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Every asset must prove its strength
Nothing joins the cardume on hype. Quality, soundness, efficiency and risk become a Grade from 0 to 10.
The method that turns anyone — from a first contribution to a million-dollar portfolio — into an investor with method, clarity and control. No guesswork. No black box.
Investing isn't about finding the perfect sardine. It's about building a school that can weather any storm.
The real problem
Whether it's your first contribution or your thousandth: without criteria and a view of the whole, any portfolio comes down to luck. And luck doesn't weather storms.
IF YOU'RE JUST STARTING
IF YOU'VE INVESTED FOR YEARS
The answer isn't a magic stock. It's a method that fits the beginner and gives the veteran a clear view.
Six principles
Before any tool, it's a shift in mindset. Six principles that hold for the first contribution and for the million-dollar portfolio.
Nothing joins the cardume on hype. Quality, soundness, efficiency and risk become a Grade from 0 to 10.
No single stock guarantees results. The strength lies in the whole portfolio, built to withstand.
The highest-quality, most predictable assets hold the portfolio together. You build around them.
No excessive concentration, no dependence on one sector, with a reserve and diversification across classes.
Fundamentals shift and sectors rotate. A portfolio is never static: monitoring is part of the method.
Swap “what's going up today?” for “what strengthens my cardume?”. Criteria instead of impulse.
From principle to practice
The Cardume Method isn't textbook theory. It becomes screen, number and alert — simple for beginners, deep for the demanding.
Create your account and build your first cardume in minutes.
Start now →There's no one-size-fits-all portfolio
The method is the same; the balance changes with you. See how the split across the four classes adjusts — and find your profile when you sign up.
PERFIL MODERATE
Balance between growing and protecting. Nearly half in fixed income, the rest spread across stocks, FIIs and a pinch of crypto. The classic cardume.
Method reference allocations, by class. They are not an investment recommendation. The emergency reserve is a separate foundational layer.
Live proof
We don't promise you'll make money. We do better: we show, every day and in plain sight, how the method-approved stocks fare against the Ibovespa — the market average. You look and judge.
It's the basket of stocks approved by the method (graded 7 or higher), updated daily — weights follow the methodology declared on the index page. It's transparency, not a buy recommendation.
Why trust it
Sardinha doesn't tell you what to buy. It gives you the method, the criteria and the view so you can decide better. Forever.
Sardinha organizes and brings clarity. It promises no returns and doesn't sell “the next stock that will explode”.
The platform places no orders and never touches your money. The last word — and the broker — are yours.
The Grade comes from public fundamentals with transparent rules. No black box.
Every number comes with the why. You learn the method as you use it — and become independent.
Frequently asked questions
It is — it was designed for that. The method turns complex decisions into clear steps: you evaluate, score, allocate and monitor. You don't need to read balance sheets; the Grade does the heavy reading and shows you the why.
The best day to start investing with method was yesterday. The second best is today — and it takes 2 minutes.