DFAS vs. VBK

Last updated Aug 2, 2026

DFAS (Dimensional U.S. Small Cap ETF) and VBK (Vanguard Small-Cap Growth ETF) are both exchange-traded funds - DFAS is a Small Cap Blend Equities fund actively managed by Dimensional, while VBK is a Small Cap Growth Equities fund tracking the CRSP US Small Cap Growth Index. DFAS is actively managed, while VBK is passively managed. Over the past 5 years, DFAS returned 8.65%/yr vs 4.14%/yr for VBK. Their correlation of 0.91 means they have usually moved in the same direction. DFAS charges 0.26%/yr vs 0.05%/yr for VBK.

Performance

DFAS vs. VBK - Performance Comparison

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

Returns By Period

In the year-to-date period, DFAS achieves a 16.93% return, which is significantly higher than VBK's 12.94% return.

DFAS

• 1D: -0.17%
• 1M: -0.61%
• 6M: 10.95%
• YTD: 16.93%
• 1Y: 29.19%
• 3Y*: 13.31%
• 5Y*: 8.65%
• 10Y*: —
• ALL TIME*: 7.93%

VBK

• 1D: -0.27%
• 1M: -4.86%
• 6M: 9.06%
• YTD: 12.94%
• 1Y: 23.19%
• 3Y*: 13.33%
• 5Y*: 4.14%
• 10Y*: 10.90%
• ALL TIME*: 9.75%

*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)
DFAS Dimensional U.S. Small Cap ETF	$35.83M	$42.77M	$37.37M
VBK Vanguard Small-Cap Growth ETF	$67.40M	$71.27M	$83.02M

DFAS vs. VBK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
DFAS Dimensional U.S. Small Cap ETF	16.93%	8.17%	10.21%	17.83%	-13.84%	4.52%
VBK Vanguard Small-Cap Growth ETF	12.94%	8.50%	16.50%	21.45%	-28.44%	-0.69%

Correlation

The correlation between DFAS and VBK is 0.86, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.86
Correlation (3Y) Balances recent behavior with more history.	0.91
Correlation (5Y) Shows whether the relationship held over a longer period.	0.91
Correlation (All Time) Calculated using the full available price history since Jun 14, 2021	0.91

The correlation between DFAS and VBK has been stable across timeframes, ranging from 0.86 to 0.91 - a consistent structural relationship.

DFAS vs. VBK - Sectors Allocation Comparison

Sectors	DFAS	VBK
Financial Services	19.6%	5.7%
Industrials	19.0%	23.4%
Technology	14.7%	27.1%
Consumer Cyclical	13.1%	8.9%
Healthcare	13.0%	17.9%
Energy	5.9%	3.4%
Basic Materials	4.8%	3.1%
Consumer Defensive	4.2%	2.0%
Utilities	2.7%	1.1%
Communication Services	2.5%	3.6%
Real Estate	0.7%	3.7%

Return for Risk

DFAS vs. VBK — Risk / Return Rank

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

DFAS

DFAS Risk / Return Rank: 75
DFAS Sharpe Ratio Rank: 72
DFAS Sortino Ratio Rank: 76
DFAS Omega Ratio Rank: 68
DFAS Calmar Ratio Rank: 80
DFAS Martin Ratio Rank: 79

VBK

VBK Risk / Return Rank: 46
VBK Sharpe Ratio Rank: 42
VBK Sortino Ratio Rank: 42
VBK Omega Ratio Rank: 39
VBK Calmar Ratio Rank: 53
VBK Martin Ratio Rank: 54

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.

DFAS vs. VBK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Dimensional U.S. Small Cap ETF (DFAS) 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.

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.

