The Rational Bull

Stock Thesis

Know why a stock matters.
Know when the story changes.

AI-powered fundamental intelligence that turns company filings and financial data into a clear investment thesis you can actually understand.

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Search → Understand → Follow → Know when it changes.

NVIDIA

NVDA · Semiconductors

Strong
Thesis Health87 / 100

Each segment is one thesis condition, sized by weight, shaded by status.

Growth
Strong
Profitability
Strong
Financial Health
Strong
Competitive Position
Strong
Valuation
Demanding
Risk
Moderate

Illustrative preview. Thesis Health ≠ investment score — a strong thesis can coexist with a demanding valuation.

Search

Look up any US-listed company by ticker or name.

Understand

A clear thesis: what must go right, key financials with context, bull and bear cases, real risks.

Follow

One click. No configuration required — the thesis is monitored for you.

Monitor

Every new 10-K, 10-Q and 8-K is analyzed once, centrally. When the evidence changes, you know.

Evidence, not opinions

Every claim traces back to a filing or a reported figure. Financial numbers are computed from structured SEC data — never estimated by AI.

A transparent score

Thesis Health is a documented, weighted sum of condition statuses. You can see exactly which condition moved it, when, and why.

Not a stock-picking service

We never say buy, sell or hold. We track whether the evidence behind a defined thesis is holding up.

Simple pricing

Free

€0

  • Stock search & company overview
  • TRB Base Thesis & Thesis Health
  • Key metrics, top risks, bull/bear summary
  • Up to 3 watchlist stocks
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Pro

€12.99/month

  • Up to 25 watchlist stocks
  • Full thesis, financial analysis & evidence
  • Thesis history & latest changes
  • Email alerts when a thesis materially changes
  • Advanced financial metrics & historical comparisons
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Catalyst Radar Coming Soon

Automatically detect material contracts, acquisitions, guidance changes, management changes and other important developments.