DFSB vs. GABF

Last updated Jun 3, 2026

DFSB (Dimensional Global Sustainability Fixed Income ETF) and GABF (Gabelli Financial Services Opportunities ETF) are both exchange-traded funds - DFSB is a Global Bonds fund actively managed by Dimensional, while GABF is a Financials Equities fund actively managed by Gabelli. Both are actively managed. Over the past 3 years, DFSB returned 4.89%/yr vs 21.23%/yr for GABF. At a 0.18 correlation, their price movements are largely independent. DFSB charges 0.24%/yr vs 0.10%/yr for GABF.

Performance

DFSB vs. GABF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Dimensional Global Sustainability Fixed Income ETF (DFSB) and Gabelli Financial Services Opportunities ETF (GABF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DFSB achieves a 1.12% return, which is significantly higher than GABF's -5.24% return.

DFSB

• 1D: 0.12%
• 1M: 0.77%
• YTD: 1.12%
• 6M: 0.91%
• 1Y: 4.82%
• 3Y*: 4.89%
• 5Y*: —
• 10Y*: —

GABF

• 1D: 0.09%
• 1M: -1.71%
• YTD: -5.24%
• 6M: -2.61%
• 1Y: -0.98%
• 3Y*: 21.23%
• 5Y*: —
• 10Y*: —

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

DFSB vs. GABF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
DFSB Dimensional Global Sustainability Fixed Income ETF	1.12%	5.22%	2.45%	9.37%	-0.77%
GABF Gabelli Financial Services Opportunities ETF	-5.24%	3.60%	44.38%	38.92%	-6.55%

Correlation

The correlation between DFSB and GABF is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.27
Correlation (3Y) Calculated over the trailing 3-year period	0.22
Correlation (All Time) Calculated using the full available price history since Nov 17, 2022	0.18

Return for Risk

DFSB vs. GABF — Risk / Return Rank

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

DFSB

DFSB Risk / Return Rank: 33
DFSB Sharpe Ratio Rank: 34
DFSB Sortino Ratio Rank: 34
DFSB Omega Ratio Rank: 33
DFSB Calmar Ratio Rank: 30
DFSB Martin Ratio Rank: 31

GABF

GABF Risk / Return Rank: 8
GABF Sharpe Ratio Rank: 8
GABF Sortino Ratio Rank: 8
GABF Omega Ratio Rank: 8
GABF Calmar Ratio Rank: 8
GABF Martin Ratio Rank: 8

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.

DFSB vs. GABF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Dimensional Global Sustainability Fixed Income ETF (DFSB) and Gabelli Financial Services Opportunities ETF (GABF). 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.

	DFSB	GABF	Difference
Sharpe ratio Return per unit of total volatility	1.26	-0.06	+1.32
Sortino ratio Return per unit of downside risk	1.84	0.04	+1.80
Omega ratio Gain probability vs. loss probability	1.22	1.00	+0.22
Calmar ratio Return relative to maximum drawdown	1.51	-0.07	+1.58
Martin ratio Return relative to average drawdown	4.73	-0.16	+4.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DFSB vs. GABF - Sharpe Ratio Comparison

The current DFSB Sharpe Ratio is 1.26, which is higher than the GABF Sharpe Ratio of -0.06. The chart below compares the historical Sharpe Ratios of DFSB and GABF, 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

	DFSB	GABF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.26	-0.06	+1.32
Sharpe Ratio (All Time) Calculated using the full available price history	0.90	0.90	0.00

Drawdowns

DFSB vs. GABF - Drawdown Comparison

The maximum DFSB drawdown since its inception was -5.16%, smaller than the maximum GABF drawdown of -20.86%. Use the drawdown chart below to compare losses from any high point for DFSB and GABF.

Drawdown Indicators

	DFSB	GABF	Difference
Max Drawdown Largest peak-to-trough decline	-5.16%	-20.86%	+15.70%
Max Drawdown (1Y) Largest decline over 1 year	-3.04%	-17.16%	+14.12%
Max Drawdown (3Y) Largest decline over 3 years	-4.37%	-20.86%	+16.49%
Current Drawdown Current decline from peak	-0.84%	-9.89%	+9.05%
Average Drawdown Average peak-to-trough decline	-1.26%	-4.85%	+3.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.97%	7.23%	-6.26%

Volatility

DFSB vs. GABF - Volatility Comparison

The current volatility for Dimensional Global Sustainability Fixed Income ETF (DFSB) is 1.61%, while Gabelli Financial Services Opportunities ETF (GABF) has a volatility of 3.89%. This indicates that DFSB experiences smaller price fluctuations and is considered to be less risky than GABF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DFSB	GABF	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.61%	3.89%	-2.28%
Volatility (6M) Calculated over the trailing 6-month period	3.11%	13.02%	-9.91%
Volatility (1Y) Calculated over the trailing 1-year period	3.84%	17.26%	-13.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.46%	20.53%	-15.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.46%	20.53%	-15.07%

DFSB vs. GABF - Expense Ratio Comparison

DFSB has a 0.24% expense ratio, which is higher than GABF's 0.10% 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

DFSB vs. GABF - Dividend Comparison

DFSB's dividend yield for the trailing twelve months is around 3.60%, more than GABF's 2.07% yield.

Position	TTM	2025	2024	2023	2022
DFSB Dimensional Global Sustainability Fixed Income ETF	3.60%	3.46%	4.35%	5.27%	0.41%
GABF Gabelli Financial Services Opportunities ETF	2.07%	1.96%	4.19%	4.95%	1.31%

Frequently Asked Questions

Can I hold both DFSB and GABF in my portfolio?

DFSB and GABF have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DFSB or GABF?

GABF has higher volatility (3.89%) compared to DFSB (1.61%). In terms of maximum drawdown, DFSB dropped -5.16% vs GABF's -20.86%.

Which ETF is better, DFSB or GABF?

On 3-year performance, GABF leads with 21.23% vs 4.89% for DFSB. On fees, GABF is cheaper at 0.10% per year. On volatility, DFSB has been the lower-risk option at 1.61%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, DFSB or GABF?

Over the 3-year period, GABF has performed better with a 21.23% return vs 4.89%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, DFSB or GABF?

GABF is cheaper with a 0.10% expense ratio, compared with 0.24% for DFSB.

Which ETF pays a higher dividend yield, DFSB or GABF?

DFSB has the higher dividend yield at 3.60%, compared with 2.07% for GABF.

What is the main difference between DFSB and GABF?

DFSB is categorized as Global Bonds, while GABF is Financials Equities. They also come from different issuers: Dimensional and Gabelli. Their fees differ too: 0.24% for DFSB and 0.10% for GABF.

Which has better risk-adjusted returns?

DFSB currently has the higher Sharpe Ratio (1.26 vs -0.06), 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.