LIBD vs. PBTP

Last updated Jun 4, 2026

LIBD (LifeX 2065 Inflation-Protected Longevity Income ETF) and PBTP (Invesco PureBeta 0-5 Yr US TIPS ETF) are both Inflation-Protected Bonds funds. LIBD is actively managed, while PBTP is passively managed. Over the past year, LIBD returned 3.91% vs 4.68% for PBTP. At a 0.45 correlation, their price movements are largely independent. LIBD charges 0.25%/yr vs 0.07%/yr for PBTP.

Performance

LIBD vs. PBTP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in LifeX 2065 Inflation-Protected Longevity Income ETF (LIBD) and Invesco PureBeta 0-5 Yr US TIPS ETF (PBTP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LIBD achieves a 0.48% return, which is significantly lower than PBTP's 2.15% return.

LIBD

• 1D: -0.40%
• 1M: 0.93%
• YTD: 0.48%
• 6M: -1.01%
• 1Y: 3.91%
• 3Y*: —
• 5Y*: —
• 10Y*: —

PBTP

• 1D: -0.02%
• 1M: 0.08%
• YTD: 2.15%
• 6M: 2.14%
• 1Y: 4.68%
• 3Y*: 5.23%
• 5Y*: 3.32%
• 10Y*: —

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

LIBD vs. PBTP - Yearly Performance Comparison

	2026 (YTD)	2025
LIBD LifeX 2065 Inflation-Protected Longevity Income ETF	0.48%	3.37%
PBTP Invesco PureBeta 0-5 Yr US TIPS ETF	2.15%	5.96%

Correlation

The correlation between LIBD and PBTP is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.43
Correlation (All Time) Calculated using the full available price history since Jan 7, 2025	0.45

Return for Risk

LIBD vs. PBTP — Risk / Return Rank

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

LIBD

LIBD Risk / Return Rank: 16
LIBD Sharpe Ratio Rank: 17
LIBD Sortino Ratio Rank: 16
LIBD Omega Ratio Rank: 15
LIBD Calmar Ratio Rank: 17
LIBD Martin Ratio Rank: 16

PBTP

PBTP Risk / Return Rank: 93
PBTP Sharpe Ratio Rank: 89
PBTP Sortino Ratio Rank: 95
PBTP Omega Ratio Rank: 93
PBTP Calmar Ratio Rank: 94
PBTP Martin Ratio Rank: 93

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.

LIBD vs. PBTP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for LifeX 2065 Inflation-Protected Longevity Income ETF (LIBD) and Invesco PureBeta 0-5 Yr US TIPS ETF (PBTP). 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.

	LIBD	PBTP	Difference
Sharpe ratio: Return per unit of total volatility	0.49	3.05	-2.57
Sortino ratio: Return per unit of downside risk	0.75	5.10	-4.35
Omega ratio: Gain probability vs. loss probability	1.08	1.66	-0.57
Calmar ratio: Return relative to maximum drawdown	0.63	7.08	-6.44
Martin ratio: Return relative to average drawdown	1.36	24.51	-23.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LIBD vs. PBTP - Sharpe Ratio Comparison

The current LIBD Sharpe Ratio is 0.49, which is lower than the PBTP Sharpe Ratio of 3.05. The chart below compares the historical Sharpe Ratios of LIBD and PBTP, 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

	LIBD	PBTP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.49	3.05	-2.57
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	1.17	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.29	1.30	-1.02

Drawdowns

LIBD vs. PBTP - Drawdown Comparison

The maximum LIBD drawdown since its inception was -7.31%, which is greater than PBTP's maximum drawdown of -5.44%. Use the drawdown chart below to compare losses from any high point for LIBD and PBTP.

Drawdown Indicators

	LIBD	PBTP	Difference
Max Drawdown Largest peak-to-trough decline	-7.31%	-5.44%	-1.87%
Max Drawdown (1Y) Largest decline over 1 year	-6.19%	-0.66%	-5.53%
Max Drawdown (3Y) Largest decline over 3 years	—	-1.03%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-5.44%	—
Current Drawdown Current decline from peak	-3.69%	-0.02%	-3.67%
Average Drawdown Average peak-to-trough decline	-3.20%	-0.75%	-2.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.89%	0.19%	+2.70%

Volatility

LIBD vs. PBTP - Volatility Comparison

LifeX 2065 Inflation-Protected Longevity Income ETF (LIBD) has a higher volatility of 2.14% compared to Invesco PureBeta 0-5 Yr US TIPS ETF (PBTP) at 0.40%. This indicates that LIBD's price experiences larger fluctuations and is considered to be riskier than PBTP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LIBD	PBTP	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.14%	0.40%	+1.74%
Volatility (6M) Calculated over the trailing 6-month period	5.64%	1.03%	+4.61%
Volatility (1Y) Calculated over the trailing 1-year period	8.08%	1.54%	+6.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.64%	2.85%	+6.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.64%	2.64%	+7.00%

LIBD vs. PBTP - Expense Ratio Comparison

LIBD has a 0.25% expense ratio, which is higher than PBTP's 0.07% 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

LIBD vs. PBTP - Dividend Comparison

LIBD's dividend yield for the trailing twelve months is around 11.50%, more than PBTP's 3.10% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
LIBD LifeX 2065 Inflation-Protected Longevity Income ETF	11.50%	13.52%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
PBTP Invesco PureBeta 0-5 Yr US TIPS ETF	3.10%	3.82%	2.59%	2.36%	5.33%	3.12%	1.25%	2.12%	2.33%	0.73%

Frequently Asked Questions

Can I hold both LIBD and PBTP in my portfolio?

LIBD and PBTP have a correlation of 0.43, 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 PBTP?

LIBD has higher volatility (2.14%) compared to PBTP (0.40%). In terms of maximum drawdown, LIBD dropped -7.31% vs PBTP's -5.44%.

Which ETF is better, LIBD or PBTP?

On 1-year performance, PBTP leads with 4.68% vs 3.91% for LIBD. On fees, PBTP is cheaper at 0.07% per year. On volatility, PBTP has been the lower-risk option at 0.40%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, LIBD or PBTP?

Over the 1-year period, PBTP has performed better with a 4.68% return vs 3.91%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, LIBD or PBTP?

PBTP is cheaper with a 0.07% expense ratio, compared with 0.25% for LIBD.

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

LIBD has the higher dividend yield at 11.50%, compared with 3.10% for PBTP.

What is the main difference between LIBD and PBTP?

They also come from different issuers: Stone Ridge and Invesco. Their fees differ too: 0.25% for LIBD and 0.07% for PBTP.

Which has better risk-adjusted returns?

PBTP currently has the higher Sharpe Ratio (3.05 vs 0.49), 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.