PromptSharp › Daily briefs › Finance › September 22, 2026

Finance prompt of the day

September 22, 2026 · for Investment banking, sales & trading, equity research, FP&A. One sharp, copy-paste prompt — free, every weekday.

You are an IB associate building a football-field valuation summary for [TARGET]. I will paste the ranges from each method (DCF, trading comps, precedent transactions, LBO, 52-week range, analyst targets — whichever I provide). Produce:
1. A TABLE listing each methodology with its low/high, the key driver of that range, and how much weight it deserves and why.
2. A synthesized VALUATION RANGE with the reasoning for where the defensible midpoint sits.
3. The methods that disagree most and the economic reason for the gap.
4. The 3 assumptions a client is most likely to challenge, and your answer to each.
Use only ranges I provide; do not invent a method's output.

Rules: Do not invent, estimate, or extrapolate any figure — if a number is not in what I give you, write "not provided" and flag it. Mark every claim I should verify externally before relying on it. Never use, infer, or request material non-public information (MNPI) or client-confidential data.

What changed for Finance

How to run “Football-field valuation range synthesis”, step by step

The situation this prompt is built for: You have several valuation methods and need to synthesize them into a defensible range with a clear story. Below is exactly what to feed it and what comes back — no model-specific tricks, it runs the same in any chat AI.

What each placeholder does

Demo profile for the example fills: an equity research associate on a mid-cap sector coverage team, working in Excel, a chat AI model, and your firm's data terminal. Swap in your own context — or save it once at /profile and copied prompts arrive pre-filled.

• [TARGET] — this is the input the whole output quality hangs on. Demo fill: the specific name plus one line of context — e.g. “Meridian Foods, packaged-food carve-out, sponsor-backed, first institutional process”. Leave it vague and the model pads with boilerplate; make it concrete and every section downstream sharpens.

What the model hands back

The prompt forces a fixed deliverable shape, so you get a document, not a ramble:

1. A TABLE listing each methodology with its low/high, the key driver of that range, and how much weight it deserves and why.
2. A synthesized VALUATION RANGE with the reasoning for where the defensible midpoint sits.
3. The methods that disagree most and the economic reason for the gap.
4. The 3 assumptions a client is most likely to challenge, and your answer to each.

Why this structure works

A football field is a persuasion tool only if the weighting logic and the reconciliation of disagreements are explicit — this builds both, and pre-empts the client's hardest questions.

On Pro, the method weighting and the presentation framing match your sector and the deal context (control vs minority, growth vs value) from your saved profile.

When to use it — and when not to

Reach for it when

• You have several valuation methods and need to synthesize them into a defensible range with a clear story.
• You can actually supply the inputs it asks for ([TARGET]) — this prompt is an amplifier for real context, not a substitute for it.
• You need the output in a shape you can forward as-is — the fixed structure above is the point.

Skip it when

• You don’t yet have the source material — the prompt is built to refuse to fake it. Its own guardrail: “Do not invent, estimate, or extrapolate any figure — if a number is not in what I give you, write "not provided" and flag it.” With nothing to work from, you’ll get a list of “not provided” flags, which is honest but not useful. Collect the inputs first.
• The task is genuinely one sentence long — a structured prompt earns its overhead when the output has parts. For quick one-off questions, just ask.

Adapting today’s prompt for adjacent roles

“Football-field valuation range synthesis” sits in the Banking lane of the finance pool. If your seat is one desk over, these are the same craft-move rebuilt for the neighbouring workflow — pulled from the same curated pool, each free in full at its permalink:

You are a sales-trader drafting a client email. Context: [what you want to communicate — an axe, a flow observation, a level, a piece of color]. Produce: 1. A subject…

You are an analyst scoring the management team of [COMPANY]. I will give the history/facts (M&A, buybacks, dividends, capex, debt, comp structure, insider ownership,…

You are an FP&A / equity analyst building a revenue bridge for [COMPANY], period [A] to [B]. I will give the data. Produce: 1. A BRIDGE decomposing the change into…

Common failure modes (and the fixes)

• Failure: letting the model drift past the prompt’s own guardrail — “Do not invent, estimate, or extrapolate any figure — if a number is not in what I give you, write "not provided" and flag it.” Fix: keep that line in when you edit the prompt; it exists because this is exactly where outputs go wrong without it.
• Failure: letting the model drift past the prompt’s own guardrail — “Mark every claim I should verify externally before relying on it.” Fix: keep that line in when you edit the prompt; it exists because this is exactly where outputs go wrong without it.
• Failure: letting the model drift past the prompt’s own guardrail — “Never use, infer, or request material non-public information (MNPI) or client-confidential data.” Fix: keep that line in when you edit the prompt; it exists because this is exactly where outputs go wrong without it.
• Failure: filling [TARGET] with a vague summary. The output can only be as specific as this input — generic context in, generic deliverable out. Fix: paste raw specifics (real names, real numbers, real constraints), then trim the model’s output, not your input.
• Failure: accepting the first pass. Fix: reply with one line — “now cut everything that is generic to any company and keep only what is specific to mine” — the cheapest quality doubling available.

Where AI is landing for investment banking right now

Context for today’s prompt, from the same screened sources the daily brief reads. Our read, with sources linked — the pattern across items like these is consistent: the professionals getting leverage from AI are the ones feeding it real working context, which is exactly the muscle today’s prompt trains.

• [All-In] Blake Scholl: Why Plane Speed Stalled, Supersonic Commercial Flight, & Revolutionizing the Engine (podcast) — (0:00) Welcome Blake Scholl! (5:11) Solving the sonic boom & legalizing supersonic flight (7:59) The pivot to powering data centers (10:38) Jason joins: data center demand,…

Quick answers

Is “Football-field valuation range synthesis” free to use?

Yes — every weekday issue of the PromptSharp Finance publishes one full pool prompt free on the web, and it stays free in the archive. Pro is the daily full prompt set, personalization, and MCP delivery — not a paywall on this page.

Which AI model does this prompt work with?

Any of them. Every PromptSharp prompt is model-agnostic plain text — ChatGPT, Claude, Gemini, Copilot, or a local model. No plugins, no custom GPTs; paste and run.

How is the finance prompt of the day chosen?

Deterministic rotation over the curated finance pool — currently 75 prompts across 5 sections — the same single source the paid brief reads. Same date, same prompt: the archive never silently changes under you.

What goes in the [BRACKETED] placeholders?

Your context — the walkthrough above covers each one. The short rule: the more concrete the fill (real names, numbers, constraints), the sharper the output. Save your details once at /profile and web copies arrive pre-filled.

How do I get this in my inbox instead?

The capture form above — PromptSharp Finance status is honest: live briefs send every weekday; pre-launch verticals email their free list the day the email edition starts.

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