PRTO Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 30, 2026	27.78	27.78	27.78	27.78	27.78	0.81%	7
Jun 29, 2026	27.56	27.56	27.56	27.56	27.56	0.11%	66
Jun 26, 2026	27.53	27.53	27.53	27.53	27.53	-0.02%	2
Jun 25, 2026	27.53	27.53	27.50	27.53	27.53	1.12%	225
Jun 24, 2026	27.27	27.28	27.23	27.23	27.23	-0.81%	402
Jun 23, 2026	27.58	27.58	27.45	27.45	27.45	-1.49%	890
Jun 22, 2026	27.87	27.87	27.87	27.87	27.87	0.19%	100
Jun 18, 2026	27.81	27.81	27.81	27.81	27.81	1.21%	1
Jun 17, 2026	27.90	27.90	27.48	27.48	27.48	-1.36%	1,000
Jun 16, 2026	28.11	28.11	27.86	27.86	27.86	-0.50%	2,341
Jun 15, 2026	28.15	28.16	28.00	28.00	28.00	1.25%	801
Jun 12, 2026	27.65	27.65	27.65	27.65	27.65	0.57%	-
Jun 11, 2026	27.50	27.50	27.50	27.50	27.50	2.50%	-
Jun 10, 2026	27.28	27.28	26.83	26.83	26.82	-1.47%	2,443
Jun 9, 2026	27.52	27.52	26.83	27.23	27.23	-0.45%	9,047
Jun 8, 2026	27.38	27.50	27.35	27.35	27.35	0.54%	6,492
Jun 5, 2026	27.83	27.83	27.14	27.20	27.20	-3.01%	18,453
Jun 4, 2026	28.02	28.05	28.02	28.05	28.05	0.61%	1,000
Jun 3, 2026	27.89	27.90	27.88	27.88	27.88	-0.71%	1,134
Jun 2, 2026	28.08	28.08	28.08	28.08	28.08	0.51%	50
Jun 1, 2026	27.93	27.93	27.93	27.93	27.93	-0.24%	55
May 29, 2026	28.00	28.00	28.00	28.00	28.00	-0.04%	1
May 28, 2026	27.91	28.02	27.87	28.01	28.01	0.47%	815
May 27, 2026	27.83	27.88	27.83	27.88	27.88	-0.39%	213
May 26, 2026	27.99	27.99	27.99	27.99	27.99	1.03%	3
May 22, 2026	27.70	27.70	27.70	27.70	27.70	0.40%	-
May 21, 2026	27.60	27.60	27.60	27.60	27.59	0.48%	6
May 20, 2026	27.46	27.46	27.46	27.46	27.46	1.40%	11
May 19, 2026	27.07	27.11	27.02	27.08	27.08	-0.83%	1,663
May 18, 2026	27.34	27.34	27.21	27.31	27.31	-0.12%	1,302
May 15, 2026	27.37	27.40	27.32	27.34	27.34	-1.73%	2,668
May 14, 2026	27.89	27.89	27.82	27.82	27.82	0.24%	115
May 13, 2026	27.60	27.76	27.60	27.76	27.76	0.02%	606
May 12, 2026	27.65	27.75	27.57	27.75	27.75	-0.59%	401
May 11, 2026	27.93	27.94	27.92	27.92	27.92	0.37%	2,735
May 8, 2026	27.81	27.81	27.81	27.81	27.81	0.91%	8
May 7, 2026	27.79	27.80	27.56	27.56	27.56	-0.88%	1,178
May 6, 2026	27.75	27.82	27.74	27.81	27.81	1.36%	477
May 5, 2026	27.42	27.46	27.42	27.44	27.44	1.26%	773
May 4, 2026	27.27	27.27	27.10	27.10	27.10	-0.73%	282
May 1, 2026	27.30	27.37	27.29	27.29	27.29	0.28%	633
Apr 30, 2026	27.13	27.22	27.13	27.22	27.22	1.69%	150
Apr 29, 2026	26.78	26.84	26.74	26.77	26.77	-0.35%	2,203
Apr 28, 2026	26.85	26.86	26.85	26.86	26.86	-0.98%	208
Apr 27, 2026	27.13	27.13	27.13	27.13	27.13	-0.06%	134
Apr 24, 2026	27.13	27.14	27.13	27.14	27.14	0.44%	737
Apr 23, 2026	27.19	27.19	26.80	27.02	27.02	0.09%	5,657
Apr 22, 2026	27.00	27.01	26.95	27.00	27.00	0.76%	646
Apr 21, 2026	27.22	27.22	26.79	26.79	26.79	-1.22%	2,090
Apr 20, 2026	27.09	27.18	27.07	27.12	27.12	0.02%	1,437