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 — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$7.77$7.77117,100
2005-12-29$7.40$7.4060,500
2005-12-28$8.23$8.2318,400
2005-12-27$8.25$8.2516,600
2005-12-23$8.11$8.113,800
2005-12-22$8.21$8.219,300
2005-12-21$7.55$7.55300
2005-12-20$7.56$7.564,600
2005-12-19$7.60$7.608,500
2005-12-16$7.72$7.7224,500
2005-12-15$7.71$7.7124,000
2005-12-14$8.17$8.1711,500
2005-12-13$8.43$8.431,400
2005-12-12$8.50$8.507,200
2005-12-09$8.50$8.5016,900
2005-12-08$8.30$8.3050,200
2005-12-07$8.70$8.7030,600
2005-12-06$8.30$8.3036,600
2005-12-05$8.11$8.1139,500
2005-12-02$7.83$7.8313,400
2005-12-01$7.29$7.2911,900
2005-11-30$7.26$7.265,200
2005-11-29$7.20$7.2014,100
2005-11-28$7.23$7.2320,500
2005-11-25$7.26$7.2627,500
2005-11-23$6.90$6.9021,600
2005-11-22$6.90$6.9018,900
2005-11-21$6.39$6.3914,400
2005-11-18$6.65$6.6547,200
2005-11-17$6.74$6.74129,100
2005-11-16$5.60$5.602,200
2005-11-15$5.54$5.545,400
2005-11-14$5.60$5.6012,700
2005-11-11$5.65$5.651,400
2005-11-10$5.78$5.785,600
2005-11-09$5.68$5.6810,900
2005-11-08$5.52$5.521,800
2005-11-07$5.78$5.785,400
2005-11-04$5.64$5.648,200
2005-11-03$5.69$5.692,000
2005-11-02$5.75$5.754,200
2005-11-01$5.44$5.4430,600
2005-10-31$5.50$5.5020,700
2005-10-28$5.55$5.553,800
2005-10-27$5.41$5.414,500
2005-10-26$5.65$5.651,500
2005-10-25$5.77$5.776,600
2005-10-24$5.54$5.542,100
2005-10-21$5.56$5.568,800
2005-10-20$5.41$5.41100
2005-10-19$5.73$5.735,600
2005-10-18$5.40$5.4014,300
2005-10-17$5.60$5.6022,100
2005-10-14$5.91$5.914,900
2005-10-13$5.62$5.6231,200
2005-10-12$5.81$5.8112,400
2005-10-11$6.09$6.096,000
2005-10-10$6.37$6.37300
2005-10-07$6.20$6.208,100
2005-10-06$6.32$6.3217,500
2005-10-05$6.50$6.5013,600
2005-10-04$6.50$6.50114,400
2005-10-03$5.89$5.8929,500
2005-09-30$5.75$5.7554,500
2005-09-29$6.09$6.095,900
2005-09-28$6.19$6.197,100
2005-09-27$6.11$6.1111,600
2005-09-26$6.10$6.1022,500
2005-09-23$6.26$6.2610,400
2005-09-22$6.32$6.329,600
2005-09-21$6.29$6.2913,800
2005-09-20$6.10$6.1042,900
2005-09-19$6.00$6.0049,400
2005-09-16$6.10$6.10122,500
2005-09-15$6.06$6.06295,500
2005-09-14$7.17$7.17913,900
2005-09-13$5.06$5.0614,800
2005-09-12$5.31$5.313,400
2005-09-09$5.37$5.376,300
2005-09-08$5.25$5.25600
2005-09-07$5.10$5.103,000
2005-09-06$5.13$5.1310,800
2005-09-02$5.15$5.151,200
2005-09-01$5.17$5.172,600
2005-08-31$5.18$5.188,700
2005-08-30$5.25$5.251,200
2005-08-29$5.19$5.194,500
2005-08-26$5.16$5.163,700
2005-08-25$5.35$5.353,600
2005-08-24$5.42$5.422,700
2005-08-23$5.37$5.3718,100
2005-08-22$5.36$5.3610,800
2005-08-19$5.29$5.2918,100
2005-08-18$5.11$5.1111,800
2005-08-17$5.08$5.0825,700
2005-08-16$4.95$4.9555,400
2005-08-15$5.15$5.1513,000
2005-08-12$5.30$5.305,600
2005-08-11$5.36$5.3621,400
2005-08-10$5.10$5.1060,100
2005-08-09$5.84$5.8470,400
2005-08-08$5.83$5.8312,200
2005-08-05$5.93$5.934,800
2005-08-04$5.88$5.8828,400
2005-08-03$5.71$5.7178,800
2005-08-02$6.00$6.0059,400
2005-08-01$6.72$6.7216,600
2005-07-29$6.76$6.7621,100
2005-07-28$6.81$6.8115,000
2005-07-27$6.73$6.7336,300
2005-07-26$6.79$6.79105,100
2005-07-25$6.18$6.18102,500
2005-07-22$5.49$5.498,500
2005-07-21$5.26$5.263,600
2005-07-20$5.46$5.466,300
2005-07-19$5.46$5.462,300
2005-07-18$5.46$5.469,700
2005-07-15$5.67$5.6712,100
2005-07-14$5.59$5.5916,100
2005-07-13$5.38$5.3810,500
2005-07-12$5.37$5.3711,600
2005-07-11$5.24$5.2419,100
2005-07-08$4.76$4.765,600
2005-07-07$4.83$4.833,700
