Check a thesis

Stock Thesis Checker

Check a stock thesis against dated public evidence, source-linked claims, a forced bear case, and missing-evidence flags.

Reviewed 2026-06-27Updated 2026-06-27
The question

I have a stock thesis and want to know whether public evidence supports it, contradicts it, or leaves important proof missing.

What this answers

A stock thesis checker tests your company thesis against public evidence. You enter a ticker and thesis; ThesisCheck returns sourced support, a forced bear case, and missing-evidence flags without giving investment advice.

Definition

What is a stock thesis checker?

A stock thesis checker helps you test whether an investment thesis is supported by public evidence, contradicted by filings, or missing proof. ThesisCheck is built for investors who already have a thesis and want a source-linked review.

  • Ticker and thesis in.
  • Dated evidence and source-linked claims out.
  • Support, contradiction, context, and missing evidence separated instead of blended into a generic summary.
Workflow

How a thesis check works

The workflow is meant to be inspectable: start with a thesis, review the evidence trail, then look at support, bear-case findings, and gaps separately.

01
Enter ticker and thesis

Start with a company and the claim you actually want tested.

02
Break the thesis into checkable claims

The review separates the story into evidence-bearing claims instead of writing one blended paragraph.

03
Attach dated source context

Material claims are tied to source label, date, and locator where public evidence is shown.

04
Force the bear case

The output looks for facts that weaken the thesis and marks what could not be proven.

Mini example

Example input and output

Input thesis

Microsoft's AI and cloud investments can keep Azure growth compounding without breaking margins.

Checked claim

Azure and other cloud services revenue was still growing quickly in FY2025.

Supported2025-07-30

Evidence summary: The annual report reports 34% growth for Azure and other cloud services revenue, driven by consumption-based services.

Microsoft FY2025 Annual Report · 2025-07-30 · Segment Results
What the user learns

The growth claim has direct source support, but the broader margin thesis still needs separate checks for capital intensity and return on AI infrastructure spend.

Comparison

Manual filing review vs structured thesis check

WorkflowManual filing reviewStructured thesis check
Starting point

You decide which filings and sections to inspect.

The workflow starts from the thesis and asks what evidence would prove or weaken it.

Output

Notes, highlights, and judgment calls spread across documents.

A source-linked ledger of supported, bear-case, and missing-evidence findings.

Risk

Easy to miss a buried contradiction or over-weight a headline metric.

Contradictions and missing proof are promoted into the review instead of hidden.

Non-advice boundary. ThesisCheck provides descriptive, source-checked company research only. It does not provide buy, sell, hold, rating, sizing, or price-target recommendations.