firms Unlike the other Greeks, implied volatility was unknown. 6 t Implied volatility Realized volatility t + 1 • It was calculated by reverse engineer process from the option price at time t. • Implied
& Verify(A) SignFile & Verify(B) Authorization details (EF-3) : companyName systemName reportName effectiveDate
manager that she had obtained such authorization and decided to trade by the instruction of clients? appointee or by her own deliberation. For a long period of time, she continually made trading decisions
Company Registration Number Officer Name Officer Email Current Datetime Client Datetime SecSign File Version SignMessage & Verify SignFile & Verify(A) SignFile & Verify(B) Authorization details (EF-3
]St0 HC = Ct1−[Delta]St1 DeltaBS = f ( St0, K, T, r, σ ) Historical statistic : Standard deviation Implied statistic : Min ∑ (Cmarket – C theoretical) 2 DeltaWM = f ( St0, K, T, r, μ, σ* ) σ* = f (r, μ
securities trading account without any written authorization from the account owner. He admitted that both clients were siblings and the account owner asked her brother to submit trading orders without prior
consultants were more knowledgeable or had better information than them. A number of clients were affected from trading and suffered losses. In many cases, the authorization led to trading more than the clients
Bangkok, February 25, 2015 ? The SEC suspended {A}, a capital market investment consultant of Kasikorn Securities Plc. for obtaining authorization to make derivatives and securities trading decisions
? behalf. With the said authorization, he traded with high trading volume for a period of time. {A} admitted to Maybank Kim Eng Securities that he used clients' User IDs and passwords to send trading orders
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