relationship, The opportunity of risk-free arbitrage will be found. • Put call Parity was introduced by Stoll ( 1969) Literature review •Found opportunity to arbitrage SET50 index under Put Call Parity

into a few well-resourced media operators. Competition has intensified, but so too has opportunity with widening audience reach. The demand of outdoor media has also grown with the implementation of the

was in accordance with company’s continually expanding strategy and well management in sales and marketing function. The company; therefore, can gain more market share. 2. Selling and Administrative

and depreciation from the expanding capacity of subsidiaries. 3. Selling and administrative expenses increased by Baht 21.38 million or 30.76% the main reasons are the expenses incurred from the

still expanding and has a bright future as well as continue to seek stability, safety and consider to all interested persons. Please be informed accordingly. Sincerely Yours, Mr.Thakoon Boonparn Managing

. Cost of hospital operations & Administrative expenses increased by Baht 49.04 million or 9.45 % due to the Medical personal expenses increased because of the expanding capacity of subsidiaries. 3

the expanding capacity of subsidiaries. 3. Selling and administrative expensed decreased by Baht 5.21 million or 5.73 % the main reasons are the expenses incurred from the decreasing of personal

. Cost of hospital operations & Administrative expenses increased by Baht 29.44 million or 10.92 % due to the Medical personal expenses also increased because of the expanding capacity of subsidiaries. 3

whether organize seminar, event and more. The company will continue to develop in order to sustain its future growth as well as adhering the security, job expanding and consideration of all stakeholders

increased. 2. Cost of hospital operations & Administrative expenses increased by Baht 199.42 million or 9.04 % due to the increasing of medical personal expenses and the depreciation because of the expanding