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What is an Investment Thesis?

An investment thesis is a structured argument for why a stock should be bought or sold. It is not a vague feeling — it is a falsifiable statement with specific supporting pillars, identifiable risks, and measurable milestones. For example: “Long ACME Corp — margin expansion from pricing power + operating leverage as revenue mix shifts to higher-margin software, with a 12-month price target of $150 implying 30% upside.” Professional investors track their theses rigorously because markets are dynamic. New data arrives constantly — earnings results, management changes, competitive moves, regulatory shifts — and each data point either strengthens, weakens, or is irrelevant to the original thesis. The best investors update their views systematically rather than anchoring to their initial position.
A common pitfall is confirmation bias — noticing evidence that supports your thesis while ignoring evidence that challenges it. Tracking disconfirming evidence as rigorously as confirming evidence is what separates disciplined investors from emotional ones.

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Command Syntax

If a ticker is not provided, the command asks: “Which position would you like to review?”

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What It Does

  • New thesis: Walks through capturing the core thesis statement, 3-5 supporting pillars, 3-5 risks, upcoming catalysts, target price, and stop-loss trigger
  • Existing thesis: Logs a new data point, assesses impact on each pillar, updates conviction level (High/Medium/Low), and recommends an action (No change / Increase / Trim / Exit)

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Output

A thesis summary suitable for morning meeting discussion, portfolio review, or risk committee presentation — formatted as concise markdown or a Word document.

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How to Customize

  • To integrate with your portfolio management system, configure the relevant MCP server in .mcp.json
  • To add firm-specific fields (e.g., risk committee categories), edit the thesis-tracker skill file