NASDAQ:ASYS | Historical Stock Price | AMTECH SYSTEMS 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
1983-08-09 to 2026-09-04
Data captured

Stock Price Chart

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

$0.95$1.88$3.70$7.31$14.44$28.521983-08-092026-08-27

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

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Historical Stock Price — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$25.15$25.15153,200
2010-12-30$25.58$25.58180,300
2010-12-29$26.27$26.27229,000
2010-12-28$26.76$26.76161,800
2010-12-27$26.44$26.44138,300
2010-12-23$25.76$25.76137,800
2010-12-22$26.08$26.08146,600
2010-12-21$25.51$25.51345,900
2010-12-20$26.13$26.13405,300
2010-12-17$24.54$24.54207,300
2010-12-16$24.40$24.40230,500
2010-12-15$23.01$23.01281,900
2010-12-14$23.15$23.15450,700
2010-12-13$24.96$24.96319,400
2010-12-10$25.04$25.04361,800
2010-12-09$24.61$24.61313,400
2010-12-08$24.01$24.01222,800
2010-12-07$23.88$23.88653,600
2010-12-06$24.99$24.99604,800
2010-12-03$23.18$23.18294,500
2010-12-02$23.26$23.26447,700
2010-12-01$21.55$21.55379,500
2010-11-30$20.70$20.70452,000
2010-11-29$20.97$20.97874,900
2010-11-26$19.94$19.94203,000
2010-11-24$18.84$18.84240,900
2010-11-23$18.45$18.45299,900
2010-11-22$17.97$17.97283,500
2010-11-19$17.50$17.50270,600
2010-11-18$17.00$17.00601,600
2010-11-17$15.76$15.761,276,300
2010-11-16$18.55$18.55316,700
2010-11-15$18.49$18.491,153,600
2010-11-12$17.28$17.28159,000
2010-11-11$17.12$17.12186,400
2010-11-10$17.11$17.11179,400
2010-11-09$17.44$17.44199,700
2010-11-08$18.47$18.4797,800
2010-11-05$18.27$18.27118,100
2010-11-04$18.76$18.76369,600
2010-11-03$17.20$17.2066,300
2010-11-02$17.13$17.1384,000
2010-11-01$17.27$17.27208,400
2010-10-29$16.74$16.74160,800
2010-10-28$16.93$16.9397,300
2010-10-27$17.50$17.5089,900
2010-10-26$17.14$17.1481,800
2010-10-25$17.59$17.59139,600
2010-10-22$17.35$17.35195,000
2010-10-21$16.62$16.62310,600
2010-10-20$17.37$17.37337,100
2010-10-19$18.11$18.11258,600
2010-10-18$19.66$19.66391,600
2010-10-15$19.45$19.45457,700
2010-10-14$18.51$18.51381,200
2010-10-13$17.66$17.66177,900
2010-10-12$18.09$18.09285,500
2010-10-11$17.42$17.42342,700
2010-10-08$18.05$18.05136,000
2010-10-07$18.31$18.31182,600
2010-10-06$18.39$18.39203,200
2010-10-05$18.90$18.90618,500
2010-10-04$17.31$17.31165,500
2010-10-01$17.87$17.87130,100
2010-09-30$17.96$17.96145,200
2010-09-29$18.15$18.15113,700
2010-09-28$18.14$18.14159,600
2010-09-27$18.25$18.25269,200
2010-09-24$17.68$17.68278,700
2010-09-23$17.20$17.20758,200
