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 — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$13.97$13.97784,000
2006-12-28$13.99$13.99603,300
2006-12-27$14.11$14.11495,000
2006-12-26$14.09$14.09523,100
2006-12-22$13.97$13.97599,100
2006-12-21$13.96$13.96843,000
2006-12-20$13.51$13.51389,200
2006-12-19$12.96$12.96816,900
2006-12-18$13.13$13.13693,200
2006-12-15$13.52$13.52828,000
2006-12-14$13.61$13.61643,400
2006-12-13$13.50$13.50641,200
2006-12-12$13.71$13.711,792,800
2006-12-11$14.02$14.02268,500
2006-12-08$14.16$14.16369,000
2006-12-07$14.05$14.05251,200
2006-12-06$14.07$14.07561,100
2006-12-05$14.22$14.22890,400
2006-12-04$13.51$13.511,046,300
2006-12-01$13.08$13.08451,200
2006-11-30$13.12$13.12680,300
2006-11-29$13.25$13.25500,300
2006-11-28$13.08$13.08652,300
2006-11-27$13.00$13.00734,000
2006-11-24$13.22$13.22138,700
2006-11-22$13.35$13.35837,300
2006-11-21$13.15$13.15599,600
2006-11-20$13.01$13.01443,000
2006-11-17$12.95$12.95420,400
2006-11-16$12.95$12.95391,600
2006-11-15$12.96$12.96679,500
2006-11-14$12.85$12.85572,200
2006-11-13$12.67$12.67307,900
2006-11-10$12.83$12.83324,100
2006-11-09$12.76$12.76593,000
2006-11-08$13.17$13.17731,300
2006-11-07$13.22$13.22651,700
2006-11-06$12.99$12.99694,400
2006-11-03$13.00$13.00785,200
2006-11-02$12.99$12.991,051,000
2006-11-01$12.92$12.922,104,600
2006-10-31$13.86$13.862,549,900
2006-10-30$14.53$14.531,077,600
2006-10-27$14.50$14.50954,800
2006-10-26$14.38$14.381,568,000
2006-10-25$14.22$14.221,474,600
2006-10-24$14.13$14.13874,100
2006-10-23$14.12$14.12766,600
2006-10-20$14.12$14.12707,900
2006-10-19$14.13$14.131,452,400
2006-10-18$14.04$14.041,612,600
2006-10-17$14.72$14.72851,500
2006-10-16$14.96$14.961,269,100
2006-10-13$15.03$15.032,957,200
2006-10-12$14.66$14.661,708,800
2006-10-11$13.88$13.881,194,700
2006-10-10$13.74$13.741,493,500
2006-10-09$13.38$13.38995,600
2006-10-06$13.61$13.613,639,700
2006-10-05$12.94$12.942,840,100
2006-10-04$11.74$11.742,593,400
2006-10-03$11.38$11.382,116,300
2006-10-02$11.31$11.312,201,300
2006-09-29$11.38$11.385,198,500
2006-09-28$11.56$11.5624,482,300
2006-09-27$7.80$7.801,389,200
2006-09-26$7.65$7.651,450,600
2006-09-25$6.98$6.98306,400
2006-09-22$6.71$6.71691,300
2006-09-21$6.57$6.5796,000
2006-09-20$6.64$6.64139,900
2006-09-19$6.56$6.56165,600
2006-09-18$6.71$6.71174,800
2006-09-15$6.76$6.76576,900
2006-09-14$6.76$6.76172,800
2006-09-13$6.70$6.70160,800
2006-09-12$6.45$6.45137,400
2006-09-11$6.25$6.25126,800
2006-09-08$6.15$6.15180,200
2006-09-07$6.23$6.23139,200
2006-09-06$6.38$6.38200,900
2006-09-05$6.39$6.39184,400
2006-09-01$6.11$6.11277,500
2006-08-31$6.25$6.25290,300
2006-08-30$6.06$6.06719,600
2006-08-29$6.14$6.14329,100
2006-08-28$6.01$6.011,061,900
2006-08-25$5.69$5.69344,000
2006-08-24$5.66$5.66390,000
2006-08-23$5.81$5.81236,900
2006-08-22$5.89$5.89159,600
2006-08-21$5.88$5.88225,800
2006-08-18$5.94$5.94382,200
2006-08-17$5.95$5.95476,300
2006-08-16$5.89$5.89171,200
2006-08-15$5.92$5.92425,800
2006-08-14$5.84$5.84217,300
2006-08-11$5.82$5.82257,800
2006-08-10$5.97$5.97479,900
2006-08-09$5.96$5.96310,400
2006-08-08$6.04$6.04453,100
2006-08-07$6.11$6.11432,300
2006-08-04$6.34$6.34479,900
2006-08-03$6.52$6.52669,200
2006-08-02$6.61$6.61464,200
2006-08-01$6.80$6.80591,700
2006-07-31$6.76$6.76307,000
2006-07-28$6.76$6.76441,800
2006-07-27$6.63$6.63464,800
2006-07-26$6.89$6.89603,900
2006-07-25$6.74$6.74295,300
2006-07-24$6.67$6.67294,700
2006-07-21$6.51$6.51331,800
2006-07-20$6.62$6.62260,700
2006-07-19$6.84$6.84249,700
2006-07-18$6.60$6.60253,700
2006-07-17$6.55$6.55281,300
2006-07-14$6.67$6.67369,800
2006-07-13$6.66$6.66233,800
2006-07-12$6.85$6.85327,900
2006-07-11$6.99$6.99392,300
