BULD vs. UNG
BULD (Pacer BlueStar Engineering the Future ETF) and UNG (United States Natural Gas Fund LP) are both exchange-traded funds - BULD is a Technology Equities fund tracking the BlueStar Robotics & 3D Printing Index, while UNG is a Oil & Gas fund tracking the Front Month Natural Gas Futures. Both are passively managed. Over the past 3 years, BULD returned 16.27%/yr vs -27.27%/yr for UNG. At a 0.01 correlation, their price movements are largely independent. BULD charges 0.60%/yr vs 1.17%/yr for UNG.
Performance
BULD vs. UNG - Performance Comparison
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Returns By Period
In the year-to-date period, BULD achieves a 33.10% return, which is significantly higher than UNG's -15.01% return.
BULD
- 1D
- -1.61%
- 1M
- -2.11%
- 6M
- 16.77%
- YTD
- 33.10%
- 1Y
- 51.11%
- 3Y*
- 16.27%
- 5Y*
- —
- 10Y*
- —
UNG
- 1D
- -1.23%
- 1M
- -11.39%
- 6M
- 1.17%
- YTD
- -15.01%
- 1Y
- -34.05%
- 3Y*
- -27.27%
- 5Y*
- -27.30%
- 10Y*
- -22.23%
BULD vs. UNG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
BULD Pacer BlueStar Engineering the Future ETF | 33.10% | 23.20% | -3.93% | 28.27% | -12.41% |
UNG United States Natural Gas Fund LP | -15.01% | -27.07% | -17.11% | -64.04% | -51.40% |
Correlation
The correlation between BULD and UNG is -0.27, 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 | -0.27 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.07 |
Correlation (All Time) Calculated using the full available price history since May 5, 2022 | 0.01 |
The correlation between BULD and UNG shifts across timeframes, from -0.27 (1 year) to 0.01 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
BULD vs. UNG — Risk / Return Rank
BULD
UNG
BULD vs. UNG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Pacer BlueStar Engineering the Future ETF (BULD) and United States Natural Gas Fund LP (UNG). 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.
| BULD | UNG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.23 | ||
| Sortino ratioReturn per unit of downside risk | +2.85 | ||
| Omega ratioGain probability vs. loss probability | 1.28 | 0.93 | +0.35 |
| Calmar ratioReturn relative to maximum drawdown | 3.32 | -0.86 | +4.17 |
| Martin ratioReturn relative to average drawdown | 9.81 | -1.32 | +11.13 |
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Drawdowns
BULD vs. UNG - Drawdown Comparison
The maximum BULD drawdown since its inception was -27.64%, smaller than the maximum UNG drawdown of -99.88%. Use the drawdown chart below to compare losses from any high point for BULD and UNG.
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Drawdown Indicators
| BULD | UNG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -27.64% | -99.88% | +72.24% |
Max Drawdown (1Y)Largest decline over 1 year | -15.48% | -39.94% | +24.46% |
Max Drawdown (3Y)Largest decline over 3 years | -27.64% | -68.16% | +40.52% |
Max Drawdown (5Y)Largest decline over 5 years | — | -92.49% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -93.55% | — |
Current DrawdownCurrent decline from peak | -9.78% | -99.87% | +90.09% |
Average DrawdownAverage peak-to-trough decline | -8.18% | -90.00% | +81.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.22% | 25.76% | -20.54% |
Volatility
BULD vs. UNG - Volatility Comparison
Pacer BlueStar Engineering the Future ETF (BULD) has a higher volatility of 12.08% compared to United States Natural Gas Fund LP (UNG) at 10.58%. This indicates that BULD's price experiences larger fluctuations and is considered to be riskier than UNG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BULD | UNG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.08% | 10.58% | +1.50% |
Volatility (6M)Calculated over the trailing 6-month period | 24.95% | 48.34% | -23.39% |
Volatility (1Y)Calculated over the trailing 1-year period | 31.02% | 59.59% | -28.57% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 28.29% | 64.19% | -35.90% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 28.29% | 54.74% | -26.45% |
BULD vs. UNG - Expense Ratio Comparison
BULD has a 0.60% expense ratio, which is lower than UNG's 1.17% expense ratio.
Dividends
BULD vs. UNG - Dividend Comparison
BULD's dividend yield for the trailing twelve months is around 0.86%, while UNG has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
BULD Pacer BlueStar Engineering the Future ETF | 0.86% | 1.24% | 0.18% | 0.21% | 0.08% |
UNG United States Natural Gas Fund LP | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
BULD and UNG have a correlation of -0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BULD has higher volatility (12.08%) compared to UNG (10.58%). In terms of maximum drawdown, BULD dropped -27.64% vs UNG's -99.88%.
On 3-year performance, BULD leads with 16.27% vs -27.27% for UNG. On fees, BULD is cheaper at 0.60% per year. On volatility, UNG has been the lower-risk option at 10.58%. 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 16.27% return vs -27.27%. 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 1.17% for UNG.
BULD has the higher dividend yield at 0.86%, compared with 0.00% for UNG.
BULD is categorized as Technology Equities, while UNG is Oil & Gas. BULD tracks BlueStar Robotics & 3D Printing Index, while UNG tracks Front Month Natural Gas Futures. They also come from different issuers: Pacer and USCF Investments. Their fees differ too: 0.60% for BULD and 1.17% for UNG.
BULD currently has the higher Sharpe Ratio (1.66 vs -0.57), 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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