Align Technology Inc (ALGN) — Price History

As of 2026-10-30 — refreshed nightly from the Closelooknet data lake. Diary readings, not advice.

The Closelooknet read

Signal: Downtrend stack — Trades -0.4% vs the 50-day and -11.2% vs the 200-day average, 25.2% below the 52-week high and +15.1% off the 52-week low; a death cross printed 38 sessions ago. Computed from daily closes. (as of 2026-10-30)
Trend: Align Technology Inc trades 0.4% below its 50-day and 11.2% below its 200-day moving average. (as of 2026-10-30)

Align Technology makes Invisalign clear aligners for straightening teeth, Vivera retainers, and iTero intraoral scanners that dentists and orthodontists use to plan and monitor treatment. Its Clear Aligner business covers different aligner lines for adults, teenagers and younger children, plus training and accessory products for the professionals who fit them.

The full read — the desk's view, the earnings record, peers and the company snapshot — is on the ALGN overview; the trend detail on the technical tab. Research diary readings, not advice.

Daily prices

Date	Open	High	Low	Close	Chg %	Volume
2026-10-30	153.98	155.54	147.57	149.89	-2.49%	1,119,629
2026-10-29	152.98	156.50	148.00	153.71	+0.06%	2,007,600
2026-10-28	151.22	155.48	151.17	153.62	+1.10%	1,300,500
2026-10-27	152.03	152.70	150.77	151.95	-0.20%	681,800
2026-10-26	153.49	154.92	150.76	152.26	-1.46%	942,100
2026-10-23	154.79	155.80	152.70	154.51	-0.64%	911,600
2026-10-22	151.50	155.94	151.39	155.51	+2.74%	1,160,229
2026-10-21	150.73	153.30	149.52	151.37	+0.58%	905,223
2026-10-20	148.60	150.70	147.86	150.50	+1.00%	912,754
2026-10-19	147.36	149.88	145.40	149.00	+1.15%	771,679
2026-10-16	150.37	152.27	146.14	147.31	-1.36%	953,000
2026-10-15	143.92	149.78	142.45	149.34	+3.39%	1,140,800
2026-10-14	143.54	144.60	141.86	144.44	+0.63%	718,400
2026-10-13	141.01	143.65	139.81	143.54	+2.22%	997,900
2026-10-12	143.23	144.11	140.33	140.42	-1.60%	849,800
2026-10-09	141.00	142.86	140.10	142.71	+1.19%	1,079,200
2026-10-08	138.59	141.12	138.05	141.03	+0.83%	1,344,500
2026-10-07	140.46	141.00	138.95	139.87	-1.12%	678,800
2026-10-06	141.96	143.64	141.14	141.45	+0.57%	1,020,200
2026-10-05	140.07	142.35	138.36	140.65	-2.15%	1,680,100
2026-10-02	147.09	147.09	143.23	143.74	-1.11%	550,000
2026-10-01	145.00	146.23	143.23	145.35	+0.00%	619,800
2026-09-30	144.61	146.68	142.83	145.35	+0.93%	917,800
2026-09-29	145.00	145.93	142.24	144.01	-0.68%	937,300
2026-09-28	145.00	146.20	143.33	145.00	-1.21%	882,800
2026-09-25	145.57	148.17	144.20	146.78	+0.79%	829,600
2026-09-24	148.65	149.22	145.27	145.63	-1.71%	785,800
2026-09-23	152.50	153.40	147.07	148.17	-3.34%	1,327,000
2026-09-22	149.17	154.10	147.62	153.29	+4.36%	966,900
2026-09-21	147.97	148.37	145.55	146.88	-0.49%	975,800
2026-09-18	149.52	150.78	146.20	147.61	-1.40%	1,498,300
2026-09-17	151.21	152.11	148.98	149.71	-0.49%	796,000
2026-09-16	148.18	152.46	147.56	150.45	+2.35%	946,500
2026-09-15	151.46	152.49	146.82	147.00	-3.92%	1,025,200