2006-07-10$6.98$6.98768,600
2006-07-07$7.20$7.20319,700
2006-07-06$7.35$7.35295,700
2006-07-05$7.50$7.50262,700
2006-07-03$7.59$7.59337,000
2006-06-30$7.39$7.39736,300
2006-06-29$7.24$7.24406,800
2006-06-28$7.05$7.05229,900
2006-06-27$7.16$7.16635,400
2006-06-26$7.49$7.49241,300
2006-06-23$7.50$7.50136,400
2006-06-22$7.44$7.44260,000
2006-06-21$7.55$7.55296,400
2006-06-20$7.62$7.62304,500
2006-06-19$7.60$7.60289,400
2006-06-16$7.59$7.591,089,900
2006-06-15$7.57$7.57342,800
2006-06-14$7.39$7.39760,900
2006-06-13$7.64$7.64367,000
2006-06-12$7.45$7.45466,500
2006-06-09$7.66$7.66526,500
2006-06-08$7.93$7.93357,000
2006-06-07$7.85$7.85357,200
2006-06-06$7.69$7.69442,200
2006-06-05$7.57$7.57476,400
2006-06-02$7.79$7.79633,300
2006-06-01$7.45$7.45184,400
2006-05-31$7.39$7.39599,500
2006-05-30$7.37$7.37332,700
2006-05-26$7.62$7.62271,100
2006-05-25$7.57$7.57284,500
2006-05-24$7.35$7.35847,700
2006-05-23$7.19$7.19386,400
2006-05-22$7.53$7.53352,600
2006-05-19$7.49$7.49364,200
2006-05-18$7.66$7.66279,800
2006-05-17$7.76$7.76510,400
2006-05-16$7.81$7.81243,100
2006-05-15$7.77$7.77569,400
2006-05-12$7.75$7.75902,500
2006-05-11$7.98$7.98351,600
2006-05-10$8.12$8.12307,400
2006-05-09$8.30$8.30644,500
2006-05-08$8.51$8.51225,600
2006-05-05$8.60$8.60311,000
2006-05-04$8.39$8.39234,500
2006-05-03$8.36$8.36670,400
2006-05-02$8.77$8.77753,700
2006-05-01$8.89$8.89662,000
2006-04-28$8.79$8.79543,400
2006-04-27$8.56$8.56874,400
2006-04-26$8.54$8.541,797,900
2006-04-25$9.22$9.22647,800
2006-04-24$9.16$9.16723,500
2006-04-21$9.15$9.15485,200
2006-04-20$9.46$9.46284,200
2006-04-19$9.52$9.52682,300
2006-04-18$9.43$9.43852,900
2006-04-17$9.01$9.01433,900
2006-04-13$9.05$9.05357,000
2006-04-12$9.01$9.01535,300
2006-04-11$8.74$8.74433,200
2006-04-10$8.92$8.92371,800
2006-04-07$8.91$8.91306,900
2006-04-06$8.91$8.91289,300
2006-04-05$8.98$8.98407,900
2006-04-04$9.04$9.04652,700
2006-04-03$9.03$9.03570,300
2006-03-31$9.17$9.17706,800
2006-03-30$9.33$9.33669,500
2006-03-29$9.21$9.21353,600
2006-03-28$9.02$9.02447,900
2006-03-27$9.00$9.00518,300
2006-03-24$8.97$8.97440,200
2006-03-23$8.67$8.67456,200
2006-03-22$8.76$8.76681,200
2006-03-21$8.77$8.77523,300
2006-03-20$9.23$9.231,228,900
2006-03-17$9.05$9.051,383,000
2006-03-16$8.45$8.45239,200
2006-03-15$8.42$8.42303,000
2006-03-14$8.26$8.26254,500
2006-03-13$8.40$8.40466,300
2006-03-10$8.21$8.21181,300
2006-03-09$8.01$8.01262,700
2006-03-08$8.07$8.07189,000
2006-03-07$8.13$8.13329,800
2006-03-06$8.30$8.30341,600
2006-03-03$8.43$8.43545,100
2006-03-02$8.58$8.58587,200
2006-03-01$8.46$8.46699,400
2006-02-28$8.16$8.16357,300
2006-02-27$8.25$8.25952,000
2006-02-24$8.38$8.38291,500
2006-02-23$8.34$8.34469,500
2006-02-22$8.21$8.21456,400
2006-02-21$8.00$8.00802,800
2006-02-17$8.41$8.41395,900
2006-02-16$8.31$8.31419,600
2006-02-15$8.33$8.33369,300
2006-02-14$8.17$8.17457,500
2006-02-13$8.12$8.12496,400
2006-02-10$8.25$8.25635,500
2006-02-09$8.41$8.41957,400
2006-02-08$8.01$8.01296,700
2006-02-07$7.90$7.90644,900
2006-02-06$8.08$8.08776,400
2006-02-03$7.91$7.911,066,800
2006-02-02$7.87$7.87577,900
2006-02-01$7.88$7.881,931,900
2006-01-31$8.18$8.18838,600
2006-01-30$8.21$8.21979,400
2006-01-27$8.40$8.40747,800
2006-01-26$8.54$8.541,514,700
2006-01-25$8.05$8.054,254,200
2006-01-24$7.53$7.53901,900
2006-01-23$7.48$7.48557,800
2006-01-20$7.59$7.59399,300
2006-01-19$7.61$7.611,054,500
2006-01-18$7.81$7.811,712,100
2006-01-17$8.37$8.372,043,300
2006-01-13$7.46$7.461,963,600
2006-01-12$6.85$6.851,346,700
2006-01-11$6.25$6.25350,900
2006-01-10$6.33$6.33375,400
2006-01-09$6.34$6.34261,700
2006-01-06$6.19$6.19593,200
2006-01-05$6.21$6.21364,700
2006-01-04$6.08$6.08741,500
2006-01-03$6.28$6.281,399,000