USFR vs. SUB
USFR (WisdomTree Floating Rate Treasury Fund) and SUB (iShares Short-Term National Muni Bond ETF) are both exchange-traded funds - USFR is a Government Bonds fund tracking the Bloomberg U.S. Treasury Floating Rate Bond Index, while SUB is a Municipal Bonds fund tracking the ICE Short Maturity AMT-Free US National Municipal Index. Both are passively managed. Over the past 10 years, USFR returned 2.49%/yr vs 1.46%/yr for SUB. At a 0.02 correlation, their price movements are largely independent. USFR charges 0.15%/yr vs 0.07%/yr for SUB.
Performance
USFR vs. SUB - Performance Comparison
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Returns By Period
In the year-to-date period, USFR achieves a 2.01% return, which is significantly higher than SUB's 0.92% return. Over the past 10 years, USFR has outperformed SUB with an annualized return of 2.49%, while SUB has yielded a comparatively lower 1.46% annualized return.
USFR
- 1D
- 0.02%
- 1M
- 0.30%
- 6M
- 1.90%
- YTD
- 2.01%
- 1Y
- 3.93%
- 3Y*
- 4.71%
- 5Y*
- 3.75%
- 10Y*
- 2.49%
SUB
- 1D
- 0.08%
- 1M
- 0.13%
- 6M
- 0.68%
- YTD
- 0.92%
- 1Y
- 2.44%
- 3Y*
- 3.05%
- 5Y*
- 1.46%
- 10Y*
- 1.46%
USFR vs. SUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
USFR WisdomTree Floating Rate Treasury Fund | 2.01% | 4.23% | 5.47% | 5.18% | 1.98% | -0.03% | 0.56% | 2.02% | 2.01% | 1.03% |
SUB iShares Short-Term National Muni Bond ETF | 0.92% | 3.64% | 2.17% | 2.91% | -2.05% | 0.03% | 2.51% | 2.93% | 1.85% | 0.75% |
Correlation
The correlation between USFR and SUB is -0.10, 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 | -0.10 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.02 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.03 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.02 |
Correlation (All Time) Calculated using the full available price history since Feb 4, 2014 | 0.02 |
The correlation between USFR and SUB shifts across timeframes, from -0.10 (1 year) to 0.03 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
USFR vs. SUB — Risk / Return Rank
USFR
SUB
USFR vs. SUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for WisdomTree Floating Rate Treasury Fund (USFR) and iShares Short-Term National Muni Bond ETF (SUB). 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.
| USFR | SUB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +12.45 | ||
| Sortino ratioReturn per unit of downside risk | +48.24 | ||
| Omega ratioGain probability vs. loss probability | 14.08 | 1.50 | +12.59 |
| Calmar ratioReturn relative to maximum drawdown | 200.62 | 3.04 | +197.58 |
| Martin ratioReturn relative to average drawdown | 801.27 | 8.57 | +792.70 |
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Drawdowns
USFR vs. SUB - Drawdown Comparison
The maximum USFR drawdown since its inception was -1.36%, smaller than the maximum SUB drawdown of -9.46%. Use the drawdown chart below to compare losses from any high point for USFR and SUB.
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Drawdown Indicators
| USFR | SUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -1.36% | -9.46% | +8.10% |
Max Drawdown (1Y)Largest decline over 1 year | -0.02% | -0.81% | +0.79% |
Max Drawdown (3Y)Largest decline over 3 years | -0.06% | -1.23% | +1.17% |
Max Drawdown (5Y)Largest decline over 5 years | -0.18% | -4.35% | +4.17% |
Max Drawdown (10Y)Largest decline over 10 years | -0.80% | -9.46% | +8.66% |
Current DrawdownCurrent decline from peak | 0.00% | -0.04% | +0.04% |
Average DrawdownAverage peak-to-trough decline | -0.15% | -0.91% | +0.76% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.00% | 0.29% | -0.29% |
Volatility
USFR vs. SUB - Volatility Comparison
The current volatility for WisdomTree Floating Rate Treasury Fund (USFR) is 0.07%, while iShares Short-Term National Muni Bond ETF (SUB) has a volatility of 0.30%. This indicates that USFR experiences smaller price fluctuations and is considered to be less risky than SUB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| USFR | SUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.07% | 0.30% | -0.23% |
Volatility (6M)Calculated over the trailing 6-month period | 0.19% | 0.82% | -0.63% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.27% | 1.03% | -0.76% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.39% | 1.64% | -1.25% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.77% | 2.59% | -1.82% |
USFR vs. SUB - Expense Ratio Comparison
USFR has a 0.15% expense ratio, which is higher than SUB's 0.07% 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
USFR vs. SUB - Dividend Comparison
USFR's dividend yield for the trailing twelve months is around 3.84%, more than SUB's 2.54% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SUB iShares Short-Term National Muni Bond ETF | 2.54% | 2.42% | 2.10% | 1.73% | 0.86% | 0.72% | 1.23% | 1.58% | 1.32% | 0.95% | 0.75% | 0.77% |
USFR WisdomTree Floating Rate Treasury Fund | 3.84% | 4.15% | 5.17% | 5.12% | 1.78% | 0.01% | 0.40% | 2.08% | 1.67% | 1.03% | 0.29% | 0.00% |
Frequently Asked Questions
USFR and SUB have a correlation of -0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SUB has higher volatility (0.30%) compared to USFR (0.07%). In terms of maximum drawdown, USFR dropped -1.36% vs SUB's -9.46%.
On 10-year performance, USFR leads with 2.49% vs 1.46% for SUB. On fees, SUB is cheaper at 0.07% per year. On volatility, USFR 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, USFR has performed better with a 2.49% return vs 1.46%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SUB is cheaper with a 0.07% expense ratio, compared with 0.15% for USFR.
USFR has the higher dividend yield at 3.84%, compared with 2.54% for SUB.
USFR is categorized as Government Bonds, while SUB is Municipal Bonds. USFR tracks Bloomberg U.S. Treasury Floating Rate Bond Index, while SUB tracks ICE Short Maturity AMT-Free US National Municipal Index. They also come from different issuers: WisdomTree and iShares. Their fees differ too: 0.15% for USFR and 0.07% for SUB.
USFR currently has the higher Sharpe Ratio (14.83 vs 2.39), 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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