Diamond Biotechnology Co., Ltd historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-10-23 | 66.400 | 67.500 | 65.200 | 65.900 | 65.900 | 118,324 |
| 2025-10-22 | 67.000 | 68.300 | 66.300 | 66.500 | 66.500 | 98,605 |
| 2025-10-21 | 66.200 | 66.200 | 64.800 | 65.800 | 65.800 | 147,358 |
| 2025-10-20 | 67.800 | 69.000 | 65.100 | 65.300 | 65.300 | 625,418 |
| 2025-10-17 | 73.400 | 74.500 | 62.500 | 65.200 | 65.200 | 778,785 |
| 2025-10-16 | 72.300 | 75.300 | 71.800 | 74.500 | 74.500 | 458,445 |
| 2025-10-15 | 72.300 | 72.600 | 69.900 | 72.300 | 72.300 | 416,050 |
| 2025-10-14 | 73.400 | 77.300 | 70.700 | 71.200 | 71.200 | 993,515 |
| 2025-10-13 | 68.000 | 76.700 | 65.800 | 73.300 | 73.300 | 880,144 |
| 2025-10-09 | 62.300 | 70.300 | 62.300 | 70.200 | 70.200 | 905,564 |
| 2025-10-08 | 58.400 | 64.400 | 56.900 | 62.900 | 62.900 | 498,062 |
| 2025-10-07 | 54.600 | 57.400 | 54.400 | 57.100 | 57.100 | 385,923 |
| 2025-10-03 | 51.800 | 57.200 | 47.400 | 55.000 | 55.000 | 400,607 |
| 2025-10-02 | 60.000 | 60.600 | 52.300 | 54.400 | 54.400 | 413,730 |
| 2025-10-01 | 58.000 | 61.600 | 58.000 | 60.100 | 60.100 | 452,579 |
| 2025-09-30 | 58.000 | 59.000 | 56.200 | 58.200 | 58.200 | 510,297 |
| 2025-09-26 | 52.500 | 60.500 | 52.300 | 57.000 | 57.000 | 665,991 |
| 2025-09-25 | 51.000 | 52.700 | 50.600 | 51.700 | 51.700 | 260,823 |
| 2025-09-24 | 51.500 | 51.600 | 48.850 | 49.850 | 49.850 | 291,917 |
| 2025-09-23 | 46.000 | 51.800 | 43.950 | 51.800 | 51.800 | 146,658 |
| 2025-09-22 | 45.000 | 45.150 | 43.850 | 45.000 | 45.000 | 40,741 |
| 2025-09-19 | 44.450 | 45.950 | 43.750 | 45.900 | 45.900 | 79,710 |
| 2025-09-18 | 44.650 | 45.650 | 44.450 | 45.050 | 45.050 | 21,060 |
| 2025-09-17 | 45.100 | 45.950 | 44.550 | 45.650 | 45.650 | 12,892 |
| 2025-09-16 | 45.150 | 45.300 | 44.150 | 45.100 | 45.100 | 28,325 |
| 2025-09-15 | 46.400 | 46.400 | 44.500 | 45.150 | 45.150 | 20,796 |
| 2025-09-12 | 47.350 | 47.350 | 43.950 | 46.450 | 46.450 | 69,734 |
| 2025-09-11 | 47.000 | 47.950 | 45.150 | 47.350 | 47.350 | 65,245 |
| 2025-09-10 | 46.450 | 47.850 | 46.450 | 47.800 | 47.800 | 38,076 |
| 2025-09-09 | 47.650 | 47.800 | 46.350 | 47.800 | 47.800 | 11,053 |
| 2025-09-08 | 47.650 | 47.650 | 46.100 | 47.400 | 47.400 | 25,563 |
| 2025-09-05 | 46.650 | 48.000 | 46.650 | 47.700 | 47.700 | 1,493 |
| 2025-09-04 | 48.100 | 48.500 | 46.150 | 47.900 | 47.900 | 21,524 |
| 2025-09-03 | 48.400 | 48.500 | 46.200 | 48.500 | 48.500 | 11,400 |
| 2025-09-02 | 49.000 | 49.150 | 47.850 | 48.150 | 48.150 | 22,855 |
| 2025-09-01 | 49.150 | 49.150 | 47.900 | 49.000 | 49.000 | 20,578 |
| 2025-08-29 | 48.400 | 49.250 | 48.250 | 49.200 | 49.200 | 14,065 |
| 2025-08-28 | 48.400 | 49.900 | 46.000 | 49.050 | 49.050 | 115,044 |
| 2025-08-27 | 42.350 | 50.100 | 42.350 | 48.400 | 48.400 | 184,400 |
| 2025-08-26 | 49.000 | 51.700 | 49.000 | 50.100 | 42.406 | 75,763 |
| 2025-08-25 | 49.900 | 50.600 | 48.300 | 49.900 | 42.237 | 106,283 |
| 2025-08-22 | 51.000 | 51.000 | 51.000 | 51.000 | 43.168 | 0 |
| 2025-08-21 | 51.200 | 51.700 | 49.900 | 51.000 | 43.168 | 62,181 |
| 2025-08-20 | 49.050 | 49.700 | 48.350 | 49.500 | 41.898 | 74,540 |
| 2025-08-19 | 51.200 | 51.200 | 49.050 | 50.100 | 42.406 | 57,858 |
| 2025-08-18 | 49.500 | 51.900 | 48.950 | 51.500 | 43.591 | 264,019 |
| 2025-08-15 | 47.350 | 48.950 | 46.000 | 48.950 | 41.433 | 235,086 |
| 2025-08-14 | 44.550 | 49.450 | 42.900 | 47.950 | 40.586 | 287,612 |
| 2025-08-13 | 44.000 | 45.150 | 42.400 | 44.800 | 37.920 | 363,154 |
| 2025-08-12 | 49.700 | 50.600 | 43.300 | 43.650 | 36.946 | 604,807 |
| 2025-08-11 | 50.300 | 51.500 | 49.350 | 50.500 | 42.745 | 100,244 |
| 2025-08-08 | 52.000 | 52.000 | 50.000 | 51.000 | 43.168 | 19,055 |
| 2025-08-07 | 53.000 | 53.000 | 50.200 | 51.700 | 43.760 | 32,259 |
| 2025-08-06 | 51.200 | 53.600 | 51.200 | 52.900 | 44.776 | 88,541 |
| 2025-08-05 | 50.200 | 51.800 | 50.200 | 51.300 | 43.422 | 51,825 |
| 2025-08-04 | 51.700 | 51.700 | 49.850 | 50.400 | 42.660 | 26,017 |
| 2025-08-01 | 52.000 | 52.000 | 52.000 | 52.000 | 44.014 | 0 |
| 2025-07-31 | 51.500 | 52.700 | 51.100 | 52.000 | 44.014 | 66,678 |
| 2025-07-30 | 53.000 | 53.100 | 51.300 | 52.000 | 44.014 | 19,204 |
| 2025-07-29 | 53.200 | 53.400 | 50.700 | 52.700 | 44.607 | 119,916 |
Stock splits
No stock splits on record.
Dividends
| Ex-date | Amount |
|---|---|
| 2025-08-27 | 0.2300 TWD |
| 2024-08-05 | 0.1848 TWD |
| 2023-08-23 | 0.1337 TWD |
| 2022-08-24 | 0.2040 TWD |
| 2021-08-27 | 0.0500 TWD |
Open, high, low and close are as traded (TWD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.