2026-09-14	151.29	153.86	150.67	153.00	+1.45%	718,600
2026-09-11	153.30	153.87	149.49	150.82	+0.07%	619,800
2026-09-10	150.55	151.22	148.50	150.72	-1.44%	836,100
2026-09-09	152.54	153.88	151.32	152.92	-0.37%	1,107,300
2026-09-08	156.13	156.13	153.14	153.49	-3.25%	807,200
2026-09-04	157.67	160.50	155.24	158.64	-0.76%	990,500
2026-09-03	159.65	162.92	155.84	159.86	+0.45%	694,100
2026-09-02	155.50	160.85	155.50	159.15	+2.70%	687,100
2026-09-01	158.21	159.33	153.98	154.96	-3.02%	576,400
2026-08-31	155.36	160.48	154.50	159.79	+1.40%	1,288,300
2026-08-28	158.51	159.97	157.21	157.58	-0.79%	954,600
2026-08-27	157.80	162.09	157.77	158.84	-0.19%	801,200
2026-08-26	158.85	161.66	158.53	159.14	-0.29%	653,600
2026-08-25	158.85	160.69	157.27	159.61	-0.02%	811,600
2026-08-24	162.25	162.80	159.07	159.64	-1.79%	762,000
2026-08-21	159.74	162.77	157.39	162.55	+2.27%	1,074,700
2026-08-20	162.52	164.64	157.34	158.94	-2.51%	836,700
2026-08-19	170.02	173.67	162.62	163.04	-2.90%	928,900
2026-08-18	171.57	172.37	167.78	167.91	-1.90%	744,700
2026-08-17	179.05	181.33	170.16	171.16	-5.60%	916,500
2026-08-14	176.73	182.20	176.72	181.31	+2.90%	960,000
2026-08-13	175.61	176.49	172.85	176.20	+1.25%	541,400
2026-08-12	172.96	174.74	169.46	174.02	+0.61%	658,400
2026-08-11	174.67	178.46	172.80	172.96	-1.75%	549,900
2026-08-10	173.02	176.49	172.70	176.04	+1.37%	643,600
2026-08-07	169.15	173.84	165.00	173.66	+2.71%	870,100
2026-08-06	173.43	174.09	168.67	169.08	-3.29%	655,700
2026-08-05	170.89	175.54	170.89	174.83	+0.90%	1,020,300
2026-08-04	172.10	174.33	170.50	173.27	+0.22%	1,116,100
2026-08-03	171.41	175.48	171.00	172.89	+2.21%	998,800
2026-07-31	170.81	171.75	164.74	169.16	-2.45%	1,608,000
2026-07-30	180.72	187.96	171.04	173.41	-3.70%	1,534,300
2026-07-29	175.60	184.00	174.41	180.08	+2.55%	1,657,600
2026-07-28	169.93	175.85	169.93	175.60	+4.49%	914,000
2026-07-27	165.43	172.10	164.75	168.05	+0.62%	1,032,700
2026-07-24	168.50	170.51	165.97	167.02	-0.73%	846,000
2026-07-23	169.28	171.31	165.67	168.24	-2.45%	821,000
2026-07-22	178.78	178.78	172.21	172.46	-2.84%	511,900
2026-07-21	175.05	179.30	173.01	177.50	+1.40%	683,100
2026-07-20	177.08	177.99	174.05	175.05	-0.97%	1,060,200
2026-07-17	176.19	181.17	174.93	176.76	-0.92%	828,700
2026-07-16	181.25	182.93	176.32	178.41	-1.57%	1,378,100
2026-07-15	178.23	184.60	178.23	181.26	+1.57%	604,800
2026-07-14	181.54	182.44	175.14	178.46	-1.18%	417,700
2026-07-13	180.14	184.62	179.78	180.59	+0.64%	486,800
2026-07-10	179.61	181.22	175.00	179.45	+0.72%	630,800
2026-07-09	174.42	180.29	173.70	178.17	+2.00%	1,086,100
2026-07-08	182.55	185.07	173.97	174.68	-5.69%	1,018,600
2026-07-07	189.61	190.97	183.79	185.22	-1.68%	913,500
2026-07-06	183.72	188.60	179.37	188.39	+2.10%	1,104,700
2026-07-02	183.11	186.52	181.53	184.52	+1.67%	1,354,100
2026-07-01	168.66	182.84	166.91	181.49	+7.61%	1,506,000
2026-06-30	172.80	173.43	166.27	168.66	-2.75%	1,372,600
2026-06-29	177.62	178.34	170.05	173.43	-2.80%	973,300
