美股三大指数集体上涨，热门中概股走低

Group 1 - The US stock market saw all three major indices rise, with the Nasdaq and S&P 500 reaching new historical highs, as of June 30 [1] - In the Chinese concept stock sector, Beike fell over 3%, while Meituan, BOSS Zhipin, and Weibo dropped over 2%, and JD and Xpeng Motors declined over 1% [1] - Nvidia's stock reached a new high, but insiders sold over $1 billion worth of shares in the past 12 months, indicating potential concerns about the stock's future performance [6] Group 2 - The US Senate is set to vote on the "Big and Beautiful" bill on June 30, with results expected later that evening or the following morning [2] - There are indications that the deadline for tariff negotiations set by the Trump administration may be flexible, potentially extending into September [3] - Morgan Stanley economists caution investors against expecting interest rate cuts from the Federal Reserve in July and September, despite recent dovish comments from officials [5] Group 3 - Tesla's Model Y completed its first "fully autonomous delivery," marking a significant milestone in automotive history [7] - JD.com clarified that it has not issued any stablecoin and warned that any information regarding the issuance of JD stablecoin is fraudulent [8]