Optotech Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-07-28 | 20.600 | 20.650 | 20.100 | 20.450 | 20.450 | 811,933 |
| 2025-07-25 | 21.050 | 21.050 | 20.500 | 20.500 | 20.500 | 1,340,963 |
| 2025-07-24 | 20.550 | 21.150 | 20.250 | 20.950 | 20.950 | 1,748,473 |
| 2025-07-23 | 20.250 | 20.600 | 20.100 | 20.450 | 20.450 | 1,344,563 |
| 2025-07-22 | 21.300 | 21.300 | 19.950 | 20.000 | 20.000 | 2,899,655 |
| 2025-07-21 | 21.600 | 21.750 | 21.150 | 21.150 | 21.150 | 1,691,412 |
| 2025-07-18 | 22.400 | 22.900 | 21.450 | 21.850 | 21.850 | 9,409,683 |
| 2025-07-17 | 20.200 | 22.100 | 20.200 | 22.100 | 22.100 | 4,515,957 |
| 2025-07-16 | 20.250 | 20.400 | 19.850 | 20.100 | 20.100 | 1,679,632 |
| 2025-07-15 | 19.700 | 20.250 | 19.650 | 20.100 | 20.100 | 1,237,014 |
| 2025-07-14 | 20.000 | 20.000 | 19.600 | 19.650 | 19.650 | 697,999 |
| 2025-07-11 | 19.700 | 20.000 | 19.600 | 19.850 | 19.850 | 895,082 |
| 2025-07-10 | 19.800 | 19.950 | 19.500 | 19.500 | 19.500 | 837,110 |
| 2025-07-09 | 19.750 | 20.000 | 19.500 | 19.750 | 19.750 | 803,140 |
| 2025-07-08 | 20.250 | 20.250 | 19.550 | 19.750 | 19.750 | 1,300,813 |
| 2025-07-07 | 20.600 | 20.600 | 19.750 | 20.200 | 20.200 | 871,224 |
| 2025-07-04 | 21.800 | 21.800 | 20.450 | 20.500 | 20.500 | 2,604,640 |
| 2025-07-03 | 20.750 | 22.000 | 20.600 | 21.650 | 21.650 | 3,331,421 |
| 2025-07-02 | 20.750 | 20.900 | 20.350 | 20.400 | 20.400 | 1,304,213 |
| 2025-07-01 | 21.550 | 21.700 | 20.650 | 20.650 | 20.650 | 2,094,923 |
| 2025-06-30 | 22.100 | 22.100 | 20.650 | 21.100 | 21.100 | 3,501,378 |
| 2025-06-27 | 21.100 | 23.000 | 21.050 | 21.900 | 21.900 | 7,327,124 |
| 2025-06-26 | 20.150 | 21.500 | 20.150 | 21.000 | 21.000 | 4,769,700 |
| 2025-06-25 | 20.500 | 21.900 | 20.100 | 20.150 | 20.150 | 5,779,433 |
| 2025-06-24 | 19.100 | 20.500 | 18.950 | 20.500 | 20.500 | 4,461,761 |
| 2025-06-23 | 18.750 | 18.900 | 18.200 | 18.650 | 18.650 | 905,733 |
| 2025-06-20 | 19.400 | 19.500 | 18.750 | 19.100 | 19.100 | 2,323,866 |
| 2025-06-19 | 20.100 | 20.100 | 19.300 | 19.300 | 19.300 | 1,217,050 |
| 2025-06-18 | 20.050 | 20.350 | 19.950 | 20.250 | 20.250 | 829,807 |
| 2025-06-17 | 20.000 | 20.250 | 19.800 | 20.050 | 20.050 | 634,280 |
| 2025-06-16 | 19.600 | 19.950 | 19.400 | 19.900 | 19.900 | 681,357 |
| 2025-06-13 | 20.200 | 20.250 | 19.750 | 19.750 | 19.750 | 1,172,240 |
| 2025-06-12 | 20.600 | 20.650 | 20.350 | 20.500 | 20.500 | 527,868 |
| 2025-06-11 | 20.600 | 20.750 | 20.200 | 20.700 | 20.700 | 720,312 |
| 2025-06-10 | 20.400 | 20.750 | 20.400 | 20.400 | 20.400 | 748,577 |
| 2025-06-09 | 20.350 | 21.050 | 20.050 | 20.100 | 20.100 | 1,067,040 |
| 2025-06-06 | 20.600 | 20.600 | 20.100 | 20.100 | 20.100 | 639,210 |
| 2025-06-05 | 19.900 | 20.500 | 19.600 | 20.450 | 20.450 | 1,290,797 |
| 2025-06-04 | 19.450 | 20.100 | 19.400 | 19.750 | 19.750 | 998,626 |
| 2025-06-03 | 19.650 | 19.750 | 19.200 | 19.200 | 19.200 | 727,678 |
| 2025-06-02 | 19.900 | 20.000 | 19.250 | 19.450 | 19.450 | 1,319,002 |
| 2025-05-29 | 20.600 | 20.650 | 20.150 | 20.150 | 20.150 | 518,320 |
| 2025-05-28 | 20.650 | 20.750 | 20.200 | 20.300 | 20.300 | 641,207 |
| 2025-05-27 | 20.800 | 20.850 | 20.350 | 20.400 | 20.400 | 614,553 |
| 2025-05-26 | 21.100 | 21.100 | 20.650 | 20.700 | 20.700 | 744,445 |
| 2025-05-23 | 21.300 | 21.650 | 21.100 | 21.100 | 21.100 | 613,101 |
| 2025-05-22 | 21.950 | 22.100 | 21.400 | 21.450 | 21.450 | 909,899 |
| 2025-05-21 | 21.300 | 23.150 | 21.300 | 22.000 | 22.000 | 2,871,530 |
| 2025-05-20 | 21.850 | 21.950 | 21.300 | 21.300 | 21.300 | 565,411 |
| 2025-05-19 | 22.050 | 22.150 | 21.700 | 21.700 | 21.700 | 477,980 |
| 2025-05-16 | 22.300 | 22.500 | 22.050 | 22.150 | 22.150 | 625,726 |
| 2025-05-15 | 22.450 | 22.550 | 22.200 | 22.200 | 22.200 | 584,454 |
| 2025-05-14 | 22.400 | 22.550 | 22.000 | 22.450 | 22.450 | 643,699 |
| 2025-05-13 | 22.600 | 22.800 | 22.250 | 22.250 | 22.250 | 1,208,497 |
| 2025-05-12 | 21.700 | 22.150 | 21.600 | 22.000 | 22.000 | 749,501 |
| 2025-05-09 | 21.500 | 21.750 | 21.200 | 21.500 | 21.500 | 436,154 |
| 2025-05-08 | 21.000 | 21.650 | 21.000 | 21.500 | 21.500 | 757,660 |
| 2025-05-07 | 20.900 | 21.100 | 20.750 | 20.800 | 20.800 | 642,005 |
| 2025-05-06 | 20.700 | 21.250 | 20.500 | 20.950 | 20.950 | 612,843 |
| 2025-05-05 | 21.900 | 22.100 | 20.700 | 21.000 | 21.000 | 751,157 |
Stock splits
No stock splits on record.
Dividends
| Ex-date | Amount |
|---|---|
| 2024-07-11 | 0.5000 TWD |
| 2023-07-18 | 1.0000 TWD |
| 2022-07-21 | 3.0003 TWD |
| 2021-06-24 | 1.3927 TWD |
| 2019-09-11 | 1.2750 TWD |
| 2019-07-01 | 0.5000 TWD |
Open, high, low and close are as traded (TWD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.