Stockwatch

Close Prices Last 3 Months

Price/volumes not adjusted for restructures

Date	Ex	Sym	Open	High	Low	Close	Chg	Vol	#Tr	Bid	Ask
2026-02-06	Q	ALGN	177.89	188.67	176.66	187.60	11.98	1,967,412	35,394	186.50	196.00
2026-02-05	Q	ALGN	176.06	179.91	172.00	175.62	14.32	2,674,493	39,649	172.00	196.00
2026-02-04	Q	ALGN	157.24	170.08	156.25	161.30	4.25	2,939,050	29,845	178.35	196.00
2026-02-03	Q	ALGN	163.74	165.465	154.83	157.05	-6.58	1,186,146	22,371	150.00	165.00
2026-02-02	Q	ALGN	162.83	165.00	161.115	163.63	0.60	1,102,079	16,979	161.61	168.92
2026-01-30	Q	ALGN	164.12	165.79	160.995	163.03	-1.09	1,181,709	19,266	159.37	167.25
2026-01-29	Q	ALGN	166.14	166.14	160.66	164.12	-0.80	737,442	14,182	163.00	167.46
2026-01-28	Q	ALGN	167.53	167.53	163.6525	164.92	-2.12	624,393	11,918	163.65	255.55
2026-01-27	Q	ALGN	166.45	168.54	164.53	167.04	-0.61	685,632	12,921	164.75	169.75
2026-01-26	Q	ALGN	168.80	168.80	166.66	167.65	-1.08	505,426	10,321	165.56	169.79
2026-01-23	Q	ALGN	168.20	169.865	167.5663	168.73	-0.19	408,011	10,273	167.51	169.42
2026-01-22	Q	ALGN	171.15	172.36	167.485	168.92	-1.03	661,961	12,905	168.00	169.90
2026-01-21	Q	ALGN	167.68	172.00	167.32	169.95	4.40	1,031,067	12,581	166.68	173.89
2026-01-20	Q	ALGN	167.28	169.33	164.435	165.55	-5.94	1,118,684	17,232	165.28	166.77
2026-01-19	Q	ALGN	171.00	174.67	171.00	171.49	0.02	0	0	170.47	172.16
2026-01-16	Q	ALGN	171.00	174.67	171.00	171.49	0.02	1,371,040	16,219	170.47	172.16
2026-01-15	Q	ALGN	169.74	172.62	167.40	171.47	2.24	907,726	12,878	167.90	171.66
2026-01-14	Q	ALGN	169.33	171.59	168.88	169.23	-0.97	814,889	15,054	163.81	169.19
2026-01-13	Q	ALGN	171.98	172.51	167.95	170.20	-1.80	913,595	14,920	166.94	185.00
2026-01-12	Q	ALGN	173.36	174.01	168.84	172.00	-0.79	885,371	15,060	170.74	172.34
2026-01-09	Q	ALGN	171.305	173.035	168.02	172.79	2.21	769,862	17,364	171.00	176.49
2026-01-08	Q	ALGN	166.82	172.10	166.81	170.58	3.77	859,323	15,629	169.80	320.00
2026-01-07	Q	ALGN	168.49	169.32	165.88	166.81	-0.85	787,412	15,404	166.37	167.46
2026-01-06	Q	ALGN	160.47	168.04	160.11	167.66	7.53	1,164,702	18,914	166.83	168.65
2026-01-05	Q	ALGN	155.08	161.16	154.79	160.13	4.10	1,279,241	17,502	158.28	180.00
2026-01-02	Q	ALGN	157.72	158.09	154.615	156.03	-0.12	809,635	15,291	155.00	158.73
2026-01-01	Q	ALGN	157.12	158.03	156.03	156.15	-1.985	0	0	155.59	156.81
2025-12-31	Q	ALGN	157.12	158.03	156.03	156.15	-1.985	496,399	10,694	155.59	156.81
2025-12-30	Q	ALGN	157.62	158.36	156.61	158.135	0.295	574,596	12,245	156.00	158.58
2025-12-29	Q	ALGN	157.95	159.155	157.43	157.84	-0.53	838,204	13,974	76.59	158.10
2025-12-26	Q	ALGN	157.56	158.64	156.76	158.37	0.53	503,119	10,755	156.47	160.27
2025-12-25	Q	ALGN	156.76	158.62	154.98	157.84	1.08	0	0	156.28	157.90
2025-12-24	Q	ALGN	156.76	158.62	154.98	157.84	1.08	407,351	6,830	156.28	157.90
2025-12-23	Q	ALGN	158.48	158.585	155.98	156.76	-2.52	934,425	16,831	155.95	162.21
2025-12-22	Q	ALGN	158.69	160.11	157.94	159.28	1.59	1,099,097	15,450	155.93	160.00
2025-12-19	Q	ALGN	160.95	161.60	156.47	157.69	-3.75	2,638,512	23,249	157.65	269.45
2025-12-18	Q	ALGN	161.88	162.58	159.97	161.44	0.871	1,141,294	15,627	160.28	161.48
2025-12-17	Q	ALGN	163.00	165.26	159.40	160.58	-2.321	1,165,080	18,075	160.65	161.83
2025-12-16	Q	ALGN	162.49	164.11	161.19	162.89	0.16	1,286,476	18,428	160.49	167.75
2025-12-15	Q	ALGN	166.49	167.02	162.60	162.73	-2.70	1,119,523	20,990	160.86	166.43
2025-12-12	Q	ALGN	164.15	166.83	163.00	165.43	1.56	1,685,909	24,569	164.28	169.36
2025-12-11	Q	ALGN	164.11	165.27	162.11	163.87	-0.71	1,188,073	14,208	160.07	164.28
2025-12-10	Q	ALGN	159.02	166.61	159.01	164.58	5.58	1,233,636	19,153	163.96	166.58
2025-12-09	Q	ALGN	160.45	162.89	157.98	159.00	1.32	1,505,260	24,324	157.99	159.44
2025-12-08	Q	ALGN	157.34	158.92	156.66	157.68	0.47	1,180,021	17,024	157.52	158.00
2025-12-05	Q	ALGN	157.92	159.50	155.395	157.21	0.37	1,565,422	24,958	156.28	160.00
2025-12-04	Q	ALGN	154.705	156.95	153.17	156.84	1.84	1,363,894	19,198	154.28	159.38
2025-12-03	Q	ALGN	151.55	156.60	150.92	155.00	4.07	1,571,187	24,462	151.66	168.00
2025-12-02	Q	ALGN	147.14	152.06	146.12	150.93	4.21	1,975,102	21,126	148.28	152.00
2025-12-01	Q	ALGN	145.10	148.465	144.00	146.72	-0.47	1,657,004	23,043	145.35	147.61
2025-11-28	Q	ALGN	147.51	148.09	146.25	147.19	-0.04	732,773	11,022	147.18	147.97
2025-11-27	Q	ALGN	147.35	149.44	146.46	147.23	-0.27	0	0	146.28	152.53
2025-11-26	Q	ALGN	147.35	149.44	146.46	147.23	-0.27	1,567,953	18,962	146.28	152.53
2025-11-25	Q	ALGN	144.43	152.99	144.30	147.50	3.87	2,572,486	32,171	146.00	147.83
2025-11-24	Q	ALGN	142.00	145.11	139.13	143.63	1.07	6,263,953	31,707	143.64	146.00
2025-11-21	Q	ALGN	132.96	143.46	132.635	142.56	9.75	1,814,117	24,728	140.00	142.92
2025-11-20	Q	ALGN	133.97	137.41	132.74	132.81	-0.87	924,369	19,366	132.82	136.89
2025-11-19	Q	ALGN	132.26	134.97	131.95	133.68	1.40	1,049,946	18,355	130.61	137.23
2025-11-18	Q	ALGN	132.47	132.87	130.23	132.28	-0.33	1,593,522	22,168	131.41	133.10
2025-11-17	Q	ALGN	135.52	136.56	131.66	132.61	-4.52	902,623	18,646	132.60	134.72
2025-11-14	Q	ALGN	137.01	138.02	136.00	137.13	-2.29	809,693	16,313	125.00	139.98
2025-11-13	Q	ALGN	140.32	143.42	138.93	139.42	-2.27	1,026,793	19,635	137.75	142.28
2025-11-12	Q	ALGN	144.45	145.25	140.69	141.69	-2.80	1,212,921	20,246	141.16	141.50
2025-11-11	Q	ALGN	139.32	144.84	138.25	144.49	6.26	1,427,806	22,644	143.65	145.04
2025-11-10	Q	ALGN	136.47	138.50	134.016	138.23	3.39	872,603	17,988	138.26	138.78