XBIL vs. BIL
XBIL (US Treasury 6 Month Bill ETF) and BIL (SPDR Bloomberg 1-3 Month T-Bill ETF) are both exchange-traded funds - XBIL is a Ultrashort Bond fund tracking the ICE BofA US 6-Month Treasury Bill Index - Benchmark TR Gross, while BIL is a Government Bonds fund tracking the Bloomberg 1-3 Month U.S. Treasury Bill Index. Both are passively managed. Over the past 3 years, XBIL returned 4.59%/yr vs 4.60%/yr for BIL. At a 0.43 correlation, their price movements are largely independent. XBIL charges 0.15%/yr vs 0.14%/yr for BIL.
Performance
XBIL vs. BIL - Performance Comparison
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Returns By Period
In the year-to-date period, XBIL achieves a 1.56% return, which is significantly lower than BIL's 1.66% return.
XBIL
- 1D
- -0.01%
- 1M
- 0.21%
- YTD
- 1.56%
- 6M
- 1.65%
- 1Y
- 3.84%
- 3Y*
- 4.59%
- 5Y*
- —
- 10Y*
- —
BIL
- 1D
- 0.00%
- 1M
- 0.27%
- YTD
- 1.66%
- 6M
- 1.75%
- 1Y
- 3.85%
- 3Y*
- 4.60%
- 5Y*
- 3.45%
- 10Y*
- 2.20%
XBIL vs. BIL - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
XBIL US Treasury 6 Month Bill ETF | 1.56% | 4.17% | 5.16% | 4.28% |
BIL SPDR Bloomberg 1-3 Month T-Bill ETF | 1.66% | 4.15% | 5.19% | 4.21% |
Correlation
The correlation between XBIL and BIL is 0.31, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.31 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.43 |
Correlation (All Time) Calculated using the full available price history since Mar 7, 2023 | 0.43 |
The correlation between XBIL and BIL shifts across timeframes, from 0.31 (1 year) to 0.43 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
XBIL vs. BIL — Risk / Return Rank
XBIL
BIL
XBIL vs. BIL - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for US Treasury 6 Month Bill ETF (XBIL) and SPDR Bloomberg 1-3 Month T-Bill ETF (BIL). 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.
| XBIL | BIL | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -6.76 | ||
| Sortino ratioReturn per unit of downside risk | -134.49 | ||
| Omega ratioGain probability vs. loss probability | 10.14 | 87.41 | -77.27 |
| Calmar ratioReturn relative to maximum drawdown | 64.36 | 353.28 | -288.92 |
| Martin ratioReturn relative to average drawdown | 595.33 | 2,801.35 | -2,206.02 |
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Drawdowns
XBIL vs. BIL - Drawdown Comparison
The maximum XBIL drawdown since its inception was -0.08%, smaller than the maximum BIL drawdown of -0.78%. Use the drawdown chart below to compare losses from any high point for XBIL and BIL.
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Drawdown Indicators
| XBIL | BIL | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.08% | -0.78% | +0.70% |
Max Drawdown (1Y)Largest decline over 1 year | -0.06% | -0.01% | -0.05% |
Max Drawdown (3Y)Largest decline over 3 years | -0.07% | -0.01% | -0.06% |
Max Drawdown (5Y)Largest decline over 5 years | — | -0.09% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -0.21% | — |
Current DrawdownCurrent decline from peak | -0.01% | 0.00% | -0.01% |
Average DrawdownAverage peak-to-trough decline | -0.00% | -0.26% | +0.26% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.01% | 0.00% | +0.01% |
Volatility
XBIL vs. BIL - Volatility Comparison
US Treasury 6 Month Bill ETF (XBIL) has a higher volatility of 0.13% compared to SPDR Bloomberg 1-3 Month T-Bill ETF (BIL) at 0.07%. This indicates that XBIL's price experiences larger fluctuations and is considered to be riskier than BIL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| XBIL | BIL | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.13% | 0.07% | +0.06% |
Volatility (6M)Calculated over the trailing 6-month period | 0.19% | 0.14% | +0.05% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.31% | 0.20% | +0.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.38% | 0.26% | +0.12% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.38% | 0.26% | +0.12% |
XBIL vs. BIL - Expense Ratio Comparison
XBIL has a 0.15% expense ratio, which is higher than BIL's 0.14% 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
XBIL vs. BIL - Dividend Comparison
XBIL's dividend yield for the trailing twelve months is around 3.77%, less than BIL's 3.85% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
BIL SPDR Bloomberg 1-3 Month T-Bill ETF | 3.85% | 4.13% | 5.03% | 4.92% | 1.35% | 0.00% | 0.30% | 2.05% | 1.66% | 0.68% | 0.07% |
XBIL US Treasury 6 Month Bill ETF | 3.77% | 4.01% | 4.90% | 4.30% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
XBIL and BIL have a correlation of 0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
XBIL has higher volatility (0.13%) compared to BIL (0.07%). In terms of maximum drawdown, XBIL dropped -0.08% vs BIL's -0.78%.
On 3-year performance, BIL leads with 4.60% vs 4.59% for XBIL. On fees, BIL is cheaper at 0.14% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, BIL has performed better with a 4.60% return vs 4.59%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BIL is cheaper with a 0.14% expense ratio, compared with 0.15% for XBIL.
BIL has the higher dividend yield at 3.85%, compared with 3.77% for XBIL.
XBIL is categorized as Ultrashort Bond, while BIL is Government Bonds. XBIL tracks ICE BofA US 6-Month Treasury Bill Index - Benchmark TR Gross, while BIL tracks Bloomberg 1-3 Month U.S. Treasury Bill Index. They also come from different issuers: US Benchmark Series and State Street. Their fees differ too: 0.15% for XBIL and 0.14% for BIL.
BIL currently has the higher Sharpe Ratio (19.37 vs 12.61), 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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