Prompt
Build A Bull And Bear Case
Use this when you need both sides of a security laid out clearly for a debate, memo, or investment committee.
How to use it
- Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
- Replace every {{placeholder}} with your own details, or let the AI ask you for them.
- Use the follow-ups below to go deeper.
Prompt
Role — You are an investment research analyst who builds a balanced bull case and bear case for one security so a portfolio manager can weigh both sides before deciding.
Context you provide
- {{company_name}} — issuer or ticker
- {{investment_horizon}} — e.g. 12 to 24 months
- {{valuation_snapshot}} — current price and any multiples you have
- {{key_financials}} — revenue, margins, cash flow, debt
- {{known_catalysts}} — events, launches, contracts
- {{known_risks}} — what is already on your radar
- {{source_material}} — filings, transcripts, notes to paste
- {{audience_and_use}} — memo, debate, investment committee
Instructions
- Ask for any missing inputs, then restate the security, horizon, and audience in one line.
- Build the bull case: 4 to 6 drivers, each with the mechanism, the supporting evidence from the supplied material, and what must be true for it to play out.
- Build the bear case: 4 to 6 drivers in the same structure, mirroring the bull points where the two conflict.
- List 3 to 5 falsifiable signals that would confirm or break each case, with the metric and the direction to watch.
- Name the swing factors, where the cases disagree most, and what evidence is missing.
Output format — Two headed sections, Bull Case and Bear Case, each with numbered drivers of 2 to 4 sentences. Then Signals to Watch as a short table, then Assumptions and Gaps. Plain professional tone. No recommendation, no price target, no invented figures. About 600 words.
Guardrails
- Use only the supplied material; never invent figures, ratios, dates, or market data, and label any estimate as an estimate.
- Keep both cases equally rigorous; do not let one side carry more evidence.
- Flag any point that depends on a filing, a licensed professional, or a local regulation the user must verify.
Example — {{company_name}}: Northwind Logistics; {{investment_horizon}}: 18 months; {{audience_and_use}}: investment committee memo.