U.S. stock night market volatility: Alibaba rose 3.10% in the night market, driven by new AI models and Changxin Technology's huge profits

U.S. Stock Night Market Movements

Alibaba rose 3.10% in the night market. Based on recent key news:

1. On July 29, Alibaba released Qwen 3.8-Max-Preview, enhancing AI model capabilities and driving up stock prices. Haitong International pointed out that this model has advantages in inference efficiency and deployment costs, leading to an upward revision of cloud business profit margins, with stock prices rising nearly 3%. Source: Zhitong Finance

2. On July 28, Alibaba achieved substantial paper profits through its stake in Changxin Technology, with investment returns exceeding 20 times. Changxin Technology's market value surpassed 3.28 trillion yuan on its first day of listing, with Alibaba's stake valued at over 170 billion yuan, driving up stock prices. Source: 21 Finance

3. On July 28, market funds shifted towards undervalued tech stocks, benefiting Alibaba from this trend. Global funds are seeking safe investment havens, and tech stocks like Alibaba have regained attention, leading to a rise in stock prices. Source: Zhitong Finance Tech stock inflows, market focuses on AI development

Stocks with High Transaction Volume Rankings in the Industry

Amazon rose 9.77% in the night market. Based on recent key news:

1. On July 31, Amazon's CEO stated in a conference call that the capital expenditure plan for 2026 remains unchanged at approximately $200 billion, with AWS order backlog reaching $496 billion. This news boosted market confidence, driving up stock prices.

2. On July 31, Amazon announced its second-quarter financial report, with net revenue of $200.606 billion, a year-on-year increase of 19.6%, and earnings per share of $5.75, exceeding market expectations. AWS cloud business revenue grew 37% to $42.2 billion, surpassing market expectations. These positive financial data further propelled stock prices upward.

3. On July 31, Amazon announced it received approximately $600 million in tariff-related refunds, which had a positive impact on the company's financial situation and further boosted stock prices. The cloud computing industry performed strongly, with increased investment in artificial intelligence.

Pinduoduo rose 0.42% in the night market. Based on recent key news:

1. On July 28, Pinduoduo rose 11 places in the Fortune Global 500 list, ranking 255th, demonstrating its enhanced competitiveness in the global market and driving up stock prices.

2. On July 28, Pinduoduo made progress in its digital transformation strategy in Xiong'an New Area, promoting the digital upgrade of the entire industrial belt in Hebei, which strengthened market confidence in its future growth.

3. On July 28, Pinduoduo entered the Malaysian market, causing a stir in the retail industry and indicating its expansion potential in the Southeast Asian market, further boosting investor confidence. The industry's digital transformation is accelerating, and market confidence is strengthening.

Sea fell 0.60% in the night market. Based on recent key news:

1. On July 29, Shopee integrated ChatGPT, changing the traffic rules. After integrating ChatGPT, the traffic entry was taken over by AI, increasing the platform's voice and causing stock price fluctuations

2. On July 28, Sea plans to release its second-quarter financial report. Sea will publish its second-quarter financial report on August 11, and the market expects it may affect the stock price.

3. On July 28, Sea executives sold shares. Sea's CCO and General Counsel Wang Yanjun sold 2,700 shares of common stock, which may raise market concerns. Industry rules are being reshaped, and the impact of AI is significant