BOIL vs. BULD
BOIL (ProShares Ultra Bloomberg Natural Gas) and BULD (Pacer BlueStar Engineering the Future ETF) are both exchange-traded funds - BOIL is a Oil & Gas fund tracking the Bloomberg Natural Gas Subindex, while BULD is a Technology Equities fund tracking the BlueStar Robotics & 3D Printing Index. Both are passively managed. Over the past 3 years, BOIL returned -66.48%/yr vs 20.25%/yr for BULD. At a correlation of -0.00, they often move in opposite directions. BOIL charges 1.31%/yr vs 0.60%/yr for BULD.
Performance
BOIL vs. BULD - Performance Comparison
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Returns By Period
In the year-to-date period, BOIL achieves a -41.05% return, which is significantly lower than BULD's 36.22% return.
BOIL
- 1D
- -4.80%
- 1M
- 5.97%
- YTD
- -41.05%
- 6M
- -46.24%
- 1Y
- -75.60%
- 3Y*
- -66.48%
- 5Y*
- -66.38%
- 10Y*
- -57.84%
BULD
- 1D
- -4.35%
- 1M
- 7.78%
- YTD
- 36.22%
- 6M
- 33.89%
- 1Y
- 64.21%
- 3Y*
- 20.25%
- 5Y*
- —
- 10Y*
- —
BOIL vs. BULD - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
BOIL ProShares Ultra Bloomberg Natural Gas | -41.05% | -58.98% | -60.75% | -92.00% | -84.68% |
BULD Pacer BlueStar Engineering the Future ETF | 36.22% | 23.20% | -3.93% | 28.27% | -12.41% |
Correlation
The correlation between BOIL and BULD is -0.29, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.29 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.08 |
Correlation (All Time) Calculated using the full available price history since May 5, 2022 | -0.00 |
Over the past year, the inverse relationship between BOIL and BULD has strengthened: their correlation has moved from -0.00 to -0.29, meaning they now move in opposite directions more often than their long-term average.
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Return for Risk
BOIL vs. BULD — Risk / Return Rank
BOIL
BULD
BOIL vs. BULD - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares Ultra Bloomberg Natural Gas (BOIL) and Pacer BlueStar Engineering the Future ETF (BULD). 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.
| BOIL | BULD | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.85 | ||
| Sortino ratioReturn per unit of downside risk | -3.75 | ||
| Omega ratioGain probability vs. loss probability | 0.89 | 1.35 | -0.46 |
| Calmar ratioReturn relative to maximum drawdown | -0.98 | 4.17 | -5.15 |
| Martin ratioReturn relative to average drawdown | -1.36 | 13.10 | -14.45 |
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Drawdowns
BOIL vs. BULD - Drawdown Comparison
The maximum BOIL drawdown since its inception was -100.00%, which is greater than BULD's maximum drawdown of -27.64%. Use the drawdown chart below to compare losses from any high point for BOIL and BULD.
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Drawdown Indicators
| BOIL | BULD | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -100.00% | -27.64% | -72.36% |
Max Drawdown (1Y)Largest decline over 1 year | -77.43% | -15.48% | -61.95% |
Max Drawdown (3Y)Largest decline over 3 years | -96.86% | -27.64% | -69.22% |
Max Drawdown (5Y)Largest decline over 5 years | -99.91% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -99.99% | — | — |
Current DrawdownCurrent decline from peak | -100.00% | -4.37% | -95.63% |
Average DrawdownAverage peak-to-trough decline | -93.59% | -8.21% | -85.38% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 56.83% | 4.92% | +51.91% |
Volatility
BOIL vs. BULD - Volatility Comparison
ProShares Ultra Bloomberg Natural Gas (BOIL) has a higher volatility of 23.63% compared to Pacer BlueStar Engineering the Future ETF (BULD) at 12.04%. This indicates that BOIL's price experiences larger fluctuations and is considered to be riskier than BULD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BOIL | BULD | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 23.63% | 12.04% | +11.59% |
Volatility (6M)Calculated over the trailing 6-month period | 104.46% | 23.55% | +80.91% |
Volatility (1Y)Calculated over the trailing 1-year period | 113.44% | 29.58% | +83.86% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 118.97% | 28.06% | +90.91% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 101.84% | 28.06% | +73.78% |
BOIL vs. BULD - Expense Ratio Comparison
BOIL has a 1.31% expense ratio, which is higher than BULD's 0.60% expense ratio.
Dividends
BOIL vs. BULD - Dividend Comparison
BOIL has not paid dividends to shareholders, while BULD's dividend yield for the trailing twelve months is around 0.84%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
BOIL ProShares Ultra Bloomberg Natural Gas | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
BULD Pacer BlueStar Engineering the Future ETF | 0.84% | 1.24% | 0.18% | 0.21% | 0.08% |
Frequently Asked Questions
BOIL and BULD have a correlation of -0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BOIL has higher volatility (23.63%) compared to BULD (12.04%). In terms of maximum drawdown, BOIL dropped -100.00% vs BULD's -27.64%.
On 3-year performance, BULD leads with 20.25% vs -66.48% for BOIL. On fees, BULD is cheaper at 0.60% per year. On volatility, BULD has been the lower-risk option at 12.04%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, BULD has performed better with a 20.25% return vs -66.48%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BULD is cheaper with a 0.60% expense ratio, compared with 1.31% for BOIL.
BULD has the higher dividend yield at 0.84%, compared with 0.00% for BOIL.
BOIL is categorized as Oil & Gas, while BULD is Technology Equities. BOIL tracks Bloomberg Natural Gas Subindex, while BULD tracks BlueStar Robotics & 3D Printing Index. They also come from different issuers: ProShares and Pacer. Their fees differ too: 1.31% for BOIL and 0.60% for BULD.
BULD currently has the higher Sharpe Ratio (2.18 vs -0.67), 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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