【今日重點關注的財經數據與事件：2026年8月21日 週五】 ① 待定 恆生指數公司宣佈二季度指數檢討結果 ② 07:01 英國8月Gfk消費者信心指數 ③ 07:30 日本7月核心CPI年率 ④ 14:00 英國7月公共部門淨借款 ⑤ 14:00 英國7月季調後零售銷售月率 ⑥ 15:15 法國8月製造業PMI初值 ⑦ 15:30 德國8月製造業PMI初值 ⑧ 16:00 歐元區8月製造業PMI初值 ⑨ 16:30 英國8月製造業PMI初值 ⑩ 16:30 英國8月服務業PMI初值 ⑪ 20:30 加拿大6月零售銷售月率 ⑫ 21:45 美國8月標普全球製造業PMI初值 ⑬ 21:45 美國8月標普全球服務業PMI初值 ⑭ 22:00 歐元區8月消費者信心指數初值 ⑮ 次日01:00 美國至8月21日當週石油鑽井總數

Citadel Securities says signs of widening demand elasticity are emerging in the AI market. Since end‑June, the usage‑weighted token price has fallen about 40%, yet H100 GPU rental rates have rebounded from June lows and the top 1% of AI‑spending firms saw per‑user spend rise roughly 49% MoM in July. Combined revenue at hyperscale cloud providers reached $106.3bn in Q2, up about 43% YoY, indicating new compute capacity is finding paying demand. Market metrics for AI economics are shifting from raw token prices to cost per completed effective task. Capable open‑source models can cut customer costs while preserving near‑comparable outputs, expanding usage and supporting GPU and cloud demand but weakening pricing power of closed‑source frontier models. Citadel cautions the compute‑price market is still young and opaque; current high utilization does not guarantee a multi‑year supply‑demand balance, and large efficiency gains from architectural changes could reduce compute demand below levels implied by existing capex.

Iran's Islamic Revolutionary Guard Corps (IRGC) said Yemen's Houthi forces are increasingly capable and that, should a new war erupt, they would employ more destructive weapons.