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1. How did Brazil stablecoins trading react to the election?
Brazil stablecoins trading jumped on Sunday, October 25, as companies moved treasury money into dollar-linked tokens while the presidential runoff was decided. Data from the exchange Mercado Bitcoin showed Tether (USDT) volume up nearly 800% from the previous Sunday and bitcoin (BTC) volume up 865%, with corporate accounts generating 78% of activity. President Luiz Inacio Lula da Silva defeated Flavio Bolsonaro, the candidate markets had favored.
The surge came at a time when conventional venues were closed. Crypto exchanges operate every day of the week, so they became the only place where a company could change its exposure to the Brazilian real in the hours around the vote. That timing helps explain why the weekend figures stood out so sharply against ordinary Sunday activity.
Mercado Bitcoin said the main driver of volume was companies seeking to protect their treasuries. Retail customers made up the remaining 22%. Its USDT turnover was also more than triple the average of the four preceding Sundays, which shows the move was not merely a rebound from an unusually quiet week.
2. Why did companies reach for dollar tokens?
The concern behind the trades was fiscal. Lula's platform includes expanded social spending and a ban on online betting, a measure that would reduce tax revenue. Investors worried that the combination would weigh on public finances, pressure the real and keep borrowing costs elevated.
A government with rising debt, new spending commitments and little room to raise taxes faces a harder task in managing the budget. For a company holding cash in reais, that outlook raises the risk that the currency loses value against the dollar, which would shrink the worth of its reserves when measured in global terms.
Stablecoins offered a quick remedy. Tokens such as USDT and Circle's USDC are designed to track the U.S. dollar, and they can be bought on an exchange within moments using local currency. Pedro Fontes, a research analyst at Mercado Bitcoin, wrote that holding only reais is risky when the exchange rate is under pressure and that stablecoins give investors an easy way to dollarize part of their assets, starting with small amounts. In his words, the episode "reinforces the logic of not relying only on the real."
3. What did exchange data show on Sunday and Monday?
Biscoint, a service that tracks prices and volume across 10 venues including Binance and Mercado Bitcoin, reported that USDT turnover against the real rose 150% from the previous Sunday. USDC, the second-largest stablecoin, rose 318%. Different data providers measure different sets of venues, so the percentages vary, but they point in the same direction.
On Monday, combined USDT and USDC turnover reached 1.84 billion reais, about $350 million, which was 65% higher than the week before. Bitcoin trading rose more than ninefold to 1,336 BTC.
Binance, the world's largest crypto exchange by volume, showed a similar pattern. Bitcoin turnover against the real there rose 370%, and its USDT/BRL market tripled, while the global BTC/USDT pair fell 25%. In other words, activity in Brazilian-currency pairs climbed even as dollar-denominated bitcoin trading elsewhere declined.
4. What happened to the real and Brazilian stocks?
The broader market damage appeared once local trading resumed. On Monday, October 26, the Ibovespa, Brazil's main stock index, fell 14%, its worst performance since March 2020. The dollar rose more than 8% against the real, the largest one-day gain for the dollar since 1999.
Those moves reversed the optimism that had built after the first round of voting three weeks earlier. At that stage Bolsonaro finished ahead of Lula, the Ibovespa jumped 7.7% and the dollar fell more than 4% against the real. Investors were pricing in a change of government and tighter control over public spending.
Lula then became the first presidential candidate in Brazil's modern democracy to win after finishing second in the first round. Companies, however, did not wait for the final count to hedge. The scale of the crypto activity suggests treasury managers regarded the runoff as uncertain enough to justify taking protection in advance, even if it meant trading outside regular market hours.
5. How does a stablecoin hedge against a falling currency?
A stablecoin hedge is simple in principle. A company sells reais for a token that is designed to hold a value of one U.S. dollar, and keeps the token until it wants to return to local currency. If the real falls in the meantime, each token buys more reais than before, so the position preserves purchasing power measured against the dollar.
