EES vs. VIOO

Last updated Jun 4, 2026

EES (WisdomTree U.S. SmallCap Fund) and VIOO (Vanguard S&P Small-Cap 600 ETF) are both Small Cap Blend Equities funds - EES tracks the WisdomTree U.S. Small Cap Index while VIOO tracks the S&P SmallCap 600 Index. Both are passively managed. Over the past 10 years, EES returned 10.68%/yr vs 10.67%/yr for VIOO. Their correlation of 0.94 suggests significant overlap in exposure. EES charges 0.38%/yr vs 0.10%/yr for VIOO.

Performance

EES vs. VIOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WisdomTree U.S. SmallCap Fund (EES) and Vanguard S&P Small-Cap 600 ETF (VIOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EES achieves a 12.00% return, which is significantly lower than VIOO's 15.34% return. Both investments have delivered pretty close results over the past 10 years, with EES having a 10.68% annualized return and VIOO not far behind at 10.67%.

EES

• 1D: -1.53%
• 1M: 0.47%
• YTD: 12.00%
• 6M: 11.97%
• 1Y: 29.80%
• 3Y*: 15.30%
• 5Y*: 6.23%
• 10Y*: 10.68%

VIOO

• 1D: -0.88%
• 1M: 1.64%
• YTD: 15.34%
• 6M: 14.20%
• 1Y: 31.68%
• 3Y*: 14.40%
• 5Y*: 5.66%
• 10Y*: 10.67%

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

EES vs. VIOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EES WisdomTree U.S. SmallCap Fund	12.00%	6.99%	9.86%	18.53%	-16.18%	34.39%	3.06%	21.68%	-10.12%	12.42%
VIOO Vanguard S&P Small-Cap 600 ETF	15.34%	6.04%	8.48%	16.16%	-16.26%	26.79%	11.47%	22.68%	-8.65%	13.16%

Correlation

The correlation between EES and VIOO is 0.95, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since Sep 10, 2010	0.94

The correlation between EES and VIOO has been stable across timeframes, ranging from 0.94 to 0.97 - a consistent structural relationship.

EES vs. VIOO - Sectors Allocation Comparison

Sectors	EES	VIOO
Financial Services	21.8%	16.9%
Technology	14.2%	15.5%
Consumer Cyclical	13.4%	13.4%
Industrials	12.5%	15.5%
Healthcare	10.3%	11.0%
Energy	7.9%	5.9%
Consumer Defensive	5.3%	3.5%
Basic Materials	4.9%	5.1%
Real Estate	4.8%	7.7%
Communication Services	3.1%	3.6%
Utilities	1.7%	2.0%

Return for Risk

EES vs. VIOO — Risk / Return Rank

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

EES

EES Risk / Return Rank: 57
EES Sharpe Ratio Rank: 49
EES Sortino Ratio Rank: 52
EES Omega Ratio Rank: 48
EES Calmar Ratio Rank: 75
EES Martin Ratio Rank: 62

VIOO

VIOO Risk / Return Rank: 58
VIOO Sharpe Ratio Rank: 52
VIOO Sortino Ratio Rank: 54
VIOO Omega Ratio Rank: 49
VIOO Calmar Ratio Rank: 72
VIOO Martin Ratio Rank: 65

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.

EES vs. VIOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree U.S. SmallCap Fund (EES) and Vanguard S&P Small-Cap 600 ETF (VIOO). 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.

	EES	VIOO	Difference
Sharpe ratio: Return per unit of total volatility	1.72	1.82	-0.09
Sortino ratio: Return per unit of downside risk	2.51	2.64	-0.13
Omega ratio: Gain probability vs. loss probability	1.30	1.31	-0.01
Calmar ratio: Return relative to maximum drawdown	3.75	3.63	+0.12
Martin ratio: Return relative to average drawdown	11.05	12.14	-1.10
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EES vs. VIOO - Sharpe Ratio Comparison

The current EES Sharpe Ratio is 1.72, which is comparable to the VIOO Sharpe Ratio of 1.82. The chart below compares the historical Sharpe Ratios of EES and VIOO, 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

	EES	VIOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.72	1.82	-0.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.29	0.27	+0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.45	0.47	-0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.34	0.57	-0.23

Drawdowns

EES vs. VIOO - Drawdown Comparison

The maximum EES drawdown since its inception was -63.66%, which is greater than VIOO's maximum drawdown of -44.15%. Use the drawdown chart below to compare losses from any high point for EES and VIOO.

