I began investing in 2005 while still in medical school. In 2007, I started trading on the Brazilian stock exchange. 

By 2008, I was investing in the forex market using automated robots. For many years, I saw good returns with my stock portfolio in Brazil. 

Through day and swing trading with robots in forex, I had excellent years and others not so much; my results were unstable, though I tended to win more than lose. 

In 2020, I started investing in cryptocurrencies with robots, and in 6 months, I turned $32,000 into over $1 million. I stopped trading and exited this market upon identifying the end of that bull market cycle. 

Also in 2020, I began to study macroeconomics in depth, which became part of my analysis process, using fundamentals in my analysis as well and keeping up with new technologies. This is how I identified opportunities in cryptocurrencies, recognizing a time when the macroeconomic scenario was favorable, blockchain was an emerging technology, and then I developed a portfolio strategy that had an edge in selecting cryptocurrencies. 

Nowadays, my strategy is focused on long/short in the US stock market, aiming to buy (long) the best stocks (usually large tech stocks with high growth potential, solid business moat, but also some excellent defensive stocks) or ETFs of the best sectors and sell (short) ETFs that have poor strategies and/or prospects.

Investor

Marcello Vieira - Investidor de Sucesso

I founded 'Successful Investor' while working full time as a doctor back in 2012, teaching people how to invest more effectively.

The strategies have evolved over time, but I only teach what I do with my own money.

We now have over 15,000 students learning about investments in crypto and stocks with the goal of achieving financial freedom.

Founder

Medical Doctor

The All-Weather Investor | Building a $5M portfolio—$1M already achieved | Sharing everything I learn along the way

Strategic stock investing for Wealth Managers and Family Offices.

Wealth preservation is essential. 

But true financial stewardship requires strategic growth—built on conviction, discipline, and risk management.

Many wealth managers and family offices struggle to find stock investment strategies that deliver superior returns without unnecessary complexity. Our approach bridges that gap.

I’m Marcello, a former doctor turned full-time investor with two decades of experience in stock and crypto markets. 

Since 2016, I have worked with wealth managers, family offices, and high-net-worth individuals to implement investment strategies that maximize performance while protecting capital.

In 2020 and 2021, my momentum-based approach transformed $32,000 into over $1 million. 

Today, we refine and apply that strategy for professionals seeking an edge in the markets.

What we offer: 

↳ Institutional-grade stock strategies designed for long-term performance
↳ Risk-managed investment frameworks to navigate uncertainty with confidence
↳ Tailored solutions for wealth managers and family offices seeking scalable, high-conviction strategies

If you're looking to strengthen your portfolio strategy with a proven, data-driven approach, email me at marcello@mdvinternational.com

Marcello Duarte Vieira

Brainwave

Breethly

Neuroscience Consultant + Advisor

Limitless You Games

Chief Scientific Officer (Fractional)

World Health Organization

Healthcare Influencer (Pro Bono)

eaze

Chief Scientific Officer

MindLabs

Head of Mindfulness

Joker Group

Project Manager

Mental Resilience + Mindfulness for Corporate | Neuroscientist | WHO Fides Member

Hi! I’m Anne-Sophie 👋🏽, a neuroscientist.

Over the past 12 years, I’ve dedicated my career to understanding how the brain works and how we can leverage that knowledge to improve focus, resilience, and performance. With 6 years in academia and 6 years in industry, I’ve built a unique approach that combines cutting-edge neuroscience with practical strategies to help individuals and teams thrive.

I run mental fitness and performance workshops for organisations that want to invest in their people. My mission is to create workplaces where employees feel focused, motivated, and supported. 

Happy, resilient teams are the foundation of success.

It’s incredibly rewarding to see the transformation in teams I’ve worked with:

✨ Employees who feel inspired and equipped with tools to handle challenges
✨ Leaders who foster environments of productivity and innovation
✨ Organisations that experience measurable boosts in engagement and retention

I wasn’t always confident about bringing my expertise outside the lab. Like many academics, I worried about how to translate complex science into actionable advice. But over time working in health tech startups, I’ve honed my ability to connect the dots between research and real-world impact, delivering workshops that are both engaging and results-driven.

Here’s how it’s paid off:

Teams leave my workshops with strategies they can apply immediately.
I’ve had the privilege of working with high-performing teams across different industries.
My sessions consistently receive feedback about being inspiring, practical, and grounded in real science.

Now, I have two core missions in my work:

1️⃣ To empower individuals and teams with neuroscience-backed tools to be the best they can be- to improve focus, resilience, and performance.
2️⃣ To bridge the gap between academic research and actionable insights, making science accessible and impactful for organisations.

If you’re a leader or organisation looking to:
✔️ Boost team productivity and mental fitness
✔️ Reduce burnout and improve employee well-being
✔️ Cultivate a resilient, focused workforce

I’d love to help.

Here’s how we can work together:

1️⃣ Book a workshop
2️⃣ Connect with me for speaking opportunities
3️⃣ Follow along for weekly tips and insights, on LinkedIn and through my Newsletter

Let’s connect and talk about how we can create real impact :)

Anne-Sophie

Anne-Sophie Fluri 🧠

taplio

The Battle

Marcello Duarte Vieira

Anne-Sophie Fluri 🧠

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