Angel investors
How can an angel assess portfolio overlap before investing in an early marketplace startup?
an early marketplace startup: Assess overlap by the underlying exposures and dependencies of the portfolio, not only company labels.
Assess overlap by the underlying exposures and dependencies of the portfolio, not only company labels. Different startups can share buyers, infrastructure, geography, financing conditions, or a single market cycle. Diversification does not eliminate the risk of loss.
Start with the decision
Create a look-through map using available information. Compare the new company's exposures with existing holdings and identify missing data. Use hypothetical examples for learning rather than prescribing a personal allocation or number of investments.
The illustrative scenario
This is an educational workbook. The company or fund and all numerical inputs below are fictional. They are not ADIN results, customer claims, market benchmarks, or a forecast.
The fictional company connects independent repair businesses with commercial property managers. Initial transactions happen in one city. The founder reports total booking value, but revenue depends on completed jobs and the platform's actual take.
Supply listings are not the same as available, reliable capacity. Booking value, collected revenue, cancellations, and repeat demand must be separated.
Turn the scenario into an evidence decision
Consider a review of an early marketplace startup in which a confident explanation arrives before the supporting records. Start with the first question in the table. Write down what an answer would change: the next interview, the experiment's scope, a request for specialist review, or a decision to wait. A question without a consequence can produce a longer document while adding little understanding.
Next, inspect the record named in the table and record its date, owner, permission boundary, and limitations. Inspect completed transaction cohorts, cancellation reasons, provider retention, and contribution costs by market. Obtain permission before contacting participants or sharing their transaction details. If the record contradicts the explanation, preserve both accounts and ask which definition, period, or workflow differs. Do not silently select the version that makes the opportunity look strongest.
Finish with a conditional statement: if the specified evidence supports the claim under these conditions, take the named next step; otherwise investigate the unresolved question. An exposure map is a discussion tool. It does not establish independence between outcomes or a safe portfolio size, and illiquid holdings may prevent adjustments when circumstances change. This worked exercise is about the decision process. It does not assert that a fictional company has met a real diligence standard or that a template can authorize an investment.
| Item | Illustration |
|---|---|
| Decision question | Which buyers overlap? |
| Case-specific constraint | Supply listings are not the same as available, reliable capacity. Booking value, collected revenue, cancellations, and repeat demand must be separated. |
| Record to inspect | Inspect completed transaction cohorts, cancellation reasons, provider retention, and contribution costs by market. Obtain permission before contacting participants or sharing their transaction details. |
| Comparison to preserve | Compare a completed, repeatable match with the current alternative. Separate demand acquisition from the work needed to fulfill and support each transaction. |
| Unresolved case question | Which bookings completed? |
Use this worksheet
Answer the questions with a source, date, owner, and next action. Mark an unknown as unknown. Use public or permissioned information and involve a qualified specialist when a question requires expertise beyond the team’s competence.
- Which buyers overlap?
- What dependency is shared?
- What information is missing?
- Which adverse event affects several holdings?
- How would the new investment change exposure?
Questions specific to this scenario
- Which bookings completed?
- What brings a buyer back?
- How much local support does each market need?
Inspect completed transaction cohorts, cancellation reasons, provider retention, and contribution costs by market. Obtain permission before contacting participants or sharing their transaction details.
A concrete next test
Choose one completed match and one cancelled booking. Trace acquisition, fulfillment, payment, and support costs for each. Ask what would bring both sides back without an incentive so the inquiry separates transaction volume from a repeatable local marketplace.
Interpret the result
An exposure map is a discussion tool. It does not establish independence between outcomes or a safe portfolio size, and illiquid holdings may prevent adjustments when circumstances change.
Compare a completed, repeatable match with the current alternative. Separate demand acquisition from the work needed to fulfill and support each transaction.
Sources and method
These primary resources provide background for the concepts. The fictional scenario, calculations, and worksheet are ADIN educational examples; the sources do not report or validate those invented results. Reviewed October 11, 2026.