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 — 1993

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1993-12-31$3.00$3.00100——
1993-12-30$3.25$3.254,300——
1993-12-29$3.00$3.0021,000——
1993-12-28$2.88$2.88100——
1993-12-27$2.88$2.885,200——
1993-12-23$2.88$2.886,300——
1993-12-22$3.13$3.130——
1993-12-21$3.13$3.1321,500——
1993-12-20$2.75$2.750——
1993-12-17$2.75$2.75100——
1993-12-16$2.88$2.880——
1993-12-15$2.88$2.881,200——
1993-12-14$2.63$2.633,300——
1993-12-13$2.63$2.632,500——
1993-12-10$2.63$2.63100——
1993-12-09$2.63$2.63600——
1993-12-08$2.72$2.720——
1993-12-07$2.72$2.7211,700——
1993-12-06$3.00$3.00500——
1993-12-03$3.00$3.001,300——
1993-12-02$3.00$3.000——
1993-12-01$3.00$3.00200——
1993-11-30$3.06$3.061,900——
1993-11-29$3.00$3.002,000——
1993-11-26$3.00$3.000——
1993-11-24$3.00$3.000——
1993-11-23$3.00$3.002,600——
1993-11-22$3.00$3.000——
1993-11-19$3.00$3.000——
1993-11-18$3.00$3.00100——
1993-11-17$3.00$3.00200——
1993-11-16$3.00$3.000——
1993-11-15$3.00$3.00700——
1993-11-12$3.38$3.38500——
1993-11-11$3.38$3.380——
1993-11-10$3.38$3.380——
1993-11-09$3.38$3.383,200——
1993-11-08$3.38$3.380——
1993-11-05$3.38$3.380——
1993-11-04$3.38$3.386,000——
1993-11-03$3.38$3.381,800——
1993-11-02$3.00$3.005,000——
1993-11-01$3.00$3.002,100——
1993-10-29$3.06$3.063,600——
1993-10-28$3.25$3.252,400——
1993-10-27$3.25$3.251,200——
1993-10-26$3.31$3.315,000——
1993-10-25$3.50$3.501,000——
1993-10-22$3.75$3.750——
1993-10-21$3.75$3.752,100——
1993-10-20$3.50$3.501,000——
1993-10-19$3.50$3.500——
1993-10-18$3.50$3.500——
1993-10-15$3.50$3.500——
1993-10-14$3.50$3.507,700——
1993-10-13$3.63$3.63100——
1993-10-12$3.63$3.63300——
1993-10-11$3.69$3.696,900——
1993-10-08$3.88$3.88500——
1993-10-07$3.88$3.882,000——
1993-10-06$3.88$3.880——
1993-10-05$3.88$3.881,300——
1993-10-04$4.13$4.137,000——
1993-10-01$3.75$3.750——
1993-09-30$3.75$3.752,000——
1993-09-29$4.00$4.008,600——
1993-09-28$4.00$4.000——
1993-09-27$4.00$4.002,500——
1993-09-24$4.06$4.062,900——
1993-09-23$4.13$4.1338,100——
1993-09-22$3.63$3.631,100——
1993-09-21$3.88$3.888,000——
1993-09-20$3.63$3.634,100——
1993-09-17$4.00$4.008,900——
1993-09-16$3.75$3.751,200——
1993-09-15$3.75$3.7548,800——
1993-09-14$3.88$3.88111,900——
1993-09-13$3.38$3.381,200——
1993-09-10$3.31$3.313,000——
1993-09-09$3.00$3.0012,300——
1993-09-08$3.13$3.1312,500——
1993-09-07$3.38$3.38900——
1993-09-03$3.25$3.251,800——
1993-09-02$3.38$3.383,900——
1993-09-01$3.19$3.194,200——
1993-08-31$3.19$3.1911,800——
1993-08-30$3.16$3.167,700——
1993-08-27$3.25$3.253,500——
1993-08-26$3.50$3.500——
1993-08-25$3.50$3.507,200——
1993-08-24$3.63$3.632,400——
1993-08-23$3.63$3.637,500——
1993-08-20$3.75$3.750——
1993-08-19$3.75$3.755,700——
1993-08-18$3.88$3.8833,000——
1993-08-17$3.31$3.3124,800——
1993-08-16$3.38$3.3840,000——
1993-08-13$2.50$2.505,000——
1993-08-12$2.56$2.5626,400——
1993-08-11$2.25$2.253,600——
1993-08-10$2.13$2.130——
1993-08-09$2.13$2.130——
1993-08-06$2.13$2.130——
1993-08-05$2.13$2.130——
1993-08-04$2.13$2.130——
1993-08-03$2.13$2.132,800——
1993-08-02$2.13$2.13300——
1993-07-30$2.25$2.250——
1993-07-29$2.25$2.2510,000——
1993-07-28$2.13$2.130——
1993-07-27$2.13$2.1314,300——
1993-07-26$1.75$1.750——
1993-07-23$1.75$1.750——
1993-07-22$1.75$1.750——
1993-07-21$1.75$1.750——
1993-07-20$1.75$1.750——
1993-07-19$1.75$1.750——
1993-07-16$1.75$1.750——
1993-07-15$1.75$1.750——
1993-07-14$1.75$1.751,200——
1993-07-13$1.75$1.750——
1993-07-12$1.75$1.750——
