Strategy Objective

To deliver absolute returns largely uncorrelated to equity and fixed income markets.

Key Differentiators

  • Calamos is a pioneer in convertible and options investing, where analysis of public acquisitions and opportunities to alter risk reward through structure is an ingrained part of the investment process
  • Our merger strategy is a natural extension of our experience managing hedged equity and convertible arbitrage strategies for more than 20 years on average as a team
  • Because of this, we believe one of our main edges resides in public acquisitions where there are convertible bonds, liquid options or other securities within a target company's capital structure that allow us to alter risk reward through trade structure

Strategy Details

As of 3/31/24
Inception Date: 12/01/19
Strategy Assets*: $568.0 M
Benchmark: ICE BofA US 3 Month Treasury Bill Index (G0O1)

*Strategy Assets reflect all assets that are currently being managed (collectively) under the strategy, which may contain multiple performance composites.


Representative Portfolio Ten Largest Holdings

As of 3/31/24
Target Company Sector Acquiring Company %
Pioneer Natural Resources Company Energy Exxon Mobil Corp. 15.6
Hess Corp. Energy Chevron Corp. 11.7
Juniper Networks, Inc. Information Technology Hewlett Packard Enterprise Company 10.5
Alteryx, Inc. Information Technology Insight Venture Partners and Clearlake Capital Group 9.8
Splunk, Inc. Information Technology Cisco Systems, Inc. 9.2
Enerplus Corp. Energy Chord Energy Corp. 8.6
Amedisys, Inc. Health Care UnitedHealth Group, Inc. 8.6
Albertsons Companies, Inc. - Class A Consumer Staples Kroger Company 8.5
Capri Holdings, Ltd. Consumer Discretionary Tapestry, Inc. 7.4
TechTarget, Inc. Communication Services INFORMA PLC 5.9


As of 3/31/24
Name Calamos Portfolio
Number of Holdings 40

Asset Allocation

As of 3/31/24
Asset Allocation %
Convertibles 33.4732
Common Stock 32.1018
Corporate Bonds 1.7887
Rights 0.0491
Sovereign Bonds 0
US Government Securities 0
Options -0.0417
Cash 32.6288

Sector Weightings

As of 3/31/24
Sector % of Assets
Information Technology 44.2%
Health Care 15.5%
Consumer Staples 8.5%
Communication Services 8.1%
Consumer Discretionary 7.6%
Utilities 4.7%
Materials 4.6%
Financials 4.0%
Energy 2.6%
Industrials 0.1%
Real Estate 0.0%
Other 0.0%

Market Capitalization

As of 3/31/24
Market CAP Range % of Assets
<=$0.10bil 0.0%
>$0.10bil<=$5bil 51.9%
>$5bil<=$30bil 50.5%
>$30bil<=$200bil 57.2%
>$200bil -59.6%


Annualized Total Returns

As of 3/31/24
Name 1-Year 3-Year Since Inception (12/01/19)
Merger Arbitrage (Gross) 4.50% 3.97% 3.95%
Merger Arbitrage (Net) 3.67% 3.14% 3.12%
ICE BofA US 3 Month Treasury Bill Index (G0O1) 5.24% 2.58% 1.97%

Calendar Year Returns

As of 3/31/24
Name Qtr ending Mar 24 YTD 2024 2023 2022 2021 2020 12/1/19 - 12/31/19
Merger Arbitrage (Gross) -4.34% -4.34% 10.08% 5.18% 2.04% 3.71% 0.92%
Merger Arbitrage (Net) -4.53% -4.53% 9.21% 4.35% 1.22% 2.88% 0.85%
ICE BofA US 3 Month Treasury Bill Index (G0O1) 1.29% 1.29% 5.01% 1.46% 0.05% 0.67% 0.14%

Past performance does not guarantee or indicate future results. Current performance may be lower or higher than the performance quoted. Portfolios are managed according to their respective strategies which may differ significantly in terms of security holdings, industry weightings, and asset allocation from those of the benchmark(s). Portfolio performance, characteristics and volatility may differ from the benchmark(s) shown.

Returns and Risk/Reward statistics presented reflect the Calamos Merger Arbitrage Composite, which is an actively managed composite that seeks capital appreciation by generating absolute, uncorrelated returns to equity and fixed income markets. The Composite was created December 1, 2019 calculated with an inception date of December 1, 2019. The Composite results include all fully discretionary accounts, including those no longer with the firm.

Unmanaged index returns, unlike fund returns, do not reflect fees, expenses or sales charges. Investors cannot invest directly in an index.

The ICE BofA 3-Month US Treasury Bill Index (G0O1) is an unmanaged index that measures the performance of a single US Treasury issue with approximately three months to final maturity. The issue is purchased at the beginning of each month and held for one full month. At the end of the month, that issue is sold and rolled into a newly selected issue.

Fees include the investment advisory fee charge by Calamos Advisors LLC. Returns greater than 12 months are annualized. Chart Data Sources: Calamos Advisors LLC.

Average annual total return measures net investment income and capital gain or loss from portfolio investments as an annualized average. All performance shown assumes reinvestment of dividends and capital gains distributions.

Risk / Reward

Risk/Reward Since Inception

As of 3/31/24
Name Calamos Merger Arbitrage Composite ICE BofA US 3 Month Treasury Bill Index (G0O1)
Alpha 4.62% N/A
Beta -0.22 1.00
Annualized Standard Deviation 6.43% 0.63%
Sharpe Ratio 0.30 -0.10
Information Ratio 0.30 N/A

Vehicles & Minimums

Vehicles and Minimums

Vehicle Minimum Availability
Separately Managed Accounts $25 million Available to new investors



Merger Arbitrage Strategy Fact Sheet

The Merger Arbitrage Strategy fact sheet provides a snap shot of the investment team, the investment strategy, performance, composition, ratings and returns.

Calamos Financial Services LLC, Distributor

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