BSMIX vs. DMLP

Last updated Apr 1, 2026

Compare and contrast key facts about iShares Russell Small/Mid-Cap Index Fund (BSMIX) and Dorchester Minerals, L.P. (DMLP).

BSMIX is managed by BlackRock. It was launched on Aug 13, 2015.

Performance

BSMIX vs. DMLP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell Small/Mid-Cap Index Fund (BSMIX) and Dorchester Minerals, L.P. (DMLP). The values are adjusted to include any dividend payments, if applicable.

BSMIX vs. DMLP - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BSMIX iShares Russell Small/Mid-Cap Index Fund	-1.37%	11.92%	12.04%	17.15%	-18.39%	18.00%	20.28%	27.62%	-10.22%	16.75%
DMLP Dorchester Minerals, L.P.	24.91%	-25.92%	16.59%	18.99%	71.68%	98.93%	-37.39%	48.52%	6.12%	-6.93%

Returns By Period

In the year-to-date period, BSMIX achieves a -1.37% return, which is significantly lower than DMLP's 24.91% return. Over the past 10 years, BSMIX has underperformed DMLP with an annualized return of 10.11%, while DMLP has yielded a comparatively higher 20.98% annualized return.

BSMIX

• 1D: -1.26%
• 1M: -8.33%
• YTD: -1.37%
• 6M: 0.85%
• 1Y: 19.40%
• 3Y*: 11.90%
• 5Y*: 4.70%
• 10Y*: 10.11%

DMLP

• 1D: -2.80%
• 1M: 4.27%
• YTD: 24.91%
• 6M: 10.91%
• 1Y: 0.12%
• 3Y*: 7.23%
• 5Y*: 27.02%
• 10Y*: 20.98%

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

Return for Risk

BSMIX vs. DMLP — Risk / Return Rank

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

BSMIX

BSMIX Risk / Return Rank: 47
BSMIX Sharpe Ratio Rank: 44
BSMIX Sortino Ratio Rank: 48
BSMIX Omega Ratio Rank: 42
BSMIX Calmar Ratio Rank: 49
BSMIX Martin Ratio Rank: 53

DMLP

DMLP Risk / Return Rank: 39
DMLP Sharpe Ratio Rank: 42
DMLP Sortino Ratio Rank: 35
DMLP Omega Ratio Rank: 34
DMLP Calmar Ratio Rank: 42
DMLP Martin Ratio Rank: 42

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.

BSMIX vs. DMLP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell Small/Mid-Cap Index Fund (BSMIX) and Dorchester Minerals, L.P. (DMLP). 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.

	BSMIX	DMLP	Difference
Sharpe ratio Return per unit of total volatility	0.88	0.00	+0.88
Sortino ratio Return per unit of downside risk	1.36	0.18	+1.17
Omega ratio Gain probability vs. loss probability	1.18	1.02	+0.16
Calmar ratio Return relative to maximum drawdown	1.19	0.01	+1.18
Martin ratio Return relative to average drawdown	5.17	0.02	+5.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BSMIX vs. DMLP - Sharpe Ratio Comparison

The current BSMIX Sharpe Ratio is 0.88, which is higher than the DMLP Sharpe Ratio of 0.00. The chart below compares the historical Sharpe Ratios of BSMIX and DMLP, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	BSMIX	DMLP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.88	0.00	+0.88
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.22	0.90	-0.68
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.47	0.65	-0.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.37	+0.10

Correlation

The correlation between BSMIX and DMLP is 0.30, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

BSMIX vs. DMLP - Dividend Comparison

BSMIX's dividend yield for the trailing twelve months is around 2.94%, less than DMLP's 10.30% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BSMIX iShares Russell Small/Mid-Cap Index Fund	2.94%	2.90%	2.04%	1.37%	4.94%	4.77%	4.42%	2.83%	4.33%	2.83%	1.45%	0.00%
DMLP Dorchester Minerals, L.P.	10.30%	12.41%	10.46%	10.67%	11.68%	7.75%	12.75%	10.32%	11.87%	7.60%	4.88%	11.67%

Drawdowns

BSMIX vs. DMLP - Drawdown Comparison

The maximum BSMIX drawdown since its inception was -41.32%, smaller than the maximum DMLP drawdown of -72.35%. Use the drawdown chart below to compare losses from any high point for BSMIX and DMLP.

Drawdown Indicators

	BSMIX	DMLP	Difference
Max Drawdown Largest peak-to-trough decline	-41.32%	-72.35%	+31.03%
Max Drawdown (1Y) Largest decline over 1 year	-14.24%	-24.52%	+10.28%
Max Drawdown (5Y) Largest decline over 5 years	-28.33%	-32.31%	+3.98%
Max Drawdown (10Y) Largest decline over 10 years	-41.32%	-56.80%	+15.48%
Current Drawdown Current decline from peak	-9.39%	-11.07%	+1.68%
Average Drawdown Average peak-to-trough decline	-7.52%	-19.91%	+12.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.29%	12.28%	-8.99%

Volatility

BSMIX vs. DMLP - Volatility Comparison

iShares Russell Small/Mid-Cap Index Fund (BSMIX) has a higher volatility of 6.35% compared to Dorchester Minerals, L.P. (DMLP) at 6.04%. This indicates that BSMIX's price experiences larger fluctuations and is considered to be riskier than DMLP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BSMIX	DMLP	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.35%	6.04%	+0.31%
Volatility (6M) Calculated over the trailing 6-month period	12.71%	17.67%	-4.96%
Volatility (1Y) Calculated over the trailing 1-year period	21.93%	24.39%	-2.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.10%	30.13%	-9.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.63%	32.22%	-10.59%