OPPJ vs. NTSX
OPPJ (WisdomTree Japan Opportunities ETF) and NTSX (WisdomTree U.S. Efficient Core Fund) are both exchange-traded funds - OPPJ is a Japan Equities fund tracking the WisdomTree Japan Opportunities Index, while NTSX is a Diversified Portfolio fund actively managed by WisdomTree. OPPJ is passively managed, while NTSX is actively managed. Over the past 5 years, OPPJ returned 24.18%/yr vs 8.42%/yr for NTSX. Their 0.47 correlation means their historical movements had little consistent relationship. OPPJ charges 0.58%/yr vs 0.20%/yr for NTSX.
Performance
OPPJ vs. NTSX - Performance Comparison
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Returns By Period
In the year-to-date period, OPPJ achieves a 21.36% return, which is significantly higher than NTSX's 8.99% return.
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%
NTSX
- 1D
- 1.59%
- 1M
- 1.07%
- 6M
- 7.46%
- YTD
- 8.99%
- 1Y
- 19.38%
- 3Y*
- 18.54%
- 5Y*
- 8.42%
- 10Y*
- —
- ALL TIME*
- 12.84%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $1.98M | $1.82M | $2.61M | |
| $2.37M | $2.34M | $4.35M |
OPPJ vs. NTSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
OPPJ WisdomTree Japan Opportunities ETF | 21.36% | 37.08% | 20.70% | 38.96% | 5.02% | 11.66% | -3.22% | 18.24% | -16.99% |
NTSX WisdomTree U.S. Efficient Core Fund | 8.99% | 18.82% | 20.20% | 22.70% | -25.84% | 22.21% | 24.87% | 32.03% | -7.87% |
Correlation
The correlation between OPPJ and NTSX is 0.41, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.41 |
Correlation (3Y) Balances recent behavior with more history. | 0.36 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.40 |
Correlation (All Time) Calculated using the full available price history since Aug 2, 2018 | 0.47 |
The correlation between OPPJ and NTSX shifts across timeframes, from 0.36 (3 years) to 0.47 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
OPPJ vs. NTSX — Risk / Return Rank
OPPJ
NTSX
OPPJ vs. NTSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for WisdomTree Japan Opportunities ETF (OPPJ) and WisdomTree U.S. Efficient Core Fund (NTSX). 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 | NTSX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.04 | ||
| Sortino ratioReturn per unit of downside risk | +1.29 | ||
| Omega ratioGain probability vs. loss probability | 1.41 | 1.26 | +0.15 |
| Calmar ratioReturn relative to maximum drawdown | 5.38 | 2.12 | +3.26 |
| Martin ratioReturn relative to average drawdown | 15.15 | 8.61 | +6.54 |
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Drawdowns
OPPJ vs. NTSX - Drawdown Comparison
The maximum OPPJ drawdown since its inception was -39.30%, which is greater than NTSX's maximum drawdown of -31.34%. Use the drawdown chart below to compare losses from any high point for OPPJ and NTSX.
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Drawdown Indicators
| OPPJ | NTSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -39.30% | -31.34% | -7.96% |
Max Drawdown (1Y)Largest decline over 1 year | -9.82% | -9.16% | -0.66% |
Max Drawdown (3Y)Largest decline over 3 years | -16.49% | -16.82% | +0.33% |
Max Drawdown (5Y)Largest decline over 5 years | -16.49% | -31.34% | +14.85% |
Max Drawdown (10Y)Largest decline over 10 years | -39.30% | — | — |
Current DrawdownCurrent decline from peak | -7.91% | -0.71% | -7.20% |
Average DrawdownAverage peak-to-trough decline | -6.48% | -6.69% | +0.21% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.48% | 2.26% | +1.22% |
Volatility
OPPJ vs. NTSX - Volatility Comparison
WisdomTree Japan Opportunities ETF (OPPJ) has a higher volatility of 7.79% compared to WisdomTree U.S. Efficient Core Fund (NTSX) at 4.14%. This indicates that OPPJ's price experiences larger fluctuations and is considered to be riskier than NTSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OPPJ | NTSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.79% | 4.14% | +3.65% |
Volatility (6M)Calculated over the trailing 6-month period | 17.52% | 10.85% | +6.67% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.19% | 13.35% | +7.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.40% | 17.22% | +1.18% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.61% | 18.23% | +1.38% |
OPPJ vs. NTSX - Expense Ratio Comparison
OPPJ has a 0.58% expense ratio, which is higher than NTSX's 0.20% expense ratio.
Dividends
OPPJ vs. NTSX - Dividend Comparison
OPPJ's dividend yield for the trailing twelve months is around 1.15%, more than NTSX's 1.08% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
NTSX WisdomTree U.S. Efficient Core Fund | 1.08% | 1.14% | 1.14% | 1.21% | 1.36% | 0.82% | 0.92% | 1.42% | 0.62% | 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
OPPJ and NTSX have a correlation of 0.41, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
OPPJ has higher volatility (7.79%) compared to NTSX (4.14%). In terms of maximum drawdown, OPPJ dropped -39.30% vs NTSX's -31.34%.
On 5-year performance, OPPJ leads with 24.18% vs 8.42% for NTSX. On fees, NTSX is cheaper at 0.20% per year. On volatility, NTSX has been the lower-risk option at 4.14%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, OPPJ has performed better with a 24.18% return vs 8.42%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
NTSX is cheaper with a 0.20% expense ratio, compared with 0.58% for OPPJ.
OPPJ has the higher dividend yield at 1.15%, compared with 1.08% for NTSX.
OPPJ is categorized as Japan Equities, while NTSX is Diversified Portfolio. Their fees differ too: 0.58% for OPPJ and 0.20% for NTSX.
OPPJ currently has the higher Sharpe Ratio (2.50 vs 1.46), 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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