DIG vs. KORU

Last updated Apr 2, 2026

Compare and contrast key facts about ProShares Ultra Oil & Gas (DIG) and Direxion Daily South Korea Bull 3X Shares (KORU).

DIG and KORU are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. DIG is a passively managed fund by ProShares that tracks the performance of the Dow Jones U.S. Oil & Gas Index (200%). It was launched on Jan 30, 2007. KORU is a passively managed fund by Direxion that tracks the performance of the MSCI Korea 25-50 Index. It was launched on Apr 10, 2013. Both DIG and KORU are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

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.

DIG vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DIG ProShares Ultra Oil & Gas	71.38%	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	68.52%	432.73%	-62.18%	28.61%	-70.16%	-33.86%	48.78%	5.47%	-59.89%	167.08%

Returns By Period

The year-to-date returns for both stocks are quite close, with DIG having a 71.38% return and KORU slightly lower at 68.52%. Over the past 10 years, DIG has outperformed KORU with an annualized return of 7.37%, while KORU has yielded a comparatively lower 3.68% annualized return.

DIG

• 1D: -7.64%
• 1M: 7.25%
• YTD: 71.38%
• 6M: 70.78%
• 1Y: 47.64%
• 3Y*: 20.73%
• 5Y*: 34.16%
• 10Y*: 7.37%

KORU

• 1D: 7.69%
• 1M: -47.68%
• YTD: 68.52%
• 6M: 174.68%
• 1Y: 673.62%
• 3Y*: 54.87%
• 5Y*: -4.56%
• 10Y*: 3.68%

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

DIG vs. KORU - Expense Ratio Comparison

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

KORU

Direxion Daily South Korea Bull 3X Shares

DIG

ProShares Ultra Oil & Gas

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: 47
DIG Sharpe Ratio Rank: 51
DIG Sortino Ratio Rank: 50
DIG Omega Ratio Rank: 52
DIG Calmar Ratio Rank: 51
DIG Martin Ratio Rank: 31

KORU

KORU Risk / Return Rank: 98
KORU Sharpe Ratio Rank: 99
KORU Sortino Ratio Rank: 97
KORU Omega Ratio Rank: 96
KORU Calmar Ratio Rank: 99
KORU Martin Ratio Rank: 98

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	0.96	6.40	-5.44
Sortino ratio Return per unit of downside risk	1.41	3.79	-2.39
Omega ratio Gain probability vs. loss probability	1.21	1.54	-0.33
Calmar ratio Return relative to maximum drawdown	1.40	11.58	-10.19
Martin ratio Return relative to average drawdown	2.86	41.52	-38.67
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 0.96, which is lower than the KORU Sharpe Ratio of 6.40. The chart below compares the historical Sharpe Ratios of DIG and KORU, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	DIG	KORU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.96	6.40	-5.44
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.66	-0.06	+0.72
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.13	0.05	+0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.00	-0.02	+0.02

Correlation

The correlation between DIG and KORU is 0.37, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

DIG vs. KORU - Dividend Comparison

DIG's dividend yield for the trailing twelve months is around 1.45%, more than KORU's 0.55% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIG ProShares Ultra Oil & Gas	1.45%	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	0.55%	0.89%	4.10%	2.55%	0.48%	0.76%	0.01%	0.93%	1.40%	3.59%	0.00%	0.00%

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	-35.40%	-61.39%	+25.99%
Max Drawdown (5Y) Largest decline over 5 years	-46.02%	-93.54%	+47.52%
Max Drawdown (10Y) Largest decline over 10 years	-92.53%	-95.79%	+3.26%
Current Drawdown Current decline from peak	-49.79%	-53.60%	+3.81%
Average Drawdown Average peak-to-trough decline	-64.47%	-58.03%	-6.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	17.32%	17.13%	+0.19%

Volatility

DIG vs. KORU - Volatility Comparison

The current volatility for ProShares Ultra Oil & Gas (DIG) is 12.95%, while Direxion Daily South Korea Bull 3X Shares (KORU) has a volatility of 59.12%. 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	12.95%	59.12%	-46.17%
Volatility (6M) Calculated over the trailing 6-month period	28.78%	93.35%	-64.57%
Volatility (1Y) Calculated over the trailing 1-year period	49.96%	106.33%	-56.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	51.73%	78.49%	-26.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	57.63%	76.33%	-18.70%