Writing

What we learn from reading loan books.

Non-bank lending, portfolio measurement and the capital behind it. Every figure carries its source, and anything modelled says so.

Latest
Capital1.30xcollateral behind each unit of debt
5 min read

What a fideicomiso is in Mexican lender financing, and the advance it carries

How a Mexican trust holds a lender's loans for the fund that financed them, and the aforo four deals with published terms required: 1.27x to 1.30x, an advance near 77% to 79%.

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Risk90days late moves an instalment loan
4 min read

What cartera vencida means for a Mexican lender

The CNBV day counts that move a Mexican loan into cartera vencida, why banks call it etapa 3 since 2022, and why an unregulated SOFOM's number needs its own rule checked.

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Capital1.0xwhen a cohort has paid back what it was lent
4 min read

How to measure collections from a loan tape

Cash a cohort has paid back, divided by the principal it was lent, read by months since origination. Why collection efficiency answers a different question, and the three tape mistakes a fund checks for.

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Capital5yearsof cohorts the SEC and agencies ask for
6 min read

What a static pool is

A cohort of loans from one period, measured against its own original principal for life. Why the denominator is the point, what the SEC and the Mexican agencies ask for, and how an agency turns it into one rate.

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Capital69fieldsin one template. 24 wins a term sheet
9 min read

What a loan tape is

One row per loan at a stated cut-off date. What the file has to carry, how the fields change by asset class, and why a tape without a data dictionary cannot be checked.

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Capital28itemsbefore a first institutional facility
8 min read

The 28 items in a fund's first request

Eight lettered blocks and 28 numbered items, in the order a fund's own analyst files the answers, and 8 of them ask only that you reconcile your own documents against each other.

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Risk4documentsbetween one audit and the next
8 min read

How an investor watches a book it does not own

Four signed artefacts on a contractual cadence, recomputed rather than read, with consequences tied to arithmetic. Monitoring from the seat that has no access.

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Capital37questionsbefore anyone asks about yield
21 min read

What a fund asks on the first call, and the order of everything after it

The loan tape before yield, then six gates a credit committee clears one at a time, 37 items in all, and which of them a connected loan tape closes without anyone typing.

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Risk11monthsbetween two verified numbers
18 min read

The eleven dark months

An audit reads a closed period once a year. What a fund prices is the gap between two audit dates, and that gap is where the failures this market remembers were found after the fact.

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Mexico559lendersin one official count, not in the other
23 min read

Mexico cannot count its own lenders

Two official counts of the same sector, 559 apart, and no published loan book behind either. Who lends to Mexican small businesses, on whose money, and where the money stops.

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The short answers

Questions funds ask about a Mexican lender

Each article answers one question. Here is the answer in a line, and the article that argues it.

  1. What does a fund ask a lender on the first call?

    Your loan tape, one row per loan at a stated cut-off date, before yield or strategy. Then six gates in a fixed order.

  2. What documents does a private credit fund request from a non-bank lender?

    28 items in eight lettered blocks, and 8 of them ask only that you reconcile your own documents against each other.

  3. How does an investor monitor a loan book it does not own between audits?

    Through four signed documents on a contractual cadence, recomputed rather than read, with consequences tied to the arithmetic.

  4. What is a static pool?

    The loans originated in one period, tracked for life against their own original principal. The SEC and Mexican agencies ask for five years.

  5. What is a loan tape?

    One row per loan at a stated cut-off date, carrying 8 to 282 fields by schema, and uncheckable without its data dictionary.

  6. How do you measure collections from a loan tape?

    Divide all the cash a cohort has paid back by the principal it was lent, month by month since origination. At 1.0 times it has returned what it received.

  7. What does a fund actually price in a lender's book?

    Not the audited year but the gap between two audit dates, where the failures this market remembers were found after the fact.

  8. How does a Mexican SOFOM get institutional funding?

    45.0% from commercial banks and 25.0% from development banks (Banxico, December 2025), then multilaterals, CEBURES and foreign private credit.

  9. What does cartera vencida mean for a Mexican lender?

    For banks and regulated lenders, a loan due in one payment enters it 30 days late, an instalment loan at 90, revolving credit at 60. Called etapa 3 since 2022; an unregulated lender sets its own rule.

  10. What is a fideicomiso in Mexican lender financing?

    A trust that holds the lender's loans and pays the fund first. Four deals with published aforo required 1.27x to 1.30x, an advance near 77% to 79%.

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