2026-06-26	174.03	179.35	174.03	178.43	+1.55%	1,668,700
2026-06-25	172.99	176.70	171.54	175.71	+2.81%	850,500
2026-06-24	170.34	174.37	165.50	170.90	+1.43%	1,502,700
2026-06-23	172.67	174.67	168.29	168.49	-3.03%	1,112,500
2026-06-22	178.50	180.55	173.48	173.76	-4.57%	1,277,800
2026-06-18	176.70	183.03	173.56	182.08	+4.93%	1,949,700
2026-06-17	179.36	185.00	172.16	173.53	-3.34%	843,700
2026-06-16	178.27	181.22	177.75	179.52	+0.71%	635,200
2026-06-15	177.88	182.59	177.21	178.26	+1.96%	1,091,800
2026-06-12	176.51	177.49	172.43	174.84	-0.95%	574,500
2026-06-11	170.50	177.88	169.30	176.51	+3.52%	1,029,400
2026-06-10	177.73	179.21	169.99	170.50	-4.27%	1,155,000
2026-06-09	174.51	179.85	172.59	178.10	+3.52%	1,044,500
2026-06-08	167.55	173.29	167.08	172.05	+2.57%	1,010,900
2026-06-05	168.29	171.00	166.40	167.74	-0.33%	494,400
2026-06-04	164.90	168.42	164.07	168.29	+4.07%	979,600
2026-06-03	166.27	167.13	160.70	161.71	-2.99%	1,068,900
2026-06-02	169.77	173.47	165.99	166.69	-1.81%	901,900
2026-06-01	172.40	173.40	169.30	169.77	-2.96%	856,800
2026-05-29	173.79	177.66	171.92	174.95	+0.98%	1,154,900
2026-05-28	162.88	173.78	160.33	173.25	+6.37%	1,590,700
2026-05-27	164.80	167.50	161.43	162.88	-0.41%	1,553,300
2026-05-26	164.97	166.00	162.32	163.55	-0.04%	873,500
2026-05-22	162.90	165.48	161.17	163.61	+0.35%	844,500
2026-05-21	162.15	165.01	160.43	163.04	-0.21%	1,163,600
2026-05-20	155.16	163.95	151.58	163.38	+5.30%	1,518,200
2026-05-19	158.59	159.69	154.20	155.16	-2.28%	1,403,600
2026-05-18	158.02	161.22	155.90	158.78	+0.97%	982,700
2026-05-15	159.55	161.00	156.99	157.25	-2.04%	923,600
2026-05-14	161.40	163.59	159.85	160.53	-0.75%	633,700
2026-05-13	165.42	165.77	160.88	161.75	-2.44%	636,400
2026-05-12	164.78	167.65	163.60	165.79	+0.72%	630,600
2026-05-11	168.88	169.66	162.72	164.61	-2.47%	1,129,400
2026-05-08	168.39	169.18	163.29	168.78	+0.23%	835,800
2026-05-07	174.96	176.46	167.82	168.39	-3.19%	753,300
2026-05-06	169.47	174.96	168.73	173.94	+3.10%	768,400
2026-05-05	171.26	172.62	167.77	168.71	-1.84%	751,200
2026-05-04	175.73	178.12	171.27	171.88	-3.93%	703,600
2026-05-01	177.16	179.37	174.98	178.91	+1.65%	840,300
2026-04-30	177.00	177.11	167.46	176.01	-1.34%	1,932,700
2026-04-29	177.28	180.42	176.08	178.40	+0.63%	1,378,600
2026-04-28	183.76	183.76	174.62	177.28	-4.02%	1,705,600
2026-04-27	189.71	192.45	183.81	184.70	-2.59%	1,484,600
2026-04-24	190.96	191.91	187.01	189.61	-0.56%	738,500
2026-04-23	194.52	196.13	187.58	190.67	-2.74%	1,024,600
2026-04-22	198.12	198.12	193.67	196.05	+0.44%	922,300
2026-04-21	193.40	200.44	192.35	195.20	+1.85%	1,467,400
2026-04-20	187.35	193.00	187.05	191.66	+0.84%	1,362,700
2026-04-17	188.87	194.67	188.23	190.07	+2.73%	1,025,000
2026-04-16	186.72	189.00	184.48	185.02	-0.81%	645,900
2026-04-15	187.32	187.99	185.34	186.53	+1.00%	785,800
2026-04-14	183.10	187.99	182.63	184.69	+2.23%	879,300
2026-04-13	171.74	181.28	170.18	180.67	+4.35%	1,031,600
2026-04-10	175.27	178.23	172.34	173.14	-0.80%	784,900
