MSOS vs. RB

Last updated Jul 17, 2026

MSOS (AdvisorShares Pure US Cannabis ETF) and RB (ProShares Russell 2000 Dynamic Daily Buffer ETF) are both exchange-traded funds - MSOS is a Small Cap Blend Equities fund actively managed by AdvisorShares, while RB is a Defined Outcome fund tracking the Russell 2000. MSOS is actively managed, while RB is passively managed. Over the past year, MSOS returned 73.02% vs 18.24% for RB. At a 0.22 correlation, their price movements are largely independent. MSOS charges 0.74%/yr vs 0.58%/yr for RB.

Performance

MSOS vs. RB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AdvisorShares Pure US Cannabis ETF (MSOS) and ProShares Russell 2000 Dynamic Daily Buffer ETF (RB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MSOS achieves a -7.63% return, which is significantly lower than RB's 7.90% return.

MSOS

• 1D: -4.39%
• 1M: -9.73%
• 6M: -10.84%
• YTD: -7.63%
• 1Y: 73.02%
• 3Y*: -8.55%
• 5Y*: -34.91%
• 10Y*: —

RB

• 1D: -0.15%
• 1M: 1.02%
• 6M: 5.39%
• YTD: 7.90%
• 1Y: 18.24%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MSOS vs. RB - Yearly Performance Comparison

	2026 (YTD)	2025
MSOS AdvisorShares Pure US Cannabis ETF	-7.63%	103.45%
RB ProShares Russell 2000 Dynamic Daily Buffer ETF	7.90%	10.85%

Correlation

The correlation between MSOS and RB is 0.21, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.21
Correlation (All Time) Calculated using the full available price history since Jun 26, 2025	0.22

Return for Risk

MSOS vs. RB — Risk / Return Rank

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

MSOS

MSOS Risk / Return Rank: 32
MSOS Sharpe Ratio Rank: 23
MSOS Sortino Ratio Rank: 42
MSOS Omega Ratio Rank: 37
MSOS Calmar Ratio Rank: 33
MSOS Martin Ratio Rank: 25

RB

RB Risk / Return Rank: 96
RB Sharpe Ratio Rank: 94
RB Sortino Ratio Rank: 96
RB Omega Ratio Rank: 95
RB Calmar Ratio Rank: 97
RB Martin Ratio Rank: 96

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.

MSOS vs. RB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AdvisorShares Pure US Cannabis ETF (MSOS) and ProShares Russell 2000 Dynamic Daily Buffer ETF (RB). 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.

	MSOS	RB	Difference
Sharpe ratio: Return per unit of total volatility	0.65	2.79	-2.14
Sortino ratio: Return per unit of downside risk	1.80	4.74	-2.94
Omega ratio: Gain probability vs. loss probability	1.21	1.61	-0.40
Calmar ratio: Return relative to maximum drawdown	1.39	8.77	-7.38
Martin ratio: Return relative to average drawdown	2.50	28.21	-25.70

MSOS vs. RB - Sharpe Ratio Comparison

The current MSOS Sharpe Ratio is 0.65, which is lower than the RB Sharpe Ratio of 2.79. The chart below compares the historical Sharpe Ratios of MSOS and RB, 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

MSOS vs. RB - Drawdown Comparison

The maximum MSOS drawdown since its inception was -96.25%, which is greater than RB's maximum drawdown of -2.09%. Use the drawdown chart below to compare losses from any high point for MSOS and RB.

Drawdown Indicators

	MSOS	RB	Difference
Max Drawdown Largest peak-to-trough decline	-96.25%	-2.09%	-94.16%
Max Drawdown (1Y) Largest decline over 1 year	-52.91%	-2.09%	-50.82%
Max Drawdown (3Y) Largest decline over 3 years	-81.71%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-94.49%	—	—
Current Drawdown Current decline from peak	-92.06%	-0.54%	-91.52%
Average Drawdown Average peak-to-trough decline	-72.08%	-0.44%	-71.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	29.25%	0.65%	+28.60%

Volatility

MSOS vs. RB - Volatility Comparison

AdvisorShares Pure US Cannabis ETF (MSOS) has a higher volatility of 16.96% compared to ProShares Russell 2000 Dynamic Daily Buffer ETF (RB) at 1.54%. This indicates that MSOS's price experiences larger fluctuations and is considered to be riskier than RB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MSOS	RB	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.96%	1.54%	+15.42%
Volatility (6M) Calculated over the trailing 6-month period	57.02%	4.74%	+52.28%
Volatility (1Y) Calculated over the trailing 1-year period	112.25%	6.57%	+105.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	78.35%	6.46%	+71.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	73.82%	6.46%	+67.36%

MSOS vs. RB - Expense Ratio Comparison

MSOS has a 0.74% expense ratio, which is higher than RB's 0.58% expense ratio.

Dividends

MSOS vs. RB - Dividend Comparison

MSOS has not paid dividends to shareholders, while RB's dividend yield for the trailing twelve months is around 2.27%.

Position	TTM	2025	2024	2023	2022	2021
MSOS AdvisorShares Pure US Cannabis ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.27%
RB ProShares Russell 2000 Dynamic Daily Buffer ETF	2.27%	1.78%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MSOS and RB in my portfolio?

MSOS and RB have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MSOS or RB?

MSOS has higher volatility (16.96%) compared to RB (1.54%). In terms of maximum drawdown, MSOS dropped -96.25% vs RB's -2.09%.

Which ETF is better, MSOS or RB?

On 1-year performance, MSOS leads with 73.02% vs 18.24% for RB. On fees, RB is cheaper at 0.58% per year. On volatility, RB has been the lower-risk option at 1.54%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MSOS or RB?

Over the 1-year period, MSOS has performed better with a 73.02% return vs 18.24%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MSOS or RB?

RB is cheaper with a 0.58% expense ratio, compared with 0.74% for MSOS.

Which ETF pays a higher dividend yield, MSOS or RB?

RB has the higher dividend yield at 2.27%, compared with 0.00% for MSOS.

What is the main difference between MSOS and RB?

MSOS is categorized as Small Cap Blend Equities, while RB is Defined Outcome. They also come from different issuers: AdvisorShares and ProShares. Their fees differ too: 0.74% for MSOS and 0.58% for RB.

Which has better risk-adjusted returns?

RB currently has the higher Sharpe Ratio (2.79 vs 0.65), 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.