CPII vs. RBIL

Last updated Jun 4, 2026

CPII (Ionic Inflation Protection ETF) and RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) are both Inflation-Protected Bonds funds. CPII is actively managed, while RBIL is passively managed. Over the past year, CPII returned 4.42% vs 4.57% for RBIL. At a 0.49 correlation, their price movements are largely independent. CPII charges 0.74%/yr vs 0.17%/yr for RBIL.

Performance

CPII vs. RBIL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Ionic Inflation Protection ETF (CPII) 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, CPII achieves a 4.27% return, which is significantly higher than RBIL's 2.70% return.

CPII

• 1D: 0.13%
• 1M: 0.26%
• YTD: 4.27%
• 6M: 4.13%
• 1Y: 4.42%
• 3Y*: 5.05%
• 5Y*: —
• 10Y*: —

RBIL

• 1D: 0.06%
• 1M: 0.38%
• YTD: 2.70%
• 6M: 2.79%
• 1Y: 4.57%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CPII vs. RBIL - Yearly Performance Comparison

	2026 (YTD)	2025
CPII Ionic Inflation Protection ETF	4.27%	1.70%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	2.70%	2.91%

Correlation

The correlation between CPII and RBIL is 0.56, 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	0.56
Correlation (All Time) Calculated using the full available price history since Feb 26, 2025	0.49

The correlation between CPII and RBIL has been stable across timeframes, ranging from 0.49 to 0.56 - a consistent structural relationship.

Return for Risk

CPII vs. RBIL — Risk / Return Rank

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

CPII

CPII Risk / Return Rank: 41
CPII Sharpe Ratio Rank: 35
CPII Sortino Ratio Rank: 34
CPII Omega Ratio Rank: 38
CPII Calmar Ratio Rank: 56
CPII Martin Ratio Rank: 40

RBIL

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

CPII vs. RBIL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Ionic Inflation Protection ETF (CPII) 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.

	CPII	RBIL	Difference
Sharpe ratio: Return per unit of total volatility	1.28	5.01	-3.73
Sortino ratio: Return per unit of downside risk	1.82	7.92	-6.10
Omega ratio: Gain probability vs. loss probability	1.25	2.39	-1.14
Calmar ratio: Return relative to maximum drawdown	2.73	17.00	-14.27
Martin ratio: Return relative to average drawdown	6.37	70.66	-64.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CPII vs. RBIL - Sharpe Ratio Comparison

The current CPII Sharpe Ratio is 1.28, which is lower than the RBIL Sharpe Ratio of 5.01. The chart below compares the historical Sharpe Ratios of CPII 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.

Sharpe Ratios by Period

	CPII	RBIL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.28	5.01	-3.73
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	4.28	-3.58

Drawdowns

CPII vs. RBIL - Drawdown Comparison

The maximum CPII drawdown since its inception was -6.40%, which is greater than RBIL's maximum drawdown of -0.50%. Use the drawdown chart below to compare losses from any high point for CPII and RBIL.

Drawdown Indicators

	CPII	RBIL	Difference
Max Drawdown Largest peak-to-trough decline	-6.40%	-0.50%	-5.90%
Max Drawdown (1Y) Largest decline over 1 year	-1.62%	-0.27%	-1.35%
Max Drawdown (3Y) Largest decline over 3 years	-4.39%	—	—
Current Drawdown Current decline from peak	-0.40%	0.00%	-0.40%
Average Drawdown Average peak-to-trough decline	-1.62%	-0.06%	-1.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.70%	0.07%	+0.63%

Volatility

CPII vs. RBIL - Volatility Comparison

Ionic Inflation Protection ETF (CPII) has a higher volatility of 1.14% compared to F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) at 0.30%. This indicates that CPII'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

	CPII	RBIL	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.14%	0.30%	+0.84%
Volatility (6M) Calculated over the trailing 6-month period	2.81%	0.79%	+2.02%
Volatility (1Y) Calculated over the trailing 1-year period	3.48%	0.92%	+2.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.93%	1.05%	+4.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.93%	1.05%	+4.88%

CPII vs. RBIL - Expense Ratio Comparison

CPII has a 0.74% expense ratio, which is higher than RBIL's 0.17% expense ratio.

Dividends

CPII vs. RBIL - Dividend Comparison

CPII's dividend yield for the trailing twelve months is around 4.05%, less than RBIL's 4.60% yield.

Position	TTM	2025	2024	2023	2022
CPII Ionic Inflation Protection ETF	4.05%	4.20%	5.47%	5.86%	2.21%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	4.60%	3.65%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both CPII and RBIL in my portfolio?

CPII and RBIL have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CPII or RBIL?

CPII has higher volatility (1.14%) compared to RBIL (0.30%). In terms of maximum drawdown, CPII dropped -6.40% vs RBIL's -0.50%.

Which ETF is better, CPII or RBIL?

On 1-year performance, RBIL leads with 4.57% vs 4.42% for CPII. On fees, RBIL is cheaper at 0.17% per year. On volatility, RBIL has been the lower-risk option at 0.30%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CPII or RBIL?

Over the 1-year period, RBIL has performed better with a 4.57% return vs 4.42%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CPII or RBIL?

RBIL is cheaper with a 0.17% expense ratio, compared with 0.74% for CPII.

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

RBIL has the higher dividend yield at 4.60%, compared with 4.05% for CPII.

What is the main difference between CPII and RBIL?

They also come from different issuers: Ionic and F/m. Their fees differ too: 0.74% for CPII and 0.17% for RBIL.

Which has better risk-adjusted returns?

RBIL currently has the higher Sharpe Ratio (5.01 vs 1.28), 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.