LIBD vs. CPII

Last updated Aug 1, 2026

LIBD (LifeX 2065 Inflation-Protected Longevity Income ETF) and CPII (American Beacon Ionic Inflation Protection ETF) are both Inflation-Protected Bonds funds. Both are actively managed. Over the past year, LIBD returned -2.03% vs 2.81% for CPII. Their -0.28 correlation means they have often moved in opposite directions in the past. LIBD charges 0.25%/yr vs 0.74%/yr for CPII.

Performance

LIBD vs. CPII - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in LifeX 2065 Inflation-Protected Longevity Income ETF (LIBD) and American Beacon Ionic Inflation Protection ETF (CPII). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LIBD achieves a -2.94% return, which is significantly lower than CPII's 2.87% return.

LIBD

• 1D: -0.53%
• 1M: -3.26%
• 6M: -2.95%
• YTD: -2.94%
• 1Y: -2.03%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: -2.29%

CPII

• 1D: -0.16%
• 1M: -0.11%
• 6M: 1.90%
• YTD: 2.87%
• 1Y: 2.81%
• 3Y*: 4.03%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 3.54%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CPII American Beacon Ionic Inflation Protection ETF	$7.03K	$4.83K	$26.18K
LIBD LifeX 2065 Inflation-Protected Longevity Income ETF	$6.78K	$11.16K	$6.65K

LIBD vs. CPII - Yearly Performance Comparison

	2026 (YTD)	2025
LIBD LifeX 2065 Inflation-Protected Longevity Income ETF	-2.94%	-0.63%
CPII American Beacon Ionic Inflation Protection ETF	2.87%	2.60%

Correlation

The correlation between LIBD and CPII is -0.21, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	-0.21
Correlation (All Time) Calculated using the full available price history since Jan 6, 2025	-0.28

Return for Risk

LIBD vs. CPII — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

LIBD

LIBD Risk / Return Rank: 8
LIBD Sharpe Ratio Rank: 9
LIBD Sortino Ratio Rank: 8
LIBD Omega Ratio Rank: 8
LIBD Calmar Ratio Rank: 8
LIBD Martin Ratio Rank: 8

CPII

CPII Risk / Return Rank: 36
CPII Sharpe Ratio Rank: 36
CPII Sortino Ratio Rank: 34
CPII Omega Ratio Rank: 35
CPII Calmar Ratio Rank: 39
CPII Martin Ratio Rank: 34

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

LIBD vs. CPII - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for LifeX 2065 Inflation-Protected Longevity Income ETF (LIBD) and American Beacon Ionic Inflation Protection ETF (CPII). 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.

	LIBD	CPII	Difference
Sharpe ratio: Return per unit of total volatility	-0.16	0.89	-1.05
Sortino ratio: Return per unit of downside risk	-0.17	1.29	-1.47
Omega ratio: Gain probability vs. loss probability	0.98	1.17	-0.19
Calmar ratio: Return relative to maximum drawdown	-0.18	1.38	-1.56
Martin ratio: Return relative to average drawdown	-0.38	3.32	-3.70

LIBD vs. CPII - Sharpe Ratio Comparison

The current LIBD Sharpe Ratio is -0.16, which is lower than the CPII Sharpe Ratio of 0.89. The chart below compares the historical Sharpe Ratios of LIBD and CPII, 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

LIBD vs. CPII - Drawdown Comparison

The maximum LIBD drawdown since its inception was -7.31%, which is greater than CPII's maximum drawdown of -6.40%. Use the drawdown chart below to compare losses from any high point for LIBD and CPII.

Drawdown Indicators

	LIBD	CPII	Difference
Max Drawdown Largest peak-to-trough decline	-7.31%	-6.40%	-0.91%
Max Drawdown (1Y) Largest decline over 1 year	-6.96%	-2.13%	-4.83%
Max Drawdown (3Y) Largest decline over 3 years	—	-4.39%	—
Current Drawdown Current decline from peak	-6.96%	-1.74%	-5.22%
Average Drawdown Average peak-to-trough decline	-3.46%	-1.61%	-1.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.40%	0.88%	+2.52%

Volatility

LIBD vs. CPII - Volatility Comparison

LifeX 2065 Inflation-Protected Longevity Income ETF (LIBD) has a higher volatility of 1.81% compared to American Beacon Ionic Inflation Protection ETF (CPII) at 0.95%. This indicates that LIBD's price experiences larger fluctuations and is considered to be riskier than CPII based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LIBD	CPII	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.81%	0.95%	+0.86%
Volatility (6M) Calculated over the trailing 6-month period	5.85%	2.95%	+2.90%
Volatility (1Y) Calculated over the trailing 1-year period	7.85%	3.34%	+4.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.94%	5.84%	+4.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.94%	5.84%	+4.10%

LIBD vs. CPII - Expense Ratio Comparison

LIBD has a 0.25% expense ratio, which is lower than CPII's 0.74% expense ratio.

Dividends

LIBD vs. CPII - Dividend Comparison

LIBD's dividend yield for the trailing twelve months is around 11.89%, more than CPII's 4.65% yield.

Position	TTM	2025	2024	2023	2022
CPII American Beacon Ionic Inflation Protection ETF	4.65%	4.20%	5.47%	5.86%	2.21%
LIBD LifeX 2065 Inflation-Protected Longevity Income ETF	11.89%	13.52%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both LIBD and CPII in my portfolio?

LIBD and CPII have a correlation of -0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LIBD or CPII?

LIBD has higher volatility (1.81%) compared to CPII (0.95%). In terms of maximum drawdown, LIBD dropped -7.31% vs CPII's -6.40%.

Which ETF is better, LIBD or CPII?

On 1-year performance, CPII leads with 2.81% vs -2.03% for LIBD. On fees, LIBD is cheaper at 0.25% per year. On volatility, CPII has been the lower-risk option at 0.95%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, LIBD or CPII?

Over the 1-year period, CPII has performed better with a 2.81% return vs -2.03%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, LIBD or CPII?

LIBD is cheaper with a 0.25% expense ratio, compared with 0.74% for CPII.

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

LIBD has the higher dividend yield at 11.89%, compared with 4.65% for CPII.

What is the main difference between LIBD and CPII?

They also come from different issuers: Stone Ridge and American Beacon. Their fees differ too: 0.25% for LIBD and 0.74% for CPII.

Which has better risk-adjusted returns?

CPII currently has the higher Sharpe Ratio (0.89 vs -0.16), 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.