CGUI vs. VBIL

Last updated Jun 4, 2026

CGUI (Capital Group Ultra Short Income ETF) and VBIL (Vanguard 0-3 Month Treasury Bill ETF) are both Ultrashort Bond funds. CGUI is actively managed, while VBIL is passively managed. Over the past year, CGUI returned 4.42% vs 3.93% for VBIL. At a 0.10 correlation, their price movements are largely independent. CGUI charges 0.18%/yr vs 0.07%/yr for VBIL.

Performance

CGUI vs. VBIL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Capital Group Ultra Short Income ETF (CGUI) and Vanguard 0-3 Month Treasury Bill ETF (VBIL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

As of year-to-date, both investments have demonstrated similar returns, with CGUI at 1.50% and VBIL at 1.50%.

CGUI

• 1D: -0.04%
• 1M: 0.29%
• YTD: 1.50%
• 6M: 1.84%
• 1Y: 4.42%
• 3Y*: —
• 5Y*: —
• 10Y*: —

VBIL

• 1D: 0.01%
• 1M: 0.29%
• YTD: 1.50%
• 6M: 1.80%
• 1Y: 3.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CGUI vs. VBIL - Yearly Performance Comparison

	2026 (YTD)	2025
CGUI Capital Group Ultra Short Income ETF	1.50%	4.45%
VBIL Vanguard 0-3 Month Treasury Bill ETF	1.50%	3.71%

Correlation

The correlation between CGUI and VBIL is 0.03, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.03
Correlation (All Time) Calculated using the full available price history since Feb 12, 2025	0.10

Return for Risk

CGUI vs. VBIL — Risk / Return Rank

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

CGUI

CGUI Risk / Return Rank: 99
CGUI Sharpe Ratio Rank: 98
CGUI Sortino Ratio Rank: 99
CGUI Omega Ratio Rank: 99
CGUI Calmar Ratio Rank: 99
CGUI Martin Ratio Rank: 99

VBIL

VBIL Risk / Return Rank: 100
VBIL Sharpe Ratio Rank: 100
VBIL Sortino Ratio Rank: 100
VBIL Omega Ratio Rank: 100
VBIL Calmar Ratio Rank: 99
VBIL Martin Ratio Rank: 100

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.

CGUI vs. VBIL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Capital Group Ultra Short Income ETF (CGUI) and Vanguard 0-3 Month Treasury Bill ETF (VBIL). 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.

	CGUI	VBIL	Difference
Sharpe ratio: Return per unit of total volatility	5.99	15.17	-9.18
Sortino ratio: Return per unit of downside risk	10.92	39.11	-28.19
Omega ratio: Gain probability vs. loss probability	2.66	21.10	-18.44
Calmar ratio: Return relative to maximum drawdown	24.99	42.61	-17.62
Martin ratio: Return relative to average drawdown	105.06	532.54	-427.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CGUI vs. VBIL - Sharpe Ratio Comparison

The current CGUI Sharpe Ratio is 5.99, which is lower than the VBIL Sharpe Ratio of 15.17. The chart below compares the historical Sharpe Ratios of CGUI and VBIL, 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

	CGUI	VBIL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.99	15.17	-9.18
Sharpe Ratio (All Time) Calculated using the full available price history	6.20	13.44	-7.23

Drawdowns

CGUI vs. VBIL - Drawdown Comparison

The maximum CGUI drawdown since its inception was -0.18%, which is greater than VBIL's maximum drawdown of -0.09%. Use the drawdown chart below to compare losses from any high point for CGUI and VBIL.

Drawdown Indicators

	CGUI	VBIL	Difference
Max Drawdown Largest peak-to-trough decline	-0.18%	-0.09%	-0.09%
Max Drawdown (1Y) Largest decline over 1 year	-0.18%	-0.09%	-0.09%
Current Drawdown Current decline from peak	-0.04%	0.00%	-0.04%
Average Drawdown Average peak-to-trough decline	-0.02%	-0.00%	-0.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.04%	0.01%	+0.03%

Volatility

CGUI vs. VBIL - Volatility Comparison

Capital Group Ultra Short Income ETF (CGUI) has a higher volatility of 0.30% compared to Vanguard 0-3 Month Treasury Bill ETF (VBIL) at 0.06%. This indicates that CGUI's price experiences larger fluctuations and is considered to be riskier than VBIL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGUI	VBIL	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.30%	0.06%	+0.24%
Volatility (6M) Calculated over the trailing 6-month period	0.56%	0.16%	+0.40%
Volatility (1Y) Calculated over the trailing 1-year period	0.74%	0.26%	+0.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.80%	0.30%	+0.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.80%	0.30%	+0.50%

CGUI vs. VBIL - Expense Ratio Comparison

CGUI has a 0.18% expense ratio, which is higher than VBIL'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%.

Dividends

CGUI vs. VBIL - Dividend Comparison

CGUI's dividend yield for the trailing twelve months is around 3.89%, more than VBIL's 3.65% yield.

Position	TTM	2025	2024
CGUI Capital Group Ultra Short Income ETF	3.89%	4.17%	2.62%
VBIL Vanguard 0-3 Month Treasury Bill ETF	3.65%	3.12%	0.00%

Frequently Asked Questions

Can I hold both CGUI and VBIL in my portfolio?

CGUI and VBIL have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CGUI or VBIL?

CGUI has higher volatility (0.30%) compared to VBIL (0.06%). In terms of maximum drawdown, CGUI dropped -0.18% vs VBIL's -0.09%.

Which ETF is better, CGUI or VBIL?

On 1-year performance, CGUI leads with 4.42% vs 3.93% for VBIL. On fees, VBIL is cheaper at 0.07% per year. On volatility, VBIL has been the lower-risk option at 0.06%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CGUI or VBIL?

Over the 1-year period, CGUI has performed better with a 4.42% return vs 3.93%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CGUI or VBIL?

VBIL is cheaper with a 0.07% expense ratio, compared with 0.18% for CGUI.

Which ETF pays a higher dividend yield, CGUI or VBIL?

CGUI has the higher dividend yield at 3.89%, compared with 3.65% for VBIL.

What is the main difference between CGUI and VBIL?

They also come from different issuers: Capital Group and Vanguard. Their fees differ too: 0.18% for CGUI and 0.07% for VBIL.

Which has better risk-adjusted returns?

VBIL currently has the higher Sharpe Ratio (15.17 vs 5.99), 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.