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 — 2012

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2012-12-31$3.22$3.2276,100——
2012-12-28$3.12$3.1241,100——
2012-12-27$3.13$3.1352,100——
2012-12-26$3.28$3.2830,800——
2012-12-24$3.29$3.2931,600——
2012-12-21$3.28$3.28106,100——
2012-12-20$3.25$3.2531,500——
2012-12-19$3.28$3.2867,000——
2012-12-18$3.13$3.1385,100——
2012-12-17$3.04$3.0441,000——
2012-12-14$3.00$3.0035,700——
2012-12-13$3.00$3.0033,300——
2012-12-12$3.10$3.1052,200——
2012-12-11$2.96$2.9625,300——
2012-12-10$2.95$2.957,100——
2012-12-07$2.90$2.9050,100——
2012-12-06$2.96$2.9646,600——
2012-12-05$2.99$2.9979,500——
2012-12-04$3.08$3.0828,300——
2012-12-03$3.16$3.1621,400——
2012-11-30$3.22$3.2274,800——
2012-11-29$3.14$3.1459,200——
2012-11-28$3.07$3.0730,900——
2012-11-27$3.09$3.0938,500——
2012-11-26$2.97$2.9730,300——
2012-11-23$2.97$2.9716,900——
2012-11-21$2.99$2.9913,800——
2012-11-20$2.91$2.9120,800——
2012-11-19$2.95$2.9521,200——
2012-11-16$2.94$2.9432,700——
2012-11-15$3.00$3.0017,200——
2012-11-14$3.03$3.0322,100——
2012-11-13$3.01$3.0132,400——
2012-11-12$3.04$3.0412,200——
2012-11-09$3.06$3.0650,000——
2012-11-08$3.12$3.1224,700——
2012-11-07$3.19$3.1927,800——
2012-11-06$3.13$3.1313,600——
2012-11-05$3.15$3.1512,200——
2012-11-02$3.17$3.1731,400——
2012-11-01$3.17$3.1717,300——
2012-10-31$3.20$3.2059,300——
2012-10-26$3.37$3.3742,400——
2012-10-25$3.37$3.379,100——
2012-10-24$3.36$3.3619,100——
2012-10-23$3.32$3.328,500——
2012-10-22$3.36$3.3617,300——
2012-10-19$3.36$3.36100,100——
2012-10-18$3.31$3.3128,700——
2012-10-17$3.30$3.3015,400——
2012-10-16$3.31$3.3138,800——
2012-10-15$3.22$3.2222,000——
2012-10-12$3.15$3.1533,200——
2012-10-11$3.12$3.1217,000——
2012-10-10$3.12$3.1230,600——
2012-10-09$3.12$3.1278,100——
2012-10-08$3.22$3.2227,600——
2012-10-05$3.26$3.2659,400——
2012-10-04$3.28$3.2825,900——
2012-10-03$3.28$3.2820,200——
2012-10-02$3.32$3.3283,400——
2012-10-01$3.23$3.23112,300——
2012-09-28$3.31$3.3180,000——
2012-09-27$3.38$3.38155,400——
2012-09-26$3.53$3.5325,900——
2012-09-25$3.52$3.5258,400——
2012-09-24$3.56$3.5648,800——
2012-09-21$3.57$3.57121,800——
2012-09-20$3.58$3.5854,700——
2012-09-19$3.63$3.6361,700——
2012-09-18$3.72$3.7268,700——
2012-09-17$3.76$3.7669,300——
2012-09-14$3.82$3.82114,000——
2012-09-13$3.93$3.9366,400——
2012-09-12$3.91$3.9140,800——
2012-09-11$3.93$3.9316,800——
2012-09-10$3.91$3.9123,300——
2012-09-07$3.91$3.9122,500——
2012-09-06$3.92$3.9220,900——
2012-09-05$3.94$3.9422,100——
2012-09-04$3.99$3.9953,100——
2012-08-31$3.95$3.9553,900——
