Key data per share

  2011
2012*** 2013 2014 2015
Number of shares on 31 Dec 15'676'549 15'676'549 15'676'549 15'676'549 15'676'549
Share price on 31 Dec 162.10
112.0 166.80 250.75 305.0
Market capitalization 31 Dec (in CHF m) 2'541
1756 2615 3915 4778
Earnings per share (in CHF) 4.54
2.43 6.55 10.15 9.19*
Price/earnings ratio 26
23 25 25 33
Dividend per share (in CHF)**** 3.75
3.75 3.75 3.75 4.00
Payout ratio (% of EPS)* 59%
77% 53% 45% 44%
Dividend yield** 2.3%
3.4% 2.3% 1.5% 1.2%

* Excl. exceptionals
** Calculated by applying year-end closing price
*** IAS 19 restated
**** Payable in the following year