LIAU vs. RBIL

Last updated Aug 1, 2026

LIAU (LifeX 2060 Inflation-Protected Longevity Income ETF) and RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) are both Inflation-Protected Bonds funds. LIAU is actively managed, while RBIL is passively managed. Over the past year, LIAU returned -1.44% vs 3.94% for RBIL. Their -0.06 correlation means they have often moved in opposite directions in the past. LIAU charges 0.25%/yr vs 0.17%/yr for RBIL.

Performance

LIAU vs. RBIL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in LifeX 2060 Inflation-Protected Longevity Income ETF (LIAU) 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, LIAU achieves a -2.43% return, which is significantly lower than RBIL's 2.70% return.

LIAU

• 1D: -0.48%
• 1M: -2.85%
• 6M: -2.52%
• YTD: -2.43%
• 1Y: -1.44%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: -4.00%

RBIL

• 1D: -0.02%
• 1M: 0.26%
• 6M: 2.32%
• YTD: 2.70%
• 1Y: 3.94%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 3.91%

*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)
LIAU LifeX 2060 Inflation-Protected Longevity Income ETF	$7.03K	$4.71K	$28.28K
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	$1.12M	$1.89M	$2.34M

LIAU vs. RBIL - Yearly Performance Comparison

	2026 (YTD)	2025
LIAU LifeX 2060 Inflation-Protected Longevity Income ETF	-2.43%	0.48%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	2.70%	2.85%

Correlation

The correlation between LIAU and RBIL is -0.08, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	-0.08
Correlation (All Time) Calculated using the full available price history since Feb 25, 2025	-0.06

Return for Risk

LIAU vs. RBIL — Risk / Return Rank

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

LIAU

LIAU Risk / Return Rank: 9
LIAU Sharpe Ratio Rank: 10
LIAU Sortino Ratio Rank: 9
LIAU Omega Ratio Rank: 8
LIAU Calmar Ratio Rank: 9
LIAU Martin Ratio Rank: 9

RBIL

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

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.

LIAU vs. RBIL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for LifeX 2060 Inflation-Protected Longevity Income ETF (LIAU) 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.

	LIAU	RBIL	Difference
Sharpe ratio: Return per unit of total volatility	-0.10	4.23	-4.33
Sortino ratio: Return per unit of downside risk	-0.09	6.54	-6.63
Omega ratio: Gain probability vs. loss probability	0.99	2.09	-1.10
Calmar ratio: Return relative to maximum drawdown	-0.12	7.24	-7.36
Martin ratio: Return relative to average drawdown	-0.25	29.66	-29.91

LIAU vs. RBIL - Sharpe Ratio Comparison

The current LIAU Sharpe Ratio is -0.10, which is lower than the RBIL Sharpe Ratio of 4.23. The chart below compares the historical Sharpe Ratios of LIAU 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

LIAU vs. RBIL - Drawdown Comparison

The maximum LIAU drawdown since its inception was -9.95%, which is greater than RBIL's maximum drawdown of -0.56%. Use the drawdown chart below to compare losses from any high point for LIAU and RBIL.

Drawdown Indicators

	LIAU	RBIL	Difference
Max Drawdown Largest peak-to-trough decline	-9.95%	-0.56%	-9.39%
Max Drawdown (1Y) Largest decline over 1 year	-5.88%	-0.56%	-5.32%
Current Drawdown Current decline from peak	-7.36%	-0.13%	-7.23%
Average Drawdown Average peak-to-trough decline	-5.23%	-0.08%	-5.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.81%	0.14%	+2.67%

Volatility

LIAU vs. RBIL - Volatility Comparison

LifeX 2060 Inflation-Protected Longevity Income ETF (LIAU) has a higher volatility of 1.62% compared to F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) at 0.31%. This indicates that LIAU'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

	LIAU	RBIL	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.62%	0.31%	+1.31%
Volatility (6M) Calculated over the trailing 6-month period	5.33%	0.89%	+4.44%
Volatility (1Y) Calculated over the trailing 1-year period	7.06%	0.97%	+6.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	8.55%	1.06%	+7.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.55%	1.06%	+7.49%

LIAU vs. RBIL - Expense Ratio Comparison

LIAU has a 0.25% expense ratio, which is higher than RBIL's 0.17% 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

LIAU vs. RBIL - Dividend Comparison

LIAU's dividend yield for the trailing twelve months is around 9.64%, more than RBIL's 4.16% yield.

Position	TTM	2025	2024
LIAU LifeX 2060 Inflation-Protected Longevity Income ETF	9.64%	12.93%	1.04%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	4.16%	3.65%	0.00%

Frequently Asked Questions

Can I hold both LIAU and RBIL in my portfolio?

LIAU 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, LIAU or RBIL?

LIAU has higher volatility (1.62%) compared to RBIL (0.31%). In terms of maximum drawdown, LIAU dropped -9.95% vs RBIL's -0.56%.

Which ETF is better, LIAU or RBIL?

On 1-year performance, RBIL leads with 3.94% vs -1.44% for LIAU. On fees, RBIL is cheaper at 0.17% per year. On volatility, RBIL has been the lower-risk option at 0.31%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, LIAU or RBIL?

Over the 1-year period, RBIL has performed better with a 3.94% return vs -1.44%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, LIAU or RBIL?

RBIL is cheaper with a 0.17% expense ratio, compared with 0.25% for LIAU.

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

LIAU has the higher dividend yield at 9.64%, compared with 4.16% for RBIL.

What is the main difference between LIAU and RBIL?

They also come from different issuers: Stone Ridge and F/m. Their fees differ too: 0.25% for LIAU and 0.17% for RBIL.

Which has better risk-adjusted returns?

RBIL currently has the higher Sharpe Ratio (4.23 vs -0.10), 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.