Drawdown Indicators

	EES	VIOO	Difference
Max Drawdown Largest peak-to-trough decline	-63.66%	-44.15%	-19.51%
Max Drawdown (1Y) Largest decline over 1 year	-7.98%	-8.77%	+0.79%
Max Drawdown (3Y) Largest decline over 3 years	-27.15%	-27.93%	+0.78%
Max Drawdown (5Y) Largest decline over 5 years	-27.15%	-27.93%	+0.78%
Max Drawdown (10Y) Largest decline over 10 years	-50.52%	-44.15%	-6.37%
Current Drawdown Current decline from peak	-1.53%	-0.89%	-0.64%
Average Drawdown Average peak-to-trough decline	-10.37%	-7.33%	-3.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.70%	2.62%	+0.08%

Volatility

EES vs. VIOO - Volatility Comparison

The current volatility for WisdomTree U.S. SmallCap Fund (EES) is 4.03%, while Vanguard S&P Small-Cap 600 ETF (VIOO) has a volatility of 4.40%. This indicates that EES experiences smaller price fluctuations and is considered to be less risky than VIOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EES	VIOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.03%	4.40%	-0.37%
Volatility (6M) Calculated over the trailing 6-month period	11.34%	11.71%	-0.37%
Volatility (1Y) Calculated over the trailing 1-year period	17.42%	17.59%	-0.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.53%	21.40%	+0.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.80%	22.99%	+0.81%

EES vs. VIOO - Expense Ratio Comparison

EES has a 0.38% expense ratio, which is higher than VIOO's 0.10% expense ratio.

Dividends

EES vs. VIOO - Dividend Comparison

EES's dividend yield for the trailing twelve months is around 1.12%, less than VIOO's 1.18% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EES WisdomTree U.S. SmallCap Fund	1.12%	1.29%	1.37%	1.18%	1.12%	1.69%	1.29%	1.31%	1.81%	0.93%	1.02%	1.38%
VIOO Vanguard S&P Small-Cap 600 ETF	1.18%	1.36%	1.48%	1.47%	1.51%	1.16%	1.09%	1.37%	1.32%	1.11%	1.06%	1.26%

Frequently Asked Questions

Can I hold both EES and VIOO in my portfolio?

With a correlation of 0.95, EES and VIOO 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, EES or VIOO?

VIOO has higher volatility (4.40%) compared to EES (4.03%). In terms of maximum drawdown, EES dropped -63.66% vs VIOO's -44.15%.

Which ETF is better, EES or VIOO?

On 10-year performance, EES leads with 10.68% vs 10.67% for VIOO. On fees, VIOO is cheaper at 0.10% per year. On volatility, EES has been the lower-risk option at 4.03%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EES or VIOO?

Over the 10-year period, EES has performed better with a 10.68% return vs 10.67%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EES or VIOO?

VIOO is cheaper with a 0.10% expense ratio, compared with 0.38% for EES.

Which ETF pays a higher dividend yield, EES or VIOO?

VIOO has the higher dividend yield at 1.18%, compared with 1.12% for EES.

What is the main difference between EES and VIOO?

EES tracks WisdomTree U.S. Small Cap Index, while VIOO tracks S&P SmallCap 600 Index. They also come from different issuers: WisdomTree and Vanguard. Their fees differ too: 0.38% for EES and 0.10% for VIOO.

Which has better risk-adjusted returns?

VIOO currently has the higher Sharpe Ratio (1.82 vs 1.72), 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.