2012-08-30$3.92$3.925,000——
2012-08-29$3.94$3.948,900——
2012-08-28$3.91$3.9120,900——
2012-08-27$3.97$3.9716,200——
2012-08-24$3.98$3.9831,000——
2012-08-23$3.99$3.9918,100——
2012-08-22$3.88$3.8848,600——
2012-08-21$3.98$3.9872,700——
2012-08-20$3.95$3.9578,900——
2012-08-17$3.99$3.9914,700——
2012-08-16$3.93$3.9344,000——
2012-08-15$3.90$3.9027,800——
2012-08-14$3.92$3.9217,700——
2012-08-13$3.88$3.8822,200——
2012-08-10$3.89$3.89130,200——
2012-08-09$4.11$4.11149,600——
2012-08-08$3.96$3.9680,800——
2012-08-07$4.08$4.0863,500——
2012-08-06$4.16$4.1663,200——
2012-08-03$4.38$4.3824,200——
2012-08-02$4.31$4.3191,300——
2012-08-01$4.16$4.1625,300——
2012-07-31$4.25$4.2520,000——
2012-07-30$4.21$4.2129,600——
2012-07-27$4.41$4.4144,800——
2012-07-26$4.30$4.3045,400——
2012-07-25$4.30$4.3050,600——
2012-07-24$4.30$4.3051,800——
2012-07-23$4.11$4.1140,600——
2012-07-20$4.22$4.2224,500——
2012-07-19$4.18$4.1885,800——
2012-07-18$4.11$4.1127,300——
2012-07-17$4.04$4.0465,800——
2012-07-16$4.15$4.1551,900——
2012-07-13$4.14$4.1434,900——
2012-07-12$4.15$4.1593,700——
2012-07-11$4.18$4.1886,700——
2012-07-10$4.12$4.1279,700——
2012-07-09$4.17$4.1780,000——
2012-07-06$4.14$4.1498,800——
2012-07-05$4.27$4.27166,500——
2012-07-03$3.96$3.96180,700——
2012-07-02$3.79$3.79279,900——
2012-06-29$3.76$3.76207,700——
2012-06-28$3.86$3.86313,600——
2012-06-27$3.97$3.97246,200——
2012-06-26$4.16$4.1672,900——
2012-06-25$4.16$4.16117,900——
2012-06-22$4.28$4.281,358,900——
2012-06-21$4.22$4.22167,000——
2012-06-20$4.35$4.35104,900——
2012-06-19$4.19$4.19178,100——
2012-06-18$4.22$4.22185,800——
2012-06-15$4.38$4.38180,900——
2012-06-14$4.61$4.6187,200——
2012-06-13$4.54$4.54102,300——
2012-06-12$4.54$4.54128,700——
2012-06-11$4.38$4.38122,300——
2012-06-08$4.58$4.58106,000——
2012-06-07$4.50$4.50113,900——
2012-06-06$4.89$4.89123,900——
2012-06-05$4.54$4.54124,000——
2012-06-04$4.51$4.5156,900——
2012-06-01$4.71$4.71170,000——
2012-05-31$4.52$4.52128,100——
2012-05-30$4.40$4.4076,200——
2012-05-29$4.36$4.36109,200——
2012-05-25$4.35$4.35238,900——
2012-05-24$4.32$4.32116,600——
2012-05-23$4.41$4.41215,000——
2012-05-22$4.24$4.24147,000——
2012-05-21$4.16$4.16139,600——
2012-05-18$4.11$4.11365,300——
2012-05-17$4.46$4.46156,500——
2012-05-16$4.60$4.60168,200——
2012-05-15$4.79$4.79307,000——
2012-05-14$5.11$5.11276,000——
2012-05-11$5.40$5.40680,200——
2012-05-10$6.80$6.80136,000——
2012-05-09$6.96$6.96108,000——
2012-05-08$7.33$7.3393,000——
2012-05-07$7.08$7.0877,000——
2012-05-04$6.94$6.9487,300——
2012-05-03$7.01$7.0183,000——
2012-05-02$7.17$7.17132,800——
