Explanation : Calculate the outflows and inflows on every significant date:Outflows: On January 1, 2011: 120 shares * $75 per share = $9000 Inflows: On January 1, 2012: Dividend on 120 shares: 120 * $5 per share=$600 Sale of 60 shares: 60 * $80 per share = $4800, Total = $5400 On January 1, 2013 Dividend on remaining 60 shares: 60 * $5 per share = $300 Sale of 60 shares: 60 * $82 per share = $4920 Total = $5220 IRR is the money weighted return which can be calculated using the cash flows: CF0 = -9000, CF1 = 5400, CF2 = 5220, CPT IRR = 11.85% The money weighted return is equal to 11.85%.