When should a secondary investor stop diligence?

Diligence has an opportunity cost

The instinct to “get more comfortable” can be expensive. More data is useful only when it has a reasonable chance of changing the decision. Otherwise diligence becomes a way of proving a conclusion the team already had enough evidence to reach.

Start with the binding constraint

Before launching another workstream, name the issue most capable of changing the decision.

• If the problem is mandate fit, more company diligence may be irrelevant.
• If the problem is price, model work matters only if there is realistic room to reprice.
• If the problem is structure, determine whether it is negotiable before deepening company work.
• If the problem is information, identify whether the missing evidence can actually be obtained.
• If the problem is duration, test whether plausible exit paths fit the fund’s constraints.

Use decision value, not curiosity, to prioritize the next question

Investment teams are naturally curious. Interesting companies generate interesting questions. But a question can be intellectually useful without being decision-relevant.

A practical test is: if we knew the answer tomorrow, could it change Stop / Investigate / Reprice / Restructure / Full Underwrite? If not, it probably should not be the next diligence priority.

Continuation vehicles show why structure can be decisive

Morgan Lewis’ 2026 review of 169 continuation vehicles shows how much transaction economics and protections can vary across fee stepdowns, tiered carry, term extensions and key-person provisions. Mercer likewise emphasizes alignment, governance, leverage and exit route. In those transactions, asset quality cannot be isolated from structure.

The point is not to stop diligence early. It is to stop diligence when another cycle cannot earn its cost.