UNG vs BOIL Stock Comparison: AI Score, Valuation, Performance and Upside
UNG and BOIL sit in related but distinct corners of the ETF landscape — UNG centers on direct, unleveraged exposure to natural gas futures prices, while BOIL focuses on amplified, 2x-leveraged daily natural gas price exposure. Investors choosing between them should weigh how each fund's strategy lines up with their own goals rather than assuming they're interchangeable.
Choosing between UNG and BOIL comes down to which specific exposure — direct, unleveraged exposure to natural gas futures prices or amplified, 2x-leveraged daily natural gas price exposure — better matches the role you want this holding to play in a diversified portfolio.
UNG holds the edge across 4 of 5 key metrics in this comparison. UNG has delivered stronger 1-year price return (-6.65% vs -56.60% for BOIL).
- want direct, unleveraged exposure to natural gas futures prices
- prefer USCF's approach and fund lineup
- value direct commodity exposure without utility or producer equity risk
- are comfortable with notorious for severe long-term value erosion from futures contango
- want amplified, 2x-leveraged daily natural gas price exposure
- prefer ProShares's approach and fund lineup
- value amplifies gains for correctly-timed, short-term natural gas rallies
- are comfortable with daily leverage reset causes severe compounding decay over any extended holding period
| Metric | UNG | BOIL |
|---|---|---|
| ETF scorei | 21.3 | 20.4 |
| Latest closei | $11.09 | $22.02 |
| 1M returni | +5.22% | +7.84% |
| 3M returni | +6.43% | +0.09% |
| 6M returni | +2.88% | -18.32% |
| 1Y returni | -6.65% | -56.60% |
The ETF score weights long-term returns and risk-adjusted performance most heavily, but still rewards low expense ratios, larger fund size, and broader diversification — so it can favor low-cost, broad, mega-cap funds over smaller thematic or actively-managed funds even when the latter have delivered stronger returns.
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | UNG | BOIL |
|---|---|---|
| 1Y ago | $9.34K (-6.6%) started 2025-10-15 | $4.34K (-56.6%) started 2025-10-15 |
| 5Y ago | $1.47K (-85.3%) started 2021-10-15 | $15.54 (-99.8%) started 2021-10-15 |
| 10Y ago | $741.31 (-92.6%) started 2016-10-17 | $1.19 (-100.0%) started 2016-10-17 |
Hypothetical — past performance does not guarantee future results.
| Metric | UNG | BOIL |
|---|---|---|
| Expense ratioi | 1.17% | 1.39% |
| Total assets (AUM)i | $458.43M | $305.23M |
| Dividend yieldi | 0.00% | 0.00% |
| Trailing P/Ei | N/A | N/A |
| Betai | 0.25 | 0.38 |
| 52-week change | -6.65% | -56.60% |
| Metric | UNG | BOIL |
|---|---|---|
| 1Y returni | -6.65% | -56.60% |
| 6M returni | +2.88% | -18.32% |
| 3M returni | +6.43% | +0.09% |
| 1M returni | +5.22% | +7.84% |
| 1Y Sharpe ratio | 0.10 | -0.20 |
| Betai | 0.25 | 0.38 |
| Dividend yieldi | 0.00% | 0.00% |
| 5Y CAGR | -31.84% | -72.57% |
Over the past year, UNG and BOIL have moved strongly in the same direction (correlation of 0.99), based on daily returns.
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | UNG | BOIL |
|---|---|---|---|
| 1Y | Growthi | -6.65% | -56.60% |
| CAGRi | -6.65% | -56.63% | |
| Volatilityi | 58.45% | 110.05% | |
| Sharpe ratioi | 0.10 | -0.20 | |
| Sortino ratioi | 0.14 | -0.28 | |
| Max drawdowni | 43.02% | 78.59% | |
| Current drawdowni | 34.38% | 74.76% | |
| Avg drawdowni | 27.64% | 55.61% | |
| Ulcer Indexi | 30.45% | 60.99% | |
| Max daily dropi | 24.85% | 50.53% | |
| Max wkly dropi | 22.24% | 45.83% | |
| 5Y | Growthi | -85.28% | -99.84% |
| CAGRi | -31.84% | -72.57% | |
| Volatilityi | 63.25% | 116.93% | |
| Sharpe ratioi | -0.36 | -0.55 | |
| Sortino ratioi | -0.50 | -0.75 | |
| Max drawdowni | 92.88% | 99.93% | |
| Current drawdowni | 91.79% | 99.92% | |
| Avg drawdowni | 70.88% | 85.87% | |
| Ulcer Indexi | 76.48% | 89.63% | |
| Max daily dropi | 24.85% | 50.53% | |
| Max wkly dropi | 27.86% | 47.02% | |
| 10Y | Growthi | -92.59% | -99.99% |
| CAGRi | -22.92% | -59.51% | |
| Volatilityi | 54.72% | 101.71% | |
| Sharpe ratioi | -0.28 | -0.42 | |
| Sortino ratioi | -0.40 | -0.58 | |
| Max drawdowni | 93.88% | 99.99% | |
| Current drawdowni | 92.95% | 99.99% | |
| Avg drawdowni | 62.50% | 86.90% | |
| Ulcer Indexi | 67.32% | 89.11% | |
| Max daily dropi | 24.85% | 50.53% | |
| Max wkly dropi | 27.86% | 47.02% |
| Category | UNG | BOIL |
|---|---|---|
| Fund name | United States Natural Gas Fund, LP | ProShares Ultra Bloomberg Natural Gas |
| Type | ETF | ETF |
| Expense ratioi | 1.17% | 1.39% |
| Total assets (AUM)i | $458.43M | $305.23M |
| Dividend yieldi | 0.00% | 0.00% |
- Direct commodity exposure without utility or producer equity risk
- Highly liquid trading vehicle for natural gas price moves
- No single-company balance-sheet or management risk
- Amplifies gains for correctly-timed, short-term natural gas rallies
- Useful as a tactical hedging or speculative trading tool
- Highly liquid among leveraged commodity ETFs
- Notorious for severe long-term value erosion from futures contango
- Extremely volatile, driven by weather and storage-report swings
- Explicitly a short-term trading tool, not a buy-and-hold investment
- Daily leverage reset causes severe compounding decay over any extended holding period
- Extremely volatile, unsuitable for buy-and-hold investors
- Can lose the large majority of its value even if gas prices are flat over time
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