Geopolitical and Macroeconomic Dynamics - The United States administration announced a shift in its Iran strategy toward economic warfare, threatening sweeping consequences for countries providing economic lifelines to Iran[1][10] - The United Arab Emirates cut financial and trade ties with Tehran, significantly impacting Iran's economy which is already facing a record low currency, hyperinflation, and power blackouts[11][15] - Ethiopia's central bank announced an unscheduled special auction to sell 500 million dollars to defend the Ethiopian birr, which is trading around 163 against the dollar with analysts projecting it could weaken to a range of 185 to 195[78][79][83] Monetary Policy and Sovereign Bond Markets - United States Treasury Secretary Scott Bessent initiated a bond buyback plan to rein in long-term borrowing costs, driving Treasury yields and the dollar down while boosting global bond and equity markets[1][6][32] - The United States fiscal deficit is projected to average about 6% of gross domestic product over the next decade, with the Treasury competing with private sector artificial intelligence hyperscalers for long-term bond issuance[32][33] - South Africa's annual inflation eased more than expected to 4.3% in July compared to 5% in June, falling below the median estimate of 4.5%[86] Corporate Earnings and Technology Sector Developments - Moderna shares surged by a record 177% after its Phase 3 melanoma vaccine trial conducted with Merck met primary endpoints, driving the healthcare sector to record highs[3][46][52] - Asian markets rallied led by the technology sector, with SK Hynix shares increasing about 13% after announcing a massive share buyback plan of about 29 billion dollars and raising its shareholder return plan above 50% of accumulated cash flow[7][8][55] - Samsung Electronics reported a shareholder return plan valued at about 72 billion dollars[8]