpe Ratio Comparison

The current VEMPX Sharpe Ratio is 1.17, which is lower than the VTIAX Sharpe Ratio of 1.72. The chart below compares the historical Sharpe Ratios of VEMPX and VTIAX, 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

VEMPX vs. VTIAX - Drawdown Comparison

The maximum VEMPX drawdown since its inception was -41.62%, which is greater than VTIAX's maximum drawdown of -35.83%. Use the drawdown chart below to compare losses from any high point for VEMPX and VTIAX.

Drawdown Indicators

	VEMPX	VTIAX	Difference
Max Drawdown Largest peak-to-trough decline	-41.62%	-35.83%	-5.79%
Max Drawdown (1Y) Largest decline over 1 year	-10.25%	-11.28%	+1.03%
Max Drawdown (3Y) Largest decline over 3 years	-26.83%	-13.13%	-13.70%
Max Drawdown (5Y) Largest decline over 5 years	-36.32%	-29.52%	-6.80%
Max Drawdown (10Y) Largest decline over 10 years	-41.62%	-35.83%	-5.79%
Current Drawdown Current decline from peak	-4.13%	-2.55%	-1.58%
Average Drawdown Average peak-to-trough decline	-7.90%	-8.02%	+0.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.02%	3.04%	-0.02%

Volatility

VEMPX vs. VTIAX - Volatility Comparison

The current volatility for Vanguard Extended Market Index Fund Institutional Plus Shares (VEMPX) is 3.88%, while Vanguard Total International Stock Index Fund Admiral Shares (VTIAX) has a volatility of 5.26%. This indicates that VEMPX experiences smaller price fluctuations and is considered to be less risky than VTIAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VEMPX	VTIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.88%	5.26%	-1.38%
Volatility (6M) Calculated over the trailing 6-month period	13.31%	14.12%	-0.81%
Volatility (1Y) Calculated over the trailing 1-year period	17.81%	15.96%	+1.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.40%	15.36%	+7.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.34%	15.82%	+6.52%

VEMPX vs. VTIAX - Expense Ratio Comparison

VEMPX has a 0.04% expense ratio, which is lower than VTIAX's 0.09% 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

VEMPX vs. VTIAX - Dividend Comparison

VEMPX's dividend yield for the trailing twelve months is around 1.05%, less than VTIAX's 2.55% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VEMPX Vanguard Extended Market Index Fund Institutional Plus Shares	1.05%	1.15%	1.11%	1.27%	1.17%	1.15%	1.09%	1.32%	1.68%	1.27%	1.46%	1.39%
VTIAX Vanguard Total International Stock Index Fund Admiral Shares	2.55%	3.15%	3.33%	3.22%	3.04%	3.05%	2.10%	3.04%	3.16%	2.73%	2.93%	2.84%

Frequently Asked Questions

Can I hold both VEMPX and VTIAX in my portfolio?

VEMPX and VTIAX have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VEMPX or VTIAX?

VTIAX has higher volatility (5.26%) compared to VEMPX (3.88%). In terms of maximum drawdown, VEMPX dropped -41.62% vs VTIAX's -35.83%.

Which has better risk-adjusted returns?

VTIAX currently has the higher Sharpe Ratio (1.72 vs 1.17), 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.