Question 10 (13 marks)

Refer to the below limit order book for the stock QQL.

		100	6.40	6.80	300
Time	Trader	Size	Price	Price	Size	Trader	Time
09:55	HSU	100	6.40	6.80	300	CTI	09:15
10:11	HKB	300	6.20	6.95	1000	WHB	09:30
09:45	BEA	550	6.00	7.05	100	CCB	10:00

The following scenarios are independent of each other.

a. (2 marks) If you execute a market buy order of 500 shares of QQL, how much money would you receive?

b. (2 marks) If a limit order to sell 700 shares at $6.40 arrives, what would be the new market best bid and ask?

c. (3 marks) Suppose at 10:15, one of your clients requests to buy 300 shares of QQL by the end of the trading day. There are two possible strategies you may take to handle this order. Explain the pros and cons of ONE of the strategies.

Can anyone help me to solve the a-c?