7月9日，巴菲特指數（滬深300市值/GDP）回升至92.94%，大週期看仍在十年波動區間上端附近震盪；股債性價比指標——滬深300指數股權風險溢價（ERP）降至5.16%，7月以來基本保持在5.2%附近波動，處於2024年10月以來波動區間下端，暗示目前股市相對國債收益優勢不明顯。 -------- 注：1、巴菲特指數是通過將股市總市值和GDP來比較，判斷目前股市是否高估，通常70-100%爲正常估值，低於該區間爲低估，高於該區間爲高估。 2、滬深300指數風險溢價（ERP）主要對比滬深300收益和國債收益率，統計近10年數據可以發現該指標和股指有明顯反向關係，每次股市都處於底部區域時，風險溢價均超過6%，也就是當ERP≥6%，股市有投資性價比，而當ERP≤4%時，則股市往往接近或處於階段性高點，投資性價比低甚至要小心回調風險。

Nanya Technology said at an investor briefing that next‑generation AI acceleration platforms including Rubin Ultra and TPA are lifting HBM bit demand and crowding out traditional DRAM capacity, and that global DRAM should remain supply‑deficit through 2028. The company forecasts capacity will grow about 69% in 2026–2028. A new 5A fab will deploy 1C/1D nm process nodes and add roughly 45,000 wafers of capacity, improving wafer‑bit output. Nanya expects bit shipments to rise 8% in 2027 and 53% in 2028 to 6.75 billion Gb and 10.33 billion Gb, respectively. It said Q2 average per‑Gb prices have not fully reflected recent contract price increases and timing of renewals with large long‑term customers, leaving upside risk to Q3 ASP.

OpenAI founder Altman said OpenAI’s latest AI model improves token efficiency by 54% on agent-based programming tasks.