2026-04-09	173.21	175.65	170.50	174.53	-1.30%	970,100
2026-04-08	177.62	185.00	176.00	176.83	+5.97%	927,400
2026-04-07	171.10	171.15	165.40	166.87	-2.91%	934,500
2026-04-06	170.07	172.73	169.13	171.87	+0.74%	501,600
2026-04-02	168.52	175.15	164.00	170.60	-1.23%	1,081,500
2026-04-01	172.61	178.17	171.74	172.73	+0.76%	872,200
2026-03-31	167.50	173.12	166.06	171.43	+3.11%	791,400
2026-03-30	168.25	168.25	164.73	166.26	-0.07%	1,056,100
2026-03-27	175.51	176.83	163.78	166.38	-6.17%	1,294,100
2026-03-26	177.66	182.97	176.73	177.33	-1.63%	652,100
2026-03-25	180.78	183.34	176.15	180.27	+0.52%	746,800
2026-03-24	177.92	181.45	175.38	179.34	-0.84%	985,600
2026-03-23	178.00	182.16	176.36	180.86	+4.43%	1,442,500
2026-03-20	175.97	178.74	171.27	173.18	-1.74%	2,108,400
2026-03-19	180.00	180.62	175.04	176.25	+2.23%	2,321,800
2026-03-18	172.97	175.43	170.50	172.41	-2.11%	1,729,400
2026-03-17	174.19	179.06	174.19	176.12	+3.94%	1,340,700
2026-03-16	166.60	169.57	164.05	169.45	+3.18%	1,514,900
2026-03-13	167.43	168.23	162.27	164.23	-1.61%	1,886,500
2026-03-12	172.80	173.76	165.73	166.92	-4.51%	1,809,900
2026-03-11	168.53	177.45	168.31	174.81	+3.18%	1,626,800
2026-03-10	176.30	176.48	169.30	169.43	-3.21%	1,514,212
2026-03-09	170.60	175.49	164.51	175.05	+0.60%	1,796,902
2026-03-06	171.20	174.31	168.01	174.00	-0.91%	1,774,000
2026-03-05	178.21	179.86	174.00	175.60	-3.60%	1,113,800
2026-03-04	183.06	184.51	181.07	182.16	-0.26%	866,300
2026-03-03	182.40	184.84	176.14	182.64	-3.38%	1,017,200
2026-03-02	184.59	189.35	181.70	189.02	-0.57%	1,044,500
2026-02-27	185.55	190.93	185.07	190.10	+0.48%	1,530,600
2026-02-26	188.53	190.80	187.50	189.20	+0.61%	869,900
2026-02-25	186.47	188.52	184.93	188.05	+1.36%	888,000
2026-02-24	180.61	186.14	179.79	185.53	+2.36%	1,268,300
2026-02-23	186.27	187.00	175.35	181.26	-4.61%	1,577,500
2026-02-20	188.23	192.69	186.37	190.02	+0.33%	1,037,300
2026-02-19	189.97	191.47	186.28	189.40	-0.74%	760,300
2026-02-18	187.82	191.48	187.61	190.82	+1.92%	1,031,800
2026-02-17	185.91	190.48	185.51	187.22	+0.24%	1,351,500
2026-02-13	184.72	188.63	181.09	186.77	+1.58%	1,272,000
2026-02-12	197.00	199.06	183.56	183.86	-6.91%	2,012,500
2026-02-11	196.60	197.71	194.22	197.51	+0.63%	1,369,600
2026-02-10	192.78	197.74	192.27	196.27	+1.96%	2,014,700
2026-02-09	188.00	193.83	185.98	192.50	+2.61%	1,872,100
2026-02-06	177.89	188.67	176.66	187.60	+6.82%	1,967,200
2026-02-05	176.06	179.91	172.00	175.62	+8.88%	2,674,100
2026-02-04	157.24	170.08	156.25	161.30	+2.71%	2,939,700
2026-02-03	163.74	165.47	154.83	157.05	-4.02%	1,186,100
2026-02-02	162.83	165.00	161.12	163.63	+0.37%	1,102,100
2026-01-30	164.12	165.79	161.00	163.03	-0.66%	1,181,800
2026-01-29	166.14	166.14	160.66	164.12	-0.49%	737,400
2026-01-28	167.53	167.53	163.65	164.92	-1.27%	624,300
2026-01-27	166.45	168.54	164.53	167.04	-0.36%	685,600
2026-01-26	168.80	168.80	166.66	167.65	-0.64%	505,400
2026-01-23	168.20	169.87	167.57	168.73	-0.11%	408,000
2026-01-22	171.15	172.36	167.49	168.92	-0.61%	662,000
