STMDX vs. BOPIX

Last updated Jun 24, 2026

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

Performance

STMDX vs. BOPIX - Performance Comparison

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

Returns By Period

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

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%

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%

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

STMDX vs. BOPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
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%

Correlation

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

Return for Risk

STMDX vs. BOPIX — Risk / Return Rank

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

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

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

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.

STMDX vs. BOPIX - Risk-Adjusted Trends Comparison

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

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

STMDX vs. BOPIX - Sharpe Ratio Comparison

The current STMDX Sharpe Ratio is 0.84, which is lower than the BOPIX Sharpe Ratio of 1.62. The chart below compares the historical Sharpe Ratios of STMDX and BOPIX, 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

STMDX vs. BOPIX - Drawdown Comparison

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

Drawdown Indicators

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

Volatility

STMDX vs. BOPIX - Volatility Comparison

The current volatility for Sterling Capital Stratton Real Estate Fund (STMDX) is 5.25%, while Sterling Capital Special Opportunities Fund (BOPIX) has a volatility of 6.01%. This indicates that STMDX experiences smaller price fluctuations and is considered to be less risky than BOPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

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

STMDX vs. BOPIX - Expense Ratio Comparison

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

Dividends

STMDX vs. BOPIX - Dividend Comparison

STMDX's dividend yield for the trailing twelve months is around 5.65%, less than BOPIX's 17.44% 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 STMDX and BOPIX in my portfolio?

STMDX and BOPIX 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, STMDX or BOPIX?

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

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.