Protagonist Therapeutics, Inc. (PTGX) NASDAQ

Currency In USD

PTGX Historical Return

If you invested $1000 in Protagonist Therapeutics, Inc. (PTGX) 10 years ago, it would be worth $11,678.63 as of August 03, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $2,773.85, while $1000 invested 1 year ago would be worth $2,538.36. This corresponds to total returns of 1,067.86%, 177.39%, 153.84%, respectively, with annualized returns of 27.91%, 22.62%, 153.84%.

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

PTGX Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
July 31, 2026	138.36	136.64	136.64	138.37	131.69	548,760
July 30, 2026	131.77	138.64	138.64	138.95	130.63	545,519
July 29, 2026	136.9	133	133	137.43	132.72	560,642
July 28, 2026	136.69	136.84	136.84	137	133.2	282,382
July 27, 2026	136.11	135.56	135.56	139.92	135.43	416,659
July 23, 2026	133.79	135.43	135.43	137.32	132	605,773
July 22, 2026	139.45	135.44	135.44	139.45	134.42	710,437
July 21, 2026	133.34	138.31	138.31	139.72	131.05	578,907
July 20, 2026	141.79	134.27	134.27	143.29	133.64	762,541
July 17, 2026	131.37	140.91	140.91	141.08	131.37	519,072
July 16, 2026	135.21	132.02	132.02	136.56	131.35	601,998
July 15, 2026	128	135.46	135.46	139.22	126.97	836,083
July 14, 2026	131.89	131.27	131.27	131.95	128.68	564,974
July 13, 2026	130.05	129.89	129.89	131.36	125.32	541,006
July 10, 2026	137.12	131.42	131.42	137.12	130.64	937,177
July 09, 2026	139.26	137.64	137.64	141.1	136.99	1.17M
July 08, 2026	139.5	140.07	140.07	140.95	136.08	914,983
July 07, 2026	132.59	140.85	140.85	141.08	130.69	1.37M
July 06, 2026	131.25	131.5	131.5	132.79	128.15	639,781
July 02, 2026	125.89	131.62	131.62	131.87	125.24	704,758
July 01, 2026	122.96	125.17	125.17	126.04	122.48	496,518
June 30, 2026	122.04	122.58	122.58	124.72	119.57	556,980
June 29, 2026	121.34	121.63	121.63	126.59	118.27	740,175
June 26, 2026	122	121.88	121.88	123.43	118.31	2.58M
June 25, 2026	122.31	122.63	122.63	126.25	121.48	1.04M
June 24, 2026	119.38	122.15	122.15	124.8	118.81	1.12M
June 23, 2026	114.66	118.96	118.96	119.85	114.56	661,241
June 22, 2026	113.24	115.03	115.03	116.57	113.24	1.19M
June 18, 2026	112.88	112.86	112.86	114.49	111.17	1.52M
June 17, 2026	110.84	111.44	111.44	113.47	110.11	685,664
June 16, 2026	112.83	110.64	110.64	113.66	108.53	338,750
June 15, 2026	109.1	112.46	112.46	112.77	109.1	451,324
June 12, 2026	109.85	109.78	109.78	111.78	109.6	447,341
June 11, 2026	106.28	109.79	109.79	110.82	106.28	561,677
June 10, 2026	105.5	105.77	105.77	111.45	104.89	767,020
June 09, 2026	99.76	105.87	105.87	106.48	98.08	875,273
June 08, 2026	98.95	98.03	98.03	101.16	96.7	564,913
June 05, 2026	103.14	97.38	97.38	103.29	96.38	871,163
June 04, 2026	96.39	102.79	102.79	103.55	96.14	657,797
June 03, 2026	93.93	95.41	95.41	95.61	93	554,292
June 02, 2026	93.84	93.23	93.23	97.71	92.75	720,165
June 01, 2026	97.88	94.92	94.92	98.5	93.5	814,949
May 29, 2026	100.64	99.56	99.56	102.4	98.84	567,861
May 28, 2026	102.74	100.41	100.41	103.71	99.43	551,472
May 27, 2026	100.05	102.21	102.21	102.49	98.94	404,783
May 26, 2026	100.03	99.98	99.98	100.8	97.93	360,749
May 22, 2026	102.01	99.19	99.19	102.42	99.13	360,762
May 21, 2026	101.13	102.01	102.01	103.43	98.6	402,437
May 20, 2026	99.03	100.88	100.88	101.9	98.37	371,675
May 19, 2026	100.38	98.37	98.37	100.38	96.92	485,534
May 18, 2026	103.22	100.74	100.74	104.16	100.58	447,230
May 15, 2026	104.22	102.18	102.18	104.39	101.72	560,751
May 14, 2026	104.3	105.55	105.55	105.72	101.67	407,143
May 13, 2026	99.58	103.88	103.88	104.2	98.22	518,199
May 12, 2026	103.5	99.95	99.95	103.66	98.36	645,706
May 11, 2026	100.14	103.5	103.5	105.33	99.94	572,030
May 08, 2026	98.51	99.36	99.36	100.15	97	504,963
May 07, 2026	103.55	98.85	98.85	104.68	98.53	836,855
May 06, 2026	103	103.97	103.97	105.03	98.95	989,851
May 05, 2026	100.32	99.21	99.21	101.37	97.45	391,053