CGCB vs. IBTO

Last updated Apr 1, 2026

Compare and contrast key facts about Capital Group Core Bond ETF (CGCB) and iShares iBonds Dec 2033 Term Treasury ETF (IBTO).

CGCB and IBTO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. CGCB is an actively managed fund by Capital Group. It was launched on Sep 26, 2023. IBTO is a passively managed fund by iShares that tracks the performance of the ICE 2033 Maturity US Treasury Index. It was launched on Jun 27, 2023.

Performance

CGCB vs. IBTO - 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 2033 Term Treasury ETF (IBTO). The values are adjusted to include any dividend payments, if applicable.

CGCB vs. IBTO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
CGCB Capital Group Core Bond ETF	-0.07%	7.29%	1.44%	6.80%
IBTO iShares iBonds Dec 2033 Term Treasury ETF	-0.02%	8.23%	-0.87%	6.74%

Returns By Period

In the year-to-date period, CGCB achieves a -0.07% return, which is significantly lower than IBTO's -0.02% return.

CGCB

• 1D: 0.19%
• 1M: -1.94%
• YTD: -0.07%
• 6M: 0.88%
• 1Y: 4.21%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBTO

• 1D: 0.27%
• 1M: -2.09%
• YTD: -0.02%
• 6M: 0.95%
• 1Y: 4.12%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CGCB vs. IBTO - Expense Ratio Comparison

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

CGCB

Capital Group Core Bond ETF

IBTO

iShares iBonds Dec 2033 Term Treasury ETF

Return for Risk

CGCB vs. IBTO — Risk / Return Rank

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

CGCB

CGCB Risk / Return Rank: 52
CGCB Sharpe Ratio Rank: 53
CGCB Sortino Ratio Rank: 49
CGCB Omega Ratio Rank: 43
CGCB Calmar Ratio Rank: 65
CGCB Martin Ratio Rank: 48

IBTO

IBTO Risk / Return Rank: 42
IBTO Sharpe Ratio Rank: 41
IBTO Sortino Ratio Rank: 41
IBTO Omega Ratio Rank: 33
IBTO Calmar Ratio Rank: 56
IBTO Martin Ratio Rank: 40

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. IBTO - 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 2033 Term Treasury ETF (IBTO). 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	IBTO	Difference
Sharpe ratio Return per unit of total volatility	0.93	0.80	+0.13
Sortino ratio Return per unit of downside risk	1.30	1.19	+0.11
Omega ratio Gain probability vs. loss probability	1.17	1.14	+0.03
Calmar ratio Return relative to maximum drawdown	1.62	1.46	+0.16
Martin ratio Return relative to average drawdown	4.49	3.82	+0.68
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. IBTO - Sharpe Ratio Comparison

The current CGCB Sharpe Ratio is 0.93, which is comparable to the IBTO Sharpe Ratio of 0.80. The chart below compares the historical Sharpe Ratios of CGCB and IBTO, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CGCB	IBTO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.93	0.80	+0.13
Sharpe Ratio (All Time) Calculated using the full available price history	1.13	0.48	+0.65

Correlation

The correlation between CGCB and IBTO is 0.93, 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

CGCB vs. IBTO - Dividend Comparison

CGCB's dividend yield for the trailing twelve months is around 4.23%, more than IBTO's 4.10% yield.

	TTM	2025	2024	2023
CGCB Capital Group Core Bond ETF	4.23%	4.22%	3.99%	0.95%
IBTO iShares iBonds Dec 2033 Term Treasury ETF	4.10%	4.05%	4.23%	1.66%

Drawdowns

CGCB vs. IBTO - Drawdown Comparison

The maximum CGCB drawdown since its inception was -5.17%, smaller than the maximum IBTO drawdown of -8.36%. Use the drawdown chart below to compare losses from any high point for CGCB and IBTO.

Drawdown Indicators

	CGCB	IBTO	Difference
Max Drawdown Largest peak-to-trough decline	-5.17%	-8.36%	+3.19%
Max Drawdown (1Y) Largest decline over 1 year	-2.72%	-3.08%	+0.36%
Current Drawdown Current decline from peak	-1.94%	-2.09%	+0.15%
Average Drawdown Average peak-to-trough decline	-1.32%	-2.37%	+1.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.98%	1.18%	-0.20%

Volatility

CGCB vs. IBTO - Volatility Comparison

Capital Group Core Bond ETF (CGCB) and iShares iBonds Dec 2033 Term Treasury ETF (IBTO) have volatilities of 1.73% and 1.75%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGCB	IBTO	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.73%	1.75%	-0.02%
Volatility (6M) Calculated over the trailing 6-month period	2.62%	3.01%	-0.39%
Volatility (1Y) Calculated over the trailing 1-year period	4.57%	5.19%	-0.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.48%	6.74%	-1.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.48%	6.74%	-1.26%