RBIL vs. IBIC

Last updated Jun 27, 2026

RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) and IBIC (iShares iBonds Oct 2026 Term TIPS ETF) are both Inflation-Protected Bonds funds - RBIL tracks the Bloomberg US Ultrashort TIPS 1-13 Months Index while IBIC tracks the ICE 2026 Maturity US Inflation-Linked Treasury Index. Both are passively managed. Over the past year, RBIL returned 4.04% vs 4.34% for IBIC. A 0.57 correlation means they provide meaningful diversification when combined. RBIL charges 0.17%/yr vs 0.10%/yr for IBIC.

Performance

RBIL vs. IBIC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) and iShares iBonds Oct 2026 Term TIPS ETF (IBIC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with RBIL having a 2.30% return and IBIC slightly higher at 2.35%.

RBIL

• 1D: -0.01%
• 1M: -0.14%
• YTD: 2.30%
• 6M: 2.31%
• 1Y: 4.04%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBIC

• 1D: -0.02%
• 1M: 0.06%
• YTD: 2.35%
• 6M: 2.33%
• 1Y: 4.34%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RBIL vs. IBIC - Yearly Performance Comparison

	2026 (YTD)	2025
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	2.30%	2.85%
IBIC iShares iBonds Oct 2026 Term TIPS ETF	2.35%	3.68%

Correlation

The correlation between RBIL and IBIC is 0.61, 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	0.61
Correlation (All Time) Calculated using the full available price history since Feb 25, 2025	0.57

The correlation between RBIL and IBIC has been stable across timeframes, ranging from 0.57 to 0.61 - a consistent structural relationship.

Return for Risk

RBIL vs. IBIC — Risk / Return Rank

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

RBIL

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

IBIC

IBIC Risk / Return Rank: 98
IBIC Sharpe Ratio Rank: 98
IBIC Sortino Ratio Rank: 98
IBIC Omega Ratio Rank: 98
IBIC Calmar Ratio Rank: 99
IBIC Martin Ratio Rank: 98

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.

RBIL vs. IBIC - 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 2026 Term TIPS ETF (IBIC). 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	IBIC	Difference
Sharpe ratio: Return per unit of total volatility	4.33	4.88	-0.55
Sortino ratio: Return per unit of downside risk	6.68	8.75	-2.06
Omega ratio: Gain probability vs. loss probability	2.13	2.19	-0.06
Calmar ratio: Return relative to maximum drawdown	7.21	16.27	-9.05
Martin ratio: Return relative to average drawdown	36.36	56.24	-19.88

RBIL vs. IBIC - Sharpe Ratio Comparison

The current RBIL Sharpe Ratio is 4.33, which is comparable to the IBIC Sharpe Ratio of 4.88. The chart below compares the historical Sharpe Ratios of RBIL and IBIC, 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

RBIL vs. IBIC - Drawdown Comparison

The maximum RBIL drawdown since its inception was -0.56%, smaller than the maximum IBIC drawdown of -0.90%. Use the drawdown chart below to compare losses from any high point for RBIL and IBIC.

Drawdown Indicators

	RBIL	IBIC	Difference
Max Drawdown Largest peak-to-trough decline	-0.56%	-0.90%	+0.34%
Max Drawdown (1Y) Largest decline over 1 year	-0.56%	-0.27%	-0.29%
Current Drawdown Current decline from peak	-0.52%	-0.15%	-0.37%
Average Drawdown Average peak-to-trough decline	-0.07%	-0.10%	+0.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.11%	0.08%	+0.03%

Volatility

RBIL vs. IBIC - Volatility Comparison

F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) has a higher volatility of 0.37% compared to iShares iBonds Oct 2026 Term TIPS ETF (IBIC) at 0.19%. This indicates that RBIL's price experiences larger fluctuations and is considered to be riskier than IBIC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RBIL	IBIC	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.37%	0.19%	+0.18%
Volatility (6M) Calculated over the trailing 6-month period	0.86%	0.67%	+0.19%
Volatility (1Y) Calculated over the trailing 1-year period	0.94%	0.89%	+0.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.06%	1.56%	-0.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.06%	1.56%	-0.50%

RBIL vs. IBIC - Expense Ratio Comparison

RBIL has a 0.17% expense ratio, which is higher than IBIC'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. IBIC - Dividend Comparison

RBIL's dividend yield for the trailing twelve months is around 4.38%, more than IBIC's 3.59% yield.

Position	TTM	2025	2024	2023
IBIC iShares iBonds Oct 2026 Term TIPS ETF	3.59%	4.43%	4.65%	0.83%
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 RBIL and IBIC in my portfolio?

RBIL and IBIC have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RBIL or IBIC?

RBIL has higher volatility (0.37%) compared to IBIC (0.19%). In terms of maximum drawdown, RBIL dropped -0.56% vs IBIC's -0.90%.

Which ETF is better, RBIL or IBIC?

On 1-year performance, IBIC leads with 4.34% vs 4.04% for RBIL. On fees, IBIC is cheaper at 0.10% per year. On volatility, IBIC has been the lower-risk option at 0.19%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RBIL or IBIC?

Over the 1-year period, IBIC has performed better with a 4.34% return vs 4.04%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RBIL or IBIC?

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

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

RBIL has the higher dividend yield at 4.38%, compared with 3.59% for IBIC.

What is the main difference between RBIL and IBIC?

RBIL tracks Bloomberg US Ultrashort TIPS 1-13 Months Index, while IBIC tracks ICE 2026 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 IBIC.

Which has better risk-adjusted returns?

IBIC currently has the higher Sharpe Ratio (4.88 vs 4.33), 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.