OBCHX vs. LNGZX
OBCHX (Oberweis China Opportunities Fund) and LNGZX (Columbia Greater China Fund) are both China Equities funds. Over the past 10 years, OBCHX returned 9.93%/yr vs 2.99%/yr for LNGZX. Their correlation of 0.83 suggests significant overlap in exposure. OBCHX charges 2.03%/yr vs 1.25%/yr for LNGZX.
Performance
OBCHX vs. LNGZX - Performance Comparison
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Returns By Period
In the year-to-date period, OBCHX achieves a 26.22% return, which is significantly higher than LNGZX's -11.27% return. Over the past 10 years, OBCHX has outperformed LNGZX with an annualized return of 9.93%, while LNGZX has yielded a comparatively lower 2.99% annualized return.
OBCHX
- 1D
- -2.41%
- 1M
- -5.01%
- 6M
- 15.97%
- YTD
- 26.22%
- 1Y
- 43.48%
- 3Y*
- 21.73%
- 5Y*
- 0.64%
- 10Y*
- 9.93%
LNGZX
- 1D
- -0.90%
- 1M
- -1.73%
- 6M
- -14.90%
- YTD
- -11.27%
- 1Y
- -4.79%
- 3Y*
- 3.90%
- 5Y*
- -10.78%
- 10Y*
- 2.99%
OBCHX vs. LNGZX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OBCHX Oberweis China Opportunities Fund | 26.22% | 40.89% | 7.28% | -7.70% | -37.21% | -5.16% | 57.06% | 36.32% | -25.94% | 54.99% |
LNGZX Columbia Greater China Fund | -11.27% | 27.49% | 12.29% | -18.70% | -28.42% | -25.21% | 46.04% | 32.95% | -20.01% | 59.90% |
Correlation
The correlation between OBCHX and LNGZX is 0.74, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.74 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.79 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.78 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.82 |
Correlation (All Time) Calculated using the full available price history since Oct 4, 2005 | 0.83 |
The correlation between OBCHX and LNGZX has been stable across timeframes, ranging from 0.74 to 0.83 - a consistent structural relationship.
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Return for Risk
OBCHX vs. LNGZX — Risk / Return Rank
OBCHX
LNGZX
OBCHX vs. LNGZX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Oberweis China Opportunities Fund (OBCHX) and Columbia Greater China Fund (LNGZX). 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.
| OBCHX | LNGZX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.02 | ||
| Sortino ratioReturn per unit of downside risk | +2.50 | ||
| Omega ratioGain probability vs. loss probability | 1.31 | 0.98 | +0.33 |
| Calmar ratioReturn relative to maximum drawdown | 4.57 | -0.19 | +4.76 |
| Martin ratioReturn relative to average drawdown | 10.82 | -0.40 | +11.22 |
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Drawdowns
OBCHX vs. LNGZX - Drawdown Comparison
The maximum OBCHX drawdown since its inception was -74.03%, roughly equal to the maximum LNGZX drawdown of -73.37%. Use the drawdown chart below to compare losses from any high point for OBCHX and LNGZX.
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Drawdown Indicators
| OBCHX | LNGZX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -74.03% | -73.37% | -0.66% |
Max Drawdown (1Y)Largest decline over 1 year | -9.59% | -23.54% | +13.95% |
Max Drawdown (3Y)Largest decline over 3 years | -23.88% | -26.71% | +2.83% |
Max Drawdown (5Y)Largest decline over 5 years | -51.78% | -60.59% | +8.81% |
Max Drawdown (10Y)Largest decline over 10 years | -59.47% | -67.94% | +8.47% |
Current DrawdownCurrent decline from peak | -15.86% | -53.72% | +37.86% |
Average DrawdownAverage peak-to-trough decline | -25.63% | -26.63% | +1.00% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.04% | 10.95% | -6.91% |
Volatility
OBCHX vs. LNGZX - Volatility Comparison
Oberweis China Opportunities Fund (OBCHX) has a higher volatility of 8.40% compared to Columbia Greater China Fund (LNGZX) at 6.74%. This indicates that OBCHX's price experiences larger fluctuations and is considered to be riskier than LNGZX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OBCHX | LNGZX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.40% | 6.74% | +1.66% |
Volatility (6M)Calculated over the trailing 6-month period | 18.57% | 15.87% | +2.70% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.12% | 21.53% | +2.59% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.06% | 29.99% | -2.93% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.32% | 26.58% | -1.26% |
OBCHX vs. LNGZX - Expense Ratio Comparison
OBCHX has a 2.03% expense ratio, which is higher than LNGZX's 1.25% expense ratio.
Dividends
OBCHX vs. LNGZX - Dividend Comparison
OBCHX's dividend yield for the trailing twelve months is around 0.80%, less than LNGZX's 2.12% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LNGZX Columbia Greater China Fund | 2.12% | 1.88% | 1.21% | 0.67% | 0.00% | 0.00% | 4.29% | 1.40% | 5.85% | 1.20% | 0.00% | 4.54% |
OBCHX Oberweis China Opportunities Fund | 0.80% | 1.01% | 2.16% | 0.46% | 1.22% | 41.65% | 11.50% | 3.37% | 26.11% | 6.26% | 0.81% | 11.05% |
Frequently Asked Questions
OBCHX and LNGZX have a correlation of 0.74, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
OBCHX has higher volatility (8.40%) compared to LNGZX (6.74%). In terms of maximum drawdown, OBCHX dropped -74.03% vs LNGZX's -73.37%.
OBCHX currently has the higher Sharpe Ratio (1.82 vs -0.20), 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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