Single Stock Options
Single Stock Option
Underlying Asset1) Underlying Asset List(SSO) (Click)
Contract Size 10 shares
Month of settlement Two non-quarterly months and four quarterly months.
Trading Hours 09:00 ~ 15:45 (09:00 ~ 15:20 on the last trading day)
Tick Size
Tick Size
Premium Tick Size
1) less than KRW 1,000 KRW 10
2) KRW 1,000 ~ less than KRW 2,000 KRW 20
3) KRW 2,000 ~ less than KRW 5,000 KRW 50
4) KRW 5,000 ~ less than KRW 10,000 KRW 100
5) KRW 10,000 or more than KRW 10,000 KRW 200
Price indication Premium (KRW)
Exercise Price Interval
  • Exercise price determination method : Setting exercise prices daily based on the ATM within the member margin rate range, aligning with the exercise price units, and setting a minimum number of exercise prices both above and below the ATM (At-The-Money)
  • Minimum number of exercise prices
    - 1st to 3rd expiration month : at least 9
    - 4th to 6th expiration month : at least 3
  • Exercise Price Interval
Exercise Price Interval
Stock Price 3 nearest consecutive month Other contract months Interval
1) equal to or less than KRW 5,000 KRW 100 KRW 400 KRW 100
2) more than KRW 5,000 and equal to or less than KRW 10,000 KRW 200 KRW 800 KRW 200
3) more than KRW 10,000 and equal to or less than KRW 20,000 KRW 500 KRW 2,000 KRW 500
4) more than KRW 20,000 and equal to or less than KRW 50,000 KRW 1,000 KRW 4,000 KRW 1,000
5) more than KRW 50,000 and equal to or less than KRW 100,000 KRW 2,000 KRW 8,000 KRW 2,000
6) more than KRW 100,000 and equal to or less than KRW 200,000 KRW 5,000 KRW 20,000 KRW 5,000
7) more than KRW 200,000 and equal to or less than KRW 500,000 KRW 10,000 KRW 40,000 KRW 10,000
8) more than KRW 500,000 and equal to or less than KRW 1,000,000 KRW 20,000 KRW 80,000 KRW 20,000
9) more than KRW 1,000,000 KRW 50,000 KRW 200,000 KRW 50,000
Last Trading Day Second Thursday of the contract month
Final Settlement Day The following day of the last trading day
Final Settlement Cash
Exercise Style European(exercisable only at expiration)
Price limit Extending to the theoretical price of the opition corresponding to each stage compared to the base price of underlying asset
① ±10%, ② ±20% ③ ±30%
Periodic call auction When the market opens (08:30 - 09:00) and trading ends except the final trading day (15:35 - 15:45)
Trading suspension if necessary
(Circuit Breakers)
Trading of equity options is suspended temporarily when the stock price changes dramatically.
1)
Underlying Stocks
Position Limit Rate Change History
Position Limit Rate Change History
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Quotation quantity Limits/Real-time Price Banding Change History
Quotation quantity Limits/Real-time Price Banding Change History
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