OK Biotech Co., Ltd. (4155.TW) TAI

Currency In TWD

4155.TW Historical Return

If you invested 1000 NT$ in OK Biotech Co., Ltd. (4155.TW) 10 years ago, it would be worth 842.93 NT$ as of October 22, 2026, based on a reinvested dividends scenario. Over the same period, a 1000 NT$ investment made 5 years ago would be worth 851.4 NT$, while 1000 NT$ invested 1 year ago would be worth 1,064.81 NT$. This corresponds to total returns of -15.71%, -14.86%, 6.48%, respectively, with annualized returns of -1.69%, -3.16%, 6.48%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

4155.TW Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 21, 2026	16	17.2	17.2	17.75	15.45	3.48M
October 20, 2026	16.6	16.15	16.15	17.35	16.1	3.78M
October 19, 2026	15.15	16.1	16.1	16.1	15.15	1.41M
October 16, 2026	15.84	15.84	15.84	15.84	15.84	0
October 15, 2026	15.84	15.84	15.84	15.84	15.84	0
October 14, 2026	15.84	15.84	15.84	15.84	15.84	0
October 13, 2026	15.84	15.84	15.84	15.84	15.84	0
October 12, 2026	15.84	15.84	15.84	15.84	15.84	0
October 08, 2026	15.84	15.84	15.84	15.84	15.84	0
October 07, 2026	15.84	15.84	15.84	15.84	15.84	0
October 06, 2026	16.46	15.84	14.81	16.57	15.84	459,559
October 05, 2026	16.57	16.46	15.38	16.68	16.4	173,045
October 02, 2026	16.4	16.57	15.48	16.68	16.4	96,013
October 01, 2026	16.46	16.57	15.48	16.57	16.29	243,364
September 30, 2026	16.29	16.34	15.27	16.4	16.23	144,625
September 29, 2026	16.57	16.29	15.22	16.57	16.29	132,816
September 24, 2026	16.4	16.57	15.48	16.85	16.4	160,444
September 23, 2026	16.57	16.4	15.33	16.74	16.29	273,655
September 22, 2026	16.74	16.57	15.48	16.74	16.46	160,711
September 21, 2026	16.9	16.62	15.54	16.96	16.62	131,911
September 20, 2026	14.85	15.15	15.15	15.15	14.85	45,705
September 18, 2026	16.57	16.9	15.8	16.9	16.57	312,198
September 17, 2026	16.51	16.57	15.48	16.62	16.4	98,802
September 16, 2026	16.46	16.57	15.48	16.68	16.29	120,315
September 15, 2026	16.34	16.4	15.33	16.46	16.29	63,668
September 14, 2026	16.85	16.4	15.33	16.85	16.18	338,474
September 11, 2026	16.46	16.9	15.8	16.9	16.34	312,909
September 10, 2026	16.18	16.51	15.43	17.18	16.18	983,274
September 09, 2026	15.84	15.73	14.7	15.84	15.62	184,650
September 08, 2026	15.95	15.79	14.75	15.95	15.79	69,938
September 07, 2026	16.01	15.95	14.91	16.23	15.84	202,709
September 04, 2026	15.95	16.12	15.07	16.12	15.84	204,381
September 03, 2026	16.12	15.95	14.91	16.12	15.9	123,441
September 02, 2026	16.18	16.07	15.01	16.18	15.79	247,389
September 01, 2026	16.23	16.18	15.12	16.34	16.12	101,283
August 31, 2026	16.07	16.23	15.17	16.29	16.07	105,765
August 28, 2026	16.18	16.12	15.07	16.23	16.07	82,550
August 27, 2026	16.18	16.18	15.12	16.23	16.01	149,684
August 26, 2026	16.18	16.23	15.17	16.29	16.07	112,489
August 25, 2026	16.12	16.18	15.12	16.18	16.01	69,105
August 24, 2026	16.51	16.12	15.07	16.51	16.07	243,819
August 21, 2026	16.46	16.46	15.38	16.51	16.34	143,519
August 20, 2026	16.29	16.57	15.48	16.57	16.29	119,568
August 19, 2026	16.4	16.34	15.27	16.51	16.34	139,825
August 18, 2026	16.51	16.4	15.33	16.51	16.23	145,294
August 17, 2026	16.51	16.51	15.43	16.57	16.4	175,100
August 14, 2026	16.85	16.51	15.43	16.85	16.34	550,379
August 13, 2026	16.62	16.85	15.74	17.07	16.62	399,815
August 12, 2026	16.34	16.51	15.43	16.79	16.29	475,563
August 11, 2026	15.95	16.34	15.27	16.34	15.84	293,258
August 10, 2026	16.34	16.34	15.27	16.62	16.23	244,698
August 07, 2026	16.07	16.18	15.12	16.4	15.95	213,323
August 06, 2026	16.07	16.07	15.01	16.07	15.84	125,493
August 05, 2026	16.12	16.07	15.01	16.29	16.07	127,276
August 04, 2026	16.01	15.95	14.91	16.01	15.9	118,405
August 03, 2026	16.01	16.07	15.01	16.12	15.79	73,497
July 31, 2026	16.46	16.07	15.01	16.46	16.07	138,099
July 30, 2026	16.12	16.07	15.01	16.29	15.95	118,313
July 29, 2026	16.62	16.29	15.22	16.85	16.18	230,432
July 28, 2026	17.13	16.68	15.59	17.13	16.68	199,878