Help your business grow by creating your next online presentation with Cevian, a business virtuoso.

Recent Posts

Quick business execution 00 875 665 874 88 cevian@select.com

Identifying and addressing client needs.

wealth management for individuals, families, and institutions

Abalone Zeus Solitaire Ltd.

Abalone Zerus Solitaire Ltd. is a Swiss Company, associated and supervised by PolyReg (a FINMA recognized SRO) delivering a fully comprehensive set of wealth management services to individuals and families, advisory services to Institutional Clients, and developing quantitative strategies on equity together with advanced option strategies.


As an independent Wealth Management and Financial Advisory company, Abalone Zeus Solitaire Ltd. provides innovative and professional services, with the mission to support Private and Institutional clients in the planning and realization of their financial objectives. Abalone Zeus Solitaire Ltd. identifies and understands clients’ needs and life goals, taking care of the entire wealth management planning.

Our Team

Roberto Colapinto


Founder of all companies of Abalone group, Roberto held several important roles in his working experience. In 2013 he was Head of Regional Coverage responsible for Southern Europe and Latin America for Credit Agricole and in 2007 he served as General Manager Edmond de Rothschild Europe for Milan branch.

Maurus Nussbaumer

Board Member & Deputy CEO

Maurus was active as Relationship Manager for the institutional clients of Abalone Solitaire Ltd. before becoming Deputy CEO. He holds a degree in Management from the University of Fribourg. He managed, for several years, the relationships of Cornèr Ltd. in Lugano with its institutional counterparties located in German-speaking Switzerland, Luxembourg and Dubai.

Stephan Hofer

Board Member & CIO

Stephan Hofer has been in banking for over two decades. Advising entrepreneurs and professional clients at IHAG Privatbank, Zurich and formerly a partner at BZ Bank, Wilen.
On the sell-side until 2015 working for Berenberg focusing on European equities, prior to that for William Blair & Company, L.L.C. focusing on US growth companies.
He also managed various mutual funds for AIG Private Bank und started his career at HSBC Private Bank (Suisse) S.A. in portfolio management.
Stephan Hofer studied Business Administration at Zurich University of Applied Sciences majoring in Banking & Finance.

Thomas H. Duermueller

Managing Director

Before joining the company Thomas H. Duermueller founded Solitaire Aquila Ltd. where he was CEO. He is now in charge of High Net Worth Individuals. Before he carried out several functions within major Swiss Private Banks. He was Head Private Banking and Member of the Management Board with AIG Private Bank Ltd. in Zurich and before he was Managing Director & Deputy Head Private Bank within Julius Baer.

Antonio Urbano


Over 20 years spent in equity brokerage, working among the others, with Julius Baer, Société Générale Equities International, Carnegie Securities between London and Milan.  He was a co-founder of Kepler Capital Markets, working as Managing Director for the Italian office. He is a co-founder of  VintHedge Italian Wine Growth Fund SICAV SIF, investing in Italian Fine Wine.

Siegfried Spitzer

Senior Portfolio Manager

Siegfried is the Head of Quantamental. Quantamental is a business within Abalone Solitaire Ltd. that generates consistent outstanding uncorrelated risk-adjusted returns by developing and deploying Siegfried’s trading strategies for Cash Equities, Equity Futures and Indices, Fixed Income, Commodities, and Currencies.

Melanie Stauffer

Director & Head Business Development MENA Region

Melanie Stauffer has over twenty years experience in international investment and private banking. She started her career with Enron in London working as a Power Trader. Melanie then gained extensive experience in the Fixed Income and Credit Markets working as a Sales Trader for major Investment Banks. She subsequently headed the Investment Consulting Team for international High Net Worth individuals in Credit Suisse Private Banking in Zürich, Switzerland before she founded her own independent wealth management company, Alchemy Capital AG, in 2008. She has in-depth knowledge and trading experience of financial markets across all asset classes.

She holds a Master’s degree from the University of St. Gallen HSG Switzerland with focus on Finance and Capital Markets and a CEMS (Community of European Management Schools) Master’s in European Business Management. 

Davide Vicini


Davide Vicini is Director at Abalone Solitaire Ltd. Before joining the Abalone team, Davide was Sr. Associate of 21Shares where he dealt with the commercial development of the company in Southern Europe since early 2019. Before that he was head of the Venture Capital and Blockchain technical department of a Swiss consulting boutique. BUT. He began his career at Banca Arner (Now: One Swiss Bank) as a business development in wealth management, a Swiss private bank with offices in Lugano, Zurich and Geneva. Davide holds a BA in Business and Management from Westminster University and a master's in Corporate Finance & Banking from SDA Bocconi.

Silvia Bon

Head of Group Onboarding

Silvia is the Head Administration & Company Secretary of Abalone Group. She has over 20 years professional experience in Insurance and Real Estate in Italy, Treviso and Milan. Since 2013 she has been working for an international Family Office in Luxembourg.

Renate Waldner

Vice Director

Prior to joining the company Renate Waldner was COO of Solitaire Aquila Ltd. and Solitaire Wealth Management. She has more than 20 years professional experience and has been working within several leading private banks. She was Relationship Manager and Investment Adviser in Zurich. 

Davide Chiantore

Portfolio Manager

Davide is Head of Research in Abalone Solitaire Ltd. He previously worked as a Risk & Quantitative Analyst in Frame Asset Management SA, a swiss independent investment manager with Eur 1 billion in asset under management.

Pascal Meier

Relationship Manager

Pascal is Relationship Manager for the private clients of Abalone Solitaire AG. He has been working at Solitaire since 2019, where he demonstrates his 10 years of professional experience which he gained at various banks. In addition to his work, he holds a Bachelor of Science in Business Information Technology, a Master of Advanced Studies in Banking & Finance and a Master of Science in Financial Services.

Alessandra Panella


Alessandra has gained more than 20 years experience in the financial industry, working as Equity Analyst in Kepler Capital Markets, Banca Imi and Caboto Sim and as Investor Relations Manager in listed companies and investment funds.


Wealth Management

We help our clients to navigate changing market environments, so that they can confidently realize their long-term life objectives. By combining robust capital markets research, expert portfolio construction and comprehensive risk management, Abalone Zeus Solitaire Ltd. is able to craft innovative and efficient investment solutions. Our robust investment capabilities span all markets and asset classes, from passive and risk-factor to fundamental active, multi-asset class and multi-manager strategies, delivered in multiple vehicles.

Advisory Services

Exploiting the strong scientific and technological know-how developed in house, Abalone Zeus Solitaire Ltd. provides consulting and advisory services to corporations, professional asset managers and financial institutions. Abalone Zeus Solitaire Ltd. acts as a supplier of complex mathematical and quantitative models to develop efficient portfolios management strategies, optimisation in cash flow management and powerful solutions, to reduce computational and operational costs in asset management activities.

Financial Market Analysis

We provide Financial & Markets Analysis, statistical models development and R&D in applied mathematics. In a challenging and increasingly complex world, the use of robust and a sophisticated quantitative work frame is a key factor, to be combined with traditional asset management strategies. We still see an increasing investor demand for quantitative investment strategies, which are purposefully built to help investors achieve targeted excess returns and avoid unintended risks: we keep strong focus on developing solutions that help our clients to achieve their specific objectives and our range of quantitative strategies is designed to support the specific requirements of each single client.

More about our Group