[Disclosure] HANMI Semiconductor (042700) Designated as Short-Selling Overheated Stock: Short Transactions Prohibited for April 1

Source Fact: Financial Supervisory Service Electronic Disclosure System (DART) / 2025.03.31

Disclosure Type: Designation of Short-Selling Overheated Stock (Short-Selling Ban Applied)

💡 3-Second Summary

Triggered by a sudden and abnormal surge in aggressive short-selling volume, the Korea Exchange (KRX) has officially designated HANMI Semiconductor as a “Short-Selling Overheated Stock.” Consequently, all short-selling transactions will be completely banned during the regular and after-hours sessions on April 1. If the stock price falls by 5% or more on the day of the ban, the restriction will be automatically extended.

📊 1. [Key Disclosure Content & Summary of Major Figures]

• Target Stock: HANMI Semiconductor Common Stock (Standard Ticker: KR7042700005 / Short Ticker: 042700)
• Regulatory Measures: Comprehensive short-selling ban across regular and after-hours trading sessions for exactly one day on April 1, 2025 (Short transactions will resume normal execution starting April 2).
• Ban Extension Criteria: If the closing stock price declines by -5% or more on the day of the ban, the temporary short-selling restriction will be regulatory extended.
• Statutory Ground: Article 17 of the KOSPI Market Business Regulation & Article 24-3 of the Enforcement Rules.
• Exempted Transactions: Liquidity Provider (LP) and Market Maker (MM) quotes, hedging transactions for ELW·ETF·ETN products, and hedging orders for derivatives market-making purposes remain exceptionally permitted.

📈 2. [Expert View: Analysis of Impact on Stock Price]

• Temporary Relief from Artificial Downward Pressure Inducing Technical Rebound (Short-Term Positive): Being designated as a short-selling overheated stock on the very first trading day of April highlights that short-selling attacks against HANMI reached a temporary peak at the end of March. Freezing the most volatile downward pressure vehicle for April 1 grants immediate technical breathing room, making a near-term technical rebound highly likely as selling pressure cools off.
• The Importance of Defending the Closing Print to Trigger Short-Covering: Smart money will focus heavily on whether the price holds the -5% threshold during the ban day. If the stock holds firm or bounces into positive territory without the aid of fresh short-selling entries, it could force short-sellers to aggressively buy back shares to limit losses, triggering a sudden “Short-Covering” rally that dynamically lifts near-term price momentum.

📝 Editor’s Comment (by K-STOCK Editor)

Despite HANMI Semiconductor’s unassailable equipment leadership and structural multi-year growth in the HBM sector, this regulatory disclosure proves how aggressively short sellers have attempted to disrupt the stock’s near-term sentiment. While shutting off fresh short entries on April 1 provides immediate structural relief, institutional long blocks should stay sharp, as exceptional liquidity provider (LP) hedging allocations can still route alternative sell orders into the book. Rather than executing emotional panic sales based on the word “overheated,” the prudent strategy here is to stay disciplined and observe the closing print to ensure HANMI holds the -5% support line, setting up a firm technical floor for a potential short-squeeze.

📢 Disclaimer and Source Information

• Source: This content has been structured and newly written based on official data submitted to the Financial Supervisory Service’s Electronic Disclosure System (DART).
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