BiOptic Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-01-20 | 42.600 | 42.650 | 42.600 | 42.650 | 42.008 | 2,128 |
| 2026-01-19 | 42.600 | 43.300 | 42.500 | 42.600 | 41.958 | 8,260 |
| 2026-01-16 | 43.300 | 43.300 | 43.300 | 43.300 | 42.648 | 0 |
| 2026-01-15 | 43.300 | 43.300 | 43.300 | 43.300 | 42.648 | 3,000 |
| 2026-01-14 | 42.550 | 43.500 | 42.000 | 42.900 | 42.254 | 93,158 |
| 2026-01-13 | 44.050 | 44.200 | 43.000 | 43.500 | 42.845 | 29,000 |
| 2026-01-12 | 44.500 | 45.200 | 44.500 | 45.000 | 44.322 | 6,000 |
| 2026-01-09 | 44.400 | 45.700 | 44.400 | 45.300 | 44.618 | 58,023 |
| 2026-01-08 | 42.700 | 44.000 | 42.700 | 43.800 | 43.140 | 146,223 |
| 2026-01-07 | 42.000 | 43.500 | 42.000 | 43.500 | 42.845 | 44,451 |
| 2026-01-06 | 41.650 | 43.500 | 41.650 | 43.500 | 42.845 | 32,234 |
| 2026-01-05 | 41.500 | 42.500 | 40.050 | 42.500 | 41.860 | 182,239 |
| 2026-01-02 | 40.250 | 41.000 | 39.900 | 40.300 | 39.693 | 40,350 |
| 2025-12-31 | 40.600 | 41.000 | 38.000 | 39.800 | 39.201 | 165,180 |
| 2025-12-30 | 41.100 | 42.200 | 41.000 | 41.400 | 40.777 | 40,900 |
| 2025-12-29 | 42.400 | 42.600 | 41.100 | 42.600 | 41.958 | 580 |
| 2025-12-26 | 42.450 | 42.450 | 41.450 | 42.400 | 41.761 | 3,200 |
| 2025-12-24 | 42.200 | 42.450 | 41.100 | 42.450 | 41.811 | 4,199 |
| 2025-12-23 | 41.400 | 41.450 | 41.050 | 41.100 | 40.481 | 11,450 |
| 2025-12-22 | 40.000 | 40.000 | 40.000 | 40.000 | 39.398 | 174 |
| 2025-12-19 | 41.400 | 41.400 | 40.000 | 41.400 | 40.777 | 12,500 |
| 2025-12-18 | 40.850 | 41.400 | 40.000 | 41.400 | 40.777 | 33,050 |
| 2025-12-17 | 42.000 | 42.000 | 42.000 | 42.000 | 41.368 | 37 |
| 2025-12-16 | 41.000 | 41.500 | 40.850 | 40.850 | 40.235 | 6,650 |
| 2025-12-15 | 42.500 | 42.500 | 42.500 | 42.500 | 41.860 | 20 |
| 2025-12-12 | 41.500 | 41.500 | 41.500 | 41.500 | 40.875 | 2,100 |
| 2025-12-11 | 41.250 | 41.500 | 40.550 | 41.500 | 40.875 | 8,400 |
| 2025-12-10 | 41.000 | 41.500 | 40.200 | 40.950 | 40.333 | 73,800 |
| 2025-12-09 | 41.000 | 41.500 | 41.000 | 41.200 | 40.580 | 25,471 |
| 2025-12-08 | 41.000 | 42.000 | 41.000 | 41.000 | 40.383 | 16,000 |
| 2025-12-05 | 41.000 | 41.250 | 41.000 | 41.250 | 40.629 | 12,000 |
| 2025-12-04 | 42.500 | 42.500 | 41.000 | 41.500 | 40.875 | 11,595 |
| 2025-12-03 | 42.450 | 42.450 | 41.000 | 42.450 | 41.811 | 2,110 |
| 2025-12-02 | 42.500 | 42.500 | 41.000 | 41.000 | 40.383 | 1,201 |
| 2025-12-01 | 41.200 | 42.650 | 41.000 | 42.500 | 41.860 | 4,724 |
| 2025-11-28 | 42.600 | 42.650 | 42.600 | 42.650 | 42.008 | 1,300 |
| 2025-11-27 | 42.700 | 42.700 | 42.600 | 42.600 | 41.958 | 2,168 |
| 2025-11-26 | 42.000 | 42.500 | 41.250 | 41.250 | 40.629 | 19,100 |
| 2025-11-25 | 42.750 | 42.750 | 42.750 | 42.750 | 42.106 | 20 |
| 2025-11-24 | 41.500 | 42.150 | 41.500 | 42.000 | 41.368 | 14,181 |
| 2025-11-21 | 42.000 | 42.000 | 41.500 | 41.500 | 40.875 | 5,000 |
| 2025-11-20 | 42.600 | 42.800 | 42.500 | 42.500 | 41.860 | 6,200 |
| 2025-11-19 | 43.850 | 43.850 | 43.200 | 43.600 | 42.943 | 5,800 |
| 2025-11-18 | 43.700 | 43.700 | 42.500 | 43.000 | 42.352 | 17,200 |
| 2025-11-17 | 42.500 | 43.300 | 42.500 | 43.100 | 42.451 | 12,243 |
| 2025-11-14 | 41.000 | 42.500 | 41.000 | 42.500 | 41.860 | 3,555 |
| 2025-11-13 | 41.400 | 42.450 | 41.000 | 41.000 | 40.383 | 2,250 |
| 2025-11-12 | 41.500 | 42.500 | 41.000 | 42.500 | 41.860 | 18,007 |
| 2025-11-11 | 43.000 | 43.000 | 40.000 | 43.000 | 42.352 | 44,348 |
| 2025-11-10 | 43.000 | 43.000 | 41.500 | 43.000 | 42.352 | 4,100 |
| 2025-11-07 | 41.500 | 43.000 | 41.500 | 43.000 | 42.352 | 800 |
| 2025-11-06 | 41.500 | 43.000 | 41.150 | 42.000 | 41.368 | 17,558 |
| 2025-11-05 | 42.000 | 42.750 | 41.500 | 41.500 | 40.875 | 11,300 |
| 2025-11-04 | 43.250 | 43.250 | 42.000 | 43.000 | 42.352 | 16,800 |
| 2025-11-03 | 44.000 | 44.000 | 42.100 | 43.000 | 42.352 | 51,281 |
| 2025-10-31 | 45.000 | 45.000 | 43.200 | 44.000 | 43.337 | 11,226 |
| 2025-10-30 | 43.500 | 45.000 | 43.500 | 45.000 | 44.322 | 11,096 |
| 2025-10-29 | 42.500 | 44.200 | 42.500 | 43.500 | 42.845 | 45,018 |
| 2025-10-28 | 47.500 | 47.500 | 41.000 | 43.000 | 42.352 | 244,851 |
| 2025-10-27 | 47.500 | 47.500 | 47.500 | 47.500 | 46.785 | 1,000 |
Stock splits
No stock splits on record.
Dividends
| Ex-date | Amount |
|---|---|
| 2026-08-25 | 0.5000 TWD |
| 2025-08-20 | 0.3300 TWD |
| 2024-08-21 | 0.2268 TWD |
| 2023-08-24 | 1.1000 TWD |
| 2022-08-25 | 0.5500 TWD |
Open, high, low and close are as traded (TWD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.