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. Both are passively managed. Over the past 3 years, BULD returned 18.81%/yr vs -21.15%/yr for UNG. At a 0.01 correlation, their price movements are largely independent. BULD charges 0.60%/yr vs 1.28%/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 34.89% return, which is significantly higher than UNG's -1.14% return.
BULD
- 1D
- 0.45%
- 1M
- 11.06%
- YTD
- 34.89%
- 6M
- 30.07%
- 1Y
- 64.47%
- 3Y*
- 18.81%
- 5Y*
- —
- 10Y*
- —
UNG
- 1D
- 3.50%
- 1M
- 13.91%
- YTD
- -1.14%
- 6M
- -22.61%
- 1Y
- -28.33%
- 3Y*
- -21.15%
- 5Y*
- -22.57%
- 10Y*
- -20.42%
BULD vs. UNG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
BULD Pacer BlueStar Engineering the Future ETF | 34.89% | 23.20% | -3.93% | 28.27% | -12.41% |
UNG United States Natural Gas Fund LP | -1.14% | -27.07% | -17.11% | -64.04% | -53.16% |
Correlation
The correlation between BULD and UNG is -0.30, 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 | -0.30 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.07 |
Correlation (All Time) Calculated using the full available price history since May 6, 2022 | 0.01 |
The correlation between BULD and UNG shifts across timeframes, from -0.30 (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.
| BULD | UNG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.80 | ||
| Sortino ratioReturn per unit of downside risk | +3.49 | ||
| Omega ratioGain probability vs. loss probability | 1.37 | 0.96 | +0.41 |
| Calmar ratioReturn relative to maximum drawdown | 4.19 | -0.65 | +4.84 |
| Martin ratioReturn relative to average drawdown | 13.24 | -0.95 | +14.19 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| BULD | UNG | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.33 | -0.47 | +2.80 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | -0.35 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | -0.37 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.56 | -0.57 | +1.13 |
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% | -43.86% | +28.38% |
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 | 0.00% | -99.85% | +99.85% |
Average DrawdownAverage peak-to-trough decline | -8.29% | -89.96% | +81.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.88% | 29.75% | -24.87% |
Volatility
BULD vs. UNG - Volatility Comparison
The current volatility for Pacer BlueStar Engineering the Future ETF (BULD) is 8.08%, while United States Natural Gas Fund LP (UNG) has a volatility of 12.99%. This indicates that BULD experiences smaller price fluctuations and is considered to be less risky 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 | 8.08% | 12.99% | -4.91% |
Volatility (6M)Calculated over the trailing 6-month period | 21.29% | 53.06% | -31.77% |
Volatility (1Y)Calculated over the trailing 1-year period | 27.83% | 60.59% | -32.76% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.72% | 64.11% | -36.39% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.72% | 54.78% | -27.06% |
BULD vs. UNG - Expense Ratio Comparison
BULD has a 0.60% expense ratio, which is lower than UNG's 1.28% expense ratio.
Dividends
BULD vs. UNG - Dividend Comparison
BULD's dividend yield for the trailing twelve months is around 0.92%, while UNG has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
BULD Pacer BlueStar Engineering the Future ETF | 0.92% | 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 -0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
UNG has higher volatility (12.99%) compared to BULD (8.08%). In terms of maximum drawdown, BULD dropped -27.64% vs UNG's -99.88%.
On 3-year performance, BULD leads with 18.81% vs -21.15% for UNG. On fees, BULD is cheaper at 0.60% per year. On volatility, BULD has been the lower-risk option at 8.08%. 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 18.81% return vs -21.15%. 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 1.28% for UNG.
BULD has the higher dividend yield at 0.92%, 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. They also come from different issuers: Pacer and Concierge Technologies. Their fees differ too: 0.60% for BULD and 1.28% for UNG.
BULD currently has the higher Sharpe Ratio (2.33 vs -0.47), 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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