Fact Source: Financial Supervisory Service DART
💡 3-Second Summary
Following Celltrion’s bonus issue decision, the Korea Exchange (KRX) plans to adjust the base prices, contract multipliers, and strike prices for Celltrion stock futures and options starting June 4, 2026, the ex-rights date.
📊 [Key Disclosure Details & Financial Summary]
- Disclosure Title: Notice of Planned Market Measures for Stock Futures and Options Following Celltrion Co., Ltd.’s Bonus Issue
- Underlying Asset: Celltrion
- Reason & Regulatory Basis: Bonus issue decision by Celltrion Co., Ltd. (2026.05.21) / Article 25 of the Derivatives Market Business Regulations, etc.
- Effective Date: June 4, 2026 (Thursday, Ex-Rights Date)
- Planned Key Market Measures:
- Base Price Adjustments: Futures and options across all settlement months will be adjusted based on the ratio of the adjusted underlying share price to the closing price on the day prior to the ex-rights date.
- Contract Multiplier Adjustments: Adjusted for futures (contracts with open interest after market close on June 2, 2026) and options (all settlement months) using the inverse price adjustment ratio.
- Delisting of Futures Spreads: Spread contracts pairing months with mismatched contract multipliers will be delisted.
- Option Strike Price Adjustments & Special Listing: Adjustment of existing strike prices and introduction of new standard multiplier (10) strike prices.
- Other Items: Specific adjusted values to be announced on the trading day prior to the ex-rights date (June 2, 2026); details subject to change based on corporate actions.
📝 Editor’s Comment (Key Follow-up Checkpoint)
📌 Verification of Final Measures Disclosure and Derivatives Account Margin Adjustments
This disclosure serves as a preliminary notice detailing the adjustment formulas and timeline for the derivatives market following Celltrion’s bonus issue, making it essential to review the final implementation notice on June 2, 2026. Checking the confirmed contract multipliers and base prices is critical for managing account margin requirements and understanding position valuation after the ex-rights date. Final exact figures can be verified through subsequent KRX market notices or individual brokerage account statements.
📢 Disclaimer & Source Information
Source: This content was newly generated and structured based on official data submitted to the Data Analysis, Retrieval and Transfer System (DART) of the Financial Supervisory Service.
Investment Risk Notice: This information is provided for informational and linguistic reference purposes only. Under no circumstances does it constitute financial advice or a recommendation to buy or sell any specific stock. All investment decisions and financial responsibilities rest solely with the investor.
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