ABNDX vs. UMMGX

Last updated Jun 5, 2026

ABNDX (American Funds The Bond Fund of America) and UMMGX (Columbia Bond Fund) are both Intermediate Core Bond funds. A 0.80 correlation means they provide meaningful diversification when combined. ABNDX charges 0.55%/yr vs 0.52%/yr for UMMGX.

Performance

ABNDX vs. UMMGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds The Bond Fund of America (ABNDX) and Columbia Bond Fund (UMMGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

ABNDX

• 1D: -0.27%
• 1M: -0.01%
• YTD: -0.17%
• 6M: -0.00%
• 1Y: 4.09%
• 3Y*: 3.58%
• 5Y*: -0.31%
• 10Y*: 1.65%

UMMGX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ABNDX vs. UMMGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ABNDX American Funds The Bond Fund of America	-0.17%	7.16%	1.17%	4.34%	-13.24%	-1.33%	10.72%	7.83%	-0.12%	3.21%
UMMGX Columbia Bond Fund	0.03%	8.03%	2.06%	6.73%	-15.66%	-0.79%	9.10%	9.23%	-0.50%	3.73%

Correlation

The correlation between ABNDX and UMMGX is 0.80, 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	0.80
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.93
Correlation (All Time) Calculated using the full available price history since Jan 10, 1986	0.80

The correlation between ABNDX and UMMGX shifts across timeframes, from 0.80 (all time) to 0.96 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ABNDX vs. UMMGX — Risk / Return Rank

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

ABNDX

ABNDX Risk / Return Rank: 18
ABNDX Sharpe Ratio Rank: 18
ABNDX Sortino Ratio Rank: 19
ABNDX Omega Ratio Rank: 17
ABNDX Calmar Ratio Rank: 18
ABNDX Martin Ratio Rank: 17

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.

ABNDX vs. UMMGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds The Bond Fund of America (ABNDX) and Columbia Bond Fund (UMMGX). 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.

	ABNDX	UMMGX	Difference
Sharpe ratio: Return per unit of total volatility	1.21	—	—
Sortino ratio: Return per unit of downside risk	1.83	—	—
Omega ratio: Gain probability vs. loss probability	1.21	—	—
Calmar ratio: Return relative to maximum drawdown	1.52	—	—
Martin ratio: Return relative to average drawdown	4.53	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	ABNDX	UMMGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.21	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.05	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.34	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.00	—	—

Drawdowns

Drawdown Indicators

	ABNDX	UMMGX	Difference
Max Drawdown Largest peak-to-trough decline	-18.18%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-3.13%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-6.19%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-18.15%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-18.18%	—	—
Current Drawdown Current decline from peak	-3.33%	—	—
Average Drawdown Average peak-to-trough decline	-3.22%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	1.05%	—	—

Volatility

Volatility by Period

	ABNDX	UMMGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.37%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.80%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.93%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.95%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.88%	—	—

ABNDX vs. UMMGX - Expense Ratio Comparison

ABNDX has a 0.55% expense ratio, which is higher than UMMGX's 0.52% expense ratio.

Dividends

ABNDX vs. UMMGX - Dividend Comparison

ABNDX's dividend yield for the trailing twelve months is around 4.15%, more than UMMGX's 3.41% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ABNDX American Funds The Bond Fund of America	4.15%	4.13%	4.30%	3.24%	2.17%	1.62%	5.03%	3.49%	2.38%	1.84%	1.77%	2.00%
UMMGX Columbia Bond Fund	3.41%	4.20%	3.70%	3.73%	2.73%	1.76%	4.77%	4.21%	2.71%	1.88%	4.66%	3.56%

Frequently Asked Questions

Can I hold both ABNDX and UMMGX in my portfolio?

ABNDX and UMMGX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.