The approach has practical advantages over conventional foreign-exchange hedging. Opening a dollar account or arranging a currency forward through a bank can require paperwork, minimum sizes and business hours. A crypto exchange account can be funded and traded at any time, including weekends, which is why the election weekend was such a pronounced test.
There are also trade-offs. A stablecoin depends on its issuer maintaining reserves and honoring redemptions, so holders accept issuer risk in place of bank risk. Converting back into reais can incur spreads and fees, and tax and accounting treatment varies by company. These limits explain why the data show treasuries starting with portions of their balances, consistent with the analyst's suggestion to begin with small amounts, instead of moving entire reserves.
6. Why do Brazilian markets move so sharply on political news?
Brazil's financial markets are closely tied to expectations about fiscal discipline. The government's debt, its spending commitments and its ability to raise revenue shape how much investors demand to hold Brazilian bonds and the real. When an election result changes those expectations, repricing can happen within a single session.
The Ibovespa's 14% drop and the dollar's 8% gain illustrate that dynamic. Both figures are extreme by historical standards: the stock index had not fallen so far in a day since the pandemic shock of March 2020, and the currency move was the largest of its kind in more than 25 years. Such readings indicate that the market had positioned for a different outcome and had little time to adjust.
For companies with obligations in several currencies, that volatility is more than an accounting issue. Imported inputs, dollar-denominated debt and foreign supplier contracts all become more expensive when the real weakens, so treasurers have a strong incentive to hold some assets that move in step with the dollar.
7. Did bitcoin and stablecoins behave differently against the real?
Yes. Bitcoin gained 9.4% against the real over the period but slipped 0.2% against USDT. That gap is consistent with investors repricing Brazil's currency after the election rather than buying bitcoin because of a change in its own outlook.
This distinction matters when interpreting the volume numbers. A sharp rise in bitcoin trading against the real does not by itself mean demand for bitcoin increased. If the real weakens, the same coin costs more reais, and anyone who sold reais for crypto before the move captured the difference. The USDT-denominated price, which barely changed, shows that the asset itself was stable while the local currency was not.
Mercado Bitcoin's analyst also noted that a stronger opposition in Congress could complicate fiscal reform. In that scenario, assets priced in global markets become more appealing to holders who worry about domestic policy gridlock. The same reasoning applies to stablecoins, which function as a dollar account that does not depend on a local bank.
8. How did prediction markets miss the Brazil result?
Prediction markets leaned strongly toward the wrong outcome. A preview published on October 24 by Kalshi gave Bolsonaro an 84% chance of winning, even though its own article described the polling as very close. Kalshi and Polymarket have both been blocked in Brazil since April, so local participants could not use them directly.
The vote itself included a controversial two-hour extension of voting time. Lula won the runoff the next day after that preview.
Einar Knobel, CEO and co-founder of TxODDS, said prediction markets were trading on the first-round result, poll headlines and the narrative built around them. "I would not read this as a failure of prediction markets," he said, adding that the markets worked as designed given the information they had. The episode revived an old debate about whether crowd-priced odds capture late shifts in voter behavior or simply amplify the prevailing story.
9. What does the Brazil stablecoins surge mean going forward?
The immediate lesson is that Brazilian companies are using stablecoins as a treasury tool, not only as a trading instrument. A corporate client can hold part of its assets on an exchange such as Mercado Bitcoin, and the platform has previously reported that some corporate clients keep up to 15% of their assets there. When political risk rises, that balance can be converted into dollar tokens in minutes.
The longer-term question is whether the behavior persists once the election is over. Fiscal policy, interest-rate decisions and the composition of Congress will determine how much pressure the real faces in coming months, and with it the appeal of dollar hedges. If the currency stabilizes, some of the Sunday volume may prove a one-time reaction. If concerns about public finances deepen, corporate demand for dollar tokens could stay elevated.
Either way, the weekend showed that in a country with restricted prediction markets and a volatile currency, crypto exchanges can serve as the first venue where political news is priced, ahead of the traditional market open. Analysts and regulators will likely study the weekend data closely as a measure of how deeply stablecoins have entered corporate finance in the country.