Long Tail Wind is an educational publication that helps anyone better understand important concepts in finance and investing, making advanced ideas accessible to everyone.
Our Mission
Provide practical, well-structured finance education so readers can make more informed decisions. We focus on clarity, risk awareness, and time-efficient frameworks. Not hype.
From Physician to Investor
Marcello Vieira began his career as a medical doctor. Years of clinical practice honed the same traits he relies on as a full-time investor today: disciplined thinking, evidence-based decisions, and respect for risk.

He now dedicates his time to studying U.S. markets and turning complex ideas into simple, actionable lessons for readers.

He is also a professional fund manager. His fund, ABARK QUANT STRATEGY (ISIN: XS3135092495), is based on his Specialized Momentum & Risk-Hedged strategy, focused on helping financial advisors and family offices use advanced strategies for their clients.

What We Publish
- Step-by-step guides and checklists on important finance topics
- Educational explainers on portfolio construction, income strategies, and risk controls
- Important and advanced concepts made easy, in simple terms for anyone
Who We Serve
Anyone who wants to have a better financial life.
Editorial Standards
- Accuracy & sources: We reference official filings, regulatory documents, and reputable data providers where applicable.
- Updates & corrections: Articles carry dates; we correct material errors promptly and note significant changes.
- Independence: Opinions are our own. We do not publish ghostwritten promotional pieces. Sponsored content, if ever accepted, will be clearly labeled.
How We Sustain the Site
We use programmatic advertising and may include affiliate links. If you click and buy, we may earn a commission at no additional cost to you.
Advertising and affiliate partnerships do not influence our educational content. See our Privacy Policy and Cookie Policy for details, and manage preferences anytime via the footer link.
What We Don’t Do
- We do not provide personalized financial, legal, tax, or investment advice.
- We do not make guarantees of returns or promote “get-rich-quick” schemes.
- We avoid sensitive or controversial topics unrelated to finance education.
Simple Disclaimer
All content is for educational purposes only. Investing involves risk, including possible loss of principal. Past performance does not guarantee future results. Please read our Terms of Use.
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LongTailWind—clear finance education for real-world schedules.