DIG vs. KORU

Last updated Jun 4, 2026

DIG (ProShares Ultra Oil & Gas) and KORU (Direxion Daily South Korea Bull 3X Shares) are both Leveraged Equities funds - DIG tracks the Dow Jones U.S. Oil & Gas Index (200%) while KORU tracks the MSCI Korea 25-50 Index. Both are passively managed. Over the past 10 years, DIG returned 5.32%/yr vs 19.62%/yr for KORU. At a 0.36 correlation, their price movements are largely independent. DIG charges 0.95%/yr vs 1.29%/yr for KORU.

Performance

DIG vs. KORU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares Ultra Oil & Gas (DIG) and Direxion Daily South Korea Bull 3X Shares (KORU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DIG achieves a 66.35% return, which is significantly lower than KORU's 559.14% return. Over the past 10 years, DIG has underperformed KORU with an annualized return of 5.32%, while KORU has yielded a comparatively higher 19.62% annualized return.

DIG

• 1D: 2.57%
• 1M: -3.48%
• YTD: 66.35%
• 6M: 59.45%
• 1Y: 90.00%
• 3Y*: 23.37%
• 5Y*: 28.29%
• 10Y*: 5.32%

KORU

• 1D: -2.29%
• 1M: 92.47%
• YTD: 559.14%
• 6M: 689.29%
• 1Y: 2,160.10%
• 3Y*: 132.56%
• 5Y*: 23.42%
• 10Y*: 19.62%

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

DIG vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DIG ProShares Ultra Oil & Gas	66.35%	2.73%	0.93%	-13.04%	125.34%	115.63%	-70.36%	12.51%	-40.11%	-7.39%
KORU Direxion Daily South Korea Bull 3X Shares	559.14%	432.73%	-62.18%	28.61%	-70.16%	-33.86%	48.78%	5.47%	-59.89%	167.08%

Correlation

The correlation between DIG and KORU is -0.00, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.00
Correlation (3Y) Calculated over the trailing 3-year period	0.12
Correlation (5Y) Calculated over the trailing 5-year period	0.23
Correlation (10Y) Calculated over the trailing 10-year period	0.33
Correlation (All Time) Calculated using the full available price history since Apr 11, 2013	0.36

The correlation between DIG and KORU shifts across timeframes, from -0.00 (1 year) to 0.36 (all time), reflecting how their relationship changes across market environments.

DIG vs. KORU - Sectors Allocation Comparison

Sectors	DIG	KORU
Energy	61.8%	1.4%
Financial Services	6.0%	16.7%
Basic Materials	-	2.0%
Communication Services	-	2.9%
Consumer Cyclical	-	5.8%
Consumer Defensive	-	1.8%
Healthcare	-	3.5%
Industrials	-	20.4%
Real Estate	-	-
Technology	-	52.3%
Utilities	-	0.4%

Return for Risk

DIG vs. KORU — Risk / Return Rank

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

DIG

DIG Risk / Return Rank: 61
DIG Sharpe Ratio Rank: 66
DIG Sortino Ratio Rank: 53
DIG Omega Ratio Rank: 52
DIG Calmar Ratio Rank: 76
DIG Martin Ratio Rank: 59

KORU

KORU Risk / Return Rank: 97
KORU Sharpe Ratio Rank: 100
KORU Sortino Ratio Rank: 95
KORU Omega Ratio Rank: 95
KORU Calmar Ratio Rank: 99
KORU Martin Ratio Rank: 99

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.

DIG vs. KORU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares Ultra Oil & Gas (DIG) and Direxion Daily South Korea Bull 3X Shares (KORU). 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.