1993-07-09$1.75$1.751,300——
1993-07-08$2.00$2.000——
1993-07-07$2.00$2.001,000——
1993-07-06$1.63$1.630——
1993-07-02$1.63$1.630——
1993-07-01$1.63$1.630——
1993-06-30$1.63$1.631,500——
1993-06-29$1.63$1.63300——
1993-06-28$1.63$1.630——
1993-06-25$1.63$1.630——
1993-06-24$1.63$1.634,000——
1993-06-23$2.13$2.130——
1993-06-22$2.13$2.13200——
1993-06-21$1.63$1.630——
1993-06-18$1.63$1.63500——
1993-06-17$1.63$1.630——
1993-06-16$1.63$1.630——
1993-06-15$1.63$1.630——
1993-06-14$1.63$1.63100——
1993-06-11$2.13$2.130——
1993-06-10$2.13$2.13200——
1993-06-09$1.63$1.63300——
1993-06-08$1.63$1.63900——
1993-06-07$1.63$1.630——
1993-06-04$1.50$1.503,500——
1993-06-03$2.00$2.000——
1993-06-02$2.00$2.00650——
1993-06-01$1.75$1.751,300——
1993-05-28$1.75$1.755,850——
1993-05-27$2.25$2.251,650——
1993-05-26$2.00$2.00100——
1993-05-25$2.25$2.251,350——
1993-05-24$2.25$2.254,800——
1993-05-21$2.25$2.251,250——
1993-05-20$2.25$2.2516,300——
1993-05-19$2.25$2.259,000——
1993-05-18$2.25$2.251,000——
1993-05-17$2.25$2.2515,350——
1993-05-14$2.25$2.2519,600——
1993-05-13$2.00$2.0031,700——
1993-05-12$2.00$2.0067,700——
1993-05-11$1.25$1.259,700——
1993-05-10$1.25$1.250——
1993-05-07$1.25$1.2517,550——
1993-05-06$1.25$1.250——
1993-05-05$1.25$1.250——
1993-05-04$1.25$1.251,600——
1993-05-03$1.25$1.2550——
1993-04-30$1.25$1.250——
1993-04-29$1.25$1.250——
1993-04-28$1.25$1.250——
1993-04-27$1.25$1.25100——
1993-04-26$1.25$1.2517,000——
1993-04-23$1.25$1.25500——
1993-04-22$1.25$1.25500——
1993-04-21$1.25$1.250——
1993-04-20$1.25$1.250——
1993-04-19$1.25$1.250——
1993-04-16$1.25$1.2511,800——
1993-04-15$1.25$1.252,200——
1993-04-14$1.25$1.252,200——
1993-04-13$1.25$1.250——
1993-04-12$1.25$1.251,050——
1993-04-08$1.25$1.25550——
1993-04-07$1.50$1.50500——
1993-04-06$1.25$1.250——
1993-04-05$1.25$1.250——
1993-04-02$1.25$1.250——
1993-04-01$1.25$1.251,400——
1993-03-31$1.25$1.2512,100——
1993-03-30$1.25$1.25100——
1993-03-29$1.25$1.250——
1993-03-26$1.25$1.25450——
1993-03-25$1.25$1.250——
1993-03-24$1.25$1.251,350——
1993-03-23$1.25$1.250——
1993-03-22$1.25$1.250——
1993-03-19$1.25$1.250——
1993-03-18$1.25$1.250——
1993-03-17$1.25$1.250——
1993-03-16$1.25$1.25850——
1993-03-15$1.25$1.250——
1993-03-12$1.25$1.25250——
1993-03-11$1.25$1.250——
1993-03-10$1.25$1.250——
1993-03-09$1.25$1.250——
1993-03-08$1.25$1.250——
1993-03-05$1.25$1.250——
1993-03-04$1.25$1.25100——
1993-03-03$1.50$1.50250——
1993-03-02$1.25$1.250——
1993-03-01$1.25$1.25550——
1993-02-26$1.25$1.250——
1993-02-25$1.25$1.25400——
1993-02-24$1.25$1.25500——
1993-02-23$1.50$1.50750——
1993-02-22$1.50$1.500——
1993-02-19$1.50$1.500——
1993-02-18$1.50$1.500——
1993-02-17$1.50$1.500——
1993-02-16$1.50$1.500——
1993-02-12$1.50$1.500——
1993-02-11$1.50$1.500——
1993-02-10$1.50$1.50250——
1993-02-09$1.25$1.258,800——
1993-02-08$1.25$1.251,500——
1993-02-05$1.25$1.250——
1993-02-04$1.25$1.250——
1993-02-03$1.25$1.250——
1993-02-02$1.25$1.2550——
1993-02-01$1.00$1.001,000——
1993-01-29$1.25$1.251,000——
1993-01-28$1.25$1.250——
1993-01-27$1.25$1.250——
1993-01-26$1.25$1.250——
1993-01-25$1.25$1.251,900——
1993-01-22$1.00$1.000——
1993-01-21$1.00$1.0050——
1993-01-20$1.25$1.250——
1993-01-19$1.25$1.250——
1993-01-18$1.25$1.2511,650——
1993-01-15$1.25$1.25700——
1993-01-14$1.00$1.000——
1993-01-13$1.00$1.000——
1993-01-12$1.00$1.000——
1993-01-11$1.00$1.0050——
1993-01-08$1.00$1.000——
1993-01-07$1.00$1.000——
1993-01-06$1.00$1.000——
1993-01-05$1.00$1.000——
1993-01-04$1.00$1.000——