EDV vs. TFLO
EDV (Vanguard Extended Duration Treasury ETF) and TFLO (iShares Treasury Floating Rate Bond ETF) are both Government Bonds funds - EDV tracks the Bloomberg U.S. Treasury STRIPS 20-30 Year Equal Par Bond Index while TFLO tracks the Bloomberg U.S. Treasury Floating Rate Index. Both are passively managed. Over the past 10 years, EDV returned -3.32%/yr vs 2.37%/yr for TFLO. At a correlation of -0.01, they often move in opposite directions. EDV charges 0.05%/yr vs 0.15%/yr for TFLO.
Performance
EDV vs. TFLO - Performance Comparison
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Returns By Period
In the year-to-date period, EDV achieves a -0.72% return, which is significantly lower than TFLO's 1.59% return. Over the past 10 years, EDV has underperformed TFLO with an annualized return of -3.32%, while TFLO has yielded a comparatively higher 2.37% annualized return.
EDV
- 1D
- -0.48%
- 1M
- 1.42%
- YTD
- -0.72%
- 6M
- -3.69%
- 1Y
- 4.85%
- 3Y*
- -5.25%
- 5Y*
- -10.02%
- 10Y*
- -3.32%
TFLO
- 1D
- 0.02%
- 1M
- 0.31%
- YTD
- 1.59%
- 6M
- 1.92%
- 1Y
- 3.97%
- 3Y*
- 4.74%
- 5Y*
- 3.63%
- 10Y*
- 2.37%
EDV vs. TFLO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
EDV Vanguard Extended Duration Treasury ETF | -0.72% | 0.65% | -12.78% | 1.65% | -39.15% | -6.19% | 23.59% | 18.67% | -3.40% | 13.94% |
TFLO iShares Treasury Floating Rate Bond ETF | 1.59% | 4.22% | 5.34% | 5.12% | 1.99% | -0.02% | 0.43% | 2.04% | 1.76% | 1.01% |
Correlation
The correlation between EDV and TFLO is -0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.08 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.06 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.02 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.01 |
Correlation (All Time) Calculated using the full available price history since Feb 5, 2014 | -0.01 |
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Return for Risk
EDV vs. TFLO — Risk / Return Rank
EDV
TFLO
EDV vs. TFLO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Extended Duration Treasury ETF (EDV) and iShares Treasury Floating Rate Bond ETF (TFLO). 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.
| EDV | TFLO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -13.76 | ||
| Sortino ratioReturn per unit of downside risk | -50.28 | ||
| Omega ratioGain probability vs. loss probability | 1.06 | 13.94 | -12.88 |
| Calmar ratioReturn relative to maximum drawdown | 0.39 | 201.22 | -200.84 |
| Martin ratioReturn relative to average drawdown | 0.90 | 823.26 | -822.36 |
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
| EDV | TFLO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.33 | 14.09 | -13.76 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.47 | 10.30 | -10.77 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.17 | 5.21 | -5.38 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.12 | 0.99 | -0.86 |
Drawdowns
EDV vs. TFLO - Drawdown Comparison
The maximum EDV drawdown since its inception was -59.96%, which is greater than TFLO's maximum drawdown of -5.01%. Use the drawdown chart below to compare losses from any high point for EDV and TFLO.
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Drawdown Indicators
| EDV | TFLO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.96% | -5.01% | -54.95% |
Max Drawdown (1Y)Largest decline over 1 year | -12.54% | -0.02% | -12.52% |
Max Drawdown (3Y)Largest decline over 3 years | -26.99% | -0.04% | -26.95% |
Max Drawdown (5Y)Largest decline over 5 years | -55.03% | -0.13% | -54.90% |
Max Drawdown (10Y)Largest decline over 10 years | -59.96% | -0.16% | -59.80% |
Current DrawdownCurrent decline from peak | -54.45% | 0.00% | -54.45% |
Average DrawdownAverage peak-to-trough decline | -23.43% | -0.10% | -23.33% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.38% | 0.00% | +5.38% |
Volatility
EDV vs. TFLO - Volatility Comparison
Vanguard Extended Duration Treasury ETF (EDV) has a higher volatility of 4.06% compared to iShares Treasury Floating Rate Bond ETF (TFLO) at 0.07%. This indicates that EDV's price experiences larger fluctuations and is considered to be riskier than TFLO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| EDV | TFLO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.06% | 0.07% | +3.99% |
Volatility (6M)Calculated over the trailing 6-month period | 9.65% | 0.20% | +9.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.64% | 0.28% | +14.36% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.63% | 0.35% | +21.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.81% | 0.46% | +19.35% |
EDV vs. TFLO - Expense Ratio Comparison
EDV has a 0.05% expense ratio, which is lower than TFLO's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
EDV vs. TFLO - Dividend Comparison
EDV's dividend yield for the trailing twelve months is around 4.99%, more than TFLO's 3.90% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EDV Vanguard Extended Duration Treasury ETF | 4.99% | 4.94% | 4.65% | 3.81% | 3.28% | 1.95% | 5.54% | 3.51% | 2.90% | 2.92% | 5.32% | 4.24% |
TFLO iShares Treasury Floating Rate Bond ETF | 3.90% | 4.16% | 5.21% | 4.88% | 1.68% | 0.00% | 0.36% | 2.08% | 1.65% | 0.86% | 0.31% | 0.15% |
Frequently Asked Questions
EDV and TFLO have a correlation of -0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
EDV has higher volatility (4.06%) compared to TFLO (0.07%). In terms of maximum drawdown, EDV dropped -59.96% vs TFLO's -5.01%.
On 10-year performance, TFLO leads with 2.37% vs -3.32% for EDV. On fees, EDV is cheaper at 0.05% per year. On volatility, TFLO has been the lower-risk option at 0.07%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, TFLO has performed better with a 2.37% return vs -3.32%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
EDV is cheaper with a 0.05% expense ratio, compared with 0.15% for TFLO.
EDV has the higher dividend yield at 4.99%, compared with 3.90% for TFLO.
EDV tracks Bloomberg U.S. Treasury STRIPS 20-30 Year Equal Par Bond Index, while TFLO tracks Bloomberg U.S. Treasury Floating Rate Index. They also come from different issuers: Vanguard and iShares. Their fees differ too: 0.05% for EDV and 0.15% for TFLO.
TFLO currently has the higher Sharpe Ratio (14.09 vs 0.33), 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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