BOPIX vs. STMDX

Last updated Jun 24, 2026

BOPIX (Sterling Capital Special Opportunities Fund) and STMDX (Sterling Capital Stratton Real Estate Fund) are both mutual funds - BOPIX is a Large Cap Blend Equities fund managed by Sterling Capital, while STMDX is a REIT fund managed by Sterling Capital. Over the past 10 years, BOPIX returned 13.57%/yr vs 6.71%/yr for STMDX. A 0.61 correlation means they provide meaningful diversification when combined. BOPIX charges 0.87%/yr vs 0.82%/yr for STMDX.

Performance

BOPIX vs. STMDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sterling Capital Special Opportunities Fund (BOPIX) and Sterling Capital Stratton Real Estate Fund (STMDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BOPIX achieves a 8.20% return, which is significantly lower than STMDX's 12.32% return. Over the past 10 years, BOPIX has outperformed STMDX with an annualized return of 13.57%, while STMDX has yielded a comparatively lower 6.71% annualized return.

BOPIX

• 1D: -0.87%
• 1M: 0.00%
• YTD: 8.20%
• 6M: 6.91%
• 1Y: 24.11%
• 3Y*: 18.44%
• 5Y*: 10.32%
• 10Y*: 13.57%

STMDX

• 1D: 1.24%
• 1M: -0.00%
• YTD: 12.32%
• 6M: 12.71%
• 1Y: 9.78%
• 3Y*: 10.99%
• 5Y*: 3.13%
• 10Y*: 6.71%

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

BOPIX vs. STMDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BOPIX Sterling Capital Special Opportunities Fund	8.20%	13.38%	21.00%	25.16%	-20.04%	27.75%	13.46%	35.34%	-4.54%	19.63%
STMDX Sterling Capital Stratton Real Estate Fund	12.32%	1.35%	6.25%	13.28%	-26.17%	38.53%	-0.54%	31.77%	-2.82%	7.81%

Correlation

The correlation between BOPIX and STMDX is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.17
Correlation (3Y) Calculated over the trailing 3-year period	0.41
Correlation (5Y) Calculated over the trailing 5-year period	0.56
Correlation (10Y) Calculated over the trailing 10-year period	0.53
Correlation (All Time) Calculated using the full available price history since May 30, 2003	0.61

Over the past year, the correlation between BOPIX and STMDX has dropped to 0.17 - well below their long-term average of 0.61, suggesting their price drivers have been diverging.

Return for Risk

BOPIX vs. STMDX — Risk / Return Rank

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

BOPIX

BOPIX Risk / Return Rank: 30
BOPIX Sharpe Ratio Rank: 37
BOPIX Sortino Ratio Rank: 33
BOPIX Omega Ratio Rank: 32
BOPIX Calmar Ratio Rank: 23
BOPIX Martin Ratio Rank: 25

STMDX

STMDX Risk / Return Rank: 14
STMDX Sharpe Ratio Rank: 11
STMDX Sortino Ratio Rank: 11
STMDX Omega Ratio Rank: 11
STMDX Calmar Ratio Rank: 19
STMDX Martin Ratio Rank: 16

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.

BOPIX vs. STMDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sterling Capital Special Opportunities Fund (BOPIX) and Sterling Capital Stratton Real Estate Fund (STMDX). 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.

	BOPIX	STMDX	Difference
Sharpe ratio: Return per unit of total volatility	1.62	0.84	+0.79
Sortino ratio: Return per unit of downside risk	2.22	1.20	+1.02
Omega ratio: Gain probability vs. loss probability	1.28	1.15	+0.13
Calmar ratio: Return relative to maximum drawdown	1.65	1.46	+0.19
Martin ratio: Return relative to average drawdown	5.66	4.05	+1.61

BOPIX vs. STMDX - Sharpe Ratio Comparison

The current BOPIX Sharpe Ratio is 1.62, which is higher than the STMDX Sharpe Ratio of 0.84. The chart below compares the historical Sharpe Ratios of BOPIX and STMDX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BOPIX vs. STMDX - Drawdown Comparison

The maximum BOPIX drawdown since its inception was -51.68%, smaller than the maximum STMDX drawdown of -65.12%. Use the drawdown chart below to compare losses from any high point for BOPIX and STMDX.

Drawdown Indicators

	BOPIX	STMDX	Difference
Max Drawdown Largest peak-to-trough decline	-51.68%	-65.12%	+13.44%
Max Drawdown (1Y) Largest decline over 1 year	-14.94%	-7.70%	-7.24%
Max Drawdown (3Y) Largest decline over 3 years	-21.69%	-16.98%	-4.71%
Max Drawdown (5Y) Largest decline over 5 years	-25.02%	-33.43%	+8.41%
Max Drawdown (10Y) Largest decline over 10 years	-38.76%	-40.52%	+1.76%
Current Drawdown Current decline from peak	-4.41%	-1.69%	-2.72%
Average Drawdown Average peak-to-trough decline	-6.07%	-10.08%	+4.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.35%	2.78%	+1.57%

Volatility

BOPIX vs. STMDX - Volatility Comparison

Sterling Capital Special Opportunities Fund (BOPIX) has a higher volatility of 6.01% compared to Sterling Capital Stratton Real Estate Fund (STMDX) at 5.25%. This indicates that BOPIX's price experiences larger fluctuations and is considered to be riskier than STMDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BOPIX	STMDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.01%	5.25%	+0.76%
Volatility (6M) Calculated over the trailing 6-month period	12.25%	10.03%	+2.22%
Volatility (1Y) Calculated over the trailing 1-year period	15.22%	13.50%	+1.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.72%	18.77%	-0.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.40%	20.46%	-1.06%

BOPIX vs. STMDX - Expense Ratio Comparison

BOPIX has a 0.87% expense ratio, which is higher than STMDX's 0.82% expense ratio.

Dividends

BOPIX vs. STMDX - Dividend Comparison

BOPIX's dividend yield for the trailing twelve months is around 17.44%, more than STMDX's 5.65% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BOPIX Sterling Capital Special Opportunities Fund	17.44%	18.87%	16.95%	17.90%	7.84%	12.03%	1.24%	10.09%	9.17%	7.89%	1.88%	15.18%
STMDX Sterling Capital Stratton Real Estate Fund	5.65%	6.24%	7.14%	8.39%	8.29%	7.14%	4.05%	9.15%	5.92%	4.80%	7.98%	2.96%

Frequently Asked Questions

Can I hold both BOPIX and STMDX in my portfolio?

BOPIX and STMDX have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BOPIX or STMDX?

BOPIX has higher volatility (6.01%) compared to STMDX (5.25%). In terms of maximum drawdown, BOPIX dropped -51.68% vs STMDX's -65.12%.

Which has better risk-adjusted returns?

BOPIX currently has the higher Sharpe Ratio (1.62 vs 0.84), 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.