2010-09-22$16.01$16.01184,900
2010-09-21$15.81$15.81358,000
2010-09-20$15.45$15.45156,800
2010-09-17$15.22$15.22252,900
2010-09-16$15.96$15.96194,900
2010-09-15$15.91$15.91167,000
2010-09-14$15.71$15.71213,500
2010-09-13$15.68$15.68223,400
2010-09-10$14.93$14.93340,800
2010-09-09$15.49$15.49276,400
2010-09-08$15.73$15.73162,000
2010-09-07$15.95$15.95543,300
2010-09-03$15.92$15.92408,300
2010-09-02$15.78$15.78619,400
2010-09-01$14.27$14.27296,800
2010-08-31$13.62$13.6290,800
2010-08-30$13.14$13.1474,900
2010-08-27$13.69$13.69107,800
2010-08-26$12.77$12.77155,100
2010-08-25$13.65$13.65173,300
2010-08-24$14.11$14.11169,600
2010-08-23$14.30$14.30190,600
2010-08-20$14.31$14.31219,500
2010-08-19$14.03$14.03252,900
2010-08-18$13.34$13.34137,000
2010-08-17$13.25$13.25493,900
2010-08-16$12.60$12.60373,200
2010-08-13$11.92$11.92119,200
2010-08-12$11.85$11.85130,500
2010-08-11$11.67$11.67142,900
2010-08-10$12.22$12.22283,800
2010-08-09$12.06$12.06333,200
2010-08-06$10.64$10.64212,600
2010-08-05$10.73$10.73155,700
2010-08-04$10.52$10.52127,200
2010-08-03$10.18$10.1835,400
2010-08-02$10.14$10.14119,500
2010-07-30$10.08$10.0856,700
2010-07-29$10.11$10.1128,200
2010-07-28$10.10$10.10108,900
2010-07-27$10.30$10.3072,400
2010-07-26$10.29$10.2958,200
2010-07-23$10.32$10.3264,600
2010-07-22$10.33$10.3361,500
2010-07-21$9.92$9.92150,000
2010-07-20$9.84$9.8464,200
2010-07-19$9.35$9.3514,100
2010-07-16$9.27$9.2736,400
2010-07-15$9.30$9.3069,700
2010-07-14$9.50$9.50420,600
2010-07-13$8.61$8.6178,000
2010-07-12$8.59$8.5930,100
2010-07-09$8.69$8.6954,400
2010-07-08$8.65$8.6578,900
2010-07-07$8.67$8.6740,500
2010-07-06$8.60$8.6030,600
2010-07-02$8.59$8.5941,200
2010-07-01$8.71$8.7170,400
2010-06-30$8.35$8.3512,800
2010-06-29$8.27$8.2747,400
2010-06-28$8.70$8.7017,400
2010-06-25$8.76$8.7625,600
2010-06-24$8.82$8.8213,400
2010-06-23$8.86$8.8619,800
2010-06-22$8.92$8.9211,400
2010-06-21$9.00$9.0014,300
2010-06-18$9.07$9.079,900
2010-06-17$9.00$9.0054,300
2010-06-16$9.45$9.4519,200
2010-06-15$9.25$9.2530,100
2010-06-14$9.02$9.0221,900
2010-06-11$8.78$8.7818,800
2010-06-10$8.90$8.9018,700
2010-06-09$8.64$8.6442,500
2010-06-08$8.73$8.7323,400
2010-06-07$8.77$8.7742,700
2010-06-04$9.00$9.0066,200
2010-06-03$9.43$9.4356,200
2010-06-02$9.43$9.4355,300
2010-06-01$9.03$9.0350,600
2010-05-28$9.47$9.4713,600
2010-05-27$9.43$9.4368,100
2010-05-26$9.00$9.0070,500
2010-05-25$9.07$9.07159,000
2010-05-24$8.96$8.9622,800
2010-05-21$9.07$9.0739,900
2010-05-20$8.97$8.9775,900
2010-05-19$9.29$9.2941,300
2010-05-18$9.33$9.3317,800
2010-05-17$9.69$9.6930,400
2010-05-14$9.49$9.4926,500
