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Welcome

to my personal portfolio

Physics

“What holds the world together at its core”

Faust, Goethe.

Technology

Semiconductor Laser Chip Design

Img © FBH

Financial Markets

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About

"Was die Welt im Innersten zusammenhält" — "What holds the world together at its core", Faust, Goethe. One of the questions that I, as a physicist, use as a universal guideline. A truth-seeking mind manifests itself in every step of a professional path — whether discovering new laws of physics or understanding what moves the world we live in.

I firmly believe that truth is the driver of real progress and the basis for applying first principles. In your life, in a company, in a global economy.

In finance this is especially unforgiving. Markets reward clarity and punish self-deception. You can talk down your competition, but if their product is better and cheaper, the honest move is to learn from them. Setting aside ego and emotion is not weakness — it is the foundation of good judgment.

A bit about me

I studied physics to satisfy my curiosity — to understand what we don’t yet know, and to acquire powerful tools and critical thinking in the most abstract way possible. Working on cutting-edge technology and discovering things nobody has understood before is what excites me most. Ultimately, I discovered financial markets for much the same reason, even if it sounds counterintuitive. Markets are a never-ending chess game. The largest, most complex puzzle in the world, played simultaneously by millions of people with different information, different incentives and different levels of honesty.

Today, these two worlds blend together for me. Truth can be found in science, in the economy and in politics. And pursuing it will ultimately lead to growth, value creation and, eventually, to understanding what holds things together at their core.

Dr. Thorben Kaul

Career & Education

Roles, institutions, and experiences that have shaped who I am professionally. My scientific publications and patents can be found here (career page).

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Equity Investor & Trader

Independent
2017 – Present

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Semiconductor Laser Chip Designer & Project Manager

TRUMPF Laser GmbH
2019 – 2023

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Semiconductor Laser Researcher

Ferdinand-Braun-Institut gGmbH - Leibniz-Institut für Höchstfrequenztechnik
2015 – 2019

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PhD (Dr. rer. nat.) / Semiconductor Physics

Technical University Berlin
2019

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Master of Science / Theoretical Physics

Technical University Berlin
2015

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Bachelor of Science / Theoretical Physics

Technical University Berlin
2012


Trading Blog

Thoughts, analysis, and ideas from the markets — written when something is worth saying.

Have a question or a topic you'd like me to cover? Send it through the contact form and I'll post about it.

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Financial Consultation

Personalised and confidential guidance for individuals and organisations looking to make better financial decisions.

Let me help you navigate the markets

I've spent years studying markets, making mistakes, and learning what actually matters. What I offer isn't a system or a strategy — it's a thinking partner who has been through it and can help you avoid the most common and costly errors. Every session is tailored to you. We work together to build an approach that actually makes sense to you — focused on education, analytical frameworks, and independent decision-making, not tips or predictions. I don't tell you what to buy. I help you understand the framework so you can make informed decisions.

Discovery call 15 min Free
Consultation 30 min 100 €
Deep dive 120 min 250 €
Ongoing advisory weekly/monthly Special rate

All sessions are conducted online. Payment details shared upon booking.


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Portfolio Review

Giving guidance to existing Portfolios or build one from scratch.

Financial Education

What is going on in the markets right now? How can I deal with this situation?

Trading Advice

For ambitious investors who want to know how the business works or who need guidance for their daily operations.

I am not a licensed financial advisor. The guidance and knowledge I share is for informational purposes only — always do your own research and make your own decisions.


Let's talk

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