Mercados do Golfo caem com novos ataques dos Houthis à Arábia Saudita, elevando o risco regional https://www.reuters.com/world/middle-east/gulf-markets-fall-fresh-houthi-strikes-saudi-arabia-raise-regional-risk-2026-10-22/?taid=6ad9f4e852e12100015aa7ea https://www.reuters.com/world/middle-east/gulf-markets-fall-fresh-houthi-strikes-saudi-arabia-raise-regional-risk-2026-10-22/?taid=6ad9f4e852e12100015aa7ea