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
]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
(1) the changing IT usage in business practices, (2) the increasingly sophisticated technical approaches and mechanisms of cyber threats, (3) the revisions to preventive measures for addressing
on their behalf by those agents. As sophisticated investors with influence, often including voting rights, institutional https://www.sec.or.th/cgthailand/TH/Documents/Assessment/ICGN%20Institutional
ไดรบัอนุญาต ตองจัดใหมีการเปดเผยขอมูลเพื่อเปรียบเทียบคาความผันผวนแฝง (implied volatility) กับคาความผันผวนในอดีต (historical volatility) บน website ของผูออก DW โดยเปนการเปดเผย อยางตอเนื่อง
prospectus; - continuing disclosure of the implied volatility in comparison to the historical volatility on the website of the DW issuer; - disclosure of a warning statement regarding the gearing ratio, a
their interests and on their behalf by those agents. As sophisticated investors with influence, often including voting rights, institutional https://www.sec.or.th/cgthailand/TH/Documents/Assessment/ICGN
be the only market maker in such investments. Past performance should not be taken as an indication or guarantee of future performance, and no representation or warranty, express or implied, is made
เพิ่มเติม เพื่อใหตลาดซื้อขาย DW มีประสิทธิภาพยิ่งขึ้น (market efficient) กลาวคือ จากการศึกษาขอมูลพบวา ในทางปฏิบัติที่ผานมา ผูออก DW บางราย มีการกําหนดราคา DW โดยคิดคา Implied Volatility2 ไวคอนข
exemption or light-touch track for offers made to sophisticated investors or private placements. However, the SEC proposes that ICO for “investment participation” be initially allowed for institutional