CPTNX vs. RFBAX
Compare and contrast key facts about American Century Government Bond Fund (CPTNX) and Davis Government Bond Fund (RFBAX).
CPTNX is managed by American Century. It was launched on May 15, 1980. RFBAX is managed by Davis Funds. It was launched on Nov 30, 1994.
Performance
CPTNX vs. RFBAX - Performance Comparison
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CPTNX vs. RFBAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CPTNX American Century Government Bond Fund | -0.43% | 7.26% | 0.32% | 3.51% | -13.10% | -1.24% | 6.71% | 6.16% | 0.57% | 2.15% |
RFBAX Davis Government Bond Fund | 0.32% | 4.49% | 4.33% | 3.63% | -5.29% | -1.48% | 1.69% | 3.23% | 0.42% | 0.21% |
Returns By Period
In the year-to-date period, CPTNX achieves a -0.43% return, which is significantly lower than RFBAX's 0.32% return. Over the past 10 years, CPTNX has underperformed RFBAX with an annualized return of 0.87%, while RFBAX has yielded a comparatively higher 1.03% annualized return.
CPTNX
- 1D
- 0.54%
- 1M
- -2.29%
- YTD
- -0.43%
- 6M
- 0.79%
- 1Y
- 3.89%
- 3Y*
- 2.51%
- 5Y*
- -0.51%
- 10Y*
- 0.87%
RFBAX
- 1D
- 0.00%
- 1M
- -0.39%
- YTD
- 0.32%
- 6M
- 0.87%
- 1Y
- 3.01%
- 3Y*
- 3.84%
- 5Y*
- 1.21%
- 10Y*
- 1.03%
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CPTNX vs. RFBAX - Expense Ratio Comparison
CPTNX has a 0.47% expense ratio, which is lower than RFBAX's 1.00% expense ratio.
Return for Risk
CPTNX vs. RFBAX — Risk / Return Rank
CPTNX
RFBAX
CPTNX vs. RFBAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Government Bond Fund (CPTNX) and Davis Government Bond Fund (RFBAX). 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.
| CPTNX | RFBAX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.95 | 1.81 | -0.86 |
Sortino ratioReturn per unit of downside risk | 1.37 | 2.96 | -1.59 |
Omega ratioGain probability vs. loss probability | 1.17 | 1.49 | -0.33 |
Calmar ratioReturn relative to maximum drawdown | 1.67 | 4.51 | -2.83 |
Martin ratioReturn relative to average drawdown | 4.60 | 15.32 | -10.72 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| CPTNX | RFBAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.95 | 1.81 | -0.86 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.08 | 0.59 | -0.67 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.18 | 0.58 | -0.41 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.15 | 1.04 | +0.11 |
Correlation
The correlation between CPTNX and RFBAX is 0.66, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
CPTNX vs. RFBAX - Dividend Comparison
CPTNX's dividend yield for the trailing twelve months is around 3.73%, more than RFBAX's 2.77% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CPTNX American Century Government Bond Fund | 3.73% | 4.07% | 4.22% | 3.72% | 1.84% | 2.10% | 2.09% | 2.48% | 2.49% | 2.14% | 2.28% | 1.69% |
RFBAX Davis Government Bond Fund | 2.77% | 3.01% | 3.23% | 2.15% | 0.80% | 0.57% | 0.93% | 1.67% | 1.17% | 0.59% | 0.68% | 0.75% |
Drawdowns
CPTNX vs. RFBAX - Drawdown Comparison
The maximum CPTNX drawdown since its inception was -19.73%, which is greater than RFBAX's maximum drawdown of -8.03%. Use the drawdown chart below to compare losses from any high point for CPTNX and RFBAX.
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Drawdown Indicators
| CPTNX | RFBAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.73% | -8.03% | -11.70% |
Max Drawdown (1Y)Largest decline over 1 year | -2.95% | -0.77% | -2.18% |
Max Drawdown (5Y)Largest decline over 5 years | -19.15% | -7.61% | -11.54% |
Max Drawdown (10Y)Largest decline over 10 years | -19.73% | -8.03% | -11.70% |
Current DrawdownCurrent decline from peak | -5.51% | -0.58% | -4.93% |
Average DrawdownAverage peak-to-trough decline | -2.28% | -1.19% | -1.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.07% | 0.23% | +0.84% |
Volatility
CPTNX vs. RFBAX - Volatility Comparison
American Century Government Bond Fund (CPTNX) has a higher volatility of 1.62% compared to Davis Government Bond Fund (RFBAX) at 0.48%. This indicates that CPTNX's price experiences larger fluctuations and is considered to be riskier than RFBAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CPTNX | RFBAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.62% | 0.48% | +1.14% |
Volatility (6M)Calculated over the trailing 6-month period | 2.66% | 1.19% | +1.47% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.63% | 1.93% | +2.70% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.24% | 2.06% | +4.18% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.96% | 1.78% | +3.18% |