2010-05-13$9.99$9.9976,200
2010-05-12$9.97$9.9765,900
2010-05-11$9.41$9.4131,100
2010-05-10$9.05$9.0521,300
2010-05-07$8.60$8.6037,800
2010-05-06$9.27$9.2752,900
2010-05-05$9.13$9.1346,700
2010-05-04$9.31$9.3126,900
2010-05-03$9.65$9.6513,200
2010-04-30$9.57$9.5741,200
2010-04-29$9.79$9.7916,500
2010-04-28$9.68$9.6848,000
2010-04-27$9.87$9.8723,900
2010-04-26$9.93$9.9331,700
2010-04-23$9.95$9.9527,900
2010-04-22$10.00$10.0032,100
2010-04-21$10.09$10.0935,500
2010-04-20$10.13$10.1351,700
2010-04-19$9.75$9.7580,400
2010-04-16$9.89$9.8993,300
2010-04-15$9.74$9.7453,500
2010-04-14$9.88$9.8843,500
2010-04-13$9.26$9.26171,400
2010-04-12$9.22$9.2228,700
2010-04-09$9.31$9.3195,300
2010-04-08$9.38$9.3810,000
2010-04-07$9.57$9.57103,000
2010-04-06$9.64$9.6421,600
2010-04-05$9.86$9.8663,500
2010-04-01$9.79$9.7939,700
2010-03-31$10.09$10.0954,100
2010-03-30$9.84$9.8457,700
2010-03-29$10.16$10.1687,500
2010-03-26$9.80$9.8045,100
2010-03-25$9.46$9.4628,300
2010-03-24$9.41$9.4115,400
2010-03-23$9.51$9.5143,800
2010-03-22$9.41$9.4135,100
2010-03-19$9.22$9.2251,500
2010-03-18$9.39$9.3947,300
2010-03-17$9.65$9.65103,100
2010-03-16$8.93$8.9341,100
2010-03-15$8.63$8.6359,500
2010-03-12$8.59$8.5953,400
2010-03-11$8.48$8.4879,300
2010-03-10$8.53$8.53112,600
2010-03-09$8.70$8.70135,500
2010-03-08$8.95$8.9523,300
2010-03-05$8.80$8.8035,500
2010-03-04$8.77$8.7724,100
2010-03-03$8.82$8.82103,100
2010-03-02$8.77$8.7748,500
2010-03-01$8.68$8.6838,900
2010-02-26$8.69$8.6944,300
2010-02-25$8.45$8.4564,200
2010-02-24$8.44$8.4456,100
2010-02-23$8.46$8.4687,200
2010-02-22$8.54$8.54120,000
2010-02-19$8.64$8.6497,400
2010-02-18$8.92$8.9274,300
2010-02-17$9.13$9.1393,000
2010-02-16$9.05$9.05113,800
2010-02-12$8.84$8.84150,500
2010-02-11$8.97$8.97259,400
2010-02-10$8.15$8.15847,600
2010-02-09$10.18$10.18129,600
2010-02-08$10.49$10.4977,300
2010-02-05$10.44$10.44198,600
2010-02-04$10.33$10.33127,300
2010-02-03$11.02$11.0281,000
2010-02-02$11.00$11.0083,100
2010-02-01$10.66$10.66100,100
2010-01-29$10.42$10.4275,700
2010-01-28$10.92$10.92195,100
2010-01-27$10.24$10.24134,900
2010-01-26$10.84$10.84104,100
2010-01-25$10.84$10.84170,200
2010-01-22$10.97$10.97381,600
2010-01-21$12.19$12.19196,700
2010-01-20$12.48$12.48411,300
2010-01-19$11.92$11.92461,400
2010-01-15$10.89$10.89421,800
2010-01-14$12.34$12.34184,300
2010-01-13$12.86$12.861,333,400
2010-01-12$10.53$10.5382,100
2010-01-11$10.90$10.9043,300
2010-01-08$11.11$11.1158,400
2010-01-07$11.00$11.0047,500
2010-01-06$10.98$10.98144,400
2010-01-05$11.02$11.02147,100
2010-01-04$11.03$11.03241,200