VEDTX vs. VBTLX
VEDTX (Vanguard Extended Duration Treasury Index Fund) and VBTLX (Vanguard Total Bond Market Index Fund Admiral Shares) are both mutual funds - VEDTX is a Government Bonds fund managed by Vanguard, while VBTLX is a Total Bond Market fund tracking the Bloomberg U.S. Aggregate Float Adjusted Index. Over the past 10 years, VEDTX returned -4.58%/yr vs 1.30%/yr for VBTLX. Their correlation of 0.85 means they have usually moved in the same direction. VEDTX charges 0.06%/yr vs 0.04%/yr for VBTLX.
Performance
VEDTX vs. VBTLX - Performance Comparison
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Returns By Period
In the year-to-date period, VEDTX achieves a -5.74% return, which is significantly lower than VBTLX's -0.70% return. Over the past 10 years, VEDTX has underperformed VBTLX with an annualized return of -4.58%, while VBTLX has yielded a comparatively higher 1.30% annualized return.
VEDTX
- 1D
- -0.28%
- 1M
- -5.85%
- 6M
- -5.11%
- YTD
- -5.74%
- 1Y
- -5.04%
- 3Y*
- -6.09%
- 5Y*
- -12.52%
- 10Y*
- -4.58%
- ALL TIME*
- 2.10%
VBTLX
- 1D
- 0.00%
- 1M
- -1.25%
- 6M
- -0.93%
- YTD
- -0.70%
- 1Y
- 1.67%
- 3Y*
- 3.69%
- 5Y*
- -0.45%
- 10Y*
- 1.30%
- ALL TIME*
- 3.34%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
VEDTX vs. VBTLX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VEDTX Vanguard Extended Duration Treasury Index Fund | -5.74% | 1.34% | -13.35% | 2.15% | -39.40% | -6.52% | 24.20% | 19.16% | -3.50% | 12.69% |
VBTLX Vanguard Total Bond Market Index Fund Admiral Shares | -0.70% | 7.17% | 1.26% | 5.74% | -13.16% | -1.81% | 7.72% | 8.73% | -0.25% | 3.56% |
Correlation
The correlation between VEDTX and VBTLX is 0.80, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.80 |
Correlation (3Y) Balances recent behavior with more history. | 0.87 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.88 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.87 |
Correlation (All Time) Calculated using the full available price history since Nov 20, 2007 | 0.85 |
The correlation between VEDTX and VBTLX has been stable across timeframes, ranging from 0.80 to 0.88 - a consistent structural relationship.
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Return for Risk
VEDTX vs. VBTLX — Risk / Return Rank
VEDTX
VBTLX
VEDTX vs. VBTLX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Extended Duration Treasury Index Fund (VEDTX) and Vanguard Total Bond Market Index Fund Admiral Shares (VBTLX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| VEDTX | VBTLX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.98 | ||
| Sortino ratioReturn per unit of downside risk | -1.34 | ||
| Omega ratioGain probability vs. loss probability | 0.97 | 1.13 | -0.16 |
| Calmar ratioReturn relative to maximum drawdown | -0.27 | 0.99 | -1.26 |
| Martin ratioReturn relative to average drawdown | -0.53 | 2.48 | -3.01 |
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Drawdowns
VEDTX vs. VBTLX - Drawdown Comparison
The maximum VEDTX drawdown since its inception was -60.00%, which is greater than VBTLX's maximum drawdown of -18.81%. Use the drawdown chart below to compare losses from any high point for VEDTX and VBTLX.
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Drawdown Indicators
| VEDTX | VBTLX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -60.00% | -18.81% | -41.19% |
Max Drawdown (1Y)Largest decline over 1 year | -12.41% | -2.89% | -9.52% |
Max Drawdown (3Y)Largest decline over 3 years | -22.83% | -4.86% | -17.97% |
Max Drawdown (5Y)Largest decline over 5 years | -55.15% | -18.14% | -37.01% |
Max Drawdown (10Y)Largest decline over 10 years | -60.00% | -18.81% | -41.19% |
Current DrawdownCurrent decline from peak | -56.66% | -3.27% | -53.39% |
Average DrawdownAverage peak-to-trough decline | -23.75% | -2.67% | -21.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.18% | 1.15% | +5.03% |
Volatility
VEDTX vs. VBTLX - Volatility Comparison
Vanguard Extended Duration Treasury Index Fund (VEDTX) has a higher volatility of 4.08% compared to Vanguard Total Bond Market Index Fund Admiral Shares (VBTLX) at 0.96%. This indicates that VEDTX's price experiences larger fluctuations and is considered to be riskier than VBTLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VEDTX | VBTLX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.08% | 0.96% | +3.12% |
Volatility (6M)Calculated over the trailing 6-month period | 10.29% | 2.97% | +7.32% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.18% | 3.82% | +10.36% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.78% | 6.01% | +15.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.04% | 4.98% | +15.06% |
VEDTX vs. VBTLX - Expense Ratio Comparison
VEDTX has a 0.06% expense ratio, which is higher than VBTLX's 0.04% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
VEDTX vs. VBTLX - Dividend Comparison
VEDTX's dividend yield for the trailing twelve months is around 5.42%, more than VBTLX's 3.72% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VBTLX Vanguard Total Bond Market Index Fund Admiral Shares | 3.72% | 3.87% | 3.69% | 3.10% | 2.59% | 1.96% | 2.39% | 2.74% | 2.57% | 2.56% | 2.53% | 2.82% |
VEDTX Vanguard Extended Duration Treasury Index Fund | 5.42% | 4.94% | 4.68% | 3.55% | 3.30% | 1.96% | 5.56% | 3.53% | 2.94% | 2.23% | 5.34% | 4.28% |
Frequently Asked Questions
VEDTX and VBTLX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VEDTX has higher volatility (4.08%) compared to VBTLX (0.96%). In terms of maximum drawdown, VEDTX dropped -60.00% vs VBTLX's -18.81%.
VBTLX currently has the higher Sharpe Ratio (0.75 vs -0.23), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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