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

,” and a discussion on “Notable Accounting Tips for SMEs.” Over 130 SME operators and executives and employees of the Department of Industrial Promotion attended the event, held at SEC Office

has taken into account the public and stakeholders? comments and suggestions from the consultation on the governing principles conducted in last August. Notable changes were made to the level of ongoing

ไดรบัอนุญาต ตองจัดใหมีการเปดเผยขอมูลเพื่อเปรียบเทียบคาความผันผวนแฝง (implied volatility) กับคาความผันผวนในอดีต (historical volatility) บน website ของผูออก DW โดยเปนการเปดเผย อยางตอเนื่อง

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

benefit from structurally improving margins and capturing the volume opportunities. IVL has achieved notable progress on multiple strategic fronts and is increasingly well positioned to deliver sustainable

เพิ่มเติม เพื่อใหตลาดซื้อขาย DW มีประสิทธิภาพยิ่งขึ้น (market efficient) กลาวคือ จากการศึกษาขอมูลพบวา ในทางปฏิบัติที่ผานมา ผูออก DW บางราย มีการกําหนดราคา DW โดยคิดคา Implied Volatility2 ไวคอนข

representation, warranty or undertaking, express or implied, is made as to, and no reliance should be placed on, the fairness, accuracy, completeness or correctness of the information or the opinions contained

time since the inception in 2012. The recent findings in 2019 reflect notable effort by the supervisory agency for supervision of listed companies.The findings suggest that Thai listed companies still