In a significant move to harmonize its equity trading environment, Chinese regulators have officially removed the 'special protection' mechanism for the market’s most troubled companies. Effective July 6, the price fluctuation limits for ST (Special Treatment) and *ST (at risk of delisting) stocks on the Shanghai and Shenzhen main boards have been doubled from 5% to 10%. This adjustment brings these distressed assets into alignment with the standard daily limits for regular main-board stocks, signaling a departure from the paternalistic constraints that have long defined China’s approach to risk management in the retail-heavy market.
The regulatory shift, first proposed in April by the Shanghai and Shenzhen stock exchanges, is a critical component of the broader transition to a registration-based IPO system. By expanding the volatility corridor, the China Securities Regulatory Commission (CSRC) aims to improve pricing efficiency and reduce the structural discrepancies that previously incentivized speculative 'shell-trading.' For years, the 5% limit was viewed by critics as a tool that slowed down necessary price corrections, allowing failing companies to linger on the boards as targets for short-term speculation rather than facing market-driven liquidation.
Currently, over 150 companies are affected by the new rule, representing a combined market capitalization that includes several heavyweights. Notable names like ST Renfu and *ST Wingtech, both with valuations exceeding 20 billion RMB, are now subject to the wider 10% band. The financial health of this group remains precarious; data shows that more than 60% of these 'at-risk' companies reported net losses in the first quarter of the year. Historically, many of these entities were treated as speculative bets on potential restructuring or 'backdoor listings,' but those days appear to be numbered.
Market observers note that the adjustment is part of a 'one-two punch' alongside China’s increasingly stringent delisting regulations. By allowing for faster price discovery—both upward and downward—the exchanges are forcing investors to confront the reality of corporate distress without the artificial buffer of tight price floors. This move is designed to purge 'zombie companies' from the indices more rapidly, rewarding fundamental analysis over the high-stakes gambling that has characterized the lower tiers of the A-share market for decades.