ABNFX vs. FIPDX
ABNFX (American Funds The Bond Fund of America® Class F-2) and FIPDX (Fidelity Inflation-Protected Bond Index Fund) are both mutual funds - ABNFX is a Intermediate Core Bond fund actively managed by American Funds, while FIPDX is a Inflation-Protected Bonds fund tracking the Bloomberg US Treasury Inflation-Protected Securities Index. ABNFX is actively managed, while FIPDX is passively managed. Over the past 10 years, ABNFX returned 1.66%/yr vs 2.41%/yr for FIPDX. Their 0.79 correlation means they have sometimes moved together and sometimes differently. ABNFX charges 0.34%/yr vs 0.05%/yr for FIPDX.
Performance
ABNFX vs. FIPDX - Performance Comparison
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Returns By Period
In the year-to-date period, ABNFX achieves a -0.96% return, which is significantly lower than FIPDX's 0.55% return. Over the past 10 years, ABNFX has underperformed FIPDX with an annualized return of 1.66%, while FIPDX has yielded a comparatively higher 2.41% annualized return.
ABNFX
- 1D
- 0.00%
- 1M
- -1.25%
- 6M
- -1.22%
- YTD
- -0.96%
- 1Y
- 1.57%
- 3Y*
- 3.62%
- 5Y*
- -0.56%
- 10Y*
- 1.66%
- ALL TIME*
- 2.77%
FIPDX
- 1D
- -0.11%
- 1M
- -0.44%
- 6M
- 0.11%
- YTD
- 0.55%
- 1Y
- 2.01%
- 3Y*
- 3.66%
- 5Y*
- 0.31%
- 10Y*
- 2.41%
- ALL TIME*
- 2.16%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
ABNFX vs. FIPDX - 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 | -0.96% | 7.42% | 1.42% | 4.29% | -13.08% | -0.88% | 10.86% | 8.08% | 0.15% | 3.48% |
FIPDX Fidelity Inflation-Protected Bond Index Fund | 0.55% | 6.90% | 2.00% | 3.77% | -12.09% | 5.94% | 10.90% | 8.32% | -1.37% | 2.98% |
Correlation
The correlation between ABNFX and FIPDX is 0.73, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.73 |
Correlation (3Y) Balances recent behavior with more history. | 0.83 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.80 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.79 |
Correlation (All Time) Calculated using the full available price history since May 10, 2012 | 0.79 |
The correlation between ABNFX and FIPDX shifts across timeframes, from 0.73 (1 year) to 0.83 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
ABNFX vs. FIPDX — Risk / Return Rank
ABNFX
FIPDX
ABNFX vs. FIPDX - 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 Fidelity Inflation-Protected Bond Index Fund (FIPDX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| ABNFX | FIPDX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.01 | ||
| Sortino ratioReturn per unit of downside risk | +0.03 | ||
| Omega ratioGain probability vs. loss probability | 1.13 | 1.13 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 0.93 | 1.27 | -0.34 |
| Martin ratioReturn relative to average drawdown | 2.27 | 3.38 | -1.12 |
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Drawdowns
ABNFX vs. FIPDX - Drawdown Comparison
The maximum ABNFX drawdown since its inception was -17.69%, which is greater than FIPDX's maximum drawdown of -14.32%. Use the drawdown chart below to compare losses from any high point for ABNFX and FIPDX.
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Drawdown Indicators
| ABNFX | FIPDX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.69% | -14.32% | -3.37% |
Max Drawdown (1Y)Largest decline over 1 year | -3.09% | -1.94% | -1.15% |
Max Drawdown (3Y)Largest decline over 3 years | -5.11% | -3.95% | -1.16% |
Max Drawdown (5Y)Largest decline over 5 years | -17.65% | -14.32% | -3.33% |
Max Drawdown (10Y)Largest decline over 10 years | -17.69% | -14.32% | -3.37% |
Current DrawdownCurrent decline from peak | -3.05% | -1.19% | -1.86% |
Average DrawdownAverage peak-to-trough decline | -3.28% | -4.43% | +1.15% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.26% | 0.73% | +0.53% |
Volatility
ABNFX vs. FIPDX - Volatility Comparison
American Funds The Bond Fund of America® Class F-2 (ABNFX) has a higher volatility of 0.95% compared to Fidelity Inflation-Protected Bond Index Fund (FIPDX) at 0.76%. This indicates that ABNFX's price experiences larger fluctuations and is considered to be riskier than FIPDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ABNFX | FIPDX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.95% | 0.76% | +0.19% |
Volatility (6M)Calculated over the trailing 6-month period | 3.02% | 2.49% | +0.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.81% | 3.33% | +0.48% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.97% | 5.96% | +0.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.90% | 5.36% | -0.46% |
ABNFX vs. FIPDX - Expense Ratio Comparison
ABNFX has a 0.34% expense ratio, which is higher than FIPDX's 0.05% expense ratio.
Dividends
ABNFX vs. FIPDX - Dividend Comparison
ABNFX's dividend yield for the trailing twelve months is around 4.06%, less than FIPDX's 4.36% 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 | 4.06% | 4.37% | 4.55% | 3.19% | 2.37% | 2.07% | 5.15% | 3.72% | 2.65% | 2.10% | 2.31% | 2.24% |
FIPDX Fidelity Inflation-Protected Bond Index Fund | 4.36% | 4.18% | 3.75% | 3.56% | 8.87% | 4.76% | 1.24% | 1.97% | 2.26% | 1.29% | 1.34% | 0.38% |
Frequently Asked Questions
ABNFX and FIPDX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ABNFX has higher volatility (0.95%) compared to FIPDX (0.76%). In terms of maximum drawdown, ABNFX dropped -17.69% vs FIPDX's -14.32%.
ABNFX currently has the higher Sharpe Ratio (0.76 vs 0.74), 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.
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