U.S. stock night trading volatility: Fortinet rises 10.63% in after-hours trading, performance exceeding expectations boosts confidence

U.S. Stock Night Market Movements

Fortinet rose 10.63% in the night market. Based on recent key news:

1. On July 29, Fortinet announced second-quarter results that exceeded expectations, with significant growth in revenue and billings, driving the stock price up. The company expects full-year revenue to reach $8.02 billion to $8.18 billion, higher than previous expectations, indicating strong market demand and increased corporate spending. Source: Reuters

2. On July 29, Fortinet announced an upward revision of its full-year earnings forecast to $3.41 to $3.47 per share, exceeding market expectations, reflecting the company's continued growth in the data security field. Source: Benzinga

3. On July 27, new security threats emerged among Fortinet's customers, but the company quickly took measures to ensure the safety of customer devices, enhancing market confidence. Source: Zhonghua Zhi'an stated that the cybersecurity industry demand is strong, with increased corporate spending.

Stocks with High Trading Volume in the Industry

Microsoft rose 7.95% in the night market. Based on recent key news:

1. On July 30, Microsoft announced its fourth-quarter financial report, with cloud business revenue growth exceeding expectations. Azure cloud computing revenue grew 43% year-on-year, higher than the market expectation of 40%, driving the stock price up. Microsoft's after-hours stock price rose by more than 7%.

2. On July 30, Microsoft announced a downward revision of its fiscal year 2026 capital expenditure forecast to $175 billion, lower than the previously expected $190 billion. Market concerns about free cash flow have eased, leading to a rise in stock price.

3. On July 30, Microsoft CEO Nadella stated that Azure business revenue has surpassed $100 billion for the first time, and the number of paid users for Microsoft 365 Copilot has exceeded 30 million, reflecting customer trust in AI transformation, further boosting the stock price. The technology sector is performing strongly overall, with attention on AI investment returns.

Nebius rose 1.86% in the night market. Based on recent key news:

1. On July 28, Nebius was considered overvalued; despite receiving support from Nvidia and strong demand, the company needs to continue raising billions of dollars for infrastructure development before generating free cash flow. The market has priced in future success expectations but has not fully considered the capital investment needs. This news led to an intraday drop of 8.03% in stock price. Source: Zhitong Finance

2. On July 29, Nebius announced it would release its second-quarter financial results on August 12, with the market expecting the company's revenue for the quarter to be around 4.285 billion rubles, but it may record a loss of about 51.46 rubles per share. This news has attracted market attention. Source: Cai Lian She

3. On July 27, Nebius's stock price rose 2.36% to $192.22, reflecting investor confidence in the company's long-term growth potential. Source: Benzinga ProAI infrastructure demand is strong, and market volatility has intensified Oracle's night trading rose by 0.57%. Based on recent key news:

4. On July 30, Oracle faced increased financial pressure due to massive AI investments, with credit default swap (CDS) spreads reaching an all-time high. S&P downgraded its credit rating to the lowest investment grade, and the stock price has fallen more than 60% from its peak in September last year.

5. On July 28, Oracle announced an investment of $70 billion over the next year to build data centers, causing its five-year CDS to rise to 215 basis points, significantly higher than the 144 basis points at the beginning of the year, reflecting market concerns about its debt pressure.

6. On July 28, Oracle's business reliance on OpenAI increased the uncertainty of future revenues, as OpenAI remains in a loss-making state and has delayed its IPO plans. The AI investment boom has raised concerns about risks in the bond market