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 — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1997-12-31$4.75$4.758,500
1997-12-30$4.88$4.8818,600
1997-12-29$4.88$4.888,450
1997-12-26$5.00$5.002,500
1997-12-24$4.75$4.751,000
1997-12-23$5.25$5.256,400
1997-12-22$5.25$5.255,000
1997-12-19$5.00$5.003,150
1997-12-18$5.75$5.755,550
1997-12-17$5.75$5.754,700
1997-12-16$5.75$5.751,700
1997-12-15$6.00$6.004,450
1997-12-12$5.75$5.752,600
1997-12-11$5.75$5.7516,600
1997-12-10$6.00$6.007,400
1997-12-09$6.25$6.252,300
1997-12-08$6.25$6.252,250
1997-12-05$6.38$6.383,400
1997-12-04$6.25$6.251,550
1997-12-03$6.25$6.2512,750
1997-12-02$6.94$6.948,400
1997-12-01$6.50$6.503,950
1997-11-28$6.50$6.50800
1997-11-26$6.75$6.753,500
1997-11-25$6.25$6.2510,250
1997-11-24$6.25$6.252,750
1997-11-21$6.50$6.502,150
1997-11-20$7.00$7.001,050
1997-11-19$6.75$6.755,950
1997-11-18$6.63$6.638,050
1997-11-17$6.88$6.886,650
1997-11-14$6.50$6.502,600
1997-11-13$6.50$6.501,150
1997-11-12$6.50$6.502,750
1997-11-11$6.88$6.887,800
1997-11-10$6.88$6.88250
1997-11-07$6.75$6.753,250
1997-11-06$6.88$6.882,000
1997-11-05$6.88$6.882,550
1997-11-04$6.88$6.883,650
1997-11-03$6.50$6.5012,850
1997-10-31$7.19$7.196,100
1997-10-30$7.25$7.2510,350
1997-10-29$7.25$7.2525,950
1997-10-28$6.94$6.949,250
1997-10-27$7.38$7.3815,650
1997-10-24$7.38$7.3811,300
1997-10-23$7.13$7.1321,650
1997-10-22$7.13$7.1327,300
1997-10-21$7.13$7.1324,600
1997-10-20$6.63$6.6311,250
1997-10-17$6.69$6.693,800
1997-10-16$6.63$6.633,650
1997-10-15$6.63$6.633,150
1997-10-14$6.88$6.8816,550
1997-10-13$6.50$6.5028,550
1997-10-10$6.56$6.5674,100
1997-10-09$6.19$6.1957,600
1997-10-08$4.75$4.7528,200
1997-10-07$5.00$5.0016,450
1997-10-06$5.38$5.380
1997-10-03$5.38$5.388,800
1997-10-02$5.50$5.508,400
1997-10-01$5.50$5.504,950
1997-09-30$5.38$5.3824,550
1997-09-29$5.75$5.750
1997-09-26$5.75$5.754,900
1997-09-25$5.50$5.5010,200
1997-09-24$6.13$6.132,250
1997-09-23$6.25$6.259,350
1997-09-22$6.50$6.5016,000
1997-09-19$6.38$6.385,600
1997-09-18$6.00$6.008,450
1997-09-17$5.50$5.502,400
1997-09-16$6.00$6.0027,700
1997-09-15$5.88$5.882,100
1997-09-12$6.00$6.002,900
1997-09-11$5.63$5.633,500
1997-09-10$5.75$5.7534,900
1997-09-09$5.75$5.755,200
1997-09-08$5.38$5.3850
1997-09-05$5.25$5.25800
1997-09-04$5.75$5.756,450
1997-09-03$5.25$5.253,800
1997-09-02$5.88$5.881,350
1997-08-29$5.75$5.759,100
1997-08-28$6.00$6.009,250
1997-08-27$6.00$6.003,050
1997-08-26$5.25$5.256,900
1997-08-25$6.00$6.006,200
1997-08-22$5.75$5.752,600
1997-08-21$5.50$5.503,150
1997-08-20$5.75$5.7510,050
1997-08-19$6.25$6.255,400
1997-08-18$6.00$6.0017,100
1997-08-15$6.50$6.509,350
1997-08-14$5.50$5.502,200
1997-08-13$6.00$6.005,700
1997-08-12$6.13$6.1314,500
1997-08-11$6.25$6.256,750
1997-08-08$6.50$6.5012,000
1997-08-07$6.38$6.389,700
1997-08-06$6.88$6.8813,250
1997-08-05$6.75$6.7518,000
1997-08-04$6.25$6.252,100
1997-08-01$6.50$6.506,500
1997-07-31$6.63$6.6352,800
1997-07-30$6.00$6.0011,750
1997-07-29$5.88$5.8824,800
1997-07-28$5.50$5.50200
1997-07-25$5.75$5.7510,100
1997-07-24$5.75$5.752,900
1997-07-23$6.00$6.002,750
1997-07-22$6.25$6.252,950
1997-07-21$6.00$6.001,250
1997-07-18$6.00$6.002,500
1997-07-17$6.00$6.0011,350
1997-07-16$6.00$6.0040,500
1997-07-15$6.00$6.0022,600
1997-07-14$6.00$6.008,650
1997-07-11$5.50$5.50150
1997-07-10$5.50$5.504,400
1997-07-09$6.25$6.257,000
1997-07-08$6.25$6.257,300
