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[Disclosure] Jeju Semiconductor (080220) Surges 100% in 15 Days; Designated as ‘Attention’ Stock with ‘Investment Warning’ Notice

Posted on January 22, 2024July 6, 2026 By K-STOCK Editor No Comments on [Disclosure] Jeju Semiconductor (080220) Surges 100% in 15 Days; Designated as ‘Attention’ Stock with ‘Investment Warning’ Notice

Source Fact: Financial Supervisory Service DART / 2024-01-22

Disclosure Type: Notice of Upcoming Designation as Investment Warning Stock

💡 3-Second Summary

Following an explosive rally where its stock price surged over 100% within just 15 trading days, Jeju Semiconductor has received an official warning notice from the Korea Exchange. The stock will be classified under ‘Investment Attention’ status on January 23 for one day, serving as a preliminary step before potential upgrading to a full ‘Investment Warning’ bracket.

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

  • Target Stock: Jeju Semiconductor
  • Effective Date: January 23, 2024 (Designated as an ‘Investment Attention’ stock for 1 trading day)
  • Trigger Event: The closing price on January 22, 2024, advanced by 100% or more compared to its closing price 15 trading days prior.
  • Warning Designation Review Window: From January 23, 2024, to February 5, 2024 (Evaluated daily; if conditions are not met on day T, the review window extends by one day sequentially).
  • Warning Upgrade Criteria (Triggers immediately on the next day if either [1] or [2] is fully met):
    • [1] Short-term Spike: Price up 60%+ compared to 5 days ago AND reaches the highest close within the last 15 days AND outpaces the benchmark index’s growth rate by 5x or more.
    • [2] Mid-to-Long-term Spike: Price up 100%+ compared to 15 days ago AND reaches the highest close within the last 15 days AND outpaces the benchmark index’s growth rate by 3x or more.

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

  • Regulatory Assessment: This action represents Tier 1 (‘Attention’) and the precursor to Tier 2 (‘Warning’) within the Korea Exchange’s market surveillance framework. It acts as an official regulatory acknowledgment of short-term overheating. If upgraded to the ‘Investment Warning’ tier, margin loans and credit purchases for the ticker are completely banned, requiring a 100% cash deposit, which substantially suffocates speculative leverage.
  • Short/Long-term Stock Outlook: In the short term, regulatory visibility frequently prompts sudden profit-taking and technical pull-backs as momentum capital braces for tightening liquidity conditions. Major market-makers and institutional players often proactively stall a rally—inducing intentional range-bound consolidation—specifically to avoid tripping the exchange’s mathematical formulas for warning re-classifications. Over the long term, this mandatory consolidation window will serve as a crucial test to verify whether the On-Device AI thematic narrative can be backed up by actual quarterly revenue and balance sheet expansion.

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

The undisputed monster of the On-Device AI rally, Jeju Semiconductor, has officially been slapped with a yellow card by the exchange! After executing a jaw-dropping 100% vertical rip in just 15 days—making even the hardened degens over on Reddit take notice—regulators are stepping in to pull the handbrake. With the ‘Attention’ tag active on the 23rd, we are going to see an epic tug-of-war between the unstoppable momentum chasers shouting “Full steam ahead through the sirens!” and the calculated swing traders aiming to cool down metrics. Watch closely to see if the market architects can pull off some masterclass tape-painting to keep the price floating just under the danger line. Welcome to the high-volatility arena!

📢 Disclaimer & Source Information Source: This content was structured and newly generated based on official data submitted to the Financial Supervisory Service electronic disclosure system (DART). Investment Risk Notice: This content is provided solely for informational and linguistic reference purposes. Under no circumstances does it constitute financial advice or a recommendation to buy or sell specific equities. All investment decisions and financial responsibilities rest entirely with the individual investor. Contact: For compliance inquiries or copyright requests, please contact ksb220805@gmail.com.

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