ALGN Historical Stock Prices & CSV Downloads

Align Technology, Inc. (ALGN), daily historical prices. Prices in USD.
Date	Open	High	Low	Close		Volume
Oct 30, 2026	153.98	155.54	147.52	149.89	149.89	1,119,600
Oct 29, 2026	152.98	156.50	148.00	153.71	153.71	2,007,600
Oct 28, 2026	151.22	155.48	151.17	153.62	153.62	1,300,500
Oct 27, 2026	152.03	152.70	150.77	151.95	151.95	681,800
Oct 26, 2026	153.49	154.92	150.76	152.26	152.26	942,100
Oct 23, 2026	154.79	155.80	152.70	154.51	154.51	911,600
Oct 22, 2026	151.50	155.94	151.39	155.51	155.51	1,160,200
Oct 21, 2026	150.73	153.30	149.52	151.37	151.37	905,000
Oct 20, 2026	148.60	150.70	147.86	150.50	150.50	912,600
Oct 19, 2026	147.36	149.88	145.40	149.00	149.00	771,700
Oct 16, 2026	150.37	152.27	146.14	147.31	147.31	953,000
Oct 15, 2026	143.92	149.78	142.45	149.34	149.34	1,140,800
Oct 14, 2026	143.54	144.60	141.86	144.44	144.44	718,400
Oct 13, 2026	141.01	143.65	139.81	143.54	143.54	997,900
Oct 12, 2026	143.23	144.11	140.33	140.42	140.42	849,800
Oct 9, 2026	141.00	142.86	140.10	142.71	142.71	1,079,200
Oct 8, 2026	138.59	141.12	138.05	141.03	141.03	1,344,500
Oct 7, 2026	140.46	141.00	138.95	139.87	139.87	678,800
Oct 6, 2026	141.96	143.64	141.14	141.45	141.45	1,020,200
Oct 5, 2026	140.07	142.35	138.36	140.65	140.65	1,680,100
Oct 2, 2026	147.09	147.09	143.23	143.74	143.74	550,000
Oct 1, 2026	145.00	146.23	143.23	145.35	145.35	619,800
Sep 30, 2026	144.61	146.68	142.83	145.35	145.35	917,800
Sep 29, 2026	145.00	145.93	142.24	144.01	144.01	937,300
Sep 28, 2026	145.00	146.20	143.33	145.00	145.00	882,800

Historical stock data.