ROM vs. BULL
ROM (ProShares Ultra Technology) is Leveraged Equities fund tracking the S&P Technology Select Sector Index (200%), while BULL (Webull Corp) is a stock. Over the past year, ROM returned 87.84% vs -37.03% for BULL. At a 0.36 correlation, their price movements are largely independent.
Performance
ROM vs. BULL - Performance Comparison
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Returns By Period
In the year-to-date period, ROM achieves a 48.47% return, which is significantly higher than BULL's -12.23% return.
ROM
- 1D
- -4.05%
- 1M
- -8.02%
- YTD
- 48.47%
- 6M
- 43.07%
- 1Y
- 87.84%
- 3Y*
- 47.89%
- 5Y*
- 24.74%
- 10Y*
- 41.60%
BULL
- 1D
- 4.76%
- 1M
- 7.74%
- YTD
- -12.23%
- 6M
- -16.63%
- 1Y
- -37.03%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
ROM vs. BULL - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
ROM ProShares Ultra Technology | 48.47% | 86.93% |
BULL Webull Corp | -12.23% | -33.13% |
Correlation
The correlation between ROM and BULL is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.43 |
Correlation (All Time) Calculated using the full available price history since Apr 10, 2025 | 0.36 |
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Return for Risk
ROM vs. BULL — Risk / Return Rank
ROM
BULL
ROM vs. BULL - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares Ultra Technology (ROM) and Webull Corp (BULL). 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.
| ROM | BULL | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.43 | ||
| Sortino ratioReturn per unit of downside risk | +2.79 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 0.94 | +0.36 |
| Calmar ratioReturn relative to maximum drawdown | 2.71 | -0.54 | +3.25 |
| Martin ratioReturn relative to average drawdown | 7.85 | -0.79 | +8.64 |
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Drawdowns
ROM vs. BULL - Drawdown Comparison
The maximum ROM drawdown since its inception was -83.36%, smaller than the maximum BULL drawdown of -92.64%. Use the drawdown chart below to compare losses from any high point for ROM and BULL.
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Drawdown Indicators
| ROM | BULL | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -83.36% | -92.64% | +9.28% |
Max Drawdown (1Y)Largest decline over 1 year | -32.33% | -73.90% | +41.57% |
Max Drawdown (3Y)Largest decline over 3 years | -48.10% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -67.55% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -67.55% | — | — |
Current DrawdownCurrent decline from peak | -18.14% | -89.16% | +71.02% |
Average DrawdownAverage peak-to-trough decline | -20.85% | -82.80% | +61.95% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 11.15% | 50.31% | -39.16% |
Volatility
ROM vs. BULL - Volatility Comparison
ProShares Ultra Technology (ROM) has a higher volatility of 25.16% compared to Webull Corp (BULL) at 22.77%. This indicates that ROM's price experiences larger fluctuations and is considered to be riskier than BULL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ROM | BULL | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 25.16% | 22.77% | +2.39% |
Volatility (6M)Calculated over the trailing 6-month period | 39.71% | 43.60% | -3.89% |
Volatility (1Y)Calculated over the trailing 1-year period | 47.18% | 70.46% | -23.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 52.55% | 352.55% | -300.00% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 50.21% | 352.55% | -302.34% |
Dividends
ROM vs. BULL - Dividend Comparison
ROM's dividend yield for the trailing twelve months is around 0.06%, while BULL has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BULL Webull Corp | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
ROM ProShares Ultra Technology | 0.06% | 0.24% | 0.21% | 0.01% | 0.00% | 0.00% | 0.05% | 0.16% | 0.30% | 0.08% | 0.20% | 0.12% |
Frequently Asked Questions
ROM and BULL have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ROM has higher volatility (25.16%) compared to BULL (22.77%). In terms of maximum drawdown, ROM dropped -83.36% vs BULL's -92.64%.
ROM currently has the higher Sharpe Ratio (1.86 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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