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More →Brazil’s Stock Market Crashes After Lula’s Upset Victory
Brazil’s stock market lost more than $200 billion in value at the open on Monday after President Luiz Inácio Lula da Silva beat Senator Flávio Bolsonaro in Sunday’s runoff, a result that prediction markets had priced at roughly a one in five chance. The iShares MSCI Brazil ETF, ticker EWZ, a basket of Brazilian stocks that trades in New York like a single share, fell as much as 26% from Friday’s close of about $42.60, touching $31.40 before trimming the loss to about 23% at $32.84 by 10:38 a.m. ET. That is memecoin-sized volatility for a fund built around Brazil’s biggest companies, and it leaves EWZ roughly where it started 2026 after a 34% gain through Friday. The dollar rose as much as 12% against the real on Friday, while the Ibovespa, Brazil’s benchmark stock index, fell as much as 17% to about 170,000 points. For a dollar-based investor, those moves at their worst combine to a loss of about 26%, in line with the ETF’s low. B3, the São Paulo exchange, halted trading for 30 minutes after the Ibovespa fell 10% from Friday’s close, its first circuit breaker since the COVID-19 pandemic. A circuit breaker is an automatic pause meant to slow panic selling, but the index kept sliding after trading resumed. Investors had been positioning for the opposite result since Bolsonaro unexpectedly finished first in the Oct. 4 first round, with 47.03% of valid votes to Lula’s 45.16%. The Ibovespa jumped 7.85% the next day and EWZ gained more than 10% on bets that Bolsonaro would tighten public finances and open the way to lower interest rates. Monday’s drop erased that rally and, at its lows, left the Ibovespa about 11% below its Oct. 2 close. But Lula didn’t just beat Bolsonaro, he also beat prediction markets. Polymarket gave Bolsonaro an<a href="https://x.com/Polymarket/status/2114003200017575948" target="_blank" rel="nofollow external noopener" class="sc-adb616fe-0 dJryYS">> 82% chance</a> of winning the day before the vote, and Kalshi had him near 80% on Sunday morning. Both platforms are<a href="https://decrypt.co/resources/what-are-decentralized-prediction-markets-myriad-polymarket-kalshi" target="_blank" class="sc-adb616fe-0 dJryYS" rel="nofollow"> prediction markets</a>, where a contract that pays $1 if a candidate wins trades at 80 cents when traders see an 80% chance. Polling pointed to a coin flip rather than a favorite, with the latest Datafolha survey tied at 50% each among valid votes and CNT/MDA showing Bolsonaro ahead 50.5% to 49.5% in mid-October. Lula won 51.79% to 48.21%, a margin of about 4.4 million votes, according to Brazil’s Superior Electoral Court. Bolsonaro said on Sunday night that he does not recognize the result and will ask the courts to annul the election, after pledging in August to respect the outcome. He objected to Supreme Court Justice Cristiano Zanin’s decision to extend voting until 7 p.m. at the request of Lula’s campaign, which he said changed the rules midgame. His own campaign had separately asked for extr
JGB yields rise, AI bubble concerns ease
JGB (Japanese government bond) yields rose as concerns over an AI bubble eased, according to CoinWorld news.
Broadcom and four Wall Street giants raise $63 billion in financing to support Anthropic's chip procurement.
According to CoinWorld news, Broadcom (AVGO.US), together with four major Wall Street financial giants—Bank of America, Blackstone, Citigroup, and Morgan Stanley—arranged a financing transaction of approximately $63 billion to provide major financing support for Anthropic, the world's top AI large-model developer, to purchase AI chips.
Ethereum Foundation: Privacy and security should not be independent
According to CoinWorld news, the Ethereum Foundation stated in a post that, in light of multiple hacking attacks and security vulnerability incidents over the past week, privacy and security should not be regarded as mutually independent goals. When wallets have privacy protection enabled by default, it becomes harder for attackers to exploit users' on-chain transaction history to carry out attacks. The privacy tool kohaku said that its SDK is gradually maturing and has integrated privacy protocols such as tornado cash, railgun, and privacy pools.
The world's largest Bitcoin mining company, Mara Holdings, is suspected of selling 1,000 BTC.
According to data from Bijie.com: Lookonchain monitoring indicates that Mara Holdings, the world's largest Bitcoin mining company, is suspected to have sold 1,000 BTC about 6 hours ago, worth approximately $80.19 million.
Casa security chief: The quantum computing threat to Bitcoin is not yet urgent.
Benzinga reports that Casa's head of security stated that the quantum computing threat currently facing Bitcoin is not urgent, and existing quantum computers are still far from being able to crack Bitcoin's cryptography. However, he warned that upgrading Bitcoin to defend against quantum computing may take 5 to 10 years.
Arthur Hayes：基于Flop Network建立AI算力衍生品市场
BitMEX co-founder and Flop Labs CEO Arthur Hayes proposed in his latest article "The Trifecta" a plan to build an AI computing power spot and derivatives market based on Flop Network. He believes that there is currently no unified global benchmark for computing power prices, and Flop Network can form a computing power reference price, FRCR, by recording the computational volume, time consumed, and Flop payment fees of AI inference tasks. On this basis, users can book computing power up to 30 days in advance and trade corresponding computing power contracts (FCU), thereby supporting quarterly futures and perpetual contracts settled in US dollars. Hayes stated that, following perpetual contracts and the concept of synthetic dollar stablecoins, he hopes AI computing power derivatives will become his third innovation widely adopted by financial markets.
Asia-Pacific markets opened mixed, with Japanese and South Korean stocks rising on a rebound in U.S. tech shares.
Asian markets opened mixed, with Japanese and South Korean stocks rising as U.S. tech shares rebounded after an AI-driven selloff.
U.S. stocks closed higher, with AI-related shares boosted by Anthropic's IPO filing.
CoinWorld news, according to Reuters, U.S. stocks closed higher, with the S&P 500 and Nasdaq ending weeks of declines. Anthropic's IPO filing lifted market sentiment toward AI-related stocks, and there are numerous market catalysts this week.
Grayscale: Zcash marks its tenth anniversary, and its sustained capacity for innovation stems from the 20% block reward developer funding.
CoinWorld news: Grayscale noted in a report that Zcash (ZEC) celebrates its tenth anniversary this week, and that its continued capacity for innovation stems in part from allocating 20% of block rewards to developer funding. Zcash has evolved from the Sprout pool to Sapling, Orchard, and the Ironwood pool introduced in 2026, the latter adding quantum-resistant addresses and formal verification to address code vulnerabilities. Grayscale hopes and expects that Zcash will continue to expand transaction capacity and prepare for the post-quantum era and AI-driven cybersecurity risks, which may require sustained funding support from multiple parties and efficient allocation.