The Ibovespa tripped a circuit breaker at the open, fell as much as 17% and closed down almost 14% after Lula da Silva's reelection. Long-term rates jumped nearly 3 percentage points, and the Treasury pulled two bond auctions and began buying debt back. The broad emerging-markets fund ended down 0.3%.
Brazil's stock market did not open on Monday so much as stop. Within minutes of the bell in São Paulo, the B3 exchange halted trading under its circuit-breaker rule, the first time it had done so since March 2020.
When trading resumed, the selling continued. The Ibovespa fell as much as 17.34% to 169,516.43, against Friday's close of 205,083. By late morning it was on course for its worst day since Sept. 10, 1998, when it fell 15.8% during the Russian debt moratorium, according to Reuters. It recovered part of the loss in the afternoon and finished down 13.91% at 176,553.38. That still made it the index's worst day since March 2020, when it fell 14.78% on March 12 and 13.92% on March 16.
The trigger was Sunday's runoff, in which President Luiz Inácio Lula da Silva defeated Flávio Bolsonaro after trailing him in the first round. Investors had spent most of October buying Brazilian assets on the expectation of a change in government and a tighter fiscal stance. Through Friday, the Ibovespa was up about 10% for the month and about 27% for the year. Monday's decline erased the October gain in a single session.
The currency and the curve
The real moved as violently as stocks. The dollar opened at R$5.425, up 8.7% from Friday's close of R$4.993, and soon reached about R$5.60, a gain of more than 12%. Dollar futures on B3 hit their daily limit even after the exchange had widened it to 8.4% from 6% for the session, and B3 later widened it again, to 12%. Late in the New York afternoon, the dollar was at about R$5.41, up about 8.4% on the day and well off its high.
Interest-rate futures told the same story with more precision. The January 2031 contract hit the exchange's upper limit of 14.46% within half an hour of the open, up from 12.641% at Friday's settlement. B3 widened the limits, and by early afternoon in Brasília the contract was near 15.49%, about 285 basis points higher. The January 2027 contract, which tracks expectations for the next year of central bank policy, rose as high as 13.795% early in the session, from 13.464%.
Brazil's National Treasury cancelled the inflation-linked and fixed-rate bond auctions scheduled for Oct. 27 and Oct. 29, while keeping Tuesday's sale of floating-rate notes. Short-term rates eased slightly after the announcement. Later in the morning, the Treasury bought back about R$7.1 billion of fixed-rate notes and scheduled a buyback of inflation-linked notes. The central bank had not announced any intervention beyond its routine swap rollover as of early afternoon.
Who sold, and who didn't
Inside Brazil, the market sorted itself by currency exposure. At midday, exporters with dollar revenue were rising: pulp producer Suzano gained about 10%, Vale 6.6%, Embraer 5.85%, Klabin 2.7% and Gerdau 2.5%. Domestic-facing companies collapsed. Retailer Magazine Luiza was down 55%, homebuilder Cyrela 44%, the exchange's real-estate index 28% and its consumer index 26%.
U.S.-listed shares of domestic-facing companies fell hardest. Brokerage XP closed down 48%, losing nearly half its value. Payments company StoneCo fell about 27%, Nubank about 17% and MercadoLibre about 8%. Petrobras's U.S. shares ended down about 14%. The iShares MSCI Brazil ETF closed at $34.15, down 19.8% from Friday's close of $42.59, on volume of about 298 million shares. That dollar-denominated loss combines the fall in local stocks with the fall in the real.
The contagion that didn't arrive
The more striking number is the one that barely moved. The iShares MSCI Emerging Markets ETF closed down 0.31%. The Mexican peso, which had weakened about half a percent in the morning as traders sold emerging-market assets broadly, according to the currency firm Monex, was firmer against the dollar late in the day. The S&P 500 closed up 0.70%.
That made Monday a Brazilian event rather than an emerging-markets one. Investors repriced one country's fiscal outlook, not the asset class.
The political overhang
Bolsonaro has said he will not recognize the result and will seek an annulment, contesting a Supreme Court justice's order extending voting by two hours. Members of the electoral court have privately assessed that the request will not prosper, the Brazilian news site G1 reported, and the court has denied that party inspectors were removed from the counting room. Electoral-law specialists describe the chances of an annulment as remote.
The fiscal question is where attention is moving. Public debt is above 82% of gross domestic product. Candidates reported for finance minister include central bank President Gabriel Galípolo, current Finance Minister Dario Durigan and three politicians. The government is expected to announce spending-containment measures in the coming weeks and to target the center of its fiscal goal, according to the newspaper O Globo.
Two readings
One reading is that this is an overshoot that stays contained. Contagion was limited, the index closed more than 3 percentage points above its low, the real recovered part of its loss, exporters rose, the annulment request looks unlikely to succeed, and a credible finance minister, possibly the sitting central bank chief, could narrow the risk premium quickly.
The other is that Monday marks a lasting reset in what investors demand to hold Brazilian risk. A move of nearly 3 percentage points in long rates is not a positioning unwind alone, and a Treasury that has pulled its fixed-rate and inflation-linked sales and is buying debt back is telling investors it will not lock in these rates. If the fiscal premium stays, the cost reaches the government's own funding.
What to watch
Tuesday's open in São Paulo and whether the afternoon recovery holds, the settlement levels for rate futures, any central bank intervention, the size of the Treasury's buybacks and when it resumes fixed-rate and inflation-linked auctions, the formal status of the annulment request, the finance minister nomination and the 2027 budget.