About Aquamarine Capital
Where strategy and philosophy meet
Aquamarine Capital is the investment firm managed by Guy Spier, reflecting his personal and professional philosophy. This firm is proof that the alchemy between ethical consideration and financial profitability is not an investment myth. Rather, it's a principle with which Spier has achieved significant and stable returns.
An ethical approach
Aquamarine Capital adheres to highly ethical principles in its investment strategy. Spier avoids investments that rely on exploitation or practices that go against his morals. Imagine a philosopher selling stocks; yes, that's Guy Spier.
The firm prioritizes transparency and honesty, which is quite refreshing in a world of schemes and tricks. Aquamarine has demonstrated that it's possible to be profitable without sacrificing integrity.
Integrity: Operating with the highest ethical standards.
Profitability: Achieving notably stable profits.
Spier's idea of an ethical approach is not just a marketing element; it translates into real practice that consistently delivers results. Aquamarine Capital is a testament that profitability and ethics can and should coexist.
As the great entrepreneur Henry Ford once summarized: "A business that makes nothing but money is a poor business." Guy Spier, through his leadership at Aquamarine Capital, reminds us that true financial success has as many dimensions as a well-constructed polyhedron.

Guy Spier defies convention with a reflective insight that transforms market uncertainties into nuanced narratives, revealing hidden dynamics beneath everyday figures.
His investment strategy
The road less traveled to financial success
Guy Spier follows an investment strategy focused on long-term value. Inspired by Benjamin Graham and, of course, his friend Warren Buffett, Spier preaches patience and diligence as the keys to unlocking the true potential of investments. It's not just about buying low and selling high; it's about intrinsically understanding the value of a business.
The Warren Buffett approach
Like Buffett, Spier advocates investing in solid companies with robust fundamentals. He prefers companies that have a 'moat,' or economic moat, providing them with a sustainable competitive advantage. Oh, you thought only castles had moats? Think again. Although he probably had other types of fortifications in mind.
This approach is what he calls "investing in the obvious": recognizing companies that, while they may be undervalued in the market, have a proven ability to provide consistent returns.
Patience and discipline: Taking time to act based on meticulous research.
Long-term focus: Not being swayed by daily market fluctuations.
Spier places a strong emphasis on continuous learning, constantly redefining his process as the market evolves. He embraces independent thinking and avoids the temptation of impulsive reactions instigated by peer pressure or market swings. His simple yet effective formula challenges the notion that volatility is something to fear in the market.
Why he is known
The fascinating story of an unconventional investor
Guy Spier is a name that resonates in the financial world, but what makes him so special? To begin with, he is the author of the book "The Education of a Value Investor", where he shares his personal and professional transformation. Spier is not just an investor, but an innovative thinker who has captured the essence of how investment decisions intertwine with personal growth.
His fame skyrocketed when he won a charity lunch with Warren Buffett in 2007. This event, known as the "Power Lunch," not only gave him a broader public platform but also solidified his focus on long-term investment with fundamental value. Because, let's be honest, who wouldn't want investment advice while enjoying a steak with the Oracle of Omaha?
The book that catapulted him
In his book, Spier details how mindset and ethics can completely reshape one's view of the financial world. With an almost philosophical approach, he challenges the norm of ego-driven investing, replacing it with a more authentic and conscious perspective.
Some of his key principles include the importance of the circle of competence, avoiding the habit of comparison, and cultivating emotional frugality. His life reflects his mantra: 'Simplicity is the ultimate sophistication.'
The circle of competence: Knowing your limitations and not investing outside your understanding.
Emotional frugality: Avoiding unnecessary emotional drain by simplifying complex decisions.
Spier has been a central figure in redefining investing as an art that blends personal introspection and economic analysis. His message resonates with those seeking a more human approach in an industry known for its rigidity.

Last Update
31.3.25
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WHO IS GUY SPIER: A GUIDE TO UNDERSTANDING HIS INVESTMENT LEGACY
Have you ever wondered who Guy Spier is and why he is so renowned? Dive into his life, investment strategy, and his role at Aquamarine Capital.