BIL vs. ATI
BIL (SPDR Bloomberg 1-3 Month T-Bill ETF) is Government Bonds fund tracking the Bloomberg 1-3 Month U.S. Treasury Bill Index, while ATI (Allegheny Technologies Incorporated) is a stock. Over the past 10 years, BIL returned 2.20%/yr vs 31.31%/yr for ATI. At a correlation of -0.03, they often move in opposite directions.
Performance
BIL vs. ATI - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, BIL achieves a 1.60% return, which is significantly lower than ATI's 72.95% return. Over the past 10 years, BIL has underperformed ATI with an annualized return of 2.20%, while ATI has yielded a comparatively higher 31.31% annualized return.
BIL
- 1D
- 0.03%
- 1M
- 0.27%
- YTD
- 1.60%
- 6M
- 1.76%
- 1Y
- 3.85%
- 3Y*
- 4.63%
- 5Y*
- 3.43%
- 10Y*
- 2.20%
ATI
- 1D
- -0.51%
- 1M
- 28.70%
- YTD
- 72.95%
- 6M
- 82.16%
- 1Y
- 133.59%
- 3Y*
- 69.52%
- 5Y*
- 52.82%
- 10Y*
- 31.31%
BIL vs. ATI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BIL SPDR Bloomberg 1-3 Month T-Bill ETF | 1.60% | 4.15% | 5.19% | 4.94% | 1.40% | -0.10% | 0.40% | 2.03% | 1.74% | 0.69% |
ATI Allegheny Technologies Incorporated | 72.95% | 108.50% | 21.05% | 52.28% | 87.45% | -5.01% | -18.83% | -5.10% | -9.82% | 51.54% |
Correlation
The correlation between BIL and ATI is -0.05, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.05 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.10 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.03 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.02 |
Correlation (All Time) Calculated using the full available price history since May 30, 2007 | -0.03 |
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
BIL vs. ATI — Risk / Return Rank
BIL
ATI
BIL vs. ATI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR Bloomberg 1-3 Month T-Bill ETF (BIL) and Allegheny Technologies Incorporated (ATI). 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.
| BIL | ATI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +16.42 | ||
| Sortino ratioReturn per unit of downside risk | +171.77 | ||
| Omega ratioGain probability vs. loss probability | 88.41 | 1.51 | +86.90 |
| Calmar ratioReturn relative to maximum drawdown | 357.44 | 5.40 | +352.04 |
| Martin ratioReturn relative to average drawdown | 2,834.34 | 13.48 | +2,820.85 |
Loading charts...
Drawdowns
BIL vs. ATI - Drawdown Comparison
The maximum BIL drawdown since its inception was -0.78%, smaller than the maximum ATI drawdown of -94.72%. Use the drawdown chart below to compare losses from any high point for BIL and ATI.
Loading charts...
Drawdown Indicators
| BIL | ATI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.78% | -94.72% | +93.94% |
Max Drawdown (1Y)Largest decline over 1 year | -0.01% | -25.31% | +25.30% |
Max Drawdown (3Y)Largest decline over 3 years | -0.01% | -38.02% | +38.01% |
Max Drawdown (5Y)Largest decline over 5 years | -0.09% | -39.03% | +38.94% |
Max Drawdown (10Y)Largest decline over 10 years | -0.21% | -82.43% | +82.22% |
Current DrawdownCurrent decline from peak | 0.00% | -0.51% | +0.51% |
Average DrawdownAverage peak-to-trough decline | -0.26% | -60.76% | +60.50% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.00% | 10.12% | -10.12% |
Volatility
BIL vs. ATI - Volatility Comparison
The current volatility for SPDR Bloomberg 1-3 Month T-Bill ETF (BIL) is 0.06%, while Allegheny Technologies Incorporated (ATI) has a volatility of 13.44%. This indicates that BIL experiences smaller price fluctuations and is considered to be less risky than ATI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| BIL | ATI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.06% | 13.44% | -13.38% |
Volatility (6M)Calculated over the trailing 6-month period | 0.14% | 29.89% | -29.75% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.20% | 42.63% | -42.43% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.26% | 43.12% | -42.86% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.26% | 51.55% | -51.29% |
Dividends
BIL vs. ATI - Dividend Comparison
BIL's dividend yield for the trailing twelve months is around 3.86%, while ATI has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ATI Allegheny Technologies Incorporated | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 1.51% | 5.51% |
BIL SPDR Bloomberg 1-3 Month T-Bill ETF | 3.86% | 4.13% | 5.03% | 4.92% | 1.35% | 0.00% | 0.30% | 2.05% | 1.66% | 0.68% | 0.07% | 0.00% |
Frequently Asked Questions
BIL and ATI have a correlation of -0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ATI has higher volatility (13.44%) compared to BIL (0.06%). In terms of maximum drawdown, BIL dropped -0.78% vs ATI's -94.72%.
BIL currently has the higher Sharpe Ratio (19.63 vs 3.21), 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.
Find the right allocation for BIL and ATI
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer