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since 2009
Tuesday, September 22, 2026

Santander Brasil Share Swap Premium Has Shrunk to Almost Nothing

By · September 22, 2026 · 8 min read

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Brazil · Markets

Key Facts

  • The filing — Banco Santander lodged its exchange offer with the SEC on 21 September and asked Brazil’s CVM to register it as a foreign issuer and approve a BDR programme.
  • The terms — 0.4056 Santander shares for each Santander Brasil unit, unchanged since July. Nothing has been approved yet.
  • The premium — 15 percent against 30 July prices, but only about 1.6 percent against 15 September prices, because the Brazilian shares rose 19 percent in between.
  • Not a delisting — the prospectus says the bank stays listed on B3 and that a squeeze-out of holders who refuse is not legally available.
  • The escape hatch — holders who do not tender get 30 days after the auction to sell to Santander at the same ratio.
  • The timetable — no deadline has been set. Santander expects to complete in the first half of 2027.

A deal announced as a 15 percent premium is now worth barely more than the market price, and the offer document says so itself.

If you hold Santander Brasil units, the Santander Brasil share swap is no longer the deal that was announced in July. The exchange ratio has not moved. The share prices have, and they have moved in a direction that leaves very little on the table for anyone thinking of accepting.

The Farol Santander tower in São Paulo, the bank at the centre of the Santander Brasil share swap
The Altino Arantes building, now Farol Santander, was built for Banespa — the São Paulo state bank Santander bought in 2000.
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What was filed on Monday

Banco Santander, the Spanish parent, filed a Form F-4 registration statement with the US Securities and Exchange Commission on 21 September. It is marked subject to completion and has not been declared effective. On the same day Santander Brasil disclosed that requests had gone to Brazil’s securities regulator, the CVM, and to the exchange, B3, covering four things.

There are four requests. Register the Spanish parent as a foreign issuer in Category A. Register a BDR programme. Admit those BDRs to trading on B3. And register the Brazilian offer itself. A BDR, or Brazilian Depositary Receipt, is a certificate traded in São Paulo and backed by a share held abroad. Here each one represents a single new Santander share. Holders are not shareholders of the parent directly, and depend on a Brazilian depositary bank to pass on dividends and voting instructions.

The distinction that matters is between asking and getting. None of these registrations has been granted. Santander’s own document says it expects to obtain them before the offer starts. Until then there is no offer to accept and no deadline to miss.

Why the Santander Brasil share swap looks different now

The terms were set on 30 July, using that day’s closing prices. Santander shares closed at 12.248 euros (about US$14.11 at that day’s rate). Santander Brasil units closed at R$25.25 (about US$4.98). The ratio of 0.4056 parent shares per unit implied R$29.04 (about US$5.72), which is the 15 percent premium everybody reported.

Then the Brazilian shares went up. By 15 September the units were at R$30.07 (about US$5.84) while the parent had risen only modestly. On those prices the premium is about 1.6 percent on units, 1.4 percent on common shares and 1.2 percent on the New York receipts. The offer document publishes these numbers itself.

It also concedes two more. Measured over the twelve months to 30 July, the offer is a 3.6 percent discount to the average unit price. Against the high in that period it is a 22.6 percent discount. JPMorgan noted that the comparable 2014 deal carried a 20 percent premium.

The timing question analysts raised

The reference date was the day after Santander Brasil reported a weak second quarter. Recurring profit came in at R$3.0 billion (about US$583 million), down 17.6 percent on the year, and the units fell 7.37 percent on the news. The premium was then struck against that lower price.

JPMorgan called the proposal disappointing next to 2014. Citi measured it against the pre-results price and put the effective premium near 5 percent. BTG Pactual reached the same figure. Safra described it as a soft anchor rather than the firm floor a cash offer would provide.

There is a governance wrinkle too. UBS BB cut its rating on the units in late August, then in September was engaged by Santander as the independent appraiser and delivered its report on 18 September. The prospectus states plainly that the appraiser’s duties are owed to Santander alone and that the report is not a fairness opinion.

What happens if you do nothing

The offer is not a going-private, whatever the shorthand suggests. Santander’s own release says it does not seek a delisting, and the prospectus confirms that the shares and units carry on trading on B3 in the traditional segment after completion.

More to the point, holders who refuse cannot be forced out. Because the registration as a listed company is not being cancelled, the parent has no right to a squeeze-out or a compulsory redemption. There are no appraisal rights either — Brazilian law does not attach them to a voluntary tender offer.

What does exist is a second bite. Less than 15 percent of the shares will sit in unrelated hands after the auction. That triggers a rule giving every holder who did not tender 30 calendar days to exchange with Santander on the same terms. It is not automatic: Brazilian holders must give written notice and sign the agreement at a branch in person or through an attorney. And the ratio is not adjusted for Selic in the meantime, because the consideration is shares rather than cash.

Why this matters beyond the shareholder register

The parent already owns about 89.7 percent of the capital. The free float is roughly 10.3 percent, worth somewhere around R$11.5 billion (about US$2.2 billion) against a market value of R$111.4 billion (about US$21.6 billion). So the money involved is modest next to what the deal does to liquidity.

Santander Brasil already trades about R$130 million (about US$25 million) a day. Itaú trades R$1,089 million (about US$211 million). HSBC cut the stock to hold on 15 September precisely on that point, expecting liquidity to fall to minimum levels, and put its target at R$31 (about US$6.02).

For anyone saving or investing in Brazil, that is the real consequence. A bank with 76.2 million customers and about 49,000 staff as of March becomes progressively harder to own as a Brazilian asset. Accepting swaps a bank geared to Brazilian interest rates for euro exposure to a global parent. Refusing keeps the Brazilian exposure, but in a market with fewer buyers on the other side when you want out. Neither choice is obviously right, and the shrinking premium is what makes it a choice at all rather than a windfall.

Frequently Asked Questions

What exactly is being offered for each Santander Brasil unit?

Each unit, ticker SANB11, would be exchanged for 0.4056 Banco Santander shares, delivered as a BDR in Brazil or an ADS in New York. Common and preferred shares get 0.2028 each. The ratio has not changed since it was announced on 30 July.

Will Santander Brasil be taken off the stock exchange?

No. The prospectus states the shares and units continue trading on B3 in the traditional segment after the offer. The New York receipts are different and may be delisted depending on how many holders accept.

Can I be forced to sell if most other holders accept?

No. Because the company is not cancelling its registration, there is no squeeze-out available under Brazilian law. Holders who decline also get a 30-day window after the auction to exchange on the same terms if they change their mind.

When would any of this actually happen?

No expiration date has been set, and the registrations have not been granted. Santander expects completion in the first half of 2027, and once launched the Brazilian offer must stay open for at least 20 calendar days.

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