人民币兑美元中间价较上日调升42点至6.8067，中间价升值至2023年2月10日以来最高。

亚马逊(AMZN.O)：7月2日至7月5日期间，亚马逊Prime会员每加仑汽油可节省0.5美元。

In June the Asset Management Association of China (AMAC) convened leading quantitative private fund managers to review AUM and year‑on‑year changes, research and trading headcount and allocation, strategy features and evolution, compliance and industry risks. Participants discussed flagship strategy capacity limits and differentiated measures to address factor homogeneity, and recent YTD operational changes. Risk sessions covered use of leverage tools — direct market access (DMA) and total‑return swaps — reported leverage multiples, funds’ stress‑testing and risk‑control frameworks, and liquidity risk from crowded/homogenous trading.