VSTBX vs. CPUIX
Compare and contrast key facts about Vanguard Short-Term Corporate Bond Index Fund Institutional Shares (VSTBX) and AAM/Insight Select Income Fund (CPUIX).
VSTBX is managed by Vanguard. It was launched on Nov 19, 2009. CPUIX is managed by AAM. It was launched on Apr 19, 2013.
Performance
VSTBX vs. CPUIX - Performance Comparison
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VSTBX vs. CPUIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VSTBX Vanguard Short-Term Corporate Bond Index Fund Institutional Shares | -0.08% | 6.75% | 5.37% | 6.17% | -5.73% | -0.41% | 5.07% | 9.68% | 0.92% | 2.48% |
CPUIX AAM/Insight Select Income Fund | -1.12% | 6.59% | 2.61% | 8.40% | -16.27% | -0.12% | 10.20% | 14.81% | -3.01% | 6.86% |
Returns By Period
In the year-to-date period, VSTBX achieves a -0.08% return, which is significantly higher than CPUIX's -1.12% return. Over the past 10 years, VSTBX has outperformed CPUIX with an annualized return of 3.01%, while CPUIX has yielded a comparatively lower 2.85% annualized return.
VSTBX
- 1D
- 0.19%
- 1M
- -1.05%
- YTD
- -0.08%
- 6M
- 1.15%
- 1Y
- 4.66%
- 3Y*
- 5.46%
- 5Y*
- 2.42%
- 10Y*
- 3.01%
CPUIX
- 1D
- 0.54%
- 1M
- -2.67%
- YTD
- -1.12%
- 6M
- -0.21%
- 1Y
- 4.35%
- 3Y*
- 4.22%
- 5Y*
- 0.43%
- 10Y*
- 2.85%
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VSTBX vs. CPUIX - Expense Ratio Comparison
VSTBX has a 0.05% expense ratio, which is lower than CPUIX's 0.57% expense ratio.
Return for Risk
VSTBX vs. CPUIX — Risk / Return Rank
VSTBX
CPUIX
VSTBX vs. CPUIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Corporate Bond Index Fund Institutional Shares (VSTBX) and AAM/Insight Select Income Fund (CPUIX). 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.
| VSTBX | CPUIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 2.41 | 0.93 | +1.48 |
Sortino ratioReturn per unit of downside risk | 3.58 | 1.32 | +2.26 |
Omega ratioGain probability vs. loss probability | 1.49 | 1.17 | +0.33 |
Calmar ratioReturn relative to maximum drawdown | 3.75 | 1.29 | +2.45 |
Martin ratioReturn relative to average drawdown | 14.83 | 4.28 | +10.55 |
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
| VSTBX | CPUIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.41 | 0.93 | +1.48 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.90 | 0.07 | +0.83 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 1.27 | 0.52 | +0.75 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.46 | 0.63 | +0.83 |
Correlation
The correlation between VSTBX and CPUIX is 0.76, 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
VSTBX vs. CPUIX - Dividend Comparison
VSTBX's dividend yield for the trailing twelve months is around 4.04%, less than CPUIX's 4.78% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VSTBX Vanguard Short-Term Corporate Bond Index Fund Institutional Shares | 4.04% | 4.34% | 4.29% | 3.09% | 2.00% | 1.80% | 2.27% | 5.40% | 2.67% | 2.27% | 1.96% | 2.25% |
CPUIX AAM/Insight Select Income Fund | 4.78% | 3.53% | 3.81% | 3.61% | 3.98% | 3.15% | 3.83% | 3.19% | 3.80% | 3.12% | 3.21% | 3.29% |
Drawdowns
VSTBX vs. CPUIX - Drawdown Comparison
The maximum VSTBX drawdown since its inception was -9.34%, smaller than the maximum CPUIX drawdown of -22.37%. Use the drawdown chart below to compare losses from any high point for VSTBX and CPUIX.
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Drawdown Indicators
| VSTBX | CPUIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -9.34% | -22.37% | +13.03% |
Max Drawdown (1Y)Largest decline over 1 year | -1.31% | -3.37% | +2.06% |
Max Drawdown (5Y)Largest decline over 5 years | -9.34% | -22.37% | +13.03% |
Max Drawdown (10Y)Largest decline over 10 years | -9.34% | -22.37% | +13.03% |
Current DrawdownCurrent decline from peak | -1.05% | -3.31% | +2.26% |
Average DrawdownAverage peak-to-trough decline | -0.96% | -4.50% | +3.54% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.33% | 1.02% | -0.69% |
Volatility
VSTBX vs. CPUIX - Volatility Comparison
The current volatility for Vanguard Short-Term Corporate Bond Index Fund Institutional Shares (VSTBX) is 0.76%, while AAM/Insight Select Income Fund (CPUIX) has a volatility of 1.79%. This indicates that VSTBX experiences smaller price fluctuations and is considered to be less risky than CPUIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VSTBX | CPUIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.76% | 1.79% | -1.03% |
Volatility (6M)Calculated over the trailing 6-month period | 1.16% | 2.73% | -1.57% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.98% | 4.71% | -2.73% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.70% | 5.96% | -3.26% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.37% | 5.50% | -3.13% |