VTWIX vs. VOO

Last updated Jun 23, 2026

VTWIX (Vanguard Total World Stock Index Fund Institutional Shares) and VOO (Vanguard S&P 500 ETF) are both funds - VTWIX is a Large Cap Growth Equities fund managed by Vanguard, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, VTWIX returned 12.85%/yr vs 15.77%/yr for VOO. With a 0.95 correlation, they move nearly in lockstep. VTWIX charges 0.08%/yr vs 0.03%/yr for VOO.

Performance

VTWIX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Total World Stock Index Fund Institutional Shares (VTWIX) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VTWIX achieves a 12.44% return, which is significantly higher than VOO's 9.75% return. Over the past 10 years, VTWIX has underperformed VOO with an annualized return of 12.85%, while VOO has yielded a comparatively higher 15.77% annualized return.

VTWIX

• 1D: 1.21%
• 1M: 1.71%
• YTD: 12.44%
• 6M: 12.24%
• 1Y: 29.61%
• 3Y*: 19.81%
• 5Y*: 11.45%
• 10Y*: 12.85%

VOO

• 1D: -0.29%
• 1M: 0.08%
• YTD: 9.75%
• 6M: 9.30%
• 1Y: 26.77%
• 3Y*: 21.36%
• 5Y*: 13.58%
• 10Y*: 15.77%

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

VTWIX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VTWIX Vanguard Total World Stock Index Fund Institutional Shares	12.44%	22.43%	16.47%	21.87%	-18.00%	18.21%	16.70%	26.77%	-9.68%	24.21%
VOO Vanguard S&P 500 ETF	9.75%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between VTWIX and VOO is 0.96 - 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	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.95

The correlation between VTWIX and VOO has been stable across timeframes, ranging from 0.95 to 0.96 - a consistent structural relationship.

VTWIX vs. VOO - Sectors Allocation Comparison

Sectors	VTWIX	VOO
Technology	27.8%	39.1%
Financial Services	15.9%	10.9%
Industrials	12.0%	7.6%
Consumer Cyclical	9.5%	9.8%
Communication Services	8.3%	10.5%
Healthcare	8.1%	8.3%
Consumer Defensive	4.8%	4.5%
Energy	4.3%	3.2%
Basic Materials	4.2%	1.7%
Utilities	2.7%	2.5%
Real Estate	2.4%	1.8%

Return for Risk

VTWIX vs. VOO — Risk / Return Rank

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

VTWIX

VTWIX Risk / Return Rank: 68
VTWIX Sharpe Ratio Rank: 69
VTWIX Sortino Ratio Rank: 63
VTWIX Omega Ratio Rank: 64
VTWIX Calmar Ratio Rank: 68
VTWIX Martin Ratio Rank: 75

VOO

VOO Risk / Return Rank: 68
VOO Sharpe Ratio Rank: 70
VOO Sortino Ratio Rank: 67
VOO Omega Ratio Rank: 69
VOO Calmar Ratio Rank: 63
VOO Martin Ratio Rank: 74

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.

VTWIX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Total World Stock Index Fund Institutional Shares (VTWIX) and Vanguard S&P 500 ETF (VOO). 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.

	VTWIX	VOO	Difference
Sharpe ratio: Return per unit of total volatility	2.23	2.17	+0.05
Sortino ratio: Return per unit of downside risk	3.03	2.93	+0.10
Omega ratio: Gain probability vs. loss probability	1.41	1.39	+0.01
Calmar ratio: Return relative to maximum drawdown	3.03	3.02	+0.01
Martin ratio: Return relative to average drawdown	13.22	13.58	-0.36

VTWIX vs. VOO - Sharpe Ratio Comparison

The current VTWIX Sharpe Ratio is 2.23, which is comparable to the VOO Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of VTWIX and VOO, 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

VTWIX vs. VOO - Drawdown Comparison

The maximum VTWIX drawdown since its inception was -50.16%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for VTWIX and VOO.

Drawdown Indicators

	VTWIX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-50.16%	-33.99%	-16.17%
Max Drawdown (1Y) Largest decline over 1 year	-9.64%	-8.90%	-0.74%
Max Drawdown (3Y) Largest decline over 3 years	-16.43%	-18.69%	+2.26%
Max Drawdown (5Y) Largest decline over 5 years	-26.39%	-24.52%	-1.87%
Max Drawdown (10Y) Largest decline over 10 years	-34.20%	-33.99%	-0.21%
Current Drawdown Current decline from peak	-0.65%	-1.74%	+1.09%
Average Drawdown Average peak-to-trough decline	-6.95%	-3.68%	-3.27%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.21%	1.98%	+0.23%

Volatility

VTWIX vs. VOO - Volatility Comparison

Vanguard Total World Stock Index Fund Institutional Shares (VTWIX) has a higher volatility of 5.27% compared to Vanguard S&P 500 ETF (VOO) at 4.60%. This indicates that VTWIX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VTWIX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.27%	4.60%	+0.67%
Volatility (6M) Calculated over the trailing 6-month period	10.85%	9.73%	+1.12%
Volatility (1Y) Calculated over the trailing 1-year period	13.12%	12.39%	+0.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.84%	16.90%	-1.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.81%	18.05%	-1.24%

VTWIX vs. VOO - Expense Ratio Comparison

VTWIX has a 0.08% expense ratio, which is higher than VOO'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

VTWIX vs. VOO - Dividend Comparison

VTWIX's dividend yield for the trailing twelve months is around 1.57%, more than VOO's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VOO Vanguard S&P 500 ETF	1.04%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%
VTWIX Vanguard Total World Stock Index Fund Institutional Shares	1.57%	1.82%	1.94%	2.07%	2.19%	1.81%	1.66%	2.32%	2.55%	2.11%	2.40%	2.46%

Frequently Asked Questions

Can I hold both VTWIX and VOO in my portfolio?

With a correlation of 0.96, VTWIX and VOO 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, VTWIX or VOO?

VTWIX has higher volatility (5.27%) compared to VOO (4.60%). In terms of maximum drawdown, VTWIX dropped -50.16% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VTWIX currently has the higher Sharpe Ratio (2.23 vs 2.17), 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.