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VIOO vs. VBK
Performance
Return for Risk
Dividends
Drawdowns
Volatility

VIOO vs. VBK

Last updated Apr 2, 2026

Compare and contrast key facts about Vanguard S&P Small-Cap 600 ETF (VIOO) and Vanguard Small-Cap Growth ETF (VBK).

VIOO and VBK are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. VIOO is a passively managed fund by Vanguard that tracks the performance of the S&P SmallCap 600 Index. It was launched on Sep 7, 2010. VBK is a passively managed fund by Vanguard that tracks the performance of the CRSP US Small Cap Growth Index. It was launched on Jan 26, 2004. Both VIOO and VBK are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

VIOO vs. VBK - Performance Comparison

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

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VIOO vs. VBK - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
VIOO
Vanguard S&P Small-Cap 600 ETF		4.04%6.04%8.48%16.16%-16.26%26.79%11.47%22.68%-8.65%13.16%
VBK
Vanguard Small-Cap Growth ETF		1.01%8.50%16.50%21.45%-28.44%5.66%35.44%32.75%-5.70%21.87%

Returns By Period

In the year-to-date period, VIOO achieves a 4.04% return, which is significantly higher than VBK's 1.01% return. Over the past 10 years, VIOO has underperformed VBK with an annualized return of 9.90%, while VBK has yielded a comparatively higher 10.55% annualized return.

VIOO

1D
0.53%
1M
-4.14%
YTD
4.04%
6M
5.50%
1Y
20.96%
3Y*
10.70%
5Y*
4.20%
10Y*
9.90%

VBK

1D
0.85%
1M
-5.50%
YTD
1.01%
6M
2.29%
1Y
21.17%
3Y*
12.79%
5Y*
2.33%
10Y*
10.55%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Vanguard S&P Small-Cap 600 ETF

Vanguard Small-Cap Growth ETF

Often compared with VIOO:
VIOO vs. VBVIOO vs. IJRVIOO vs. VOVIOO vs. AVUVVIOO vs. VIOVVIOO vs. VTWOVIOO vs. VIOG
Often compared with VBK:
VBK vs. VBVBK vs. VBRVBK vs. VOOVBK vs. AVUVVBK vs. IJRVBK vs. SCHAVBK vs. VIOG

VIOO vs. VBK - Expense Ratio Comparison

VIOO has a 0.10% expense ratio, which is higher than VBK's 0.07% 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%.

VIOO
Vanguard S&P Small-Cap 600 ETF
VBK
Vanguard Small-Cap Growth ETF

Return for Risk

VIOO vs. VBK — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
VIOO
VIOO Risk / Return Rank: 5252
Overall Rank
VIOO Sharpe Ratio Rank: 4949
Sharpe Ratio Rank
VIOO Sortino Ratio Rank: 5252
Sortino Ratio Rank
VIOO Omega Ratio Rank: 4747
Omega Ratio Rank
VIOO Calmar Ratio Rank: 5454
Calmar Ratio Rank
VIOO Martin Ratio Rank: 5656
Martin Ratio Rank
VBK
VBK Risk / Return Rank: 5050
Overall Rank
VBK Sharpe Ratio Rank: 4646
Sharpe Ratio Rank
VBK Sortino Ratio Rank: 4848
Sortino Ratio Rank
VBK Omega Ratio Rank: 4444
Omega Ratio Rank
VBK Calmar Ratio Rank: 5656
Calmar Ratio Rank
VBK Martin Ratio Rank: 5858
Martin Ratio Rank
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.

VIOO vs. VBK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard S&P Small-Cap 600 ETF (VIOO) and Vanguard Small-Cap Growth ETF (VBK). 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.

VIOOVBKDifference

Sharpe ratio

Return per unit of total volatility

0.93

0.87

+0.06

Sortino ratio

Return per unit of downside risk

1.43

1.36

+0.07

Omega ratio

Gain probability vs. loss probability

1.19

1.18

+0.01

Calmar ratio

Return relative to maximum drawdown

1.45

1.49

-0.04

Martin ratio

Return relative to average drawdown

5.76

5.92

-0.16

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VIOO vs. VBK - Sharpe Ratio Comparison

The current VIOO Sharpe Ratio is 0.93, which is comparable to the VBK Sharpe Ratio of 0.87. The chart below compares the historical Sharpe Ratios of VIOO and VBK, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

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Sharpe Ratios by Period

VIOOVBKDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.93

0.87

+0.06

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.20

0.10

+0.10

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.43

0.46

-0.03

Sharpe Ratio (All Time)

Calculated using the full available price history

0.54

0.40

+0.14

Correlation

The correlation between VIOO and VBK is 0.87, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

VIOO vs. VBK - Dividend Comparison

VIOO's dividend yield for the trailing twelve months is around 1.31%, more than VBK's 0.52% yield.

TTM20252024202320222021202020192018201720162015
VIOO
Vanguard S&P Small-Cap 600 ETF		1.31%1.36%1.48%1.47%1.51%1.16%1.09%1.37%1.32%1.11%1.06%1.26%
VBK
Vanguard Small-Cap Growth ETF		0.52%0.54%0.54%0.68%0.55%0.36%0.44%0.57%0.79%0.82%1.08%0.98%

Drawdowns

VIOO vs. VBK - Drawdown Comparison

The maximum VIOO drawdown since its inception was -44.15%, smaller than the maximum VBK drawdown of -58.68%. Use the drawdown chart below to compare losses from any high point for VIOO and VBK.

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Drawdown Indicators

VIOOVBKDifference

Max Drawdown

Largest peak-to-trough decline

-44.15%

-58.68%

+14.53%

Max Drawdown (1Y)

Largest decline over 1 year

-14.66%

-14.56%

-0.10%

Max Drawdown (5Y)

Largest decline over 5 years

-27.93%

-38.39%

+10.46%

Max Drawdown (10Y)

Largest decline over 10 years

-44.15%

-38.70%

-5.45%

Current Drawdown

Current decline from peak

-5.30%

-6.78%

+1.48%

Average Drawdown

Average peak-to-trough decline

-7.40%

-10.22%

+2.82%

Ulcer Index

Depth and duration of drawdowns from previous peaks

3.68%

3.67%

+0.01%

Volatility

VIOO vs. VBK - Volatility Comparison

The current volatility for Vanguard S&P Small-Cap 600 ETF (VIOO) is 6.32%, while Vanguard Small-Cap Growth ETF (VBK) has a volatility of 8.63%. This indicates that VIOO experiences smaller price fluctuations and is considered to be less risky than VBK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

VIOOVBKDifference

Volatility (1M)

Calculated over the trailing 1-month period

6.32%

8.63%

-2.31%

Volatility (6M)

Calculated over the trailing 6-month period

13.11%

15.43%

-2.32%

Volatility (1Y)

Calculated over the trailing 1-year period

22.67%

24.45%

-1.78%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

21.50%

23.48%

-1.98%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

22.98%

22.80%

+0.18%