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 — 2003

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2003-12-31$16.51$16.51368,500
2003-12-30$16.94$16.94380,600
2003-12-29$16.80$16.80317,900
2003-12-26$16.70$16.7044,400
2003-12-24$16.61$16.6182,600
2003-12-23$16.80$16.80260,500
2003-12-22$16.91$16.91319,400
2003-12-19$17.09$17.09546,200
2003-12-18$17.18$17.18273,400
2003-12-17$16.34$16.34441,700
2003-12-16$16.77$16.77270,500
2003-12-15$16.74$16.74353,300
2003-12-12$16.87$16.87170,700
2003-12-11$16.85$16.85387,900
2003-12-10$15.88$15.88376,200
2003-12-09$16.40$16.40396,600
2003-12-08$16.63$16.63542,100
2003-12-05$16.68$16.68310,600
2003-12-04$17.23$17.23558,500
2003-12-03$17.61$17.61515,700
2003-12-02$18.56$18.56747,400
2003-12-01$18.61$18.61590,400
2003-11-28$17.94$17.94262,300
2003-11-26$17.32$17.32238,500
2003-11-25$17.23$17.23397,600
2003-11-24$17.25$17.25504,600
2003-11-21$16.14$16.14188,200
2003-11-20$16.06$16.06324,700
2003-11-19$16.16$16.16284,100
2003-11-18$15.66$15.66368,600
2003-11-17$15.89$15.89804,200
2003-11-14$16.88$16.88556,300
2003-11-13$16.87$16.871,344,100
2003-11-12$17.79$17.79449,000
2003-11-11$16.95$16.95638,800
2003-11-10$17.55$17.55416,300
2003-11-07$17.87$17.87654,100
2003-11-06$17.73$17.73716,600
2003-11-05$16.94$16.94740,200
2003-11-04$17.02$17.021,301,600
2003-11-03$16.93$16.931,788,500
2003-10-31$15.41$15.41324,400
2003-10-30$15.30$15.30828,400
2003-10-29$15.65$15.65699,000
2003-10-28$16.13$16.13373,300
2003-10-27$15.40$15.40485,300
2003-10-24$14.62$14.62415,400
2003-10-23$14.09$14.09641,700
2003-10-22$14.00$14.00226,300
2003-10-21$14.69$14.69303,300
2003-10-20$14.30$14.301,274,800
2003-10-17$15.21$15.21246,400
2003-10-16$15.75$15.75199,200
2003-10-15$15.46$15.46418,100
2003-10-14$16.12$16.12600,600
2003-10-13$15.48$15.48654,800
2003-10-10$15.60$15.60837,300
2003-10-09$15.38$15.382,508,000
2003-10-08$13.49$13.49381,700
2003-10-07$13.65$13.65258,500
2003-10-06$13.85$13.85153,700
2003-10-03$13.63$13.63317,200
2003-10-02$13.40$13.40231,300
2003-10-01$12.85$12.85210,400
2003-09-30$12.51$12.51208,900
2003-09-29$12.70$12.70285,100
2003-09-26$12.93$12.93390,700
2003-09-25$12.95$12.95304,600
2003-09-24$13.09$13.09366,400
2003-09-23$13.75$13.75133,500
2003-09-22$13.82$13.82226,400
2003-09-19$13.94$13.94257,100
2003-09-18$13.94$13.94272,600
2003-09-17$13.95$13.95271,200
2003-09-16$14.09$14.09442,000
2003-09-15$13.54$13.54111,700
2003-09-12$13.69$13.69131,200
2003-09-11$13.73$13.73428,200
2003-09-10$13.25$13.25367,200
2003-09-09$13.34$13.34360,500
2003-09-08$13.75$13.75272,000
2003-09-05$13.49$13.49439,300
2003-09-04$13.40$13.40674,200
2003-09-03$12.53$12.53841,400
2003-09-02$11.30$11.30338,000
2003-08-29$11.07$11.07467,200
2003-08-28$10.62$10.62335,800
2003-08-27$10.76$10.76460,200
2003-08-26$10.45$10.45780,800
2003-08-25$10.80$10.80338,400
2003-08-22$11.23$11.23180,200
2003-08-21$11.30$11.30189,400
2003-08-20$11.53$11.53139,500
2003-08-19$11.45$11.45206,400
2003-08-18$11.56$11.56308,600
2003-08-15$11.18$11.18266,100
2003-08-14$11.39$11.39380,100
2003-08-13$11.84$11.84319,400
2003-08-12$11.40$11.40136,100
2003-08-11$11.27$11.27194,400
2003-08-08$11.13$11.13307,500
2003-08-07$11.05$11.05130,100
2003-08-06$11.17$11.17526,500
2003-08-05$11.95$11.95228,800
2003-08-04$11.84$11.84390,800
2003-08-01$12.46$12.46240,300
2003-07-31$13.00$13.00881,400
2003-07-30$13.55$13.55752,700
2003-07-29$13.26$13.26454,900
2003-07-28$14.30$14.30674,700
2003-07-25$13.83$13.83951,800
2003-07-24$12.63$12.63356,800
2003-07-23$12.30$12.30285,700
2003-07-22$11.59$11.59348,700
2003-07-21$11.22$11.22335,000
2003-07-18$11.35$11.35912,700
2003-07-17$11.11$11.11833,500
2003-07-16$13.00$13.00587,400
2003-07-15$13.47$13.47231,700
2003-07-14$13.18$13.18305,600
