About
My name is Vanessa de Souza.
In the market, Nessa Trader.
Order flow is the starting point: looking at who is buying and who is selling, in what size, with which instrument, and asking what price has not told us yet.
Track record
Writing almost every day has a side effect: there is no hiding a mistake. Every thesis stays on the record, with a date. When I get it right, it is there. When I get it wrong, it is there too. I prefer it that way. Trust is not asked for, it is built on the record.
What can be verified today
- Securities adviser at Gulfstream Capital. The advisory is provided by Gulfstream Capital Ltda., authorised by the CVM (Comissão de Valores Mobiliários, the Brazilian securities regulator).
- I have published almost daily since October 2025, with three fixed columns a week.
- In March 2026, Nelogica’s blog listed me among the women in financial markets to follow.
- I also work as a mentor and speaker.
- I write from Rio de Janeiro. My entire public record is on Substack, with dates.
What you get here
- I read institutional order flow and derivatives.
- I write in public, with the math shown.
- I explain the reasoning, not just the conclusion.
- I own my mistakes in writing, with a date.
What you will not get here
- I do not give buy and sell signals.
- I do not promise returns, nor suggest that any guarantee exists.
- I do not manage anyone’s money.
- I do not sell shortcuts to people who would rather not study.
On the record
Credentials
Nessa Trader is the brand. Vanessa de Souza is the professional. Gulfstream Capital Ltda. is the firm authorised by the CVM. Each layer has its own role and its own registration.
Securities adviser
Works in the securities advisory services provided by Gulfstream Capital Ltda. The guidance is individual, formally contracted, with a defined scope and a suitability assessment. It is an activity distinct from the public content of this website.
Securities advisory services (CVM)
Authorised by the Comissão de Valores Mobiliários (the Brazilian securities regulator) under CVM Declaratory Act No. 25,131 of 17 April 2026, pursuant to CVM Resolution No. 19/2021. Regulated separately and provided only under contract.
Mentor and speaker
Training and outreach on reading the market, through mentoring and talks. These are educational activities: they constitute neither securities analysis nor securities advisory services, and do not depend on those registrations.
Second for growth on Instagram
In the survey Influenciadores em crescimento by FInfluence, mid-sized profile category: 66.9% growth, with 25.1k followers. That is a measure of audience and reach, not of investment performance.
Straight to the point
Direct questions
Do you give buy and sell tips?
No. What is published is analysis: the reasoning, the data and the assumptions. The decision is yours.
What are securities advisory services?
It is individual guidance, formally contracted, provided by Gulfstream Capital Ltda., authorised by the CVM (Declaratory Act No. 25,131 of 17 April 2026). It is not to be confused with what is published here and on Substack, which is public, educational and non-personalised content.
Where can you follow the work?
On Substack, where I publish the analysis with dates. That is where the full record lives, including the mistakes.