1997-07-07$6.25$6.254,750
1997-07-03$6.00$6.007,000
1997-07-02$6.00$6.0012,000
1997-07-01$6.00$6.001,900
1997-06-30$6.00$6.00600
1997-06-27$6.00$6.007,400
1997-06-26$5.75$5.7512,850
1997-06-25$6.25$6.2518,850
1997-06-24$6.38$6.3821,200
1997-06-23$6.00$6.0010,000
1997-06-20$6.00$6.0011,400
1997-06-19$6.50$6.507,150
1997-06-18$6.63$6.631,500
1997-06-17$6.25$6.254,000
1997-06-16$7.00$7.007,200
1997-06-13$6.25$6.257,150
1997-06-12$6.50$6.5018,300
1997-06-11$6.25$6.2532,550
1997-06-10$6.00$6.004,000
1997-06-09$6.00$6.00300
1997-06-06$6.00$6.0015,400
1997-06-05$5.75$5.756,650
1997-06-04$5.50$5.5010,350
1997-06-03$6.00$6.0027,800
1997-06-02$5.75$5.751,050
1997-05-30$6.25$6.257,800
1997-05-29$6.50$6.5019,700
1997-05-28$6.25$6.254,050
1997-05-27$6.25$6.2525,800
1997-05-23$5.50$5.503,550
1997-05-22$5.50$5.504,450
1997-05-21$5.50$5.50200
1997-05-20$6.00$6.004,850
1997-05-19$5.75$5.753,450
1997-05-16$5.75$5.7518,400
1997-05-15$6.00$6.0012,800
1997-05-14$5.50$5.5056,300
1997-05-13$5.00$5.007,000
1997-05-12$5.00$5.004,100
1997-05-09$5.25$5.25750
1997-05-08$5.25$5.258,850
1997-05-07$5.00$5.0014,000
1997-05-06$5.25$5.2511,550
1997-05-05$5.00$5.009,500
1997-05-02$5.25$5.252,250
1997-05-01$4.75$4.754,250
1997-04-30$5.50$5.5021,600
1997-04-29$5.75$5.752,000
1997-04-28$5.75$5.752,000
1997-04-25$5.75$5.752,400
1997-04-24$5.75$5.752,050
1997-04-23$6.19$6.193,850
1997-04-22$6.25$6.251,750
1997-04-21$5.75$5.752,900
1997-04-18$6.00$6.000
1997-04-17$6.00$6.004,450
1997-04-16$6.00$6.0018,950
1997-04-15$6.25$6.253,900
1997-04-14$6.50$6.5027,650
1997-04-11$7.00$7.0015,650
1997-04-10$6.50$6.5013,550
1997-04-09$6.25$6.2535,450
1997-04-08$5.25$5.253,000
1997-04-07$4.75$4.75950
1997-04-04$5.00$5.0022,200
1997-04-03$4.38$4.3810,500
1997-04-02$4.44$4.441,550
1997-04-01$4.75$4.7519,300
1997-03-31$5.25$5.255,150
1997-03-27$4.50$4.50500
1997-03-26$4.50$4.50900
1997-03-25$4.25$4.252,750
1997-03-24$4.75$4.7519,850
1997-03-21$5.00$5.003,000
1997-03-20$4.50$4.502,800
1997-03-19$4.78$4.789,000
1997-03-18$4.50$4.5017,550
1997-03-17$5.00$5.000
1997-03-14$5.00$5.001,900
1997-03-13$4.25$4.259,700
1997-03-12$4.25$4.2537,000
1997-03-11$4.50$4.506,700
1997-03-10$4.00$4.009,750
1997-03-07$4.00$4.004,050
1997-03-06$4.00$4.002,550
1997-03-05$4.00$4.009,750
1997-03-04$4.25$4.258,000
1997-03-03$4.25$4.253,250
1997-02-28$5.00$5.006,500
1997-02-27$4.63$4.637,150
1997-02-26$5.00$5.005,950
1997-02-25$5.00$5.009,500
1997-02-24$5.25$5.251,250
1997-02-21$5.50$5.501,000
1997-02-20$5.25$5.254,850
1997-02-19$5.50$5.504,200
1997-02-18$5.25$5.25200
1997-02-14$5.75$5.750
1997-02-13$5.75$5.751,200
1997-02-12$5.75$5.7522,100
1997-02-11$5.75$5.755,700
1997-02-10$5.25$5.252,100
1997-02-07$5.25$5.258,050
1997-02-06$5.50$5.502,050
1997-02-05$6.25$6.2511,500
1997-02-04$5.50$5.50150
1997-02-03$5.50$5.50200
1997-01-31$5.63$5.634,200
1997-01-30$5.25$5.2517,600
1997-01-29$6.00$6.005,050
1997-01-28$5.50$5.5020,450
1997-01-27$6.00$6.002,000
1997-01-24$6.50$6.505,000
1997-01-23$5.75$5.754,350
1997-01-22$6.63$6.635,350
1997-01-21$7.00$7.004,900
1997-01-20$7.00$7.001,900
1997-01-17$7.00$7.001,750
1997-01-16$7.00$7.001,250
1997-01-15$7.50$7.505,200
1997-01-14$7.00$7.0023,200
1997-01-13$6.75$6.751,750
1997-01-10$6.69$6.694,400
1997-01-09$6.00$6.001,550
1997-01-08$6.00$6.006,200
1997-01-07$6.00$6.003,000
1997-01-06$6.00$6.002,500
1997-01-03$6.13$6.131,350
1997-01-02$6.00$6.00900