Key data per share

  2012*** 2013 2014 2015 2016 2017
Number of outstanding shares on 31 Dec 15'441'259 15'533'158 15'613'849 15'676'549 15'326'815 15'715'403
Share price on 31 Dec 112.0 166.80 250.75 305.0 397.5 688.50
Market capitalization 31 Dec (in CHF m) 1'756 2'615 3'915 4'778 6'092 10'887
Earnings per share / EPS (in CHF)* 2.43 6.55 10.15 9.19* 11.94 15.13
Price/earnings ratio 23 25 25 33 33 46
Dividend per share (in CHF)**** 3.75 3.75 3.75 4.00 4.25 4.75
Payout ratio (% of EPS)* 77% 53% 45% 44% 36% 31%
Dividend yield** 3.4% 2.3% 1.5% 1.2% 1.1% 0.7%

* Excl. exceptionals and one-time effects
** Calculated by applying year-end closing price
*** IAS 19 restated
**** Dividend for the current fiscal year payable in April of the following year