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 929.43 NT$ as of August 22, 2026, based on a reinvested dividends scenario. Over the same period, a 1000 NT$ investment made 5 years ago would be worth 926.51 NT$, while 1000 NT$ invested 1 year ago would be worth 907.69 NT$. This corresponds to total returns of -7.06%, -7.35%, -9.23%, respectively, with annualized returns of -0.73%, -1.52%, -9.23%.

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
August 21, 2026	14.75	14.75	14.75	14.8	14.65	163,156
August 20, 2026	14.6	14.85	14.85	14.85	14.6	133,637
August 19, 2026	14.7	14.65	14.65	14.8	14.65	157,569
August 18, 2026	14.8	14.7	14.7	14.8	14.55	164,116
August 17, 2026	14.8	14.8	14.8	14.85	14.7	198,571
August 14, 2026	15.1	14.8	14.8	15.1	14.65	616,897
August 13, 2026	14.9	15.1	15.1	15.3	14.9	451,001
August 12, 2026	14.65	14.8	14.8	15.05	14.6	533,497
August 11, 2026	14.3	14.65	14.65	14.65	14.2	331,043
August 10, 2026	14.65	14.65	14.65	14.9	14.55	275,391
August 07, 2026	14.4	14.5	14.5	14.7	14.3	238,719
August 06, 2026	14.4	14.4	14.4	14.4	14.2	142,769
August 05, 2026	14.45	14.4	14.4	14.6	14.4	142,778
August 04, 2026	14.35	14.3	14.3	14.35	14.25	133,943
August 03, 2026	14.35	14.4	14.4	14.45	14.15	83,364
July 31, 2026	14.75	14.4	14.4	14.75	14.4	157,370
July 30, 2026	14.45	14.4	14.4	14.6	14.3	135,013
July 29, 2026	14.9	14.6	14.6	15.1	14.5	261,241
July 28, 2026	15.35	14.95	14.95	15.35	14.95	226,909
July 27, 2026	15.35	15.4	15.4	15.45	15.2	214,246
July 23, 2026	15.9	15.55	15.55	15.9	15.4	249,497
July 22, 2026	15.8	15.85	15.85	15.9	15.7	265,876
July 21, 2026	15.95	15.8	15.8	16.1	15.75	320,208
July 20, 2026	16.3	15.9	15.9	16.45	15.9	412,176
July 17, 2026	15.85	16.05	16.05	16.35	15.7	530,076
July 16, 2026	16.5	16.15	16.15	16.5	15.85	644,999
July 15, 2026	15.6	16.15	16.15	16.3	15.5	628,228
July 14, 2026	15.75	15.6	15.6	15.75	15.2	268,075
July 13, 2026	15.7	15.65	15.65	15.7	15.4	513,534
July 09, 2026	15.7	15.6	15.6	15.9	15.3	387,192
July 08, 2026	15.5	15.7	15.7	15.85	15.4	438,759
July 07, 2026	15.7	15.55	15.55	16	15.35	616,176
July 06, 2026	15.55	15.7	15.7	15.85	15.45	505,167
July 03, 2026	15.35	15.5	15.5	15.6	15.3	437,768
July 02, 2026	15.3	15.3	15.3	15.6	15.3	377,859
July 01, 2026	15.1	15.3	15.3	15.35	15.1	403,107
June 30, 2026	14.8	15.05	15.05	15.15	14.8	519,243
June 29, 2026	14.4	14.8	14.8	15.05	14.4	177,031
June 26, 2026	14.8	14.45	14.45	15.1	14.45	476,690
June 25, 2026	15	15	15	15.1	14.9	154,273
June 24, 2026	14.85	15	15	15.2	14.8	280,870
June 23, 2026	14.95	14.95	14.95	15.2	14.85	230,184
June 22, 2026	15.3	15	15	15.55	15	282,446
June 18, 2026	15.3	15.3	15.3	15.55	15.05	420,631
June 17, 2026	14.95	15.3	15.3	15.3	14.85	396,548
June 16, 2026	15.1	15	15	15.15	14.75	247,384
June 15, 2026	15.05	15	15	15.5	14.95	314,553
June 12, 2026	15.35	15.05	15.05	15.65	15	398,671
June 11, 2026	15.75	15.35	15.35	15.85	15.15	700,899
June 10, 2026	14.9	15.65	15.65	15.75	14.75	1.12M
June 09, 2026	15	14.9	14.9	15.5	14.9	557,628
June 08, 2026	15	15	15	15.2	14.55	420,965
June 05, 2026	15.15	15.45	15.45	15.6	14.9	1.26M
June 04, 2026	14.35	15.1	15.1	15.15	14.3	872,117
June 03, 2026	14.5	14.45	14.45	14.5	14.35	518,464
June 02, 2026	14.65	14.35	14.35	14.85	14.3	633,477
June 01, 2026	14.8	14.65	14.65	14.9	14.4	622,625
May 29, 2026	14.85	14.8	14.8	15	14.7	412,387
May 28, 2026	14.8	14.85	14.85	15	14.65	383,246
May 27, 2026	14.95	14.8	14.8	15	14.35	845,210