ABNFX vs. ANCFX

Last updated Jun 5, 2026

ABNFX (American Funds The Bond Fund of America® Class F-2) and ANCFX (American Funds Fundamental Investors Class A) are both mutual funds - ABNFX is a Intermediate Core Bond fund managed by American Funds, while ANCFX is a Large Cap Blend Equities fund managed by American Funds. Over the past 10 years, ABNFX returned 1.90%/yr vs 14.82%/yr for ANCFX. At a correlation of -0.12, they often move in opposite directions. ABNFX charges 0.35%/yr vs 0.59%/yr for ANCFX.

Performance

ABNFX vs. ANCFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Funds The Bond Fund of America® Class F-2 (ABNFX) and American Funds Fundamental Investors Class A (ANCFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ABNFX achieves a -0.07% return, which is significantly lower than ANCFX's 14.34% return. Over the past 10 years, ABNFX has underperformed ANCFX with an annualized return of 1.90%, while ANCFX has yielded a comparatively higher 14.82% annualized return.

ABNFX

• 1D: -0.27%
• 1M: 0.01%
• YTD: -0.07%
• 6M: 0.12%
• 1Y: 4.35%
• 3Y*: 3.83%
• 5Y*: -0.10%
• 10Y*: 1.90%

ANCFX

• 1D: -0.69%
• 1M: 4.25%
• YTD: 14.34%
• 6M: 15.35%
• 1Y: 33.32%
• 3Y*: 25.80%
• 5Y*: 14.56%
• 10Y*: 14.82%

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

ABNFX vs. ANCFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ABNFX American Funds The Bond Fund of America® Class F-2	-0.07%	7.42%	1.42%	4.29%	-13.08%	-0.88%	10.86%	8.08%	0.15%	3.48%
ANCFX American Funds Fundamental Investors Class A	14.34%	24.21%	22.73%	25.86%	-16.66%	22.43%	14.92%	27.07%	-8.13%	22.80%

Correlation

The correlation between ABNFX and ANCFX is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.26
Correlation (3Y) Calculated over the trailing 3-year period	0.19
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (10Y) Calculated over the trailing 10-year period	-0.01
Correlation (All Time) Calculated using the full available price history since Aug 4, 2008	-0.12

The correlation between ABNFX and ANCFX shifts across timeframes, from -0.12 (all time) to 0.26 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

ABNFX vs. ANCFX — Risk / Return Rank

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

ABNFX

ABNFX Risk / Return Rank: 19
ABNFX Sharpe Ratio Rank: 20
ABNFX Sortino Ratio Rank: 21
ABNFX Omega Ratio Rank: 18
ABNFX Calmar Ratio Rank: 20
ABNFX Martin Ratio Rank: 18

ANCFX

ANCFX Risk / Return Rank: 68
ANCFX Sharpe Ratio Rank: 70
ANCFX Sortino Ratio Rank: 62
ANCFX Omega Ratio Rank: 63
ANCFX Calmar Ratio Rank: 68
ANCFX Martin Ratio Rank: 78

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.

ABNFX vs. ANCFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Funds The Bond Fund of America® Class F-2 (ABNFX) and American Funds Fundamental Investors Class A (ANCFX). 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.

	ABNFX	ANCFX	Difference
Sharpe ratio: Return per unit of total volatility	1.27	2.46	-1.19
Sortino ratio: Return per unit of downside risk	1.92	3.32	-1.39
Omega ratio: Gain probability vs. loss probability	1.22	1.44	-0.22
Calmar ratio: Return relative to maximum drawdown	1.62	3.17	-1.54
Martin ratio: Return relative to average drawdown	4.83	14.66	-9.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ABNFX vs. ANCFX - Sharpe Ratio Comparison

The current ABNFX Sharpe Ratio is 1.27, which is lower than the ANCFX Sharpe Ratio of 2.46. The chart below compares the historical Sharpe Ratios of ABNFX and ANCFX, 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

	ABNFX	ANCFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.27	2.46	-1.19
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.02	0.87	-0.89
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.39	0.84	-0.45
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.64	+0.01

Drawdowns

ABNFX vs. ANCFX - Drawdown Comparison

The maximum ABNFX drawdown since its inception was -17.69%, smaller than the maximum ANCFX drawdown of -53.29%. Use the drawdown chart below to compare losses from any high point for ABNFX and ANCFX.

Drawdown Indicators

	ABNFX	ANCFX	Difference
Max Drawdown Largest peak-to-trough decline	-17.69%	-53.29%	+35.60%
Max Drawdown (1Y) Largest decline over 1 year	-3.09%	-10.66%	+7.57%
Max Drawdown (3Y) Largest decline over 3 years	-6.12%	-17.97%	+11.85%
Max Drawdown (5Y) Largest decline over 5 years	-17.65%	-25.07%	+7.42%
Max Drawdown (10Y) Largest decline over 10 years	-17.69%	-33.93%	+16.24%
Current Drawdown Current decline from peak	-2.18%	-0.69%	-1.49%
Average Drawdown Average peak-to-trough decline	-3.29%	-7.32%	+4.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.04%	2.30%	-1.26%

Volatility

ABNFX vs. ANCFX - Volatility Comparison

The current volatility for American Funds The Bond Fund of America® Class F-2 (ABNFX) is 1.38%, while American Funds Fundamental Investors Class A (ANCFX) has a volatility of 3.81%. This indicates that ABNFX experiences smaller price fluctuations and is considered to be less risky than ANCFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ABNFX	ANCFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.38%	3.81%	-2.43%
Volatility (6M) Calculated over the trailing 6-month period	2.82%	10.79%	-7.97%
Volatility (1Y) Calculated over the trailing 1-year period	3.95%	13.76%	-9.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.96%	16.80%	-10.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.89%	17.73%	-12.84%

ABNFX vs. ANCFX - Expense Ratio Comparison

ABNFX has a 0.35% expense ratio, which is lower than ANCFX's 0.59% expense ratio.

Dividends

ABNFX vs. ANCFX - Dividend Comparison

ABNFX's dividend yield for the trailing twelve months is around 4.39%, less than ANCFX's 7.48% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ABNFX American Funds The Bond Fund of America® Class F-2	4.39%	4.37%	4.55%	3.19%	2.37%	2.07%	5.15%	3.72%	2.65%	2.10%	2.31%	2.24%
ANCFX American Funds Fundamental Investors Class A	7.48%	8.54%	8.90%	5.80%	4.98%	10.97%	2.61%	6.91%	9.31%	7.28%	4.71%	6.08%

Frequently Asked Questions

Can I hold both ABNFX and ANCFX in my portfolio?

ABNFX and ANCFX have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ABNFX or ANCFX?

ANCFX has higher volatility (3.81%) compared to ABNFX (1.38%). In terms of maximum drawdown, ABNFX dropped -17.69% vs ANCFX's -53.29%.

Which has better risk-adjusted returns?

ANCFX currently has the higher Sharpe Ratio (2.46 vs 1.27), 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.