RBIL vs. ZMUN
RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) and ZMUN (F/m Ultrashort Tax-Free Municipal ETF) are both exchange-traded funds - RBIL is a Inflation-Protected Bonds fund tracking the Bloomberg US Ultrashort TIPS 1-13 Months Index, while ZMUN is a Municipal Bonds fund tracking the Bloomberg Municipal Bond Currently Callable Index. Both are passively managed. Their -0.00 correlation means they have often moved in opposite directions in the past. RBIL charges 0.17%/yr vs 0.30%/yr for ZMUN.
Performance
RBIL vs. ZMUN - Performance Comparison
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Returns By Period
In the year-to-date period, RBIL achieves a 2.68% return, which is significantly higher than ZMUN's 2.05% return.
RBIL
- 1D
- -0.02%
- 1M
- 0.24%
- 6M
- 2.36%
- YTD
- 2.68%
- 1Y
- 3.92%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 3.88%
ZMUN
- 1D
- -0.04%
- 1M
- 0.16%
- 6M
- 1.78%
- YTD
- 2.05%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- —
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $1.11M | $1.90M | $2.32M | |
| $248.73K | $278.36K | $387.17K |
RBIL vs. ZMUN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF | 2.68% | 0.55% |
ZMUN F/m Ultrashort Tax-Free Municipal ETF | 2.05% | 0.67% |
Correlation
The correlation between RBIL and ZMUN is -0.00, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Sep 30, 2025 | -0.00 |
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Return for Risk
RBIL vs. ZMUN — Risk / Return Rank
RBIL
ZMUN
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
RBIL vs. ZMUN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) and F/m Ultrashort Tax-Free Municipal ETF (ZMUN). 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.
| RBIL | ZMUN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 2.05 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 7.00 | — | — |
| Martin ratioReturn relative to average drawdown | 28.60 | — | — |
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Drawdowns
RBIL vs. ZMUN - Drawdown Comparison
The maximum RBIL drawdown since its inception was -0.56%, which is greater than ZMUN's maximum drawdown of -0.13%. Use the drawdown chart below to compare losses from any high point for RBIL and ZMUN.
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Drawdown Indicators
| RBIL | ZMUN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.56% | -0.13% | -0.43% |
Max Drawdown (1Y)Largest decline over 1 year | -0.56% | — | — |
Current DrawdownCurrent decline from peak | -0.15% | -0.04% | -0.11% |
Average DrawdownAverage peak-to-trough decline | -0.08% | -0.02% | -0.06% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.14% | — | — |
Volatility
RBIL vs. ZMUN - Volatility Comparison
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Volatility by Period
| RBIL | ZMUN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.30% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 0.90% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 0.96% | 0.54% | +0.42% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.06% | 0.54% | +0.52% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.06% | 0.54% | +0.52% |
RBIL vs. ZMUN - Expense Ratio Comparison
RBIL has a 0.17% expense ratio, which is lower than ZMUN's 0.30% expense ratio.
Dividends
RBIL vs. ZMUN - Dividend Comparison
RBIL's dividend yield for the trailing twelve months is around 4.16%, more than ZMUN's 2.92% yield.
| Position | TTM | 2025 |
|---|---|---|
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF | 4.16% | 3.65% |
ZMUN F/m Ultrashort Tax-Free Municipal ETF | 2.92% | 0.70% |
Frequently Asked Questions
RBIL and ZMUN have a correlation of -0.00, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, RBIL is cheaper at 0.17% per year. The better choice depends on whether you care most about return, fees, risk, or income.
RBIL is cheaper with a 0.17% expense ratio, compared with 0.30% for ZMUN.
RBIL has the higher dividend yield at 4.16%, compared with 2.92% for ZMUN.
RBIL is categorized as Inflation-Protected Bonds, while ZMUN is Municipal Bonds. RBIL tracks Bloomberg US Ultrashort TIPS 1-13 Months Index, while ZMUN tracks Bloomberg Municipal Bond Currently Callable Index. Their fees differ too: 0.17% for RBIL and 0.30% for ZMUN.
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