Build a Bull, Base and Bear Stock Thesis Fast
Turn verified research into balanced scenarios, key assumptions, catalysts, risks, and thesis-break conditions.
Prompt Overview
Featured AI Partner
Tips For You
A thesis becomes useful when it states what evidence would prove it wrong, not only what could make it profitable.
From Operations TeamNexusAi TechnologyProblem It Solves
Investors often form a single narrative and then interpret every new fact as confirmation, without defining alternative outcomes or evidence that would invalidate the thesis.
Three-Way Scenario Model
Prevents a single narrative from controlling the analysis.
Assumption Table
Shows which operating and valuation inputs drive outcomes.
Thesis Breakers
Defines evidence that invalidates the current view.
Catalyst Monitor
Connects future events to scenario confirmation.
AI Prompt Instructions
Act as a balanced equity research scenario analyst.
Your task is to convert supplied verified company research into bull, base, and bear scenarios without issuing personalised financial advice. Do not invent financials, probabilities, target prices, market data, or catalysts. If valuation data is insufficient, focus on operating scenarios and identify the missing inputs.
Inputs:
- Company and ticker: [insert]
- Investor time horizon: [insert]
- Verified business, financial, industry, management, and valuation research: [paste]
- Current market price and date, if relevant: [insert from verified source]
- Existing thesis or market debate: [insert]
Produce:
1. Core Investment Debate
State the one to three questions most responsible for differences between optimistic and pessimistic views.
2. Base-Case Thesis
Define expected revenue drivers, margins, cash flow, capital allocation, competitive position, balance sheet, valuation framework, catalysts, and major assumptions.
3. Bull-Case Thesis
Identify what must outperform, why it could occur, evidence supporting it, operating and financial consequences, potential valuation effect, catalysts, and early confirmation signals.
4. Bear-Case Thesis
Identify what could deteriorate, evidence supporting concern, operating and financial consequences, balance-sheet or dilution risk, valuation effect, and early warning signals.
5. Scenario Assumption Table
Compare volume, price, growth, margin, reinvestment, capital intensity, cash conversion, share count, debt, terminal or exit assumptions, and other relevant drivers. Mark missing data.
6. Probability Discipline
Do not assign precise probabilities without a method. Instead provide relative likelihood, confidence, decisive evidence, and assumptions that remain speculative.
7. Catalyst and Timeline Map
List company-specific events that could reveal which scenario is developing. Include expected evidence rather than invented dates.
8. Thesis Breakers
Define facts that would invalidate each scenario, force a valuation update, or require abandoning the research thesis.
9. Variant-Perception Questions
Identify which assumptions may differ from market expectations and what evidence is needed to prove the difference.
10. Research Priorities
Rank the missing evidence by its ability to change scenario outcomes or valuation.
11. Balanced Thesis Summary
End with the base view, strongest bull evidence, strongest bear evidence, current uncertainty, next catalyst, and a neutral watch / research further / insufficient evidence conclusion.
Output requirements:
- Use symmetric scrutiny for bull and bear cases.
- Separate operating assumptions from valuation assumptions.
- Do not present scenarios as forecasts with guaranteed outcomes.
- End with a monitoring checklist that can be updated after every earnings report.
Expected Outcome
A balanced bull, base and bear thesis with scenario assumptions, evidence, catalysts, thesis breakers, variant-perception questions, and monitoring priorities.
Implementation Journey
Generate the scenarios
Paste verified company research into Claude, ChatGPT, Gemini, Perplexity, or Fiscal.ai and expect balanced operating scenarios and evidence gaps.
15–25 minutesValidate scenario assumptions
Check financial assumptions against filings and Fiscal.ai or another trusted financial database, then verify industry assumptions through primary sources.
45–120 minutesCreate the monitoring record
Store thesis breakers, key metrics, catalysts, and research gaps in Notion, Excel, or the investment research system for future updates.
20–40 minutes
