Concentrated value
and margin of safety
Give research time to a small number of businesses you truly understand, and look for value that can compound far beyond the price paid.
Explore this focus ↗LONG-TERM CAPITAL · CLEAR THINKING
Bringing rationality and
value investing wisdom
Founder of Aquamarine Capital Guy Spier
Drawing from the ideas of Buffett and Munger, Guy advises long-term investors and family offices on capital management and investment strategy.
Private conversations for thoughtful capital
GUY SPIERFOUNDER · AQUAMARINE CAPITAL
01VALUE
OVER
NOISE
OVER
NOISE
TRUSTED BY A LIFE OF LEARNING
01Author of The Education of a Value Investor
02 Oxford / Harvard alumni
03 Founder of VALUEx Klosters
01 / THE INVESTOR
Put time on the side of
rationality.
Guy Spier has spent decades focused on capital allocation, value investing, and personal growth. From his Zurich office, he ran Aquamarine Fund and shaped the partnership around the principles of the original Buffett Partnerships.
28years of investing and capital allocation
13×public record of long-term compounding
ZHZurich · family office
From Harvard Business School to lunch with Warren Buffett and the founding of VALUEx Klosters, Guy’s path has always circled one question:
“What kind of environment helps an investor move closer to facts, rather than closer to noise?”
Aquamarine is now a family office. This is not a place for loud market opinions, but for clarity, patience, and independent thinking that help clients see what long-term capital actually needs.
02 / THE PHILOSOPHY
Less noise,
more certainty.
Value investing is not a formula. It is the ongoing practice of returning attention to facts, odds, and time.
Concentrated value
Independent thinking
and rational decisions
Design the environment before making decisions. Use independent thinking against emotion and process to protect judgment.
Start a conversation ↗Lifelong learning
and mental models
Keep learning from science, business, psychology, and the real world to build models that stay close to reality.
Read and listen ↗03 / PRIVATE ADVISORY
Make complex questions
clear.
A good capital conversation is not about producing a loud answer. It helps decision-makers understand what they are backing and what they are accepting in return.
Submit an advisory request →For long-term questions around allocation, investment systems, and leadership communication.
Family offices and high-net-worth clients
Build decision frameworks around asset allocation, investment policy, and through-cycle risk management that families can use for decades.
CAPITAL ALLOCATIONValue investing systems and portfolio risk
Clarify research processes, portfolio boundaries, and margin of safety so that investment principles work inside real teams and processes.
PORTFOLIO DESIGNOne-to-one conversations and speaking invitations
Open, candid conversations with investment teams, family members, and organizational leaders about long-term thinking, learning, and judgment.
CONVERSATIONS04 / THE HUB
Keep learning,
think in public.
Start with a book, a podcast, or a real community conversation, and give good questions time to deepen.
BOOK / 2014The Education
The Education
Ideas worth
VALUEx
The Education
of a Value Investor
An investment education that moves from chasing wealth to understanding value, environment, and self.
Read on Amazon ↗ PODCAST / LEARNING IN PUBLICThe Education
of a Value Investor
Learn in public through conversations about investing, health, life, and curiosity.
Open the podcast ↗ VIDEO / YOUTUBEIdeas worth
revisiting.
Talks, interviews, and interdisciplinary ideas to revisit slowly.
Watch the channel ↗ COMMUNITY / KLOSTERSVALUEx
Klosters
Since 2011, a community in the Swiss Alps for sharing ideas, knowledge, and time.
Explore the community ↗