	DIG	KORU	Difference
Sharpe ratio: Return per unit of total volatility	2.22	17.63	-15.41
Sortino ratio: Return per unit of downside risk	2.61	5.20	-2.59
Omega ratio: Gain probability vs. loss probability	1.33	1.72	-0.40
Calmar ratio: Return relative to maximum drawdown	3.89	35.65	-31.76
Martin ratio: Return relative to average drawdown	10.65	112.99	-102.34
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DIG vs. KORU - Sharpe Ratio Comparison

The current DIG Sharpe Ratio is 2.22, which is lower than the KORU Sharpe Ratio of 17.63. The chart below compares the historical Sharpe Ratios of DIG and KORU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	DIG	KORU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.22	17.63	-15.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.55	0.28	+0.27
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.09	0.25	-0.15
Sharpe Ratio (All Time) Calculated using the full available price history	-0.00	0.13	-0.13

Drawdowns

DIG vs. KORU - Drawdown Comparison

The maximum DIG drawdown since its inception was -97.04%, roughly equal to the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for DIG and KORU.

Drawdown Indicators

	DIG	KORU	Difference
Max Drawdown Largest peak-to-trough decline	-97.04%	-95.79%	-1.25%
Max Drawdown (1Y) Largest decline over 1 year	-23.29%	-61.39%	+38.10%
Max Drawdown (3Y) Largest decline over 3 years	-42.41%	-73.71%	+31.30%
Max Drawdown (5Y) Largest decline over 5 years	-46.02%	-93.35%	+47.33%
Max Drawdown (10Y) Largest decline over 10 years	-92.53%	-95.79%	+3.26%
Current Drawdown Current decline from peak	-51.27%	-5.39%	-45.88%
Average Drawdown Average peak-to-trough decline	-64.37%	-57.53%	-6.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.49%	19.33%	-10.84%

Volatility

DIG vs. KORU - Volatility Comparison

The current volatility for ProShares Ultra Oil & Gas (DIG) is 16.56%, while Direxion Daily South Korea Bull 3X Shares (KORU) has a volatility of 60.18%. This indicates that DIG experiences smaller price fluctuations and is considered to be less risky than KORU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DIG	KORU	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.56%	60.18%	-43.62%
Volatility (6M) Calculated over the trailing 6-month period	33.14%	110.71%	-77.57%
Volatility (1Y) Calculated over the trailing 1-year period	40.88%	124.15%	-83.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	51.59%	85.11%	-33.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	57.81%	79.91%	-22.10%

DIG vs. KORU - Expense Ratio Comparison

DIG has a 0.95% expense ratio, which is lower than KORU's 1.29% expense ratio.

Dividends

DIG vs. KORU - Dividend Comparison

DIG's dividend yield for the trailing twelve months is around 1.50%, more than KORU's 0.14% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIG ProShares Ultra Oil & Gas	1.50%	2.62%	3.13%	0.61%	1.33%	2.24%	3.18%	2.72%	2.30%	1.76%	1.09%	1.56%
KORU Direxion Daily South Korea Bull 3X Shares	0.14%	0.89%	4.10%	2.55%	0.48%	0.76%	0.01%	0.93%	1.40%	3.59%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DIG and KORU in my portfolio?

DIG and KORU have a correlation of -0.00, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DIG or KORU?

KORU has higher volatility (60.18%) compared to DIG (16.56%). In terms of maximum drawdown, DIG dropped -97.04% vs KORU's -95.79%.

Which ETF is better, DIG or KORU?

On 10-year performance, KORU leads with 19.62% vs 5.32% for DIG. On fees, DIG is cheaper at 0.95% per year. On volatility, DIG has been the lower-risk option at 16.56%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, DIG or KORU?

Over the 10-year period, KORU has performed better with a 19.62% return vs 5.32%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, DIG or KORU?

DIG is cheaper with a 0.95% expense ratio, compared with 1.29% for KORU.

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

DIG has the higher dividend yield at 1.50%, compared with 0.14% for KORU.

What is the main difference between DIG and KORU?

DIG tracks Dow Jones U.S. Oil & Gas Index (200%), while KORU tracks MSCI Korea 25-50 Index. They also come from different issuers: ProShares and Direxion. Their fees differ too: 0.95% for DIG and 1.29% for KORU.

Which has better risk-adjusted returns?

KORU currently has the higher Sharpe Ratio (17.63 vs 2.22), 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.