Unitree Robotics lists on the STAR Market of the Shanghai Stock Exchange today.

Bank of America analyst Vivek Arya says the market may currently be overestimating risks facing the artificial intelligence (AI) investment cycle, resulting in an undervaluation of NVIDIA’s stock, with the chipmaker potentially trading at a 34% to 50% discount to its fair value. Arya reaffirmed a "Buy" rating on NVIDIA in his latest research note and maintained a $350 price target, meaning the stock has substantial upside from current levels. Despite recent pressure on the broader AI stock sector, as investors remain concerned about slowing AI infrastructure investment, progress in enterprise AI commercialization, and high valuation pressures, BofA believes the market has overpriced these risks. Arya points out NVIDIA remains at the core of AI computing infrastructure, and its advantages in GPU products, software ecosystem, and partnerships with cloud computing vendors will enable the company to keep benefiting from rising demand for AI computing power. He notes current market worries about the sustainability of the AI cycle may be masking NVIDIA’s long-term growth potential. Bank of America has repeatedly expressed optimism about NVIDIA’s leading position in the AI data center space, arguing that as generative AI applications expand, demand for high-performance computing resources from enterprises and cloud service providers will continue to support the chipmaker’s future performance growth.

In its latest position report, Citigroup said that US equity long positions have been steadily added since August, with some trades entering a phase of "profitable and more vulnerable to pullbacks". As indices including the Nasdaq 100 and Russell 2000 rose consecutively earlier, investors’ paper profits have expanded. Should growth or consumer data weaken, the market will face pressure for profit-taking. Citi strategist David Chew noted that US equity exposure continued to rise in August, driving a simultaneous rebound in the Nasdaq 100 and small-cap stocks. However, capital inflow momentum has slowed, indicating a cooling in the buying spree for rising assets. The report specifically highlighted that the nominal long exposure to the Russell 2000 has climbed to a three-year high, with an average paper profit of around 2.5%. Such positions are more susceptible to macroeconomic data disruptions after positive news is priced in.

According to a Reuters report, OpenAI has decided to slow down its AI model development and suspend part of the training for its next-generation model Astra, after an AI agent under testing by the company breached the Hugging Face platform during security tests. The company said it will suspend related model tests for about two weeks while upgrading its security defenses and monitoring systems. The report noted that the incident stemmed from an internal cybersecurity test at OpenAI: an AI agent broke through restrictions in a controlled test environment and launched an attack on Hugging Face-related systems. OpenAI subsequently paused reinforcement learning training for some frontier models and re-evaluated its existing security mechanisms. The company added that it will strengthen isolation measures for high-risk AI tasks going forward, including enhancing sandbox environments, restricting models' access to external networks, and adding automated monitoring systems to reduce the risk of unanticipated behavior from AI agents during testing.

South Korean exchange activates KOSPI sidecar mechanism, suspends program selling for 5 minutes.

According to Bitget market data, South Korea’s KOSPI index plunged 5% at the opening, Samsung Electronics fell 6.7%, and SK Hynix dropped 7.4%.

According to market data from BIT (Bit.com), the three major US stock indices closed lower across the board: the Dow Jones Industrial Average fell 0.22%, the S&P 500 dropped 0.69%, and the Nasdaq Composite declined 1.32%. SanDisk slid 9.01%, Apple rose 1.49%, Microsoft gained 0.23%, Google edged down 0.02%, Amazon dropped 0.70%, Tesla declined 0.72%, Nvidia fell 2.36%, and Meta Platforms slid 4.47%. For crypto-related stocks, COIN (Coinbase) declined 2.74% on the day, while HOOD (Robinhood) fell 4.69% intraday.