RBLU vs. DIG

Last updated Jul 17, 2026

RBLU (T-Rex 2X Long RBLX Daily Target ETF) and DIG (ProShares Ultra Oil & Gas) are both Leveraged Equities funds - RBLU tracks the Roblox Corp. Class A (RBLX) while DIG tracks the Dow Jones U.S. Oil & Gas Index (200%). Both are passively managed. Over the past year, RBLU returned -89.20% vs 68.08% for DIG. At a correlation of -0.07, they often move in opposite directions. RBLU charges 1.05%/yr vs 0.95%/yr for DIG.

Performance

RBLU vs. DIG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T-Rex 2X Long RBLX Daily Target ETF (RBLU) and ProShares Ultra Oil & Gas (DIG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RBLU achieves a -70.52% return, which is significantly lower than DIG's 57.02% return.

RBLU

• 1D: -10.80%
• 1M: 13.03%
• 6M: -72.41%
• YTD: -70.52%
• 1Y: -89.20%
• 3Y*: —
• 5Y*: —
• 10Y*: —

DIG

• 1D: 1.92%
• 1M: 6.49%
• 6M: 39.50%
• YTD: 57.02%
• 1Y: 68.08%
• 3Y*: 19.43%
• 5Y*: 33.20%
• 10Y*: 3.82%

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

RBLU vs. DIG - Yearly Performance Comparison

	2026 (YTD)	2025
RBLU T-Rex 2X Long RBLX Daily Target ETF	-70.52%	23.90%
DIG ProShares Ultra Oil & Gas	57.02%	-0.42%

Correlation

The correlation between RBLU and DIG is -0.17, 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	-0.17
Correlation (All Time) Calculated using the full available price history since Mar 4, 2025	-0.07

Return for Risk

RBLU vs. DIG — Risk / Return Rank

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

RBLU

RBLU Risk / Return Rank: 2
RBLU Sharpe Ratio Rank: 4
RBLU Sortino Ratio Rank: 2
RBLU Omega Ratio Rank: 2
RBLU Calmar Ratio Rank: 1
RBLU Martin Ratio Rank: 3

DIG

DIG Risk / Return Rank: 53
DIG Sharpe Ratio Rank: 62
DIG Sortino Ratio Rank: 53
DIG Omega Ratio Rank: 50
DIG Calmar Ratio Rank: 57
DIG Martin Ratio Rank: 45

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.

RBLU vs. DIG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T-Rex 2X Long RBLX Daily Target ETF (RBLU) and ProShares Ultra Oil & Gas (DIG). 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.

	RBLU	DIG	Difference
Sharpe ratio: Return per unit of total volatility	-0.71	1.64	-2.34
Sortino ratio: Return per unit of downside risk	-1.46	2.10	-3.56
Omega ratio: Gain probability vs. loss probability	0.82	1.26	-0.44
Calmar ratio: Return relative to maximum drawdown	-0.94	2.30	-3.24
Martin ratio: Return relative to average drawdown	-1.29	5.96	-7.24

RBLU vs. DIG - Sharpe Ratio Comparison

The current RBLU Sharpe Ratio is -0.71, which is lower than the DIG Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of RBLU and DIG, 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

RBLU vs. DIG - Drawdown Comparison

The maximum RBLU drawdown since its inception was -94.76%, roughly equal to the maximum DIG drawdown of -97.04%. Use the drawdown chart below to compare losses from any high point for RBLU and DIG.

Drawdown Indicators

	RBLU	DIG	Difference
Max Drawdown Largest peak-to-trough decline	-94.76%	-97.04%	+2.28%
Max Drawdown (1Y) Largest decline over 1 year	-94.76%	-29.80%	-64.96%
Max Drawdown (3Y) Largest decline over 3 years	—	-42.41%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-46.02%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-92.53%	—
Current Drawdown Current decline from peak	-91.77%	-54.00%	-37.77%
Average Drawdown Average peak-to-trough decline	-46.95%	-64.31%	+17.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	69.22%	11.46%	+57.76%

Volatility

RBLU vs. DIG - Volatility Comparison

T-Rex 2X Long RBLX Daily Target ETF (RBLU) has a higher volatility of 45.36% compared to ProShares Ultra Oil & Gas (DIG) at 12.34%. This indicates that RBLU's price experiences larger fluctuations and is considered to be riskier than DIG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RBLU	DIG	Difference
Volatility (1M) Calculated over the trailing 1-month period	45.36%	12.34%	+33.02%
Volatility (6M) Calculated over the trailing 6-month period	105.21%	33.38%	+71.83%
Volatility (1Y) Calculated over the trailing 1-year period	127.25%	41.89%	+85.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	120.08%	51.35%	+68.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	120.08%	57.79%	+62.29%

RBLU vs. DIG - Expense Ratio Comparison

RBLU has a 1.05% expense ratio, which is higher than DIG's 0.95% expense ratio.

Dividends

RBLU vs. DIG - Dividend Comparison

RBLU's dividend yield for the trailing twelve months is around 4.39%, more than DIG's 1.58% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIG ProShares Ultra Oil & Gas	1.58%	2.62%	3.13%	0.61%	1.33%	2.24%	3.18%	2.72%	2.30%	1.76%	1.09%	1.56%
RBLU T-Rex 2X Long RBLX Daily Target ETF	4.39%	1.29%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both RBLU and DIG in my portfolio?

RBLU and DIG have a correlation of -0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RBLU or DIG?

RBLU has higher volatility (45.36%) compared to DIG (12.34%). In terms of maximum drawdown, RBLU dropped -94.76% vs DIG's -97.04%.

Which ETF is better, RBLU or DIG?

On 1-year performance, DIG leads with 68.08% vs -89.20% for RBLU. On fees, DIG is cheaper at 0.95% per year. On volatility, DIG has been the lower-risk option at 12.34%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RBLU or DIG?

Over the 1-year period, DIG has performed better with a 68.08% return vs -89.20%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RBLU or DIG?

DIG is cheaper with a 0.95% expense ratio, compared with 1.05% for RBLU.

Which ETF pays a higher dividend yield, RBLU or DIG?

RBLU has the higher dividend yield at 4.39%, compared with 1.58% for DIG.

What is the main difference between RBLU and DIG?

RBLU tracks Roblox Corp. Class A (RBLX), while DIG tracks Dow Jones U.S. Oil & Gas Index (200%). They also come from different issuers: T-Rex and ProShares. Their fees differ too: 1.05% for RBLU and 0.95% for DIG.

Which has better risk-adjusted returns?

DIG currently has the higher Sharpe Ratio (1.64 vs -0.71), 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.