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v3.19.3

Fair value measurement (Details 3) - CNY (¥) ¥ in Thousands |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 21, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2017 | Dec. 31, 2018
Investment securities |  |  |  |  |
Cost Basis |  | ¥ 16,560,645 |  |  | ¥ 16,071,098
Gross Unrealized Gains |  | 2,056,040 |  |  | 3,952,704
Gross Unrealized Losses |  | (2,909,051) |  |  | (4,122,229)
Fair Value |  | 15,707,634 |  |  | 15,901,573
Others, net |  |  |  |  |
Investment securities |  |  |  |  |
Impairment of investments |  | 631,871 | ¥ 399,027 |  |
Significant Other Observable Inputs (Level 2) |  |  |  |  |
Investment securities |  |  |  |  |
Unsecured senior notes |  | 7,230,696 |  |  | 6,382,604
Significant Unobservable Inputs (Level 3) | Nonrecurring basis | Others, net |  |  |  |  |
Investment securities |  |  |  |  |
Impairment of investments |  | 631,871 | ¥ 399,027 |  |
Time deposits | Significant Other Observable Inputs (Level 2) |  |  |  |  |
Investment securities |  |  |  |  |
Cash equivalents |  | 7,072,900 |  |  | 12,050,507
China Unicom |  |  |  |  |
Investment securities |  |  |  |  |
Gross Unrealized Losses |  | (600,293) |  |  | (1,215,227)
Percentage of outstanding ordinary shares subscribed or held |  |  |  | 2.40% |
Total consideration for the investment |  |  |  | ¥ 5,000,000 |
Vipshop |  |  |  |  |
Investment securities |  |  |  |  |
Gross Unrealized Losses |  | (729,198) |  |  | (2,004,447)
Percentage of outstanding ordinary shares subscribed or held |  |  |  | 5.50% |
Total consideration for the investment |  | 1,121,792 |  | ¥ 2,794,547 |
Farfetch |  |  |  |  |
Investment securities |  |  |  |  |
Gross Unrealized Gains |  |  |  |  | ¥ 2,250,113
Gross Unrealized Losses |  | ¥ (310,419) |  |  |
Total consideration for the investment | ¥ 186,155 |  |  | ¥ 2,713,285 |

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