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

Great managers are great at execution. It’s not only about picking good stocks, but also about position sizing, letting winners run, and cutting losses short. I would argue that execution is even more important than stock picking.

Fund Manager | Specialized Momentum & Risk-Hedged Solutions for Family Offices & Advisors | 20+ Years of Market Experience

In most market environments, strong stocks perform extremely well. The exception is bear markets and liquidity crises, where hedging matters most. Otherwise, concentrate on stocks in strong phases. Right now, memory, fiber optics, gold miners, and commodities stand out.

AI is speeding up the markets, making trends shorter and more volatile with sharper swings. More than ever, you need to move quickly and not always hold out for a pullback before jumping into a new trade.

You need conviction in your strategy so you can handle volatility without doing dumb things. Conviction comes from knowledge + experience.

Strategies should be built on first principles. There is no single magic formula in fundamental or technical analysis. You need to understand the concepts that truly make sense and matter most (the 80/20 rule), and have the courage and discipline to execute.

Most investors spend too much time asking: “Am I right or wrong?”
The better question is:
 “How much do I make if I’m right, and how much do I lose if I’m wrong?”
That is the real game.
In investing, win rate is overrated.
 Payoff ratio is what changes everything.
You can be right 70% of the time and still lose.
 You can be right 30% of the time and still outperform.
That is why investing is so hard: it goes against human nature.
 And that is also why conviction and sizing matter far more than most people think.

Jeremy Prasetyo

World Champion turned Cyberpreneur | Building an AI SaaS company to $1M ARR and sharing my insights along the way | Co-Founder & CEO, TRUSTBYTES

While everyone's talking about AI, the Agentic Web and Web3,
few understand how to turn them into competitive advantage, 
even fewer into institutional advantage.
That's where I come in.

I'm a former World Champion turned Tech Founder and Emerging Technology Strategist who decodes tomorrow's tech for today's leaders. 
Through my unique ability to break down complex technologies into actionable strategies, I help organizations transform uncertainty into opportunity.

As CEO of TRUSTBYTES and an internationally recognized keynote speaker, I bridge the gap between cutting-edge innovation and real-world implementation. 

My expertise spans:

→ Emerging Tech Translation
- Transforming AI and blockchain complexities into clear strategic advantages
- Converting technological uncertainty into market-leading opportunities
- Building innovation flywheels that compound over time

→ Leadership Acceleration
- Mentoring the next generation of tech-savvy leaders
- Guiding institutional transformation with practical frameworks
- Creating bridges between legacy systems and emerging technologies

→ Strategic Innovation
- Designing AI-driven business flywheels that scale
- Developing institutional-grade technology strategies
- Engineering frameworks for sustainable growth

Through high-impact keynotes, executive mentorship, and hands-on leadership, I empower decision-makers to turn technological complexity into market dominance. 

My approach merges deep technical insight with battle-tested business acumen, helping organizations thrive in rapid change.

Tech moves fast.
Markets move faster.
But institutional transformation?
That's where most leaders get stuck.
I'm here to change the game.

Follow me for actionable insights on emerging tech, leadership, and exponential growth. 

Let's build tomorrow's advantages today.

CEO & Co-Founder

FIGHTING CYBERCRIME LIKE IT'S 2030
Find more bugs in less time while saving up to 80% of cybersecurity resources.

HOW IT WORKS
TRUSTBYTES secures exponential technologies like Web 3.0, AI or Quantum TECH with its advanced AI that delivers unparalleled accuracy. By deploying self-learning AI agent swarms that adapt to evolving threats we protect systems with superior vulnerability detection and mitigation.

THE PROBLEM
$8 Trillion in Damages
Cybercrime Damages did cost the world $8 trillion USD in 2023.
Until now, global cybercrime costs grew by 15 percent each year.
But this number will grow exponentially, as hackers start using AI or even Quantum TECH.

Threat to Humanity
Warren Buffett calls cybercrime the biggest problem facing humanity - a threat exceeding nuclear weapons.
The answer lies in fighting fire with fire through AI counterforce.
TRUSTBYTES is that enabler for CISOs - an advanced AI system augmenting human experts to proactively remediate cyber threats before damage occurs.

OUR SOLUTION - SECURING EXPONENTIAL TECHNOLOGIES

➝ Web 3.0 - Smart Contract Auditing Suite

➝ Securing AI Systems

➝ Securing the Quantum TECH era


For more details visit: trustbytes.io

This will change the way you think:
(If you can handle it.)
⤵

Most people say they want growth.
Very few want the discomfort that comes with it.

Read slowly.


1/
➠ Change Requires Brutal Honesty

➝ Most people want better results without better decisions.
↳ Same habits.
↳ Same outcomes.

➝ Growth begins with ownership.
↳ No excuses.
↳ No blame.

Before anything improves, you must confront yourself. Not your boss. Not the economy. Not your past. You. Because nothing shifts until responsibility does.

And once you take ownership, something uncomfortable happens…


2/
➠ Comfort Is The Real Trap

➝ Comfort feels safe but slowly kills ambition.
↳ Easy days.
↳ Weak standards.

➝ You don’t stagnate overnight.
↳ Small compromises.
↳ Daily drift.

Success rarely collapses. It erodes. Quietly. Gradually. Comfort doesn’t destroy you in one move. It numbs you in small ones.