	DFAS	VBK	Difference
Sharpe ratio: Return per unit of total volatility	1.62	1.04	+0.58
Sortino ratio: Return per unit of downside risk	2.42	1.55	+0.87
Omega ratio: Gain probability vs. loss probability	1.29	1.18	+0.10
Calmar ratio: Return relative to maximum drawdown	2.88	1.86	+1.03
Martin ratio: Return relative to average drawdown	10.09	6.29	+3.80

DFAS vs. VBK - Sharpe Ratio Comparison

The current DFAS Sharpe Ratio is 1.62, which is higher than the VBK Sharpe Ratio of 1.04. The chart below compares the historical Sharpe Ratios of DFAS and VBK, 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

DFAS vs. VBK - Drawdown Comparison

The maximum DFAS drawdown since its inception was -26.13%, smaller than the maximum VBK drawdown of -58.68%. Use the drawdown chart below to compare losses from any high point for DFAS and VBK.

Drawdown Indicators

	DFAS	VBK	Difference
Max Drawdown Largest peak-to-trough decline	-26.13%	-58.68%	+32.55%
Max Drawdown (1Y) Largest decline over 1 year	-9.36%	-11.44%	+2.08%
Max Drawdown (3Y) Largest decline over 3 years	-26.13%	-27.54%	+1.41%
Max Drawdown (5Y) Largest decline over 5 years	-26.13%	-38.39%	+12.26%
Max Drawdown (10Y) Largest decline over 10 years	—	-38.70%	—
Current Drawdown Current decline from peak	-1.59%	-6.90%	+5.31%
Average Drawdown Average peak-to-trough decline	-8.08%	-10.10%	+2.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.67%	3.37%	-0.70%

Volatility

DFAS vs. VBK - Volatility Comparison

The current volatility for Dimensional U.S. Small Cap ETF (DFAS) is 3.36%, while Vanguard Small-Cap Growth ETF (VBK) has a volatility of 5.16%. This indicates that DFAS 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.

Volatility by Period

	DFAS	VBK	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.36%	5.16%	-1.80%
Volatility (6M) Calculated over the trailing 6-month period	11.54%	15.93%	-4.39%
Volatility (1Y) Calculated over the trailing 1-year period	16.67%	20.39%	-3.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.67%	23.65%	-2.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.66%	22.91%	-2.25%

DFAS vs. VBK - Expense Ratio Comparison

DFAS has a 0.26% expense ratio, which is higher than VBK's 0.05% 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

DFAS vs. VBK - Dividend Comparison

DFAS's dividend yield for the trailing twelve months is around 0.98%, more than VBK's 0.45% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFAS Dimensional U.S. Small Cap ETF	0.98%	0.99%	0.93%	1.00%	1.03%	2.87%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VBK Vanguard Small-Cap Growth ETF	0.45%	0.54%	0.54%	0.68%	0.55%	0.36%	0.44%	0.57%	0.79%	0.82%	1.08%	0.98%

Frequently Asked Questions

Can I hold both DFAS and VBK in my portfolio?

DFAS and VBK have a correlation of 0.86, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DFAS or VBK?

VBK has higher volatility (5.16%) compared to DFAS (3.36%). In terms of maximum drawdown, DFAS dropped -26.13% vs VBK's -58.68%.

Which ETF is better, DFAS or VBK?

On 5-year performance, DFAS leads with 8.65% vs 4.14% for VBK. On fees, VBK is cheaper at 0.05% per year. On volatility, DFAS has been the lower-risk option at 3.36%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, DFAS or VBK?

Over the 5-year period, DFAS has performed better with a 8.65% return vs 4.14%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, DFAS or VBK?

VBK is cheaper with a 0.05% expense ratio, compared with 0.26% for DFAS.

Which ETF pays a higher dividend yield, DFAS or VBK?

DFAS has the higher dividend yield at 0.98%, compared with 0.45% for VBK.

What is the main difference between DFAS and VBK?

DFAS is categorized as Small Cap Blend Equities, while VBK is Small Cap Growth Equities. They also come from different issuers: Dimensional and Vanguard. Their fees differ too: 0.26% for DFAS and 0.05% for VBK.

Which has better risk-adjusted returns?

DFAS currently has the higher Sharpe Ratio (1.62 vs 1.04), 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.