ABC Co is an all equity firm. Its current stock price is $5 and it has 2 million shares outstanding. On 1 November, ABC announces that it will buyback $0.5 million worth of shares. 2.1 If the market is perfect, how will ABC's stock price move after the announcement? Explain why. [2 marks] 2.2 How many shares can ABC buy back? [2 marks] 2.5 If there is information asymmetry, how will ABC's stock price move after the announcement? Explain why. [2 marks]