PRGMX vs. VUSTX
Compare and contrast key facts about T. Rowe Price GNMA Fund (PRGMX) and Vanguard Long-Term Treasury Fund Investor Shares (VUSTX).
PRGMX is managed by T. Rowe Price. It was launched on Nov 25, 1985. VUSTX is managed by Vanguard. It was launched on May 19, 1986.
Performance
PRGMX vs. VUSTX - Performance Comparison
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PRGMX vs. VUSTX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PRGMX T. Rowe Price GNMA Fund | 0.87% | 10.46% | 0.92% | 5.62% | -11.45% | -2.18% | 4.21% | 5.18% | 0.58% | 1.23% |
VUSTX Vanguard Long-Term Treasury Fund Investor Shares | -0.56% | 5.55% | -6.41% | 3.33% | -29.58% | -4.93% | 18.20% | 14.14% | -1.89% | 8.60% |
Returns By Period
In the year-to-date period, PRGMX achieves a 0.87% return, which is significantly higher than VUSTX's -0.56% return. Over the past 10 years, PRGMX has outperformed VUSTX with an annualized return of 1.40%, while VUSTX has yielded a comparatively lower -0.93% annualized return.
PRGMX
- 1D
- 0.24%
- 1M
- -1.44%
- YTD
- 0.87%
- 6M
- 2.89%
- 1Y
- 7.97%
- 3Y*
- 4.79%
- 5Y*
- 0.72%
- 10Y*
- 1.40%
VUSTX
- 1D
- 0.00%
- 1M
- -3.43%
- YTD
- -0.56%
- 6M
- -0.98%
- 1Y
- -0.63%
- 3Y*
- -1.62%
- 5Y*
- -4.99%
- 10Y*
- -0.93%
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PRGMX vs. VUSTX - Expense Ratio Comparison
PRGMX has a 0.58% expense ratio, which is higher than VUSTX's 0.20% expense ratio.
Return for Risk
PRGMX vs. VUSTX — Risk / Return Rank
PRGMX
VUSTX
PRGMX vs. VUSTX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price GNMA Fund (PRGMX) and Vanguard Long-Term Treasury Fund Investor Shares (VUSTX). 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.
| PRGMX | VUSTX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.77 | 0.02 | +1.75 |
Sortino ratioReturn per unit of downside risk | 2.53 | 0.10 | +2.44 |
Omega ratioGain probability vs. loss probability | 1.33 | 1.01 | +0.31 |
Calmar ratioReturn relative to maximum drawdown | 3.01 | 0.15 | +2.86 |
Martin ratioReturn relative to average drawdown | 8.77 | 0.33 | +8.44 |
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
| PRGMX | VUSTX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.77 | 0.02 | +1.75 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.11 | -0.34 | +0.46 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.30 | -0.07 | +0.37 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.94 | 0.44 | +0.50 |
Correlation
The correlation between PRGMX and VUSTX is 0.73, 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
PRGMX vs. VUSTX - Dividend Comparison
PRGMX's dividend yield for the trailing twelve months is around 6.90%, more than VUSTX's 4.02% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PRGMX T. Rowe Price GNMA Fund | 6.90% | 6.52% | 3.54% | 3.54% | 1.38% | 0.59% | 1.44% | 2.39% | 2.78% | 2.98% | 2.88% | 3.12% |
VUSTX Vanguard Long-Term Treasury Fund Investor Shares | 4.02% | 4.29% | 4.03% | 3.33% | 2.93% | 4.21% | 10.38% | 2.82% | 2.82% | 2.64% | 5.27% | 5.52% |
Drawdowns
PRGMX vs. VUSTX - Drawdown Comparison
The maximum PRGMX drawdown since its inception was -18.22%, smaller than the maximum VUSTX drawdown of -46.37%. Use the drawdown chart below to compare losses from any high point for PRGMX and VUSTX.
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Drawdown Indicators
| PRGMX | VUSTX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.22% | -46.37% | +28.15% |
Max Drawdown (1Y)Largest decline over 1 year | -2.93% | -8.77% | +5.84% |
Max Drawdown (5Y)Largest decline over 5 years | -17.70% | -41.45% | +23.75% |
Max Drawdown (10Y)Largest decline over 10 years | -18.22% | -46.37% | +28.15% |
Current DrawdownCurrent decline from peak | -1.91% | -36.78% | +34.87% |
Average DrawdownAverage peak-to-trough decline | -2.25% | -9.23% | +6.98% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.00% | 3.95% | -2.95% |
Volatility
PRGMX vs. VUSTX - Volatility Comparison
The current volatility for T. Rowe Price GNMA Fund (PRGMX) is 1.74%, while Vanguard Long-Term Treasury Fund Investor Shares (VUSTX) has a volatility of 3.60%. This indicates that PRGMX experiences smaller price fluctuations and is considered to be less risky than VUSTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PRGMX | VUSTX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.74% | 3.60% | -1.86% |
Volatility (6M)Calculated over the trailing 6-month period | 2.76% | 6.06% | -3.30% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.77% | 10.49% | -5.72% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.33% | 14.64% | -8.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.73% | 13.78% | -9.05% |