Daily market news archive

Market news for September 28, 2026

Historical briefing from the earlier short-summary format.

5 source-linked historical summaries from the earlier format.

Latest edition updated Sep 28, 3:23 PM ET · Reporting cutoff Sep 28, 8:45 AM ET

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2 linked sources ·

Treasury yields climb to multi-year highs amid geopolitical tensions and bond selloff

Original summary · What happened

US Treasury yields surged to multi-year peaks as selling pressure intensified across global government debt markets. The two-year yield reached 4.952 percent, marking its highest intraday mark since May 2024, while the ten-year yield rose to 5.272 percent, hitting levels unseen since mid-2007. The bond selloff deepened as crude oil remained elevated following the American rejection of an Iranian proposal concerning the Strait of Hormuz, alongside market anticipation of approaching economic data prints.

2 linked sources ·

Geopolitical stalemate over Strait of Hormuz weighs on equities as oil climbs

Original summary · What happened

Equities dropped while crude oil prices climbed as persistent tensions between the United States and Iran over the Strait of Hormuz rattled financial markets. The diplomatic impasse heightened investor concerns that expensive energy could prolong inflationary pressures, potentially prompting the Federal Reserve to pursue more aggressive interest rate hikes. This ongoing uncertainty undercut equity performance across major indexes while contributing to upward momentum in sovereign bond yields across international sessions.

2 linked sources ·

Fed Governor Cook highlights inflation risks from AI infrastructure and energy costs

Original summary · What happened

Federal Reserve Governor Lisa Cook cautioned that rapid artificial intelligence infrastructure expansion alongside elevated crude oil prices will likely maintain upward pressure on inflation across the coming months. Cook stated that central bank officials will have to evaluate what policy rate adjustments may be necessary to steer inflation back toward the official target. Her commentary highlights emerging macroeconomic risks, showing how technology investment demand and energy market disruption could complicate the central bank's price stability efforts.

2 linked sources ·

Nvidia expands share repurchase authorization to 235 billion dollars

Original summary · What happened

Nvidia's board of directors authorized a 150 billion dollar expansion to its existing share repurchase program, lifting the semiconductor company's total buyback authorization to 235 billion dollars. The capital allocation program marks the largest corporate stock repurchase authorization in United States history, surpassing previous records set by Apple. Alongside the expanded repurchase plan, the company also introduced a dedicated security platform intended to supervise autonomous artificial intelligence agents and prevent operational misbehavior within enterprise environments.

2 linked sources ·

China signals potential approval for tech firms to purchase Nvidia professional chips

Original summary · What happened

Chinese regulatory authorities may permit major domestic technology enterprises, including ByteDance and Alibaba, to purchase Nvidia's RTX PRO 5500 microprocessors. China's Ministry of Industry and Information Technology has notified select domestic companies of its plan to authorize acquisitions of the high-end hardware, which is designed specifically for advanced professional computing systems. The reported regulatory flexibility comes amid ongoing scrutiny surrounding artificial intelligence hardware exports and indicates a potential opening for enterprise workstation chip sales across the Chinese market.