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

Chimère

So your lead gen is weak.

- And you're stressed, who isn't?

- Your team is executing outbound campaigns with meh leads, who isn't? 

- You are wondering if there's a way out of this to get GOOD leads, who isn't?

LinkedIn is the B2B marketers best bet, but how many use it right? 

We have been holding wakeup sessions for marketing teams, showing them where their energy should go and how they should execute on LinkedIn for a real ROI in 4 weeks. 

DM me "Want to know" to see how.

Co-Founder\\Trainer

"Wow"- I've heard this 3 times from my clients when 
I show them what their content should look and sound like. 

They also use my networking strategies to 
Connect with people and build long-term collaborations.

From taking 4-hour calls till 3 AM to showing them 
The right way to market their offers
We solved the core issue first. 

Here's what I mean:
+ Client 1: Podcast invites + Program affiliate
+ Client 2: Warm leads + DM strategy
+ Client 3: 65K views + 400 likes

FYI, all 3 clients had different goals.

Client 1 started with making noise,
Then lead gen.

Client 2 wanted to sell his product.
So, more brand awareness.

Client 3 has prospects lurking 24/7,
So, authority educational posts.

Right now, there are 2 ways I can help you: 
1. Be your LinkedIn Strategist and create content for you.
2. Be your LinkedIn Strategist and train you.

DM me with what you want to work on first.
(Or schedule a chat to see my wins.)

LinkedIn Strategist & Copywriter

GrowedIn

Creating influential brands, one post at a time. 

Like 65K views on one post and 330 likes on another. 
And +10 paid consultations for another. 

How do I do it? Let's discuss that on our call.

LinkedIn Ghostwriter

Ubisoft India

I was hired for my research skills, ambition, and ability to learn quickly.
On my last day, my manager said, "No matter what you do in life, your research skills will win you every time." 

Mhmm, I am a research geek; why do you think I love copywriting?

Compensation and Benefits Intern

Manah Center for Mental Well Being

With a degree in Psychology, knowing people is my obsession and a bonus for my copywriting mind. 

I wrote hot-take and how-to blogs on:
1. Mental health 2. Dealing with life 3. Societal norms 4. Pop culture fads. 

Although unpaid, my ability to research and think from ANYONE's perspective strengthened to the point that I could decipher personalities.

Content Writer

INDICA

Researcher

(1) Getting B2B CMOs a LinkedIn-literate team | (2) 12-week enquiry generation program *only* for consultants | +$300K in client pipeline | Message "Curious" to know more.

"Popular" content never impresses buyers.

It impresses the "LinkedIn Famous" (who don't buy from you.)

If posting worked,

And 5 of your team members just posted then everyone would be winning.

After working with leaders from multiple B2B industries, dealing with complex buyer behavior, and business problems....

It's *always* about sales psychology.

What triggers your clients?

What makes them go "We need this team on our side ASAP"

Content, profile, DMs are methods, 

The core is the trigger.

Once you figure out what makes them tick, you are golden.

You learn that with training. 

In 6 weeks business starts coming in,

In 12 weeks our partners need to outsource because they are over occupied.   

Many spend $15K for months and see no growth at all...

Which is why I want you to vet me.

Because if you want a solid business, you need a solid partner.

I would do the same.

My only condition is you evolve. I hate un-invested people.

You can see my case studies now, message me "Curious."

Ciao.

taplio

The Battle

Marcello Duarte Vieira

Sadiya Mulla

Followers

Posts

Engagements

Likes

Ready to grow your LinkedIn presence?