2003-07-11$13.38$13.38221,000
2003-07-10$13.50$13.50292,300
2003-07-09$13.85$13.85534,800
2003-07-08$13.37$13.37595,000
2003-07-07$14.10$14.10576,500
2003-07-03$13.80$13.80282,300
2003-07-02$13.60$13.60526,600
2003-07-01$13.04$13.04348,300
2003-06-30$12.60$12.60746,800
2003-06-27$11.87$11.87593,400
2003-06-26$11.74$11.74422,300
2003-06-25$11.37$11.37204,800
2003-06-24$11.48$11.48264,200
2003-06-23$11.50$11.50316,600
2003-06-20$11.75$11.75154,900
2003-06-19$11.66$11.66333,200
2003-06-18$11.81$11.81348,200
2003-06-17$11.90$11.90284,700
2003-06-16$11.75$11.75521,200
2003-06-13$10.81$10.81114,300
2003-06-12$11.00$11.00210,300
2003-06-11$10.89$10.89281,600
2003-06-10$10.08$10.08327,000
2003-06-09$9.68$9.68378,300
2003-06-06$9.49$9.49645,400
2003-06-05$10.22$10.22516,700
2003-06-04$10.30$10.30512,000
2003-06-03$10.30$10.30467,000
2003-06-02$10.23$10.23760,600
2003-05-30$10.13$10.13927,400
2003-05-29$10.61$10.611,332,300
2003-05-28$9.65$9.651,020,500
2003-05-27$9.28$9.28505,700
2003-05-23$9.08$9.08195,200
2003-05-22$9.08$9.08326,400
2003-05-21$8.89$8.891,393,300
2003-05-20$7.89$7.89400,600
2003-05-19$7.98$7.98243,800
2003-05-16$8.43$8.43365,700
2003-05-15$8.84$8.84323,000
2003-05-14$8.66$8.66297,400
2003-05-13$8.72$8.72397,000
2003-05-12$8.70$8.70455,600
2003-05-09$8.01$8.01199,700
2003-05-08$7.78$7.78280,700
2003-05-07$7.79$7.79341,600
2003-05-06$8.16$8.16635,400
2003-05-05$8.16$8.16400,800
2003-05-02$7.85$7.85348,700
2003-05-01$7.88$7.88507,200
2003-04-30$7.52$7.52590,500
2003-04-29$7.10$7.10639,100
2003-04-28$6.46$6.46471,700
2003-04-25$6.12$6.12893,300
2003-04-24$5.75$5.75399,600
2003-04-23$6.15$6.15771,200
2003-04-22$6.20$6.20208,300
2003-04-21$6.21$6.21555,300
2003-04-17$6.84$6.84142,300
2003-04-16$6.67$6.67126,400
2003-04-15$6.85$6.85191,800
2003-04-14$6.76$6.76337,600
2003-04-11$6.66$6.66129,900
2003-04-10$6.71$6.71137,400
2003-04-09$6.83$6.83100,600
2003-04-08$6.60$6.60129,500
2003-04-07$6.62$6.62154,300
2003-04-04$6.55$6.55192,400
2003-04-03$6.64$6.64734,000
2003-04-02$6.66$6.66685,100
2003-04-01$6.00$6.00464,800
2003-03-31$6.05$6.05510,400
2003-03-28$6.13$6.13203,700
2003-03-27$6.09$6.09313,500
2003-03-26$6.08$6.08576,300
2003-03-25$5.57$5.57287,300
2003-03-24$5.27$5.2787,000
2003-03-21$5.45$5.45209,500
2003-03-20$5.39$5.39186,300
2003-03-19$5.32$5.32156,300
2003-03-18$5.48$5.48128,200
2003-03-17$5.32$5.32306,800
2003-03-14$5.20$5.20245,300
2003-03-13$5.01$5.01262,500
2003-03-12$4.84$4.84114,900
2003-03-11$4.80$4.8066,900
2003-03-10$4.71$4.71185,200
2003-03-07$4.69$4.69237,900
2003-03-06$4.51$4.5165,700
2003-03-05$4.44$4.44662,000
2003-03-04$4.65$4.65181,100
2003-03-03$4.77$4.7763,700
2003-02-28$4.71$4.71317,200
2003-02-27$4.78$4.78192,400
2003-02-26$4.65$4.65100,600
2003-02-25$4.49$4.49567,800
2003-02-24$4.20$4.20112,800
2003-02-21$4.40$4.40368,000
2003-02-20$4.62$4.62289,500
2003-02-19$4.05$4.05488,100
2003-02-18$4.00$4.00415,700
2003-02-14$3.93$3.93220,700
2003-02-13$3.60$3.60170,000
2003-02-12$3.56$3.56191,900
2003-02-11$3.59$3.59189,700
2003-02-10$3.65$3.65117,200
2003-02-07$3.65$3.65164,200
2003-02-06$3.70$3.70105,600
2003-02-05$3.43$3.4379,800
2003-02-04$3.20$3.2057,400
2003-02-03$3.30$3.30160,800
2003-01-31$3.30$3.3084,500
2003-01-30$3.13$3.13211,000
2003-01-29$3.14$3.1460,100
2003-01-28$3.19$3.1992,800
2003-01-27$2.93$2.93116,400
2003-01-24$3.01$3.0168,000
2003-01-23$3.23$3.2364,400
2003-01-22$3.22$3.2233,100
2003-01-21$3.20$3.2070,300
2003-01-17$3.25$3.2583,900
2003-01-16$3.29$3.29145,900
2003-01-15$3.19$3.1948,300
2003-01-14$3.30$3.3046,500
2003-01-13$3.25$3.25240,900
2003-01-10$3.22$3.22137,700
2003-01-09$3.07$3.07145,000
2003-01-08$3.01$3.0184,500
2003-01-07$3.03$3.03129,400
2003-01-06$2.85$2.8540,500
2003-01-03$2.63$2.63215,900
2003-01-02$2.73$2.73112,900