2026-01-21	167.68	172.00	167.32	169.95	+2.66%	1,031,000
2026-01-20	167.28	169.33	164.44	165.55	-3.46%	1,118,700
2026-01-16	171.00	174.67	171.00	171.49	+0.01%	1,371,000
2026-01-15	169.74	172.62	167.40	171.47	+1.32%	907,700
2026-01-14	169.33	171.59	168.88	169.23	-0.57%	814,900
2026-01-13	171.98	172.51	167.95	170.20	-1.05%	913,600
2026-01-12	173.36	174.01	168.84	172.00	-0.46%	885,400
2026-01-09	171.31	173.04	168.02	172.79	+1.30%	770,300
2026-01-08	166.82	172.10	166.81	170.58	+2.26%	859,300
2026-01-07	168.49	169.32	165.88	166.81	-0.51%	787,400
2026-01-06	160.47	168.04	160.11	167.66	+4.70%	1,164,700
2026-01-05	155.08	161.16	154.79	160.13	+2.63%	1,279,200
2026-01-02	157.72	158.09	154.62	156.03	-0.08%	809,600
2025-12-31	157.12	158.03	156.03	156.15	-1.26%	496,400
2025-12-30	157.62	158.36	156.61	158.14	+0.19%	574,600
2025-12-29	157.95	159.16	157.43	157.84	-0.33%	838,200
2025-12-26	157.56	158.64	156.76	158.37	+0.34%	503,100
2025-12-24	156.76	158.62	154.98	157.84	+0.69%	407,400
2025-12-23	158.48	158.59	155.98	156.76	-1.58%	934,400
2025-12-22	158.69	160.11	157.94	159.28	+1.01%	1,098,900
2025-12-19	160.95	161.60	156.47	157.69	-2.32%	2,638,500
2025-12-18	161.88	162.58	159.97	161.44	+0.54%	1,141,300
2025-12-17	163.00	165.26	159.40	160.58	-1.42%	1,165,000
2025-12-16	162.49	164.11	161.19	162.89	+0.10%	1,287,100
2025-12-15	166.49	167.02	162.60	162.73	-1.63%	1,119,500
2025-12-12	164.15	166.83	163.00	165.43	+0.95%	1,685,900
2025-12-11	164.11	165.27	162.11	163.87	-0.43%	1,188,100
2025-12-10	159.02	166.61	159.01	164.58	+3.51%	1,233,400
2025-12-09	160.45	162.89	157.98	159.00	+0.84%	1,505,300
2025-12-08	157.34	158.92	156.66	157.68	+0.30%	1,180,000
2025-12-05	157.92	159.50	155.40	157.21	+0.24%	1,565,400
2025-12-04	154.71	156.95	153.17	156.84	+1.19%	1,364,300
2025-12-03	151.55	156.60	150.92	155.00	+2.70%	1,571,200
2025-12-02	147.14	152.06	146.12	150.93	+2.87%	1,975,000
2025-12-01	145.10	148.47	144.00	146.72	-0.32%	1,657,000
2025-11-28	147.51	148.09	146.25	147.19	-0.03%	732,800
2025-11-26	147.35	149.44	146.46	147.23	-0.18%	1,568,000
2025-11-25	144.43	152.99	144.30	147.50	+2.69%	2,572,500
2025-11-24	142.00	145.11	139.13	143.63	+0.75%	6,264,100
2025-11-21	132.96	143.46	132.64	142.56	+7.34%	1,814,100
2025-11-20	133.97	137.41	132.74	132.81	-0.65%	924,400
2025-11-19	132.26	134.97	131.95	133.68	+1.06%	1,049,900
2025-11-18	132.47	132.87	130.23	132.28	-0.25%	1,593,500
2025-11-17	135.52	136.56	131.66	132.61	-3.30%	902,600
2025-11-14	137.01	138.02	136.00	137.13	-1.64%	809,700
2025-11-13	140.32	143.42	138.93	139.42	-1.60%	1,026,800
2025-11-12	144.45	145.25	140.69	141.69	-1.94%	1,212,800
2025-11-11	139.32	144.84	138.25	144.49	+4.53%	1,427,800
2025-11-10	136.47	138.50	134.02	138.23	+2.51%	872,500
2025-11-07	132.39	134.99	132.39	134.84	+0.83%	810,900
2025-11-06	137.66	138.50	131.90	133.73	-2.54%	991,700
2025-11-05	136.46	137.58	133.39	137.21	+1.14%	1,189,800
2025-11-04	138.32	138.49	133.87	135.67	-2.06%	1,172,700
2025-11-03	137.58	138.69	133.71	138.53	+0.47%	1,246,200

