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 -4.40%/yr vs 2.42%/yr for TFLO. Their -0.01 correlation means they have often moved in opposite directions in the past. 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 -5.76% return, which is significantly lower than TFLO's 2.24% return. Over the past 10 years, EDV has underperformed TFLO with an annualized return of -4.40%, while TFLO has yielded a comparatively higher 2.42% annualized return.
EDV
- 1D
- 0.47%
- 1M
- -5.91%
- 6M
- -5.09%
- YTD
- -5.76%
- 1Y
- -5.56%
- 3Y*
- -4.58%
- 5Y*
- -12.82%
- 10Y*
- -4.40%
- ALL TIME*
- 2.37%
TFLO
- 1D
- 0.02%
- 1M
- 0.30%
- 6M
- 1.90%
- YTD
- 2.24%
- 1Y
- 3.90%
- 3Y*
- 4.63%
- 5Y*
- 3.77%
- 10Y*
- 2.42%
- ALL TIME*
- 1.96%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $91.73M | $72.86M | $67.75M | |
| $86.01M | $74.39M | $76.29M |
EDV vs. TFLO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
EDV Vanguard Extended Duration Treasury ETF | -5.76% | 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 | 2.24% | 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 -0.07, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | -0.07 |
Correlation (3Y) Balances recent behavior with more history. | -0.04 |
Correlation (5Y) Shows whether the relationship held over a longer period. | -0.01 |
Correlation (10Y) Provides a long-term view across more market conditions. | -0.01 |
Correlation (All Time) Calculated using the full available price history since Feb 4, 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.
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.
| EDV | TFLO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -14.12 | ||
| Sortino ratioReturn per unit of downside risk | -47.46 | ||
| Omega ratioGain probability vs. loss probability | 0.95 | 12.25 | -11.30 |
| Calmar ratioReturn relative to maximum drawdown | -0.42 | 197.78 | -198.20 |
| Martin ratioReturn relative to average drawdown | -0.87 | 760.24 | -761.11 |
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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 | -13.24% | -0.02% | -13.22% |
Max Drawdown (3Y)Largest decline over 3 years | -22.74% | -0.04% | -22.70% |
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 | -56.76% | 0.00% | -56.76% |
Average DrawdownAverage peak-to-trough decline | -23.70% | -0.10% | -23.60% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.39% | 0.01% | +6.38% |
Volatility
EDV vs. TFLO - Volatility Comparison
Vanguard Extended Duration Treasury ETF (EDV) has a higher volatility of 3.91% 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 | 3.91% | 0.07% | +3.84% |
Volatility (6M)Calculated over the trailing 6-month period | 10.21% | 0.19% | +10.02% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.01% | 0.29% | +13.72% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.52% | 0.35% | +21.17% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.74% | 0.45% | +19.29% |
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 5.42%, more than TFLO's 3.79% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EDV Vanguard Extended Duration Treasury ETF | 5.42% | 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 | 3.79% | 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 -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
EDV has higher volatility (3.91%) 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 2.42% vs -4.40% 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 2.42% return vs -4.40%. 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 5.42%, compared with 3.79% 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 (13.72 vs -0.40), 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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