SEHK News ． 2026-06-03 17:03 OPTN NEWS - NEW STOCK OPTIONS CONTRACTS  2026-06-03 08:48 The Exchange News  2026-06-02 08:47 The Exchange News  2026-06-01 08:50 The Exchange News  2026-05-29 08:40 The Exchange News  2026-05-28 08:44 The Exchange News  2026-05-27 12:38 OPTN NEWS - Invalid Block Trade  2026-05-27 08:46 The Exchange News  2026-05-26 08:42 The Exchange News  2026-05-22 08:44 The Exchange News 
Chart
Price
CTKNATL@EC2610A (28453) -- Quote is delayed for at least 15 mins2026-06-03 16:08:50
Last Price
0.395
Price Change
0.050
Bid
0.390
Day High
0.455
Open
0.390
PCT Change
14.493%
Ask
0.440
Day Low
0.380
Prev.Close
0.345
Volume7.47MTurnover3.05M
Premium174.45%Lot Size5000
Gearing(X)7.40Strike3815.000
Converting Ratio0.002000Implied Volatility167.16%
Expiry Date2026-10-12CurrencyHKD
Linked Stock: 2513
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