VSBSX vs. TWUSX
Compare and contrast key facts about Vanguard Short-Term Treasury Index Fund Admiral Shares (VSBSX) and American Century Short-Term Government Fund (TWUSX).
VSBSX is managed by Vanguard. It was launched on Dec 28, 2009. TWUSX is managed by American Century. It was launched on Dec 14, 1982.
Performance
VSBSX vs. TWUSX - Performance Comparison
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VSBSX vs. TWUSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VSBSX Vanguard Short-Term Treasury Index Fund Admiral Shares | 0.29% | 5.08% | 4.39% | 4.23% | -3.87% | -0.69% | 3.09% | 3.51% | 1.52% | 0.35% |
TWUSX American Century Short-Term Government Fund | 0.02% | 4.94% | 3.59% | 3.70% | -4.31% | -0.09% | 3.36% | 2.91% | 1.12% | 0.22% |
Returns By Period
In the year-to-date period, VSBSX achieves a 0.29% return, which is significantly higher than TWUSX's 0.02% return. Over the past 10 years, VSBSX has outperformed TWUSX with an annualized return of 1.74%, while TWUSX has yielded a comparatively lower 1.48% annualized return.
VSBSX
- 1D
- 0.10%
- 1M
- -0.31%
- YTD
- 0.29%
- 6M
- 1.25%
- 1Y
- 3.68%
- 3Y*
- 4.11%
- 5Y*
- 1.84%
- 10Y*
- 1.74%
TWUSX
- 1D
- 0.11%
- 1M
- -0.54%
- YTD
- 0.02%
- 6M
- 0.92%
- 1Y
- 3.39%
- 3Y*
- 3.54%
- 5Y*
- 1.46%
- 10Y*
- 1.48%
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VSBSX vs. TWUSX - Expense Ratio Comparison
VSBSX has a 0.07% expense ratio, which is lower than TWUSX's 0.55% expense ratio.
Return for Risk
VSBSX vs. TWUSX — Risk / Return Rank
VSBSX
TWUSX
VSBSX vs. TWUSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Treasury Index Fund Admiral Shares (VSBSX) and American Century Short-Term Government Fund (TWUSX). 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.
| VSBSX | TWUSX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 2.60 | 1.84 | +0.76 |
Sortino ratioReturn per unit of downside risk | 4.12 | 3.16 | +0.96 |
Omega ratioGain probability vs. loss probability | 1.56 | 1.40 | +0.16 |
Calmar ratioReturn relative to maximum drawdown | 4.52 | 3.93 | +0.59 |
Martin ratioReturn relative to average drawdown | 17.41 | 12.74 | +4.68 |
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
| VSBSX | TWUSX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.60 | 1.84 | +0.76 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.96 | 0.64 | +0.31 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 1.14 | 0.82 | +0.32 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.07 | -0.00 | +1.07 |
Correlation
The correlation between VSBSX and TWUSX is 0.72, 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
VSBSX vs. TWUSX - Dividend Comparison
VSBSX's dividend yield for the trailing twelve months is around 3.57%, more than TWUSX's 3.34% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VSBSX Vanguard Short-Term Treasury Index Fund Admiral Shares | 3.57% | 3.98% | 4.50% | 3.29% | 1.12% | 0.63% | 1.72% | 2.26% | 1.80% | 1.10% | 0.76% | 0.71% |
TWUSX American Century Short-Term Government Fund | 3.34% | 3.70% | 4.06% | 3.83% | 1.12% | 1.05% | 0.72% | 1.81% | 1.74% | 1.06% | 0.57% | 0.53% |
Drawdowns
VSBSX vs. TWUSX - Drawdown Comparison
The maximum VSBSX drawdown since its inception was -5.77%, smaller than the maximum TWUSX drawdown of -91.08%. Use the drawdown chart below to compare losses from any high point for VSBSX and TWUSX.
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Drawdown Indicators
| VSBSX | TWUSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.77% | -91.08% | +85.31% |
Max Drawdown (1Y)Largest decline over 1 year | -0.84% | -0.98% | +0.14% |
Max Drawdown (5Y)Largest decline over 5 years | -5.77% | -5.85% | +0.08% |
Max Drawdown (10Y)Largest decline over 10 years | -5.77% | -5.85% | +0.08% |
Current DrawdownCurrent decline from peak | -0.43% | -74.71% | +74.28% |
Average DrawdownAverage peak-to-trough decline | -0.59% | -81.79% | +81.20% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.22% | 0.30% | -0.08% |
Volatility
VSBSX vs. TWUSX - Volatility Comparison
Vanguard Short-Term Treasury Index Fund Admiral Shares (VSBSX) and American Century Short-Term Government Fund (TWUSX) have volatilities of 0.53% and 0.52%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VSBSX | TWUSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.53% | 0.52% | +0.01% |
Volatility (6M)Calculated over the trailing 6-month period | 0.84% | 1.12% | -0.28% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.44% | 1.94% | -0.50% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.94% | 2.28% | -0.34% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.53% | 1.80% | -0.27% |