ChatGPT Prompts for an Investment Memo: Evidence, Risks and Decision Gates

Quick answer: An investment memo should make a decision auditable: the thesis, contrary evidence, assumptions and unresolved risks must be visible. Use ChatGPT to build a source-linked draft from verified materials, then have the investment team challenge it. A fluent memo with weak evidence is still a weak memo.

Investment committees often see the polished conclusion long after the messy research. That creates a risk: qualifications disappear as notes become a narrative. A good memo keeps the chain of reasoning intact. Readers should be able to distinguish a fact in a source document from the author’s interpretation and a scenario that has not happened.

Investor education from TryBuy Editorial Team. General analytical prompts, not personalised investment, legal or tax advice. Examples are hypothetical and do not describe TryBuy’s performance or proposed investment terms.

Create a source spine

Assign references to the documents and interviews used in the memo. Include the period covered, version and limits of each source. The assistant should be able to point to the basis of a statement without inventing page numbers. Where the source is a private conversation, identify it as such and keep distribution permissions appropriate.

Write the strongest opposing case

A risk section should not be a list of generic concerns appended after a confident recommendation. Explain what evidence would make the thesis wrong and how that affects the decision. A finding can be favourable while still having limited scope. For example, one repeat order can establish an event without proving repeatable demand across a customer base.

Separate a decision from its conditions

A proposal to continue diligence differs from approval to invest. State which decision is being requested and which evidence must arrive first. Record dissent and unresolved issues instead of smoothing them into consensus. If the memo uses a model, include the version and assumptions so another reviewer can reproduce the important calculation.

A worked example to test the reasoning

Hypothetical example: management expects a distributor agreement to drive expansion, but only an unsigned draft exists. The memo can discuss the scenario while identifying execution, counterpart and economics as unresolved. It should not include projected distributor revenue in a section headed 'verified traction'. The decision may be to continue diligence, not to approve funding.

Evidence checks to keep beside the analysis

10 copyable ChatGPT prompts

Replace brackets with authorised information. ChatGPT can organise supplied material. Official analysis guidance. Check account data controls. Capabilities vary by account. Keep sources, calculations and uncertainties inspectable.

1. Create the memo structure

Build an investment memo outline for [stage and business model] using my committee’s mandate [paste]. Distinguish thesis, evidence, assumptions, contrary case, unresolved questions and the exact decision requested.

2. Draft from sources

Draft a memo from these authorised materials [files]. Attach source references to material statements. Use unknown where evidence is missing and separate historical results from forecasts.

3. Audit the language

Review this memo [paste] for words that overstate certainty, such as guaranteed, proven or inevitable. Replace them with wording that matches the supplied evidence without making every statement vague.

4. Build the opposing case

Write the strongest evidence-based case against the proposed thesis [paste], using [sources]. Do not invent allegations. Distinguish contradictory evidence from missing evidence and show implications for the decision.

5. Trace calculations

List every calculation in [memo] with inputs, units, formula and model version. Identify results that cannot be reproduced from the supplied files. Do not estimate missing inputs.

6. Record dissent

Turn these committee notes [paste] into a neutral record of agreements, disagreements and open issues. Preserve differing interpretations and do not manufacture consensus.

7. Define conditions

Draft conditions for the next decision from [issues]. Separate document requests, specialist conclusions and commercial milestones. Make clear whether the request is further diligence or investment approval.

8. Shorten without losing caveats

Condense this memo [paste] to an executive summary while retaining the thesis, strongest contrary evidence, key assumptions and unresolved conditions. Do not remove qualifications merely to sound confident.

9. rojo-team the draft

Review this investment memo template draft [paste] against its supplied sources [files]. Identify unsupported certainty, missing denominators, unstated assumptions and conclusions that go beyond the evidence. Do not invent a contradiction to sound critical.

10. Create the next-decision brief

Turn this investment memo analysis [paste] into a short decision brief: observed evidence, strongest uncertainty, next document or professional review needed, and the decision that can reasonably be made now. Preserve unresolved issues.

Review the output before using it

Trace the material claims to their sources, reproduce important arithmetic and keep conflicting records visible. Use an approved environment for confidential material. A useful AI answer should make a missing input easier to identify; it should not make a weak source appear independently verified.

Frequently asked questions

Can a memo be persuasive and balanced?

Yes. Explain the positive case clearly while keeping the contrary evidence and assumptions visible.

What is the most useful final check?

Ask a colleague to reproduce the key calculation and trace the central claims back to their sources.

Continue the investor workflow

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• ChatGPT Prompts for Cap Table Dilution: Seed-Round Ownership Checks

Cover: AI-generated editorial concept, not an actual investor meeting, company record or evidence of endorsement. This AI-assisted guide provides reusable analytical prompts, not a documented test of investment performance.

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