Summary
Fernando Ulrich analyzes Brazil's worsening fiscal situation under current government, the global spike in long-term US yields alongside dollar weakness, historic intervention supporting the Japanese yen, sustainability concerns in the AI sector with extreme volatility in Korean tech stocks, China's strategic influence over oil prices, and a security flaw in a Bitcoin hardware wallet.
- Brazilian public debt nears pandemic peak at 96% of GDP using international methodology, with no fiscal correction in sight.
- US 30-year and 10-year Treasury yields surge to multi-year highs, yet the dollar index weakens.
- Bank of Japan and US Treasury intervene directly to strengthen the yen, first US intervention in yen since 1998.
- Circular financing among AI companies (e.g., Nvidia funding its own clients) raises concerns about demand sustainability.
- South Korean stocks (KOSPI) and AI semiconductor names experience massive volatility, with SK Hynix and Samsung swinging double digits intraday.
- China acts as a demand-side stabilizer in crude oil by managing import volumes, making future oil prices sensitive to its purchasing decisions.
- A vulnerability in Coldcard MK3 hardware wallet allowed theft of hundreds of bitcoins, prompting a security warning for self-custody users.
- Political commentary on Brazil-Argentina diplomatic tensions and mixed signals from the Trump administration's trade and geopolitical policies.