If comfort is the trap, then pressure is the test…


3/
➠ Strength Is A Decision

➝ Life doesn’t get easier as you grow.
↳ You adapt.
↳ Or complain.

➝ Pressure reveals character.
↳ Discipline.
↳ Grit.

You don’t become strong by wishing for ease. You become strong by choosing growth when it’s inconvenient.

And when preparation meets pressure…


4/
➠ Timing Exposes Preparation

➝ Opportunity rewards the prepared, not the hopeful.
↳ Skill first.
↳ Luck later.

➝ Waiting is not strategy.
↳ Action is.
↳ Now.

The right time doesn’t arrive magically. It exposes who has been preparing and who has been postponing.

Which leads to one final truth…


5/
➠ Presence Determines Legacy

➝ Be present while it matters.
↳ Attention now.
↳ Regret later.

➝ Believe before evidence appears.
↳ Faith.
↳ Move.

You don’t control outcomes.
You control focus.
And focus compounds.

Now ask yourself:

▶ What belief is limiting you?
▶ What excuse feels justified?
▶ What fear stays hidden?
▶ Why delay?
▶ You?


//

Repost this ⇄

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Source: @‌we.think.deeply on IG

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Follow me for daily posts on emerging tech and growth: https://lnkd.in/gqzS_9Tf

//

World Champion turned Entrepreneur | Follow me for emerging tech, leadership and growth topics | Co-Founder & CEO, TRUSTBYTES (Techstars ’25)

Change the way you think

There has never been a better time in history to start…
…here’s why:
⤵

The ground is shaking. That’s your signal.

When everything feels unstable, most people freeze.

Founders shouldn’t.

Volatility is not a warning sign.
It’s a starting gun.

And right now, the clock speed of entire industries is accelerating.


1/
➠ The clock just changed

➝ AI is compressing industry timelines
↳ Code is being commoditized
↳ Workflows are being rebuilt
↳ Old playbooks are breaking

This is not a feature update.

It is a pace reset.

When the speed of progress increases, anything built for the old tempo becomes friction. And friction kills incumbents.


2/
➠ Speed beats size

➝ Big companies have scale and capital
↳ But they iterate slowly
↳ Layers slow decisions
↳ Legacy resists change

When experimentation becomes cheap, scale stops being the ultimate advantage.

If code is generated on demand…
If products can be rebuilt overnight…
If testing costs close to zero…

Then iteration becomes leverage.

Startups win because they:

➝ Move quickly
↳ Test constantly
↳ Pivot fast
↳ Ship daily

In a fast clock cycle, speed compounds.


3/
➠ The shake-up is the setup

➝ Markets feel unstable
↳ Business models feel exposed
↳ Assumptions feel fragile
↳ Certainty feels gone

Good.

Everyone is facing the same disruption.

But not everyone will respond with urgency.

When the clock cycle shifts this dramatically, startups almost always win.

Not because they are smarter.

Because they are faster.

And we have never seen the ground shake like this before.

So the better question is not,
“What happens to my industry?”

It is,
“How fast can I rebuild within it?”

▶ What if instability is the advantage?
▶ What if scale is slowing you down?
▶ What if caution is the real risk?
▶ What if this is your window?


//

Repost this ⇄

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Source: Sam Altman via @‌multiprenur

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Follow me for daily posts on emerging tech and growth: https://lnkd.in/gqzS_9Tf

//

A new Silicon Valley startup just crossed $10B.
Its product? Your profession.
⤵
 
Knowledge used to be power.

Now it’s data.

Training material.

Expertise turned algorithms.
 
And your Stanford PhD?
Training the system that replaces themselves:


1/
➠ AI Progress Is Human-Led

➝ Experts identify model mistakes
↳ They measure them precisely
↳ They create scoring rubrics
↳ They reinforce better outputs

AI doesn’t improve by magic.

It improves because professionals teach it how.

And that raises the obvious question.


2/
➠ Are They Training Their Replacements?

➝ Yes
↳ In structured workflows
↳ At scale
↳ For speed

Entire professions are being distilled into repeatable logic.
But here’s the nuance.


3/
➠ What Actually Gets Replaced

➝ Pattern-based decisions
↳ Documentation
↳ Analysis
↳ Predictable judgment

What remains is harder to codify.


4/
➠ What Stays Human

➝ Context
↳ Ethics
↳ Empathy
↳ Accountability

The question is not whether AI will replace knowledge workers

The question is
▶ which parts of your expertise are defensible?
▶ Are you building skills that scale with AI?
▶ Or tasks that get absorbed by it?

 
//

Repost this ⇄

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Source: https://lnkd.in/dsetVE5e

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Follow me for daily posts on emerging tech and growth: https://lnkd.in/gqzS_9Tf

taplio

The Battle

Marcello Duarte Vieira

Jeremy Prasetyo

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Performance ScoreMarcello Duarte Vieira's LinkedIn Performance

Performance ScoreJeremy Prasetyo's LinkedIn Performance

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The Battle

Marcello Duarte Vieira

Jeremy Prasetyo

Followers

Posts

Engagements

Likes

Performance Score.css-goub6s{font-size:var(--chakra-fontSizes-md);font-weight:500;color:var(--chakra-colors-gray-600);display:block;margin-top:var(--chakra-space-1);}Marcello Duarte Vieira's LinkedIn Performance

Performance ScoreJeremy Prasetyo's LinkedIn Performance

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Performance ScoreMarcello Duarte Vieira's LinkedIn Performance