OPPJ vs. MJSC

Last updated Aug 4, 2026

OPPJ (WisdomTree Japan Opportunities ETF) and MJSC (MUFG Japan Small Cap Active ETF) are both Japan Equities funds. OPPJ is passively managed, while MJSC is actively managed. Their 0.77 correlation means they have sometimes moved together and sometimes differently. OPPJ charges 0.58%/yr vs 0.85%/yr for MJSC.

Performance

OPPJ vs. MJSC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WisdomTree Japan Opportunities ETF (OPPJ) and MUFG Japan Small Cap Active ETF (MJSC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with OPPJ having a 21.36% return and MJSC slightly higher at 21.50%.

OPPJ

• 1D: -0.35%
• 1M: -2.28%
• 6M: 11.10%
• YTD: 21.36%
• 1Y: 52.64%
• 3Y*: 31.02%
• 5Y*: 24.18%
• 10Y*: 17.17%
• ALL TIME*: 15.01%

MJSC

• 1D: 1.09%
• 1M: -2.57%
• 6M: 14.82%
• YTD: 21.50%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
MJSC MUFG Japan Small Cap Active ETF	$113.28K	$115.15K	$168.79K
OPPJ WisdomTree Japan Opportunities ETF	$2.37M	$2.34M	$4.35M

OPPJ vs. MJSC - Yearly Performance Comparison

	2026 (YTD)	2025
OPPJ WisdomTree Japan Opportunities ETF	21.36%	11.90%
MJSC MUFG Japan Small Cap Active ETF	21.50%	-0.05%

Correlation

The correlation between OPPJ and MJSC is 0.77, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (All Time) Calculated using the full available price history since Sep 17, 2025	0.77

Return for Risk

OPPJ vs. MJSC — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

OPPJ

OPPJ Risk / Return Rank: 91
OPPJ Sharpe Ratio Rank: 92
OPPJ Sortino Ratio Rank: 91
OPPJ Omega Ratio Rank: 89
OPPJ Calmar Ratio Rank: 95
OPPJ Martin Ratio Rank: 91

MJSC

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

OPPJ vs. MJSC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree Japan Opportunities ETF (OPPJ) and MUFG Japan Small Cap Active ETF (MJSC). 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.

	OPPJ	MJSC	Difference
Sharpe ratio: Return per unit of total volatility	2.50	—	—
Sortino ratio: Return per unit of downside risk	3.31	—	—
Omega ratio: Gain probability vs. loss probability	1.41	—	—
Calmar ratio: Return relative to maximum drawdown	5.38	—	—
Martin ratio: Return relative to average drawdown	15.15	—	—

Drawdowns

OPPJ vs. MJSC - Drawdown Comparison

The maximum OPPJ drawdown since its inception was -39.30%, which is greater than MJSC's maximum drawdown of -12.63%. Use the drawdown chart below to compare losses from any high point for OPPJ and MJSC.

Drawdown Indicators

	OPPJ	MJSC	Difference
Max Drawdown Largest peak-to-trough decline	-39.30%	-12.63%	-26.67%
Max Drawdown (1Y) Largest decline over 1 year	-9.82%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-16.49%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-16.49%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-39.30%	—	—
Current Drawdown Current decline from peak	-7.91%	-4.28%	-3.63%
Average Drawdown Average peak-to-trough decline	-6.48%	-3.03%	-3.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.48%	—	—

Volatility

Volatility by Period

	OPPJ	MJSC	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.79%	—	—
Volatility (6M) Calculated over the trailing 6-month period	17.52%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	21.19%	21.16%	+0.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.40%	21.16%	-2.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.61%	21.16%	-1.55%

OPPJ vs. MJSC - Expense Ratio Comparison

OPPJ has a 0.58% expense ratio, which is lower than MJSC's 0.85% expense ratio.

Dividends

OPPJ vs. MJSC - Dividend Comparison

OPPJ's dividend yield for the trailing twelve months is around 1.15%, more than MJSC's 0.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MJSC MUFG Japan Small Cap Active ETF	0.54%	0.66%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
OPPJ WisdomTree Japan Opportunities ETF	1.15%	1.78%	4.02%	2.71%	2.63%	2.96%	3.04%	2.17%	2.06%	1.53%	1.66%	3.61%

Frequently Asked Questions

Can I hold both OPPJ and MJSC in my portfolio?

OPPJ and MJSC have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, OPPJ or MJSC?

On fees, OPPJ is cheaper at 0.58% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, OPPJ or MJSC?

OPPJ is cheaper with a 0.58% expense ratio, compared with 0.85% for MJSC.

Which ETF pays a higher dividend yield, OPPJ or MJSC?

OPPJ has the higher dividend yield at 1.15%, compared with 0.54% for MJSC.

What is the main difference between OPPJ and MJSC?

They also come from different issuers: WisdomTree and MUFG. Their fees differ too: 0.58% for OPPJ and 0.85% for MJSC.