BOIL vs. BULD

Last updated Jul 17, 2026

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 -66.23%/yr vs 16.27%/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

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares Ultra Bloomberg Natural Gas (BOIL) and Pacer BlueStar Engineering the Future ETF (BULD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BOIL achieves a -51.97% return, which is significantly lower than BULD's 33.10% return.

BOIL

• 1D: -2.65%
• 1M: -22.34%
• 6M: -31.80%
• YTD: -51.97%
• 1Y: -77.53%
• 3Y*: -66.23%
• 5Y*: -68.58%
• 10Y*: -58.64%

BULD

• 1D: -1.61%
• 1M: -2.11%
• 6M: 16.77%
• YTD: 33.10%
• 1Y: 51.11%
• 3Y*: 16.27%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

BOIL vs. BULD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
BOIL ProShares Ultra Bloomberg Natural Gas	-51.97%	-58.98%	-60.75%	-92.00%	-84.68%
BULD Pacer BlueStar Engineering the Future ETF	33.10%	23.20%	-3.93%	28.27%	-12.41%

Correlation

The correlation between BOIL and BULD is -0.28, 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	-0.28
Correlation (3Y) Calculated over the trailing 3-year period	-0.09
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 -0.28, meaning they now move in opposite directions more often than their long-term average.

Return for Risk

BOIL vs. BULD — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BOIL

BOIL Risk / Return Rank: 2
BOIL Sharpe Ratio Rank: 4
BOIL Sortino Ratio Rank: 4
BOIL Omega Ratio Rank: 3
BOIL Calmar Ratio Rank: 0
BOIL Martin Ratio Rank: 2

BULD

BULD Risk / Return Rank: 66
BULD Sharpe Ratio Rank: 63
BULD Sortino Ratio Rank: 61
BULD Omega Ratio Rank: 55
BULD Calmar Ratio Rank: 80
BULD Martin Ratio Rank: 69

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

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 ratio: Return per unit of total volatility	-0.69	1.66	-2.35
Sortino ratio: Return per unit of downside risk	-0.98	2.31	-3.28
Omega ratio: Gain probability vs. loss probability	0.87	1.28	-0.40
Calmar ratio: Return relative to maximum drawdown	-1.00	3.32	-4.32
Martin ratio: Return relative to average drawdown	-1.40	9.81	-11.21

BOIL vs. BULD - Sharpe Ratio Comparison

The current BOIL Sharpe Ratio is -0.69, which is lower than the BULD Sharpe Ratio of 1.66. The chart below compares the historical Sharpe Ratios of BOIL and BULD, 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

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.

Drawdown Indicators

	BOIL	BULD	Difference
Max Drawdown Largest peak-to-trough decline	-100.00%	-27.64%	-72.36%
Max Drawdown (1Y) Largest decline over 1 year	-77.83%	-15.48%	-62.35%
Max Drawdown (3Y) Largest decline over 3 years	-97.17%	-27.64%	-69.53%
Max Drawdown (5Y) Largest decline over 5 years	-99.92%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-99.99%	—	—
Current Drawdown Current decline from peak	-100.00%	-9.78%	-90.22%
Average Drawdown Average peak-to-trough decline	-93.61%	-8.18%	-85.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	55.55%	5.22%	+50.33%

Volatility

BOIL vs. BULD - Volatility Comparison

ProShares Ultra Bloomberg Natural Gas (BOIL) has a higher volatility of 19.67% compared to Pacer BlueStar Engineering the Future ETF (BULD) at 12.08%. 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.

Volatility by Period

	BOIL	BULD	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.67%	12.08%	+7.59%
Volatility (6M) Calculated over the trailing 6-month period	100.26%	24.95%	+75.31%
Volatility (1Y) Calculated over the trailing 1-year period	111.81%	31.02%	+80.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	119.02%	28.29%	+90.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	101.73%	28.29%	+73.44%

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 0.86%.

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	0.86%	1.24%	0.18%	0.21%	0.08%

Frequently Asked Questions

Can I hold both BOIL and BULD in my portfolio?

BOIL and BULD have a correlation of -0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BOIL or BULD?

BOIL has higher volatility (19.67%) compared to BULD (12.08%). In terms of maximum drawdown, BOIL dropped -100.00% vs BULD's -27.64%.

Which ETF is better, BOIL or BULD?

On 3-year performance, BULD leads with 16.27% vs -66.23% for BOIL. On fees, BULD is cheaper at 0.60% per year. On volatility, BULD has been the lower-risk option at 12.08%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BOIL or BULD?

Over the 3-year period, BULD has performed better with a 16.27% return vs -66.23%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BOIL or BULD?

BULD is cheaper with a 0.60% expense ratio, compared with 1.31% for BOIL.

Which ETF pays a higher dividend yield, BOIL or BULD?

BULD has the higher dividend yield at 0.86%, compared with 0.00% for BOIL.

What is the main difference between BOIL and BULD?

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.

Which has better risk-adjusted returns?

BULD currently has the higher Sharpe Ratio (1.66 vs -0.69), 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.