2012-05-01$7.39$7.39178,000——
2012-04-30$6.98$6.9833,000——
2012-04-27$7.28$7.2893,500——
2012-04-26$7.19$7.1999,300——
2012-04-25$6.96$6.9646,500——
2012-04-24$6.93$6.9369,300——
2012-04-23$7.05$7.0565,700——
2012-04-20$7.04$7.0485,500——
2012-04-19$7.06$7.0638,600——
2012-04-18$7.10$7.1086,800——
2012-04-17$7.13$7.13109,500——
2012-04-16$7.02$7.0284,600——
2012-04-13$7.11$7.1179,200——
2012-04-12$7.37$7.3794,600——
2012-04-11$7.29$7.2967,200——
2012-04-10$7.23$7.2377,600——
2012-04-09$7.50$7.5089,700——
2012-04-05$7.67$7.67110,300——
2012-04-04$7.92$7.92132,700——
2012-04-03$8.21$8.21159,000——
2012-04-02$8.38$8.3855,500——
2012-03-30$8.33$8.3358,900——
2012-03-29$8.55$8.5588,800——
2012-03-28$8.80$8.80153,600——
2012-03-27$8.31$8.3167,700——
2012-03-26$8.30$8.3078,800——
2012-03-23$8.32$8.3277,600——
2012-03-22$8.62$8.6256,900——
2012-03-21$8.52$8.5259,200——
2012-03-20$8.70$8.7060,800——
2012-03-19$8.83$8.83116,000——
2012-03-16$8.48$8.4890,200——
2012-03-15$8.47$8.4762,100——
2012-03-14$8.42$8.4283,800——
2012-03-13$8.65$8.6570,100——
2012-03-12$8.25$8.2568,100——
2012-03-09$8.25$8.2578,200——
2012-03-08$8.15$8.1552,100——
2012-03-07$7.99$7.99118,300——
2012-03-06$8.23$8.23122,900——
2012-03-05$8.17$8.17230,800——
2012-03-02$8.90$8.90218,000——
2012-03-01$8.85$8.85120,800——
2012-02-29$8.76$8.76131,600——
2012-02-28$9.00$9.00119,400——
2012-02-27$8.70$8.70163,100——
2012-02-24$8.67$8.6785,400——
2012-02-23$8.97$8.97114,500——
2012-02-22$9.11$9.11119,500——
2012-02-21$9.31$9.31143,100——
2012-02-17$9.45$9.45260,800——
2012-02-16$9.02$9.02141,300——
2012-02-15$8.58$8.58164,000——
2012-02-14$9.00$9.00151,500——
2012-02-13$8.96$8.96376,700——
2012-02-10$9.28$9.28635,300——
2012-02-09$11.26$11.26306,300——
2012-02-08$11.18$11.1895,500——
2012-02-07$11.03$11.03120,100——
2012-02-06$11.23$11.23106,500——
2012-02-03$11.48$11.48179,400——
2012-02-02$10.80$10.8092,100——
2012-02-01$10.50$10.50105,700——
2012-01-31$10.19$10.19102,400——
2012-01-30$9.97$9.97140,900——
2012-01-27$10.29$10.2945,900——
2012-01-26$10.26$10.26110,000——
2012-01-25$10.37$10.37143,800——
2012-01-24$10.66$10.66166,600——
2012-01-23$10.44$10.44179,600——
2012-01-20$10.10$10.1065,300——
2012-01-19$10.24$10.24225,300——
2012-01-18$10.35$10.35172,400——
2012-01-17$10.17$10.17110,300——
2012-01-13$10.11$10.11138,200——
2012-01-12$10.15$10.15126,700——
2012-01-11$9.77$9.77372,800——
2012-01-10$8.76$8.76183,800——
2012-01-09$8.73$8.73140,700——
2012-01-06$8.82$8.82127,100——
2012-01-05$8.88$8.88191,900——
2012-01-04$8.95$8.95173,200——
2012-01-03$8.66$8.66170,500——