VEMRX vs. VTSAX

Last updated Jun 3, 2026

VEMRX (Vanguard Emerging Markets Index Fund Institutional Plus Shares) and VTSAX (Vanguard Total Stock Market Index Fund Admiral Shares) are both mutual funds - VEMRX is a Emerging Markets Equities fund managed by Vanguard, while VTSAX is a Large Cap Blend Equities fund managed by Vanguard. Over the past 10 years, VEMRX returned 8.93%/yr vs 15.12%/yr for VTSAX. A 0.69 correlation means they provide meaningful diversification when combined. VEMRX charges 0.08%/yr vs 0.04%/yr for VTSAX.

Performance

VEMRX vs. VTSAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Emerging Markets Index Fund Institutional Plus Shares (VEMRX) and Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX). 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 VEMRX having a 12.24% return and VTSAX slightly lower at 11.98%. Over the past 10 years, VEMRX has underperformed VTSAX with an annualized return of 8.93%, while VTSAX has yielded a comparatively higher 15.12% annualized return.

VEMRX

• 1D: 0.88%
• 1M: 2.84%
• YTD: 12.24%
• 6M: 13.64%
• 1Y: 31.00%
• 3Y*: 18.08%
• 5Y*: 5.16%
• 10Y*: 8.93%

VTSAX

• 1D: 0.24%
• 1M: 5.76%
• YTD: 11.98%
• 6M: 11.87%
• 1Y: 29.09%
• 3Y*: 22.34%
• 5Y*: 13.04%
• 10Y*: 15.12%

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

VEMRX vs. VTSAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VEMRX Vanguard Emerging Markets Index Fund Institutional Plus Shares	12.24%	24.84%	11.40%	8.88%	-17.74%	0.92%	15.29%	20.39%	-14.55%	31.44%
VTSAX Vanguard Total Stock Market Index Fund Admiral Shares	11.98%	17.12%	23.23%	26.51%	-19.52%	25.72%	20.98%	30.79%	-5.18%	21.16%

Correlation

The correlation between VEMRX and VTSAX is 0.69, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.62
Correlation (5Y) Calculated over the trailing 5-year period	0.63
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since Dec 14, 2010	0.69

The correlation between VEMRX and VTSAX has been stable across timeframes, ranging from 0.62 to 0.69 - a consistent structural relationship.

VEMRX vs. VTSAX - Sectors Allocation Comparison

Sectors	VEMRX	VTSAX
Technology	29.6%	33.3%
Financial Services	19.5%	11.9%
Consumer Cyclical	10.7%	9.8%
Industrials	8.0%	9.5%
Basic Materials	8.0%	2.0%
Communication Services	7.1%	10.1%
Energy	4.6%	3.8%
Healthcare	3.9%	9.1%
Consumer Defensive	3.7%	4.7%
Utilities	2.9%	2.7%
Real Estate	2.2%	2.4%

Return for Risk

VEMRX vs. VTSAX — Risk / Return Rank

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

VEMRX

VEMRX Risk / Return Rank: 53
VEMRX Sharpe Ratio Rank: 57
VEMRX Sortino Ratio Rank: 53
VEMRX Omega Ratio Rank: 55
VEMRX Calmar Ratio Rank: 51
VEMRX Martin Ratio Rank: 50

VTSAX

VTSAX Risk / Return Rank: 71
VTSAX Sharpe Ratio Rank: 72
VTSAX Sortino Ratio Rank: 65
VTSAX Omega Ratio Rank: 63
VTSAX Calmar Ratio Rank: 74
VTSAX 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.

VEMRX vs. VTSAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Emerging Markets Index Fund Institutional Plus Shares (VEMRX) and Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX). 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.

	VEMRX	VTSAX	Difference
Sharpe ratio Return per unit of total volatility	2.24	2.47	-0.23
Sortino ratio Return per unit of downside risk	3.09	3.36	-0.27
Omega ratio Gain probability vs. loss probability	1.41	1.44	-0.03
Calmar ratio Return relative to maximum drawdown	2.76	3.37	-0.61
Martin ratio Return relative to average drawdown	10.33	15.56	-5.24
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VEMRX vs. VTSAX - Sharpe Ratio Comparison

The current VEMRX Sharpe Ratio is 2.24, which is comparable to the VTSAX Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of VEMRX and VTSAX, 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

	VEMRX	VTSAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.24	2.47	-0.23
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.34	0.76	-0.42
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.54	0.82	-0.28
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	0.47	-0.21

Drawdowns

VEMRX vs. VTSAX - Drawdown Comparison

The maximum VEMRX drawdown since its inception was -36.01%, smaller than the maximum VTSAX drawdown of -55.33%. Use the drawdown chart below to compare losses from any high point for VEMRX and VTSAX.

Drawdown Indicators

	VEMRX	VTSAX	Difference
Max Drawdown Largest peak-to-trough decline	-36.01%	-55.33%	+19.32%
Max Drawdown (1Y) Largest decline over 1 year	-11.04%	-8.92%	-2.12%
Max Drawdown (3Y) Largest decline over 3 years	-15.74%	-19.36%	+3.62%
Max Drawdown (5Y) Largest decline over 5 years	-32.49%	-25.36%	-7.13%
Max Drawdown (10Y) Largest decline over 10 years	-36.01%	-34.97%	-1.04%
Current Drawdown Current decline from peak	-0.42%	0.00%	-0.42%
Average Drawdown Average peak-to-trough decline	-12.83%	-9.01%	-3.82%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.95%	1.93%	+1.02%

Volatility

VEMRX vs. VTSAX - Volatility Comparison

Vanguard Emerging Markets Index Fund Institutional Plus Shares (VEMRX) has a higher volatility of 4.81% compared to Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX) at 2.95%. This indicates that VEMRX's price experiences larger fluctuations and is considered to be riskier than VTSAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VEMRX	VTSAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.81%	2.95%	+1.86%
Volatility (6M) Calculated over the trailing 6-month period	11.72%	9.19%	+2.53%
Volatility (1Y) Calculated over the trailing 1-year period	14.27%	12.19%	+2.08%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.36%	17.36%	-2.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.46%	18.41%	-1.95%

VEMRX vs. VTSAX - Expense Ratio Comparison

VEMRX has a 0.08% expense ratio, which is higher than VTSAX's 0.04% 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

VEMRX vs. VTSAX - Dividend Comparison

VEMRX's dividend yield for the trailing twelve months is around 2.41%, more than VTSAX's 1.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VEMRX Vanguard Emerging Markets Index Fund Institutional Plus Shares	2.41%	2.79%	3.19%	3.53%	4.11%	2.63%	1.92%	3.26%	2.92%	2.35%	2.56%	3.31%
VTSAX Vanguard Total Stock Market Index Fund Admiral Shares	1.00%	1.11%	1.26%	1.42%	1.65%	1.20%	1.41%	1.76%	2.03%	1.71%	1.92%	1.98%

Frequently Asked Questions

Can I hold both VEMRX and VTSAX in my portfolio?

VEMRX and VTSAX have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VEMRX or VTSAX?

VEMRX has higher volatility (4.81%) compared to VTSAX (2.95%). In terms of maximum drawdown, VEMRX dropped -36.01% vs VTSAX's -55.33%.

Which has better risk-adjusted returns?

VTSAX currently has the higher Sharpe Ratio (2.47 vs 2.24), 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.