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.

View year

Historical Stock Price — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$4.20$4.20121,200
2023-12-28$4.27$4.27104,200
2023-12-27$4.20$4.20203,800
2023-12-26$4.15$4.15171,000
2023-12-22$4.12$4.12248,000
2023-12-21$4.23$4.23225,400
2023-12-20$4.01$4.01604,000
2023-12-19$3.69$3.69440,200
2023-12-18$3.95$3.95313,700
2023-12-15$3.93$3.93383,200
2023-12-14$4.10$4.102,020,800
2023-12-13$5.99$5.99613,000
2023-12-12$5.98$5.98128,800
2023-12-11$6.51$6.5128,300
2023-12-08$6.55$6.5543,000
2023-12-07$6.76$6.7658,600
2023-12-06$6.72$6.7251,700
2023-12-05$7.30$7.3015,900
2023-12-04$7.50$7.5013,100
2023-12-01$7.73$7.7327,000
2023-11-30$7.74$7.7422,200
2023-11-29$7.70$7.7012,500
2023-11-28$7.76$7.7617,800
2023-11-27$7.67$7.6748,300
2023-11-24$7.58$7.5821,000
2023-11-22$7.65$7.654,300
2023-11-21$7.56$7.569,100
2023-11-20$7.70$7.7016,300
2023-11-17$7.50$7.5019,800
2023-11-16$7.43$7.4312,300
2023-11-15$7.20$7.2040,800
2023-11-14$7.37$7.3713,700
2023-11-13$7.23$7.235,200
2023-11-10$7.14$7.147,000
2023-11-09$7.28$7.285,800
2023-11-08$6.93$6.9320,800
2023-11-07$7.36$7.369,300
2023-11-06$7.45$7.4515,600
2023-11-03$7.41$7.4125,300
2023-11-02$7.26$7.2622,000
2023-11-01$6.90$6.907,800
2023-10-31$7.17$7.177,700
2023-10-30$7.25$7.255,900
2023-10-27$7.31$7.3114,500
2023-10-26$7.05$7.0550,900
2023-10-25$7.15$7.1525,100
2023-10-24$7.18$7.1827,100
2023-10-23$7.36$7.3648,400
2023-10-20$7.78$7.7812,200
2023-10-19$7.81$7.817,200
2023-10-18$8.00$8.009,200
2023-10-17$7.98$7.9831,900
2023-10-16$7.71$7.7117,800
2023-10-13$7.57$7.579,000
2023-10-12$7.77$7.777,000
2023-10-11$7.69$7.696,500
2023-10-10$7.75$7.7526,500
2023-10-09$7.80$7.807,100
2023-10-06$7.84$7.849,100
2023-10-05$7.61$7.6119,900
2023-10-04$7.41$7.4113,500
2023-10-03$7.40$7.4031,300
2023-10-02$7.57$7.577,300
2023-09-29$7.62$7.627,700
2023-09-28$7.62$7.6211,400
2023-09-27$7.32$7.3214,500
2023-09-26$7.38$7.3836,600
2023-09-25$7.58$7.5815,000
2023-09-22$7.61$7.6118,300
2023-09-21$7.73$7.7334,900
2023-09-20$7.75$7.7538,700
2023-09-19$7.75$7.7530,300
2023-09-18$7.79$7.7921,400
2023-09-15$7.77$7.7751,000
2023-09-14$8.11$8.1163,700
2023-09-13$8.22$8.2238,300
2023-09-12$8.07$8.0751,400
2023-09-11$8.01$8.0124,500
2023-09-08$8.21$8.2131,200
2023-09-07$8.54$8.5437,100
2023-09-06$8.60$8.6076,800
2023-09-05$8.45$8.4566,600
2023-09-01$8.61$8.6149,600
2023-08-31$8.58$8.5839,000
2023-08-30$8.65$8.6537,000
2023-08-29$8.63$8.6349,200
2023-08-28$8.56$8.5623,200
2023-08-25$8.57$8.5756,100
2023-08-24$8.57$8.5751,600
2023-08-23$8.61$8.6164,000
2023-08-22$8.63$8.6325,100
2023-08-21$8.60$8.6042,300
2023-08-18$8.60$8.6065,700
2023-08-17$8.65$8.6556,900
2023-08-16$8.42$8.4240,100
2023-08-15$8.75$8.7542,500
2023-08-14$9.00$9.0048,200
2023-08-11$8.89$8.8959,900
2023-08-10$8.70$8.70331,200
2023-08-09$10.70$10.7029,400
2023-08-08$10.60$10.6019,200
2023-08-07$10.70$10.7032,700
2023-08-04$10.83$10.8331,100
2023-08-03$10.60$10.6020,700
2023-08-02$10.61$10.6134,200
2023-08-01$10.90$10.9032,500
2023-07-31$10.75$10.7527,800
2023-07-28$10.91$10.9133,600
2023-07-27$10.77$10.7716,900
2023-07-26$10.82$10.8267,500
2023-07-25$9.94$9.9426,500
2023-07-24$9.94$9.9425,200
2023-07-21$10.15$10.1510,700
2023-07-20$10.11$10.1157,600
2023-07-19$10.60$10.6029,700
2023-07-18$10.60$10.6092,600
2023-07-17$10.32$10.32101,500
2023-07-14$10.11$10.1165,200
2023-07-13$9.89$9.8935,500
2023-07-12$9.52$9.5220,500
2023-07-11$9.29$9.2921,200
2023-07-10$9.53$9.5321,900
