RPAR vs. ARB

Last updated Apr 1, 2026

Compare and contrast key facts about RPAR Risk Parity ETF (RPAR) and AltShares Merger Arbitrage ETF (ARB).

RPAR and ARB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. RPAR is an actively managed fund by Toroso Investments. It was launched on Dec 13, 2019. ARB is a passively managed fund by Water Island Capital Partners LP that tracks the performance of the Water Island Merger Arbitrage USD Hedged Index. It was launched on May 7, 2020.

Performance

RPAR vs. ARB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in RPAR Risk Parity ETF (RPAR) and AltShares Merger Arbitrage ETF (ARB). The values are adjusted to include any dividend payments, if applicable.

RPAR vs. ARB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
RPAR RPAR Risk Parity ETF	3.85%	17.91%	0.06%	6.03%	-22.82%	7.56%	17.98%
ARB AltShares Merger Arbitrage ETF	0.86%	6.05%	4.07%	3.85%	2.67%	3.16%	3.78%

Returns By Period

In the year-to-date period, RPAR achieves a 3.85% return, which is significantly higher than ARB's 0.86% return.

RPAR

• 1D: 1.55%
• 1M: -5.97%
• YTD: 3.85%
• 6M: 6.09%
• 1Y: 15.70%
• 3Y*: 7.21%
• 5Y*: 2.25%
• 10Y*: —

ARB

• 1D: 0.34%
• 1M: 0.65%
• YTD: 0.86%
• 6M: 1.58%
• 1Y: 4.27%
• 3Y*: 5.50%
• 5Y*: 4.12%
• 10Y*: —

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

RPAR vs. ARB - Expense Ratio Comparison

RPAR has a 0.51% expense ratio, which is lower than ARB's 0.87% expense ratio.

ARB

AltShares Merger Arbitrage ETF

RPAR

RPAR Risk Parity ETF

Return for Risk

RPAR vs. ARB — Risk / Return Rank

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

RPAR

RPAR Risk / Return Rank: 75
RPAR Sharpe Ratio Rank: 76
RPAR Sortino Ratio Rank: 76
RPAR Omega Ratio Rank: 71
RPAR Calmar Ratio Rank: 79
RPAR Martin Ratio Rank: 74

ARB

ARB Risk / Return Rank: 87
ARB Sharpe Ratio Rank: 82
ARB Sortino Ratio Rank: 85
ARB Omega Ratio Rank: 80
ARB Calmar Ratio Rank: 93
ARB 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.

RPAR vs. ARB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for RPAR Risk Parity ETF (RPAR) and AltShares Merger Arbitrage ETF (ARB). 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.

	RPAR	ARB	Difference
Sharpe ratio Return per unit of total volatility	1.34	1.54	-0.20
Sortino ratio Return per unit of downside risk	1.86	2.23	-0.37
Omega ratio Gain probability vs. loss probability	1.25	1.30	-0.05
Calmar ratio Return relative to maximum drawdown	2.05	3.50	-1.45
Martin ratio Return relative to average drawdown	7.30	17.20	-9.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RPAR vs. ARB - Sharpe Ratio Comparison

The current RPAR Sharpe Ratio is 1.34, which is comparable to the ARB Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of RPAR and ARB, 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

	RPAR	ARB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.34	1.54	-0.20
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.18	0.95	-0.76
Sharpe Ratio (All Time) Calculated using the full available price history	0.32	0.94	-0.62

Correlation

The correlation between RPAR and ARB is 0.21, 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

RPAR vs. ARB - Dividend Comparison

RPAR's dividend yield for the trailing twelve months is around 2.15%, more than ARB's 0.43% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019
RPAR RPAR Risk Parity ETF	2.15%	2.55%	2.51%	3.16%	4.01%	2.02%	0.76%	0.23%
ARB AltShares Merger Arbitrage ETF	0.43%	0.43%	1.12%	0.00%	4.18%	0.00%	2.87%	0.00%

Drawdowns

RPAR vs. ARB - Drawdown Comparison

The maximum RPAR drawdown since its inception was -30.16%, which is greater than ARB's maximum drawdown of -5.60%. Use the drawdown chart below to compare losses from any high point for RPAR and ARB.

Drawdown Indicators

	RPAR	ARB	Difference
Max Drawdown Largest peak-to-trough decline	-30.16%	-5.60%	-24.56%
Max Drawdown (1Y) Largest decline over 1 year	-8.10%	-1.20%	-6.90%
Max Drawdown (5Y) Largest decline over 5 years	-30.16%	-5.60%	-24.56%
Current Drawdown Current decline from peak	-5.97%	0.00%	-5.97%
Average Drawdown Average peak-to-trough decline	-11.83%	-0.96%	-10.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.27%	0.26%	+2.01%

Volatility

RPAR vs. ARB - Volatility Comparison

RPAR Risk Parity ETF (RPAR) has a higher volatility of 4.81% compared to AltShares Merger Arbitrage ETF (ARB) at 0.96%. This indicates that RPAR's price experiences larger fluctuations and is considered to be riskier than ARB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RPAR	ARB	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.81%	0.96%	+3.85%
Volatility (6M) Calculated over the trailing 6-month period	7.74%	2.01%	+5.73%
Volatility (1Y) Calculated over the trailing 1-year period	11.75%	2.79%	+8.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.36%	4.37%	+7.99%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.74%	4.41%	+8.33%