People use “investment memo” as if it were one document. It is at least three. The same deal, written for an investment committee, for a principal making a hold-or-sell call, and for a lender, are different documents with different jobs. Confusing them is how a memo ends up too long for the reader who has to act and too thin for the one who has to approve.
The IC memo
Audience: an investment committee deciding whether to commit capital. Its job is to let smart people who did not source the deal reach a defensible yes or no. A complete IC memo runs the full arc:
- Executive summary and recommendation, up front and unambiguous.
- Market thesis — why this asset, this submarket, now.
- Business plan — what you will do and what it costs.
- Underwriting and sensitivities — base case plus the downside that matters.
- Risk framework — the three or four things that could break the deal, and the mitigant for each.
The discipline is candor about risk. A memo that only argues for the deal tells the committee nothing they can use.
The decision memo
Audience: a principal or owner choosing between paths — hold versus sell, refinance versus recapitalize. The job is not to approve a transaction but to frame a choice. A good decision memo lays the alternatives side by side on the same assumptions, shows the return and risk of each, and makes a recommendation the reader can act on in one sitting. It is shorter than an IC memo and sharper — every page exists to clarify the trade-off.
The lender memo
Audience: a credit officer sizing and pricing a loan. The job is to answer one question — does the cash flow service the debt through a downside. It leads with the security: in-place income, debt-service coverage, debt yield, and the sponsor's track record. The equity story that dominates an IC memo is secondary here; the lender is underwriting protection, not upside.
Written in the sponsor's voice
Whichever memo it is, it should read as if the sponsor wrote it — their brand, their voice, their standards of proof. A memo that reads like a template invites the reader to discount it. The underwriting underneath has to be right; the writing is what gets the right answer read and believed.
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