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

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

]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

strong network quality. The full-year guidance and outlook for 2018 was maintained as presented on page 6. Significant Events 1. AIS, via AWN, currently holds 81.47% of total CSL’s outstanding share and is

of tender offer of CSL on 23 January 2018. In summary, there were 476,196,534 tendered shares of CSL or 80.10% of total CSL outstanding shares, all of which AWN acquired. Detail of the release can be

CSL outstanding shares. Following the acquisition, AIS will have greater capability to serve increasing business demand for digital solutions e.g. Cloud, business solutions, and managed services in the

the purchaser for the outstanding amount. A part of the proceeds from the disposal of assets were used to pay down on the bank overdrafts and short- term loan outstanding in March 2017. The Company

standards. This confirms our commitment to be a world-class energy company with outstanding performance on environment, social and governance (ESG) aspects. In July 2020, BGRIM got 3 awards from

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

outstanding of US dollar debts and payable while THB and VND depreciation against US dollar during this period; note that this is non-cash item and the US dollar debts were arranged for natural hedge with our