Balance sheet
| 
 | 
 | 31.12.2019 | 31.12.2018 | 
| CHF thousand | 
 | 
 | 
 | 
| 
 | Note | 
 | 
 | 
| Assets | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
| Cash and cash equivalents and current assets listed at the stock exchange | 6 | 368,861 | 381,312 | 
| Current securities and other financial instruments not listed at the stock exchange | 7 | 102,562 | 61,269 | 
| Trade accounts receivable | 8 | 53,993 | 322,063 | 
| Other receivables | 9 | 30,960 | 8,246 | 
| Inventories and non-invoiced services | 10 | 6,862 | 10,725 | 
| Prepaid expenses and accrued income | 11 | 350,893 | 2,791 | 
| Current assets | 
 | 914,131 | 786,406 | 
| 
 | 
 | 
 | 
 | 
| Financial assets | 12 | 132,867 | 233,687 | 
| Shareholdings | 
 | 220,250 | 233,422 | 
| Tangible assets | 
 | 371,574 | 366,444 | 
| Intangible assets | 13 | 10,799 | 16,507 | 
| Non-current assets | 
 | 735,490 | 850,060 | 
| 
 | 
 | 
 | 
 | 
| Total assets | 
 | 1,649,621 | 1,636,466 | 
| 
 | 
 | 31.12.2019 | 31.12.2018 | 
| CHF thousand | 
 | 
 | 
 | 
| 
 | Note | 
 | 
 | 
| Liabilities and shareholders’ equity | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
| Trade accounts payable | 14 | 18,683 | 298,140 | 
| Current interest-bearing liabilities | 15 | - | 2,029 | 
| Other current liabilities | 16 | 73,231 | 136,571 | 
| Deferred income and accrued expenses | 17 | 372,281 | 20,507 | 
| Current liabilities | 
 | 464,195 | 457,247 | 
| 
 | 
 | 
 | 
 | 
| Non-current interest-bearing liabilities | 18 | 367,342 | 369,520 | 
| Other non-current liabilities | 19 | 49,657 | 49,104 | 
| Non-current provisions | 20 | 16,071 | 19,511 | 
| Non-current liabilities | 
 | 433,070 | 438,135 | 
| 
 | 
 | 
 | 
 | 
| Liabilities | 
 | 897,265 | 895,382 | 
| 
 | 
 | 
 | 
 | 
| Share capital | 
 | 7,391 | 7,391 | 
| Legal reserve from capital | 
 | 180,640 | 184,335 | 
| Legal reserve from retained earnings | 
 | 17,123 | 17,123 | 
| Free reserves from earnings | 
 | 
 | 
 | 
| Other reserves | 
 | 511,985 | 491,979 | 
| Retained earnings | 
 | 35,233 | 40,278 | 
| Treasury shares | 
 | –16 | –22 | 
| Shareholders' equity | 21 | 752,356 | 741,084 | 
| 
 | 
 | 
 | 
 | 
| Total liabilities and shareholder’s equity | 
 | 1,649,621 | 1,636,466 |