Most recent 250 sessions, newest first.

Seasonal returns

Best month historically: Nov (+9.10%). Worst month: Oct (-14.16%). Based on 5 years of daily data (2022–2026).

Jan+9.01%
Feb+5.75%
Mar-0.24%
Apr-0.19%
May-5.09%
Jun+4.81%
Jul-8.39%
Aug-0.35%
Sep-5.30%
Oct-14.16%
Nov+9.10%
Dec+6.07%

FAQ · from the current price data · as of 2026-10-30

Quick answers

What is Align Technology Inc's (ALGN) latest close?

149.89 on 2026-10-30, from the Closelook data lake's daily price record.

What is ALGN's 52-week high and low?

200.44 high and 130.23 low over the trailing 52 weeks, as of 2026-10-30.

What is Align Technology Inc's strongest and weakest month historically?

Historically, ALGN's strongest calendar month has been Nov (average +9.10%) and its weakest Oct (average -14.16%), based on 5 years of daily data (2022–2026).

How many years of seasonality does this cover?

5 years (2022–2026), computed from 1024 daily bars in the Closelook data lake.

What is the current Closelooknet signal on ALGN?

Downtrend stack: Trades -0.4% vs the 50-day and -11.2% vs the 200-day average, 25.2% below the 52-week high and +15.1% off the 52-week low; a death cross printed 38 sessions ago. Computed from daily closes. As of 2026-10-30. A research diary reading, not advice.

Is ALGN above its 50-day and 200-day moving averages?

Align Technology Inc trades 0.4% below its 50-day and 11.2% below its 200-day moving average (1.5% above its 20-day). As of 2026-10-30.