Citigroup's Banamex Roadshow: The US$9 Billion Charge Is Certain, the US$3 Billion Proceeds Are Not

Citigroup said on Oct. 13 that it will deconsolidate Banamex in early 2027, and in the week of Oct. 19 it hosted the analysts of the banks that will place the shares in Mexico City. Chairman Fernando Chico Pardo, chief executive Edgardo del Rincon and chief financial officer Patricio Diez de Bonilla walked the room through the business, according to Bloomberg. There is no public price, no published range and no prospectus, so rests on what management says in the room the entire January pricing exercise.

The February block fixed 499 million shares at MXN 43,000 million, or MXN 86.17 each. Priced off the two blocks, the implied equity value of the whole bank is about MXN 179 billion, roughly US$10.4 billion, against local book of roughly MXN 211 billion. Implied price to earnings on Banamex's second-quarter earnings annualised is close to seven times, which is prices a Mexican bank below where its own buyer group would pay for a US regional and is the gap the January order book has to close or confirm.

Two independent private blocks also agree on what Banamex is made of. The December 2025 deal at 0.80 times book and 0.95 times tangible book, and the February 2026 deal at 0.85 times book and 1.01 times tangible book, both imply roughly MXN 33.3 billion of goodwill and intangibles — about 16% of book, or close to US$1.9 billion. That matters for the January pricing because US investors will anchor on tangible book: a sale at one times reported book is already a premium price for the goodwill Citi is carrying.

On a standalone basis Banamex looks like a decent bank. Second-quarter net income was MXN 6,672 million, return on equity 12.4%, return on assets 1.9% and the efficiency ratio 49.0%. Management has been rebuilding: operating expenses fell 13% year over year in the second quarter and the efficiency ratio improved to 53.1% from 60.8% a year earlier on Citigroup's reporting, with return on equity up to about 11% from 10% when Citigroup Mexico and Banamex began reporting separately in late 2024. None of that explains a price below book. The credit book does.

Credit is where the discount comes from. Citigroup's Mexico consumer book produced US$433 million of net credit losses inside US$532 million of provisions in the third quarter, with Mexico consumer losses up 46% year over year on higher volumes and a seasoning portfolio, and the annualised net charge-off rate for Mexico consumer was 6.37% in the first quarter against 5.51% a year earlier, with loans more than 90 days past due at 1.71% of balances. About 40% of Mexico consumer loans are credit cards, and cards generated roughly 60% of the segment's net credit losses in the first quarter.

Citi has told investors that when Banamex meets held-for-sale criteria it will recycle about US$9 billion of cumulative translation adjustment losses through the income statement in early 2027, hitting net income, earnings per share and return on tangible common equity. The charge is non-cash and, on the company's own accounting, regulatory-capital neutral: the losses sit outside the capital calculation, and the cumulative effect of the 2025 and 2026 sales plus the deconsolidation leaves regulatory capital unchanged. The December 2025 tranche alone released US$1.6 billion of translation losses with no capital effect, which is the precedent.

The capital arithmetic runs the other way from the earnings arithmetic, and that is the point of the exit. Citigroup's tangible common equity is about US$168 billion at US$101.59 a share, so US$9 billion of translation losses is roughly5% of tangible book, or about US$5.44 a share before tax effects. Meanwhile the denominator of the capital ratio improves: Banamex's risk-weighted assets come out, certain capital deductions are released, and management expects the combination to be slightly accretive to CET1. The capital floor also moves — the binding minimum steps up from 11.6% to 12.1% in January 2028 against a directional target of 13.1% — so a bank that wants to keep buying back stock needs the asset base to shrink faster than the floor rises.

The offering is a chain, and each link has a reason to want a different price. Citigroup wants the highest price it can get for 51% of an asset it no longer wants to run; the eight banks alongside it want fees and a relationship in Mexico; the seven private buyers of the 24% block want an exit at or above the 0.85 times book they paid; and the buyers of the US$900 million of hybrid paper want to be paid9.50% for standing behind the same balance sheet.

Near term, the news flow is procedural and the stakes are specific: a launch, a book and a price in the first quarter of 2027, then a deconsolidation entry and a roughly US$9 billion non-cash charge that will dominate reported earnings without touching regulatory capital.

Longer term, the exit is a test of whether Citigroup can convert a low-return, capital-heavy consumer balance sheet in Mexico into returns on the five franchises it wants to grow. The 11% to 13% return-on-tangible-equity target for 2027 and 2028, and the 14% to 15% sustainable ambition, are both stated without Mexico in the numbers.

Strip the ceremony away and the Mexico City meetings are price discovery for Citi's own balance sheet. Citigroup has sold 49% of Banamex at 0.80 and 0.85 times book, has accepted a roughly US$9 billion non-cash charge to get out, and expects a slightly higher capital ratio afterward. The remaining 51% is what is still unpriced, and it is worth somewhere between US$10.4 billion and US$15.2 billion depending on where January clears. A print above book hands Citi about a quarter of its buyback pace in one cheque and marks the residual stake higher; a print below book leaves a write-down with no cash, a consumer credit book with a 5.9% cost of risk, and a pre-IPO register that cannot sell.

What would change the view: a bookbuild that covers the target several times over with an anchor domestic institution, a peso that holds its gains into January so the proceeds convert into more dollars, and Mexico consumer charge-offs printing below 6% in the fourth quarter. What would confirm the bear case: an order book that needs a discount to the February block to clear, a further deterioration in the card book that pushes Banamex's return on equity below 12%, or an investor day that resets the 2027 capital-return ambition on the back of a smaller balance sheet. The date to watch is not the earnings date. It is the pricing date.