RBIL vs. IBID
RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) and IBID (iShares iBonds Oct 2027 Term TIPS ETF) are both Inflation-Protected Bonds funds - RBIL tracks the Bloomberg US Ultrashort TIPS 1-13 Months Index while IBID tracks the ICE 2027 Maturity US Inflation-Linked Treasury Index. Both are passively managed. Over the past year, RBIL returned 4.57% vs 4.83% for IBID. A 0.50 correlation means they provide meaningful diversification when combined. RBIL charges 0.17%/yr vs 0.10%/yr for IBID.
Performance
RBIL vs. IBID - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, RBIL achieves a 2.70% return, which is significantly higher than IBID's 2.46% return.
RBIL
- 1D
- 0.06%
- 1M
- 0.38%
- YTD
- 2.70%
- 6M
- 2.79%
- 1Y
- 4.57%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBID
- 1D
- 0.08%
- 1M
- 0.49%
- YTD
- 2.46%
- 6M
- 2.57%
- 1Y
- 4.83%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
RBIL vs. IBID - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF | 2.70% | 2.91% |
IBID iShares iBonds Oct 2027 Term TIPS ETF | 2.46% | 3.96% |
Correlation
The correlation between RBIL and IBID is 0.55, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.55 |
Correlation (All Time) Calculated using the full available price history since Feb 26, 2025 | 0.50 |
The correlation between RBIL and IBID has been stable across timeframes, ranging from 0.50 to 0.55 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
RBIL vs. IBID — Risk / Return Rank
RBIL
IBID
RBIL vs. IBID - 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 iShares iBonds Oct 2027 Term TIPS ETF (IBID). 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.
| RBIL | IBID | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.10 | ||
| Sortino ratioReturn per unit of downside risk | +1.17 | ||
| Omega ratioGain probability vs. loss probability | 2.39 | 1.94 | +0.45 |
| Calmar ratioReturn relative to maximum drawdown | 17.00 | 13.33 | +3.67 |
| Martin ratioReturn relative to average drawdown | 70.66 | 39.52 | +31.14 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| RBIL | IBID | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 5.01 | 3.91 | +1.10 |
Sharpe Ratio (All Time)Calculated using the full available price history | 4.28 | 2.56 | +1.72 |
Drawdowns
RBIL vs. IBID - Drawdown Comparison
The maximum RBIL drawdown since its inception was -0.50%, smaller than the maximum IBID drawdown of -1.28%. Use the drawdown chart below to compare losses from any high point for RBIL and IBID.
Loading charts...
Drawdown Indicators
| RBIL | IBID | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.50% | -1.28% | +0.78% |
Max Drawdown (1Y)Largest decline over 1 year | -0.27% | -0.36% | +0.09% |
Current DrawdownCurrent decline from peak | 0.00% | 0.00% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -0.06% | -0.22% | +0.16% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.07% | 0.12% | -0.05% |
Volatility
RBIL vs. IBID - Volatility Comparison
The current volatility for F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) is 0.30%, while iShares iBonds Oct 2027 Term TIPS ETF (IBID) has a volatility of 0.32%. This indicates that RBIL experiences smaller price fluctuations and is considered to be less risky than IBID based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| RBIL | IBID | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.30% | 0.32% | -0.02% |
Volatility (6M)Calculated over the trailing 6-month period | 0.79% | 0.80% | -0.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.92% | 1.25% | -0.33% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.05% | 2.25% | -1.20% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.05% | 2.25% | -1.20% |
RBIL vs. IBID - Expense Ratio Comparison
RBIL has a 0.17% expense ratio, which is higher than IBID's 0.10% 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
RBIL vs. IBID - Dividend Comparison
RBIL's dividend yield for the trailing twelve months is around 4.60%, more than IBID's 3.66% yield.
| Position | TTM | 2025 | 2024 | 2023 |
|---|---|---|---|---|
IBID iShares iBonds Oct 2027 Term TIPS ETF | 3.66% | 4.43% | 4.24% | 0.81% |
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF | 4.60% | 3.65% | 0.00% | 0.00% |
Frequently Asked Questions
RBIL and IBID have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IBID has higher volatility (0.32%) compared to RBIL (0.30%). In terms of maximum drawdown, RBIL dropped -0.50% vs IBID's -1.28%.
On 1-year performance, IBID leads with 4.83% vs 4.57% for RBIL. On fees, IBID is cheaper at 0.10% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBID has performed better with a 4.83% return vs 4.57%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBID is cheaper with a 0.10% expense ratio, compared with 0.17% for RBIL.
RBIL has the higher dividend yield at 4.60%, compared with 3.66% for IBID.
RBIL tracks Bloomberg US Ultrashort TIPS 1-13 Months Index, while IBID tracks ICE 2027 Maturity US Inflation-Linked Treasury Index. They also come from different issuers: F/m and iShares. Their fees differ too: 0.17% for RBIL and 0.10% for IBID.
RBIL currently has the higher Sharpe Ratio (5.01 vs 3.91), 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.
Find the right allocation for RBIL and IBID
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer