NASDAQ:ALGN | Historical Stock Price | ALIGN TECHNOLOGY INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2001-01-30 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.73$5.85$19.78$66.91$226.31$765.482001-01-302026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$4.50$4.50232,500
2001-12-28$4.60$4.60194,500
2001-12-27$4.72$4.7279,200
2001-12-26$4.80$4.8099,900
2001-12-24$4.75$4.7565,300
2001-12-21$5.00$5.00337,000
2001-12-20$4.50$4.50230,100
2001-12-19$3.85$3.85133,900
2001-12-18$4.05$4.05103,700
2001-12-17$4.05$4.0592,900
2001-12-14$3.86$3.8695,000
2001-12-13$3.89$3.8945,600
2001-12-12$3.90$3.9067,200
2001-12-11$3.95$3.95128,000
2001-12-10$3.94$3.9439,200
2001-12-07$4.05$4.0587,000
2001-12-06$4.18$4.1895,400
2001-12-05$4.35$4.35204,700
2001-12-04$3.97$3.9741,500
2001-12-03$3.91$3.9166,600
2001-11-30$4.00$4.00220,500
2001-11-29$4.25$4.2562,500
2001-11-28$4.33$4.3394,100
2001-11-27$4.17$4.17127,000
2001-11-26$4.00$4.00116,500
2001-11-23$4.25$4.2515,300
2001-11-21$4.37$4.37317,900
2001-11-20$4.55$4.55274,900
2001-11-19$4.58$4.5889,100
2001-11-16$4.65$4.65164,300
2001-11-15$4.01$4.01907,400
2001-11-14$3.07$3.07772,500
2001-11-13$3.89$3.89221,500
2001-11-12$4.75$4.7550,100
2001-11-09$4.95$4.9535,000
2001-11-08$5.05$5.0537,300
2001-11-07$4.91$4.9189,600
2001-11-06$5.50$5.5099,000
2001-11-05$5.33$5.3370,100
2001-11-02$4.99$4.99294,300
2001-11-01$4.59$4.59158,700
2001-10-31$4.36$4.3657,700
2001-10-30$4.18$4.1882,200
2001-10-29$4.21$4.2155,700
2001-10-26$4.25$4.25116,700
2001-10-25$4.06$4.06233,300
2001-10-24$4.65$4.65302,200
2001-10-23$4.85$4.85998,500
2001-10-22$5.59$5.59610,400
2001-10-19$4.55$4.55124,000
2001-10-18$3.93$3.9399,000
2001-10-17$3.97$3.97188,700
2001-10-16$4.18$4.18182,900
2001-10-15$3.95$3.95147,100
2001-10-12$4.05$4.05142,000
2001-10-11$3.87$3.87291,100
2001-10-10$3.20$3.20275,800
2001-10-09$2.99$2.99160,400
2001-10-08$3.03$3.03202,100
2001-10-05$3.01$3.01480,600
2001-10-04$3.20$3.20526,300
2001-10-03$3.39$3.39582,400
2001-10-02$3.35$3.35695,600
2001-10-01$2.87$2.87884,500
2001-09-28$2.18$2.181,098,100
2001-09-27$2.53$2.53257,600
2001-09-26$2.70$2.70576,200
2001-09-25$3.07$3.07497,200
2001-09-24$3.40$3.40563,000
2001-09-21$3.70$3.70402,600
2001-09-20$3.85$3.85758,900
2001-09-19$4.48$4.48892,600
2001-09-18$5.05$5.05606,200
2001-09-17$5.55$5.55490,300
2001-09-10$6.50$6.5082,000
2001-09-07$6.65$6.65363,400
2001-09-06$6.63$6.63151,400
2001-09-05$7.00$7.00189,400
2001-09-04$6.87$6.87143,100
2001-08-31$6.60$6.6069,700
2001-08-30$6.60$6.60770,700
2001-08-29$6.68$6.68292,700
2001-08-28$6.81$6.81160,100
2001-08-27$7.00$7.0057,000
2001-08-24$6.96$6.96257,100
2001-08-23$6.91$6.9168,900
2001-08-22$7.10$7.10583,300
2001-08-21$6.95$6.9541,000
2001-08-20$7.05$7.05140,600
2001-08-17$7.37$7.37216,100
2001-08-16$7.50$7.50289,200
2001-08-15$7.70$7.70271,200
2001-08-14$7.89$7.89272,600
2001-08-13$7.65$7.6590,700
2001-08-10$7.55$7.55192,700
2001-08-09$7.56$7.5654,900
2001-08-08$7.45$7.45143,900
2001-08-07$7.80$7.80108,700
2001-08-06$7.69$7.69129,600
2001-08-03$7.50$7.50112,300
2001-08-02$7.45$7.45102,800
2001-08-01$7.50$7.50300,500
2001-07-31$7.46$7.46188,200
2001-07-30$7.34$7.34383,000
2001-07-27$7.60$7.60205,800
2001-07-26$7.19$7.191,335,600
2001-07-25$7.02$7.02985,100
2001-07-24$7.39$7.3956,100
2001-07-23$7.40$7.40112,600
2001-07-20$7.38$7.38113,500
2001-07-19$7.59$7.59268,300
2001-07-18$7.65$7.65172,000
2001-07-17$7.67$7.67255,800
2001-07-16$7.60$7.60259,400
2001-07-13$7.50$7.50632,300
2001-07-12$7.62$7.62210,000
2001-07-11$7.80$7.80126,500
2001-07-10$7.90$7.90127,500
2001-07-09$7.78$7.78399,000
2001-07-06$7.89$7.89287,900
2001-07-05$7.95$7.9534,000
2001-07-03$7.99$7.99258,200
2001-07-02$8.00$8.00219,000
2001-06-29$7.84$7.84990,300
2001-06-28$8.00$8.00159,200
2001-06-27$7.96$7.96131,600
2001-06-26$8.49$8.49170,200
2001-06-25$7.70$7.70165,900
2001-06-22$7.82$7.82665,500
2001-06-21$8.26$8.26177,600
2001-06-20$8.43$8.43285,800
2001-06-19$8.53$8.53323,600
2001-06-18$9.02$9.02112,000
2001-06-15$8.90$8.9078,200
2001-06-14$8.99$8.9987,400
2001-06-13$9.00$9.00470,800
2001-06-12$8.88$8.8886,400
2001-06-11$9.26$9.26818,800
2001-06-08$9.30$9.3048,500
2001-06-07$9.55$9.55320,000
2001-06-06$9.90$9.90123,400
2001-06-05$10.25$10.2590,600
2001-06-04$10.15$10.15175,600
2001-06-01$10.05$10.0550,700
2001-05-31$10.00$10.00474,000
2001-05-30$9.25$9.25362,300
2001-05-29$9.95$9.95199,600
2001-05-25$10.15$10.15315,400
2001-05-24$11.56$11.56128,900
2001-05-23$12.01$12.01171,900
2001-05-22$12.07$12.07298,400
2001-05-21$11.95$11.95280,900
2001-05-18$11.05$11.05116,300
2001-05-17$10.96$10.96936,200
2001-05-16$10.13$10.13439,800
2001-05-15$9.80$9.80556,100
2001-05-14$9.20$9.20251,100
2001-05-11$8.80$8.80185,800
2001-05-10$8.89$8.89399,000
2001-05-09$9.15$9.15376,300
2001-05-08$9.50$9.501,355,500
2001-05-07$8.80$8.80243,000
2001-05-04$8.60$8.60163,700
2001-05-03$8.70$8.70163,200
2001-05-02$8.75$8.75195,500
2001-05-01$8.50$8.50344,800
2001-04-30$8.75$8.75325,800
2001-04-27$8.75$8.75260,500
2001-04-26$8.80$8.80395,900
2001-04-25$8.00$8.00220,400
2001-04-24$8.33$8.33180,800
2001-04-23$6.65$6.6597,100
2001-04-20$6.15$6.1573,300
2001-04-19$7.15$7.1594,100
2001-04-18$7.28$7.28157,400
2001-04-17$5.80$5.8032,900
2001-04-16$5.45$5.4593,400
2001-04-12$6.00$6.00144,100
2001-04-11$6.60$6.6095,300
2001-04-10$7.15$7.15115,800
2001-04-09$6.55$6.5549,100
2001-04-06$6.63$6.6344,800
2001-04-05$6.56$6.5675,800
2001-04-04$6.56$6.5655,600
2001-04-03$6.69$6.69129,700
2001-04-02$7.25$7.25513,800
2001-03-30$7.25$7.25527,400
2001-03-29$7.25$7.25246,400
2001-03-28$7.56$7.56187,200
2001-03-27$7.41$7.4135,700
2001-03-26$7.50$7.50104,300
2001-03-23$7.81$7.8158,900
2001-03-22$7.75$7.75129,200
2001-03-21$8.19$8.19139,400
2001-03-20$8.19$8.19138,100
2001-03-19$8.88$8.88161,300
2001-03-16$8.25$8.25580,300
2001-03-15$9.44$9.44224,600
2001-03-14$10.25$10.25215,200
2001-03-13$9.50$9.50128,100
2001-03-12$8.50$8.50276,100
2001-03-09$8.13$8.13165,700
2001-03-08$8.47$8.47242,900
2001-03-07$7.81$7.81321,800
2001-03-06$7.50$7.501,922,300
2001-03-05$6.69$6.69697,900
2001-03-02$7.50$7.50277,800
2001-03-01$7.56$7.56464,200
2001-02-28$7.50$7.50503,600
2001-02-27$7.56$7.56865,200
2001-02-26$9.00$9.00839,200
2001-02-23$11.06$11.06217,800
2001-02-22$12.11$12.11712,500
2001-02-21$12.31$12.31219,000
2001-02-20$12.75$12.75411,200
2001-02-16$13.06$13.06161,500
2001-02-15$12.81$12.811,568,600
2001-02-14$11.63$11.63136,900
2001-02-13$11.44$11.44304,300
2001-02-12$11.06$11.06552,000
2001-02-09$12.00$12.001,100,800
2001-02-08$13.06$13.06712,000
2001-02-07$13.06$13.061,361,000
2001-02-06$14.00$14.00737,900
2001-02-05$14.13$14.13489,400
2001-02-02$14.13$14.13775,000
2001-02-01$14.19$14.19669,100
2001-01-31$13.50$13.501,212,700
2001-01-30$16.88$16.88812,300