IBII vs. RBIL

Last updated Jun 23, 2026

IBII (iShares iBonds Oct 2032 Term TIPS ETF) and RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) are both Inflation-Protected Bonds funds - IBII tracks the ICE 2032 Maturity US Inflation-Linked Treasury Index while RBIL tracks the Bloomberg US Ultrashort TIPS 1-13 Months Index. Both are passively managed. Over the past year, IBII returned 3.96% vs 3.95% for RBIL. At a 0.10 correlation, their price movements are largely independent. IBII charges 0.10%/yr vs 0.17%/yr for RBIL.

Performance

IBII vs. RBIL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Oct 2032 Term TIPS ETF (IBII) and F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IBII achieves a 0.67% return, which is significantly lower than RBIL's 2.31% return.

IBII

• 1D: -0.40%
• 1M: -0.44%
• YTD: 0.67%
• 6M: 0.73%
• 1Y: 3.96%
• 3Y*: —
• 5Y*: —
• 10Y*: —

RBIL

• 1D: -0.05%
• 1M: -0.20%
• YTD: 2.31%
• 6M: 2.35%
• 1Y: 3.95%
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

IBII vs. RBIL - Yearly Performance Comparison

	2026 (YTD)	2025
IBII iShares iBonds Oct 2032 Term TIPS ETF	0.67%	5.90%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	2.31%	2.85%

Correlation

The correlation between IBII and RBIL 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 (All Time) Calculated using the full available price history since Feb 25, 2025	0.10

Return for Risk

IBII vs. RBIL — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

IBII

IBII Risk / Return Rank: 36
IBII Sharpe Ratio Rank: 33
IBII Sortino Ratio Rank: 33
IBII Omega Ratio Rank: 31
IBII Calmar Ratio Rank: 42
IBII Martin Ratio Rank: 41

RBIL

RBIL Risk / Return Rank: 97
RBIL Sharpe Ratio Rank: 97
RBIL Sortino Ratio Rank: 97
RBIL Omega Ratio Rank: 98
RBIL Calmar Ratio Rank: 95
RBIL Martin Ratio Rank: 97

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

IBII vs. RBIL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Oct 2032 Term TIPS ETF (IBII) and F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL). 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.

	IBII	RBIL	Difference
Sharpe ratio: Return per unit of total volatility	1.14	4.18	-3.04
Sortino ratio: Return per unit of downside risk	1.69	6.39	-4.69
Omega ratio: Gain probability vs. loss probability	1.21	2.06	-0.86
Calmar ratio: Return relative to maximum drawdown	2.00	7.59	-5.58
Martin ratio: Return relative to average drawdown	6.47	44.07	-37.61

IBII vs. RBIL - Sharpe Ratio Comparison

The current IBII Sharpe Ratio is 1.14, which is lower than the RBIL Sharpe Ratio of 4.18. The chart below compares the historical Sharpe Ratios of IBII and RBIL, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

IBII vs. RBIL - Drawdown Comparison

The maximum IBII drawdown since its inception was -4.65%, which is greater than RBIL's maximum drawdown of -0.52%. Use the drawdown chart below to compare losses from any high point for IBII and RBIL.

Drawdown Indicators

	IBII	RBIL	Difference
Max Drawdown Largest peak-to-trough decline	-4.65%	-0.52%	-4.13%
Max Drawdown (1Y) Largest decline over 1 year	-1.98%	-0.52%	-1.46%
Current Drawdown Current decline from peak	-1.58%	-0.51%	-1.07%
Average Drawdown Average peak-to-trough decline	-1.12%	-0.07%	-1.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.61%	0.09%	+0.52%

Volatility

IBII vs. RBIL - Volatility Comparison

iShares iBonds Oct 2032 Term TIPS ETF (IBII) has a higher volatility of 1.36% compared to F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) at 0.36%. This indicates that IBII's price experiences larger fluctuations and is considered to be riskier than RBIL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IBII	RBIL	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.36%	0.36%	+1.00%
Volatility (6M) Calculated over the trailing 6-month period	2.54%	0.85%	+1.69%
Volatility (1Y) Calculated over the trailing 1-year period	3.48%	0.95%	+2.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.42%	1.07%	+4.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.42%	1.07%	+4.35%

IBII vs. RBIL - Expense Ratio Comparison

IBII has a 0.10% expense ratio, which is lower than RBIL's 0.17% 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

IBII vs. RBIL - Dividend Comparison

IBII's dividend yield for the trailing twelve months is around 4.09%, less than RBIL's 4.38% yield.

Position	TTM	2025	2024	2023
IBII iShares iBonds Oct 2032 Term TIPS ETF	4.09%	4.80%	4.76%	1.10%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	4.38%	3.65%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IBII and RBIL in my portfolio?

IBII and RBIL 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.

Which is riskier, IBII or RBIL?

IBII has higher volatility (1.36%) compared to RBIL (0.36%). In terms of maximum drawdown, IBII dropped -4.65% vs RBIL's -0.52%.

Which ETF is better, IBII or RBIL?

On 1-year performance, IBII leads with 3.96% vs 3.95% for RBIL. On fees, IBII is cheaper at 0.10% per year. On volatility, RBIL has been the lower-risk option at 0.36%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IBII or RBIL?

Over the 1-year period, IBII has performed better with a 3.96% return vs 3.95%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IBII or RBIL?

IBII is cheaper with a 0.10% expense ratio, compared with 0.17% for RBIL.

Which ETF pays a higher dividend yield, IBII or RBIL?

RBIL has the higher dividend yield at 4.38%, compared with 4.09% for IBII.

What is the main difference between IBII and RBIL?

IBII tracks ICE 2032 Maturity US Inflation-Linked Treasury Index, while RBIL tracks Bloomberg US Ultrashort TIPS 1-13 Months Index. They also come from different issuers: iShares and F/m. Their fees differ too: 0.10% for IBII and 0.17% for RBIL.

Which has better risk-adjusted returns?

RBIL currently has the higher Sharpe Ratio (4.18 vs 1.14), 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.