CPPAX vs. VBISX
Compare and contrast key facts about American Funds Preservation Portfolio (CPPAX) and Vanguard Short-Term Bond Index Fund (VBISX).
CPPAX is managed by American Funds. It was launched on May 18, 2012. VBISX is managed by Vanguard. It was launched on Mar 1, 1994.
Performance
CPPAX vs. VBISX - Performance Comparison
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CPPAX vs. VBISX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CPPAX American Funds Preservation Portfolio | -0.39% | 5.51% | 3.66% | 4.09% | -6.14% | -0.62% | 5.84% | 3.92% | 0.89% | 0.96% |
VBISX Vanguard Short-Term Bond Index Fund | -0.34% | 5.67% | 3.66% | 4.54% | -5.61% | -1.35% | 4.63% | 4.78% | 1.27% | 1.10% |
Returns By Period
In the year-to-date period, CPPAX achieves a -0.39% return, which is significantly lower than VBISX's -0.34% return. Both investments have delivered pretty close results over the past 10 years, with CPPAX having a 1.68% annualized return and VBISX not far ahead at 1.76%.
CPPAX
- 1D
- 0.32%
- 1M
- -1.25%
- YTD
- -0.39%
- 6M
- 0.66%
- 1Y
- 3.34%
- 3Y*
- 3.63%
- 5Y*
- 1.31%
- 10Y*
- 1.68%
VBISX
- 1D
- 0.20%
- 1M
- -1.25%
- YTD
- -0.34%
- 6M
- 0.83%
- 1Y
- 3.56%
- 3Y*
- 3.85%
- 5Y*
- 1.39%
- 10Y*
- 1.76%
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CPPAX vs. VBISX - Expense Ratio Comparison
CPPAX has a 0.61% expense ratio, which is higher than VBISX's 0.15% expense ratio.
Return for Risk
CPPAX vs. VBISX — Risk / Return Rank
CPPAX
VBISX
CPPAX vs. VBISX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Funds Preservation Portfolio (CPPAX) and Vanguard Short-Term Bond Index Fund (VBISX). 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.
| CPPAX | VBISX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.51 | 1.64 | -0.13 |
Sortino ratioReturn per unit of downside risk | 2.27 | 2.70 | -0.42 |
Omega ratioGain probability vs. loss probability | 1.32 | 1.33 | -0.01 |
Calmar ratioReturn relative to maximum drawdown | 2.26 | 2.72 | -0.45 |
Martin ratioReturn relative to average drawdown | 10.17 | 9.96 | +0.21 |
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
| CPPAX | VBISX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.51 | 1.64 | -0.13 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.43 | 0.48 | -0.05 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.68 | 0.74 | -0.06 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.65 | 1.34 | -0.69 |
Correlation
The correlation between CPPAX and VBISX is 0.78, 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
CPPAX vs. VBISX - Dividend Comparison
CPPAX's dividend yield for the trailing twelve months is around 3.53%, which matches VBISX's 3.52% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CPPAX American Funds Preservation Portfolio | 3.53% | 3.56% | 4.03% | 3.24% | 2.02% | 0.95% | 2.32% | 1.91% | 1.59% | 1.06% | 1.26% | 1.11% |
VBISX Vanguard Short-Term Bond Index Fund | 3.52% | 3.44% | 3.29% | 2.10% | 1.38% | 1.16% | 1.72% | 2.16% | 1.92% | 1.58% | 1.42% | 1.34% |
Drawdowns
CPPAX vs. VBISX - Drawdown Comparison
The maximum CPPAX drawdown since its inception was -8.59%, roughly equal to the maximum VBISX drawdown of -8.79%. Use the drawdown chart below to compare losses from any high point for CPPAX and VBISX.
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Drawdown Indicators
| CPPAX | VBISX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -8.59% | -8.79% | +0.20% |
Max Drawdown (1Y)Largest decline over 1 year | -1.67% | -1.54% | -0.13% |
Max Drawdown (5Y)Largest decline over 5 years | -8.57% | -8.72% | +0.15% |
Max Drawdown (10Y)Largest decline over 10 years | -8.59% | -8.79% | +0.20% |
Current DrawdownCurrent decline from peak | -1.25% | -1.25% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -1.31% | -0.87% | -0.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.37% | 0.42% | -0.05% |
Volatility
CPPAX vs. VBISX - Volatility Comparison
American Funds Preservation Portfolio (CPPAX) has a higher volatility of 0.94% compared to Vanguard Short-Term Bond Index Fund (VBISX) at 0.74%. This indicates that CPPAX's price experiences larger fluctuations and is considered to be riskier than VBISX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CPPAX | VBISX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.94% | 0.74% | +0.20% |
Volatility (6M)Calculated over the trailing 6-month period | 1.36% | 1.50% | -0.14% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.31% | 2.44% | -0.13% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.04% | 2.91% | +0.13% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.48% | 2.37% | +0.11% |