2005-07-06$4.96$4.9612,000
2005-07-05$4.95$4.959,100
2005-07-01$5.16$5.164,600
2005-06-30$5.14$5.1411,200
2005-06-29$5.11$5.113,800
2005-06-28$5.14$5.1411,300
2005-06-27$5.29$5.2914,100
2005-06-24$4.90$4.9016,600
2005-06-23$5.35$5.358,700
2005-06-22$5.46$5.4634,100
2005-06-21$5.50$5.504,900
2005-06-20$5.22$5.2212,100
2005-06-17$5.35$5.355,100
2005-06-16$5.40$5.405,500
2005-06-15$5.43$5.4311,700
2005-06-14$5.60$5.609,100
2005-06-13$5.27$5.2727,000
2005-06-10$5.50$5.504,000
2005-06-09$5.39$5.3923,400
2005-06-08$5.13$5.1325,800
2005-06-07$5.42$5.4229,100
2005-06-06$5.72$5.7231,200
2005-06-03$5.30$5.3028,600
2005-06-02$5.35$5.3556,300
2005-06-01$5.80$5.8059,400
2005-05-31$5.99$5.9966,600
2005-05-27$5.90$5.90110,300
2005-05-26$5.65$5.65150,100
2005-05-25$4.80$4.8034,200
2005-05-24$4.69$4.6918,600
2005-05-23$4.65$4.6578,800
2005-05-20$4.40$4.4013,600
2005-05-19$4.55$4.5523,600
2005-05-18$4.60$4.6066,800
2005-05-17$4.22$4.22133,700
2005-05-16$3.95$3.9516,600
2005-05-13$3.90$3.9012,300
2005-05-12$3.87$3.87900
2005-05-11$3.95$3.955,900
2005-05-10$3.79$3.798,700
2005-05-09$3.90$3.9016,400
2005-05-06$3.85$3.8542,600
2005-05-05$3.75$3.7517,100
2005-05-04$3.72$3.7214,100
2005-05-03$3.75$3.7533,400
2005-05-02$3.40$3.4046,100
2005-04-29$3.50$3.5034,300
2005-04-28$3.60$3.6035,900
2005-04-27$3.30$3.303,600
2005-04-26$3.10$3.105,300
2005-04-25$3.06$3.065,800
2005-04-22$3.06$3.061,700
2005-04-21$2.87$2.8720,900
2005-04-20$3.01$3.01200
2005-04-19$3.07$3.073,200
2005-04-18$3.11$3.111,900
2005-04-15$3.25$3.255,400
2005-04-14$3.48$3.483,500
2005-04-13$3.51$3.5130,100
2005-04-12$3.61$3.6127,100
2005-04-11$3.01$3.0116,200
2005-04-08$2.98$2.9815,200
2005-04-07$3.11$3.116,000
2005-04-06$3.01$3.0113,700
2005-04-05$2.90$2.9020,900
2005-04-04$3.18$3.186,700
2005-04-01$3.19$3.1936,000
2005-03-31$3.15$3.1512,100
2005-03-30$3.22$3.221,600
2005-03-29$3.24$3.242,100
2005-03-28$3.31$3.317,900
2005-03-24$3.23$3.236,000
2005-03-23$3.38$3.389,100
2005-03-22$3.24$3.245,300
2005-03-21$3.38$3.381,100
2005-03-18$3.34$3.3414,400
2005-03-17$3.37$3.3711,800
2005-03-16$3.25$3.253,300
2005-03-15$3.22$3.223,000
2005-03-14$3.28$3.287,300
2005-03-11$3.31$3.311,100
2005-03-10$3.35$3.355,700
2005-03-09$3.36$3.366,200
2005-03-08$3.51$3.511,300
2005-03-07$3.51$3.5115,800
2005-03-04$3.70$3.7018,500
2005-03-03$3.55$3.5531,700
2005-03-02$3.52$3.5228,200
2005-03-01$3.41$3.4115,800
2005-02-28$3.24$3.2427,300
2005-02-25$3.26$3.269,300
2005-02-24$3.35$3.3538,000
2005-02-23$3.52$3.524,500
2005-02-22$3.57$3.5719,600
2005-02-18$3.75$3.7528,200
2005-02-17$3.66$3.669,800
2005-02-16$3.63$3.6381,300
2005-02-15$3.83$3.83264,400
2005-02-14$2.88$2.882,600
2005-02-11$3.00$3.006,700
2005-02-10$3.08$3.081,700
2005-02-09$2.88$2.888,600
2005-02-08$2.94$2.944,300
2005-02-07$2.88$2.8827,400
2005-02-04$3.03$3.033,900
2005-02-03$2.94$2.9416,800
2005-02-02$3.25$3.2528,600
2005-02-01$3.51$3.516,100
2005-01-31$3.79$3.792,400
2005-01-28$3.65$3.652,300
2005-01-27$3.67$3.67500
2005-01-26$3.63$3.639,600
2005-01-25$3.66$3.666,800
2005-01-24$3.75$3.757,200
2005-01-21$3.84$3.846,700
2005-01-20$3.71$3.714,400
2005-01-19$3.78$3.785,900
2005-01-18$3.59$3.5915,200
2005-01-14$3.60$3.6026,800
2005-01-13$4.00$4.003,300
2005-01-12$3.91$3.911,100
2005-01-11$4.00$4.0010,000
2005-01-10$4.13$4.13800
2005-01-07$4.11$4.113,100
2005-01-06$4.00$4.0017,600
2005-01-05$4.10$4.1010,100
2005-01-04$4.17$4.172,900
2005-01-03$4.10$4.108,200