LFBE vs. IBTF
LFBE (LifeX 2065 Longevity Income ETF) and IBTF (iShares iBonds Dec 2025 Term Treasury ETF) are both Government Bonds funds. LFBE is actively managed, while IBTF is passively managed. Over the past year, LFBE returned -1.56% vs 1.44% for IBTF. Their -0.01 correlation means they have often moved in opposite directions in the past. LFBE charges 0.25%/yr vs 0.07%/yr for IBTF.
Performance
LFBE vs. IBTF - Performance Comparison
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Returns By Period
LFBE
- 1D
- 0.42%
- 1M
- -3.08%
- 6M
- -2.40%
- YTD
- -2.84%
- 1Y
- -1.56%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 1.37%
IBTF
- 1D
- 0.00%
- 1M
- 0.00%
- 6M
- 0.00%
- YTD
- 0.00%
- 1Y
- 1.44%
- 3Y*
- 3.64%
- 5Y*
- 0.80%
- 10Y*
- —
- ALL TIME*
- 1.11%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $4.00K | $2.68K | $1.34K |
LFBE vs. IBTF - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
LFBE LifeX 2065 Longevity Income ETF | -2.84% | 5.14% |
IBTF iShares iBonds Dec 2025 Term Treasury ETF | 0.00% | 3.86% |
Correlation
The correlation between LFBE and IBTF 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 Jan 6, 2025 | -0.01 |
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Return for Risk
LFBE vs. IBTF — Risk / Return Rank
LFBE
IBTF
LFBE vs. IBTF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for LifeX 2065 Longevity Income ETF (LFBE) and iShares iBonds Dec 2025 Term Treasury ETF (IBTF). 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.
| LFBE | IBTF | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -6.16 | ||
| Sortino ratioReturn per unit of downside risk | -20.54 | ||
| Omega ratioGain probability vs. loss probability | 0.98 | 7.12 | -6.15 |
| Calmar ratioReturn relative to maximum drawdown | -0.23 | 39.94 | -40.17 |
| Martin ratioReturn relative to average drawdown | -0.51 | 258.91 | -259.41 |
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Drawdowns
LFBE vs. IBTF - Drawdown Comparison
The maximum LFBE drawdown since its inception was -7.65%, smaller than the maximum IBTF drawdown of -10.45%. Use the drawdown chart below to compare losses from any high point for LFBE and IBTF.
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Drawdown Indicators
| LFBE | IBTF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -7.65% | -10.45% | +2.80% |
Max Drawdown (1Y)Largest decline over 1 year | -6.86% | -0.04% | -6.82% |
Max Drawdown (3Y)Largest decline over 3 years | — | -0.43% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -9.35% | — |
Current DrawdownCurrent decline from peak | -6.47% | 0.00% | -6.47% |
Average DrawdownAverage peak-to-trough decline | -3.03% | -3.24% | +0.21% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.09% | 0.01% | +3.08% |
Volatility
LFBE vs. IBTF - Volatility Comparison
LifeX 2065 Longevity Income ETF (LFBE) has a higher volatility of 2.22% compared to iShares iBonds Dec 2025 Term Treasury ETF (IBTF) at 0.00%. This indicates that LFBE's price experiences larger fluctuations and is considered to be riskier than IBTF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| LFBE | IBTF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.22% | 0.00% | +2.22% |
Volatility (6M)Calculated over the trailing 6-month period | 6.08% | 0.06% | +6.02% |
Volatility (1Y)Calculated over the trailing 1-year period | 7.99% | 0.29% | +7.70% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 9.24% | 2.35% | +6.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 9.24% | 2.53% | +6.71% |
LFBE vs. IBTF - Expense Ratio Comparison
LFBE has a 0.25% expense ratio, which is higher than IBTF'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
LFBE vs. IBTF - Dividend Comparison
LFBE's dividend yield for the trailing twelve months is around 8.49%, more than IBTF's 1.37% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 |
|---|---|---|---|---|---|---|---|
IBTF iShares iBonds Dec 2025 Term Treasury ETF | 1.37% | 3.83% | 4.32% | 4.03% | 1.93% | 0.57% | 0.59% |
LFBE LifeX 2065 Longevity Income ETF | 8.49% | 12.22% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
LFBE and IBTF 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.
LFBE has higher volatility (2.22%) compared to IBTF (0.00%). In terms of maximum drawdown, LFBE dropped -7.65% vs IBTF's -10.45%.
On 1-year performance, IBTF leads with 1.44% vs -1.56% for LFBE. On fees, IBTF is cheaper at 0.07% per year. On volatility, IBTF has been the lower-risk option at 0.00%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBTF has performed better with a 1.44% return vs -1.56%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBTF is cheaper with a 0.07% expense ratio, compared with 0.25% for LFBE.
LFBE has the higher dividend yield at 8.49%, compared with 1.37% for IBTF.
They also come from different issuers: Stone Ridge and iShares. Their fees differ too: 0.25% for LFBE and 0.07% for IBTF.
IBTF currently has the higher Sharpe Ratio (5.96 vs -0.20), 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.
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