2023-07-07$9.43$9.4312,400
2023-07-06$9.29$9.2919,300
2023-07-05$9.33$9.3317,200
2023-07-03$9.25$9.2572,200
2023-06-30$9.56$9.5629,100
2023-06-29$9.16$9.164,400
2023-06-28$9.01$9.0112,500
2023-06-27$9.30$9.3031,800
2023-06-26$9.24$9.24100,100
2023-06-23$9.01$9.0111,900
2023-06-22$8.94$8.949,100
2023-06-21$8.80$8.8028,000
2023-06-20$8.85$8.8516,600
2023-06-16$9.27$9.2718,200
2023-06-15$9.51$9.5112,900
2023-06-14$9.70$9.7034,600
2023-06-13$9.56$9.5653,100
2023-06-12$9.63$9.6314,200
2023-06-09$9.70$9.7013,600
2023-06-08$10.21$10.2119,100
2023-06-07$9.85$9.8511,600
2023-06-06$9.55$9.5510,500
2023-06-05$9.47$9.4716,400
2023-06-02$9.27$9.2715,200
2023-06-01$8.87$8.8715,500
2023-05-31$8.90$8.9013,500
2023-05-30$8.93$8.9321,800
2023-05-26$9.44$9.4422,600
2023-05-25$9.03$9.0334,400
2023-05-24$9.50$9.5035,600
2023-05-23$9.07$9.0729,400
2023-05-22$8.79$8.7923,100
2023-05-19$8.76$8.7650,500
2023-05-18$8.91$8.9116,300
2023-05-17$8.82$8.8220,700
2023-05-16$8.65$8.6527,200
2023-05-15$8.82$8.8212,900
2023-05-12$8.75$8.7548,500
2023-05-11$8.89$8.8983,000
2023-05-10$8.82$8.8232,400
2023-05-09$9.00$9.0036,000
2023-05-08$8.85$8.8517,400
2023-05-05$9.05$9.0528,000
2023-05-04$8.69$8.6916,300
2023-05-03$8.61$8.6136,500
2023-05-02$8.60$8.6015,200
2023-05-01$8.69$8.6929,700
2023-04-28$8.63$8.637,900
2023-04-27$8.55$8.5530,700
2023-04-26$8.67$8.679,500
2023-04-25$8.50$8.5014,900
2023-04-24$8.73$8.737,200
2023-04-21$8.72$8.7213,000
2023-04-20$8.71$8.7124,000
2023-04-19$8.86$8.869,900
2023-04-18$8.90$8.9018,700
2023-04-17$9.05$9.058,900
2023-04-14$9.52$9.5233,700
2023-04-13$9.60$9.6019,700
2023-04-12$9.65$9.6550,000
2023-04-11$9.25$9.2535,200
2023-04-10$9.07$9.0743,200
2023-04-06$9.10$9.109,400
2023-04-05$8.94$8.947,900
2023-04-04$9.23$9.2316,900
2023-04-03$9.46$9.4633,800
2023-03-31$9.54$9.5420,500
2023-03-30$9.20$9.2031,000
2023-03-29$8.59$8.5921,200
2023-03-28$8.51$8.5120,100
2023-03-27$8.66$8.6610,500
2023-03-24$8.65$8.6518,100
2023-03-23$8.74$8.7433,100
2023-03-22$8.78$8.7850,700
2023-03-21$8.46$8.4637,700
2023-03-20$8.34$8.3420,300
2023-03-17$8.59$8.5928,400
2023-03-16$8.77$8.7731,000
2023-03-15$8.85$8.8532,700
2023-03-14$8.95$8.9521,200
2023-03-13$9.01$9.0136,300
2023-03-10$9.00$9.0088,300
2023-03-09$9.53$9.5330,300
2023-03-08$9.58$9.5850,300
2023-03-07$9.67$9.6732,800
2023-03-06$9.62$9.6229,000
2023-03-03$9.64$9.6411,000
2023-03-02$9.55$9.5527,100
2023-03-01$9.55$9.5532,200
2023-02-28$9.58$9.5816,300
2023-02-27$9.53$9.5328,400
2023-02-24$9.45$9.4514,400
2023-02-23$9.70$9.7015,100
2023-02-22$9.45$9.4524,300
2023-02-21$9.36$9.3659,000
2023-02-17$9.50$9.5028,200
2023-02-16$9.74$9.7435,000
2023-02-15$9.52$9.5269,200
2023-02-14$9.44$9.44222,500
2023-02-13$9.45$9.45152,000
2023-02-10$9.78$9.78270,200
2023-02-09$9.06$9.06208,500
2023-02-08$10.79$10.7945,500
2023-02-07$11.03$11.0328,400
2023-02-06$11.02$11.0244,100
2023-02-03$10.93$10.9358,100
2023-02-02$11.18$11.18101,800
2023-02-01$10.54$10.5449,400
2023-01-31$10.83$10.8351,600
2023-01-30$10.70$10.7040,600
2023-01-27$10.86$10.86102,400
2023-01-26$10.55$10.5598,600
2023-01-25$9.62$9.6222,200
2023-01-24$9.34$9.3413,500
2023-01-23$9.28$9.2836,200
2023-01-20$8.91$8.9124,300
2023-01-19$8.82$8.8217,100
2023-01-18$9.03$9.0319,800
2023-01-17$9.35$9.3547,500
2023-01-13$9.61$9.6125,700
2023-01-12$9.25$9.2542,200
2023-01-11$9.11$9.1119,700
2023-01-10$8.88$8.8840,300
2023-01-09$8.41$8.4129,300
2023-01-06$8.60$8.6017,400
2023-01-05$8.30$8.307,800
2023-01-04$8.14$8.1425,000
2023-01-03$7.98$7.9853,300