Calculate the return on the LVMH share and on the French index over 12 months until March 2019. To help you, you have a record of the share price and of the general index (CAC40). What is the total risk of the LVMH share? What is the β coefficient of LVMH? What portion of the total risk of the LVMH share is explained by market risk?

Period Mar 18 Apr 18 May 18 Jun 18 Jul 18 Aug 18 Sep 18 Oct 18 Nov 18 Dec 18 Jan 18 Feb 19 Mar 19 LVMH 244.9 281.5 293.5 304.1 296.4 300.3 292.5 262.9 270.6 250 253.9 289.6 302 CAC40 5,252 5,322 5,529 5,543 5,429 5,415 5,345 5,095 5,097 4,840 4,800 5,062 5,234 AppendixLO1