CGCB vs. IBGA

Last updated Jun 4, 2026

CGCB (Capital Group Core Bond ETF) and IBGA (iShares iBonds Dec 2044 Term Treasury ETF) are both Intermediate Core Bond funds. CGCB is actively managed, while IBGA is passively managed. Over the past year, CGCB returned 5.06% vs 5.33% for IBGA. Their correlation of 0.92 suggests significant overlap in exposure. CGCB charges 0.27%/yr vs 0.07%/yr for IBGA.

Performance

CGCB vs. IBGA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Capital Group Core Bond ETF (CGCB) and iShares iBonds Dec 2044 Term Treasury ETF (IBGA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CGCB achieves a 0.05% return, which is significantly higher than IBGA's -0.37% return.

CGCB

• 1D: -0.19%
• 1M: 0.18%
• YTD: 0.05%
• 6M: 0.01%
• 1Y: 5.06%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBGA

• 1D: -0.41%
• 1M: 0.62%
• YTD: -0.37%
• 6M: -1.42%
• 1Y: 5.33%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CGCB vs. IBGA - Yearly Performance Comparison

	2026 (YTD)	2025	2024
CGCB Capital Group Core Bond ETF	0.05%	7.29%	1.94%
IBGA iShares iBonds Dec 2044 Term Treasury ETF	-0.37%	6.09%	-1.41%

Correlation

The correlation between CGCB and IBGA is 0.92, 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	0.92
Correlation (All Time) Calculated using the full available price history since Jun 13, 2024	0.92

The correlation between CGCB and IBGA has been stable across timeframes, ranging from 0.92 to 0.92 - a consistent structural relationship.

Return for Risk

CGCB vs. IBGA — Risk / Return Rank

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

CGCB

CGCB Risk / Return Rank: 35
CGCB Sharpe Ratio Rank: 36
CGCB Sortino Ratio Rank: 37
CGCB Omega Ratio Rank: 33
CGCB Calmar Ratio Rank: 35
CGCB Martin Ratio Rank: 34

IBGA

IBGA Risk / Return Rank: 20
IBGA Sharpe Ratio Rank: 20
IBGA Sortino Ratio Rank: 20
IBGA Omega Ratio Rank: 19
IBGA Calmar Ratio Rank: 20
IBGA Martin Ratio Rank: 20

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.

CGCB vs. IBGA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Capital Group Core Bond ETF (CGCB) and iShares iBonds Dec 2044 Term Treasury ETF (IBGA). 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.

	CGCB	IBGA	Difference
Sharpe ratio: Return per unit of total volatility	1.29	0.65	+0.64
Sortino ratio: Return per unit of downside risk	1.92	0.99	+0.93
Omega ratio: Gain probability vs. loss probability	1.22	1.11	+0.11
Calmar ratio: Return relative to maximum drawdown	1.71	0.81	+0.90
Martin ratio: Return relative to average drawdown	5.16	2.23	+2.93
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CGCB vs. IBGA - Sharpe Ratio Comparison

The current CGCB Sharpe Ratio is 1.29, which is higher than the IBGA Sharpe Ratio of 0.65. The chart below compares the historical Sharpe Ratios of CGCB and IBGA, 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

	CGCB	IBGA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.29	0.65	+0.64
Sharpe Ratio (All Time) Calculated using the full available price history	1.08	0.22	+0.87

Drawdowns

CGCB vs. IBGA - Drawdown Comparison

The maximum CGCB drawdown since its inception was -5.17%, smaller than the maximum IBGA drawdown of -11.69%. Use the drawdown chart below to compare losses from any high point for CGCB and IBGA.

Drawdown Indicators

	CGCB	IBGA	Difference
Max Drawdown Largest peak-to-trough decline	-5.17%	-11.69%	+6.52%
Max Drawdown (1Y) Largest decline over 1 year	-2.98%	-6.60%	+3.62%
Current Drawdown Current decline from peak	-1.83%	-4.67%	+2.84%
Average Drawdown Average peak-to-trough decline	-1.34%	-5.05%	+3.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.98%	2.40%	-1.42%

Volatility

CGCB vs. IBGA - Volatility Comparison

The current volatility for Capital Group Core Bond ETF (CGCB) is 1.32%, while iShares iBonds Dec 2044 Term Treasury ETF (IBGA) has a volatility of 2.59%. This indicates that CGCB experiences smaller price fluctuations and is considered to be less risky than IBGA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGCB	IBGA	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.32%	2.59%	-1.27%
Volatility (6M) Calculated over the trailing 6-month period	2.80%	5.68%	-2.88%
Volatility (1Y) Calculated over the trailing 1-year period	3.94%	8.21%	-4.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.39%	9.86%	-4.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.39%	9.86%	-4.47%

CGCB vs. IBGA - Expense Ratio Comparison

CGCB has a 0.27% expense ratio, which is higher than IBGA'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

CGCB vs. IBGA - Dividend Comparison

CGCB's dividend yield for the trailing twelve months is around 4.22%, less than IBGA's 4.66% yield.

Position	TTM	2025	2024	2023
CGCB Capital Group Core Bond ETF	4.22%	4.22%	3.99%	0.95%
IBGA iShares iBonds Dec 2044 Term Treasury ETF	4.66%	4.49%	2.03%	0.00%

Frequently Asked Questions

Can I hold both CGCB and IBGA in my portfolio?

With a correlation of 0.92, CGCB and IBGA 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, CGCB or IBGA?

IBGA has higher volatility (2.59%) compared to CGCB (1.32%). In terms of maximum drawdown, CGCB dropped -5.17% vs IBGA's -11.69%.

Which ETF is better, CGCB or IBGA?

On 1-year performance, IBGA leads with 5.33% vs 5.06% for CGCB. On fees, IBGA is cheaper at 0.07% per year. On volatility, CGCB has been the lower-risk option at 1.32%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CGCB or IBGA?

Over the 1-year period, IBGA has performed better with a 5.33% return vs 5.06%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CGCB or IBGA?

IBGA is cheaper with a 0.07% expense ratio, compared with 0.27% for CGCB.

Which ETF pays a higher dividend yield, CGCB or IBGA?

IBGA has the higher dividend yield at 4.66%, compared with 4.22% for CGCB.

What is the main difference between CGCB and IBGA?

They also come from different issuers: Capital Group and iShares. Their fees differ too: 0.27% for CGCB and 0.07% for IBGA.

Which has better risk-adjusted returns?

CGCB currently has the higher Sharpe Ratio (1.29 vs 0.65), 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.