突发暴雷，证监会立案调查

Core Viewpoint - The China Securities Regulatory Commission (CSRC) has launched an investigation into Ningbo Tianpu Rubber Technology Co., Ltd. (Tianpu) due to abnormal fluctuations in its stock price, indicating potential significant omissions in disclosures [2] Group 1: Company Background - Tianpu is a popular stock in the market, primarily engaged in the production of automotive rubber hoses. The company saw a dramatic increase in its stock price after announcing a takeover by Zhonghao Xinying Technology Co., Ltd. in August 2022, leading to a 1663.20% increase in stock price by the end of 2025, making it the second-best performing stock of the year [5] - Zhonghao Xinying, the acquiring company, is an AI chip design firm founded by Yang Gongyifan, a former Google chief engineer, claiming to be the only domestic company capable of developing and mass-producing high-performance TPU architecture AI chips [5] Group 2: Stock Price Movement and Investigation - Following the completion of the acquisition and the establishment of a chip design subsidiary, Tianpu's stock price surged, reaching 218.02 yuan per share by December 31, 2025, with its market capitalization skyrocketing from under 4 billion yuan to 29.232 billion yuan [5] - On January 5, the Shanghai Stock Exchange issued a regulatory warning to Tianpu for inaccurate and incomplete information disclosure, as well as insufficient risk warnings [6] - The CSRC's investigation is focused on Tianpu's failure to adequately disclose its lack of plans for AI-related business despite knowing the potential impact on stock price, which may mislead investors [9]