PRTO Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Sep 22, 2026	27.91	27.91	27.91	27.91	27.91	0.40%	11
Sep 21, 2026	27.80	27.80	27.80	27.80	27.79	0.60%	11
Sep 18, 2026	27.56	27.63	27.56	27.63	27.63	0.04%	419
Sep 17, 2026	27.61	27.64	27.61	27.62	27.62	1.02%	1,232
Sep 16, 2026	27.34	27.34	27.34	27.34	27.34	-0.50%	11
Sep 15, 2026	27.48	27.48	27.48	27.48	27.48	-0.35%	43
Sep 14, 2026	27.58	27.58	27.58	27.58	27.58	-0.75%	216
Sep 11, 2026	27.78	27.78	27.78	27.78	27.78	0.42%	11
Sep 10, 2026	27.81	27.81	27.67	27.67	27.67	-0.91%	1,143
Sep 9, 2026	27.92	27.92	27.92	27.92	27.92	-0.37%	12
Sep 8, 2026	28.10	28.11	28.03	28.03	28.03	-0.55%	498
Sep 4, 2026	28.18	28.18	28.18	28.18	28.18	0.08%	8
Sep 3, 2026	28.16	28.16	28.16	28.16	28.16	0.76%	10
Sep 2, 2026	27.95	27.95	27.95	27.95	27.95	0.80%	8
Sep 1, 2026	27.73	27.73	27.73	27.73	27.73	-1.28%	12
Aug 31, 2026	28.12	28.12	27.95	28.09	28.09	-0.22%	940
Aug 28, 2026	28.37	28.37	28.15	28.15	28.15	-1.32%	734
Aug 27, 2026	28.50	28.53	28.50	28.53	28.53	0.53%	309
Aug 26, 2026	28.38	28.38	28.38	28.38	28.38	-0.34%	16
Aug 25, 2026	28.41	28.47	28.41	28.47	28.47	0.25%	108
Aug 24, 2026	28.43	28.44	28.33	28.40	28.40	-0.44%	812
Aug 21, 2026	28.43	28.53	28.43	28.53	28.53	0.83%	109
Aug 20, 2026	28.33	28.33	28.29	28.29	28.29	-0.50%	224
Aug 19, 2026	28.44	28.54	28.44	28.44	28.44	0.81%	609
Aug 18, 2026	28.52	28.52	28.21	28.21	28.21	-1.31%	213
Aug 17, 2026	28.58	28.58	28.58	28.58	28.58	0.22%	15
Aug 14, 2026	28.52	28.52	28.52	28.52	28.52	0.34%	7
Aug 13, 2026	28.42	28.42	28.42	28.42	28.42	0.11%	7
Aug 12, 2026	28.39	28.39	28.39	28.39	28.39	0.73%	7
Aug 11, 2026	28.18	28.18	28.18	28.18	28.18	0.11%	8
Aug 10, 2026	28.15	28.15	28.15	28.15	28.15	0.06%	7
Aug 7, 2026	28.14	28.15	28.14	28.14	28.14	1.18%	531
Aug 6, 2026	27.81	27.81	27.81	27.81	27.81	-0.38%	7
Aug 5, 2026	27.92	27.92	27.92	27.92	27.91	0.23%	21
Aug 4, 2026	27.60	27.85	27.60	27.85	27.85	1.79%	532
Aug 3, 2026	27.36	27.36	27.36	27.36	27.36	0.88%	6
Jul 31, 2026	27.10	27.18	27.10	27.12	27.12	-0.24%	340
Jul 30, 2026	27.09	27.19	27.09	27.19	27.19	1.60%	106
Jul 29, 2026	26.91	27.06	26.76	26.76	26.76	-1.02%	8,613
Jul 28, 2026	27.04	27.04	27.04	27.04	27.04	-0.52%	6
Jul 27, 2026	27.18	27.18	27.18	27.18	27.18	0.04%	6
Jul 24, 2026	27.17	27.17	27.17	27.17	27.17	-0.29%	16
Jul 23, 2026	27.23	27.24	27.23	27.24	27.24	-0.88%	760
Jul 22, 2026	27.57	27.57	27.48	27.48	27.48	0.11%	14,284
Jul 21, 2026	27.38	27.46	27.38	27.46	27.45	1.53%	14,457
Jul 20, 2026	27.06	27.11	27.04	27.04	27.04	-0.41%	717
Jul 17, 2026	27.22	27.25	27.15	27.15	27.15	-0.19%	793
Jul 16, 2026	27.30	27.30	27.19	27.21	27.20	-0.75%	3,006
Jul 15, 2026	27.41	27.41	27.41	27.41	27.41	0.03%	109
Jul 14, 2026	27.41	27.41	27.38	27.40	27.40	0.65%	406