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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$7.16$7.16114,500
2019-12-30$7.07$7.0779,500
2019-12-27$7.01$7.0187,400
2019-12-26$6.89$6.8971,900
2019-12-24$6.63$6.6315,500
2019-12-23$6.59$6.5970,100
2019-12-20$6.54$6.5448,400
2019-12-19$6.47$6.4720,500
2019-12-18$6.65$6.6520,200
2019-12-17$6.67$6.6736,200
2019-12-16$6.60$6.6066,300
2019-12-13$6.53$6.5349,000
2019-12-12$6.41$6.4188,400
2019-12-11$6.25$6.2536,900
2019-12-10$6.21$6.2135,600
2019-12-09$6.20$6.2044,700
2019-12-06$6.06$6.0697,900
2019-12-05$5.99$5.9924,300
2019-12-04$5.95$5.9526,800
2019-12-03$5.85$5.8513,100
2019-12-02$5.86$5.8654,300
2019-11-29$5.98$5.9819,100
2019-11-27$5.99$5.9928,100
2019-11-26$5.98$5.9875,700
2019-11-25$5.97$5.9770,600
2019-11-22$5.75$5.7531,700
2019-11-21$5.71$5.71167,700
2019-11-20$5.55$5.5551,900
2019-11-19$5.45$5.4530,700
2019-11-18$5.14$5.1476,700
2019-11-15$5.24$5.2412,400
2019-11-14$5.18$5.1810,200
2019-11-13$5.18$5.1824,300
2019-11-12$5.20$5.2019,800
2019-11-11$5.31$5.3121,900
2019-11-08$5.22$5.2271,000
2019-11-07$5.48$5.4822,900
2019-11-06$5.64$5.6422,600
2019-11-05$5.80$5.8018,500
2019-11-04$5.75$5.7541,200
2019-11-01$5.81$5.8129,000
2019-10-31$5.72$5.7224,700
2019-10-30$5.76$5.7620,200
2019-10-29$5.76$5.7625,500
2019-10-28$5.56$5.5619,300
2019-10-25$5.57$5.5710,900
2019-10-24$5.50$5.5018,100
2019-10-23$5.43$5.4320,500
2019-10-22$5.44$5.4418,300
2019-10-21$5.45$5.4525,000
2019-10-18$5.45$5.4521,300
2019-10-17$5.45$5.4516,400
2019-10-16$5.38$5.38194,800
2019-10-15$5.65$5.6511,900
2019-10-14$5.56$5.5632,300
2019-10-11$5.63$5.6321,400
2019-10-10$5.49$5.4984,900
2019-10-09$5.36$5.3625,300
2019-10-08$5.27$5.2732,000
2019-10-07$5.16$5.1676,500
2019-10-04$4.86$4.8623,300
2019-10-03$4.91$4.9117,500
2019-10-02$4.89$4.8969,100
2019-10-01$4.97$4.9719,800
2019-09-30$5.30$5.3031,300
2019-09-27$5.29$5.2939,500
2019-09-26$5.28$5.2820,700
2019-09-25$5.26$5.2618,700
2019-09-24$5.25$5.2536,600
2019-09-23$5.37$5.3740,600
2019-09-20$5.27$5.2716,000
2019-09-19$5.37$5.3724,600
2019-09-18$5.26$5.2620,700
2019-09-17$5.38$5.3815,600
2019-09-16$5.40$5.4020,000
2019-09-13$5.46$5.4627,900
2019-09-12$5.40$5.4043,700
2019-09-11$5.18$5.1835,900
2019-09-10$4.97$4.9722,700
2019-09-09$5.05$5.0530,200
2019-09-06$5.15$5.157,900
2019-09-05$5.13$5.1360,500
2019-09-04$5.34$5.3414,500
2019-09-03$5.31$5.3136,800
2019-08-30$5.07$5.0740,100
2019-08-29$5.17$5.1734,200
2019-08-28$4.97$4.9722,100
2019-08-27$4.95$4.9526,400
2019-08-26$5.00$5.0039,200
2019-08-23$5.01$5.0134,300
2019-08-22$5.21$5.2169,900
2019-08-21$5.03$5.0330,000
2019-08-20$5.22$5.2224,200
2019-08-19$5.28$5.28108,400
2019-08-16$5.02$5.0242,800
2019-08-15$5.13$5.1327,400
2019-08-14$5.25$5.2515,400
2019-08-13$5.18$5.1863,300
2019-08-12$5.10$5.1035,000
2019-08-09$5.25$5.2592,300
2019-08-08$5.85$5.8562,900
2019-08-07$5.49$5.4928,000
2019-08-06$5.55$5.5530,900
2019-08-05$5.56$5.5641,900
2019-08-02$5.72$5.7220,100
2019-08-01$5.75$5.7542,700
2019-07-31$5.88$5.8837,600
2019-07-30$6.04$6.0427,400
2019-07-29$6.05$6.0560,400
2019-07-26$6.04$6.0459,800
2019-07-25$5.99$5.9950,800
2019-07-24$5.95$5.9537,200
2019-07-23$5.80$5.8018,700
2019-07-22$5.80$5.8035,400
2019-07-19$5.88$5.8819,500
2019-07-18$5.83$5.8322,000
2019-07-17$5.73$5.7334,300
2019-07-16$5.64$5.64102,100
2019-07-15$5.98$5.9817,400
2019-07-12$6.00$6.0059,700
2019-07-11$6.00$6.0038,100
2019-07-10$5.88$5.8861,000
2019-07-09$5.95$5.9573,700
2019-07-08$6.15$6.15118,300
2019-07-05$5.94$5.9432,100
2019-07-03$5.75$5.7523,900
2019-07-02$5.73$5.7326,400
2019-07-01$5.74$5.74122,700
2019-06-28$5.50$5.5086,200
2019-06-27$5.20$5.20269,000
2019-06-26$5.16$5.1681,600
2019-06-25$5.10$5.10159,000
2019-06-24$5.76$5.7628,700
2019-06-21$5.97$5.9728,800
2019-06-20$5.96$5.9635,600
2019-06-19$6.02$6.0244,000
2019-06-18$6.14$6.1483,200
2019-06-17$6.01$6.0194,900
2019-06-14$6.02$6.0296,300
2019-06-13$6.22$6.2294,900
2019-06-12$6.14$6.1460,200
2019-06-11$6.03$6.03119,400
2019-06-10$5.82$5.8262,300
2019-06-07$5.60$5.6067,300
2019-06-06$5.61$5.6187,900
2019-06-05$5.67$5.6747,900
2019-06-04$5.55$5.5546,400
2019-06-03$5.50$5.5021,900
2019-05-31$5.37$5.3755,600
2019-05-30$5.59$5.5952,900
2019-05-29$5.44$5.4459,600
2019-05-28$5.72$5.7241,000
2019-05-24$5.76$5.7617,700
2019-05-23$5.85$5.8518,200
2019-05-22$5.96$5.9613,600
2019-05-21$6.03$6.0313,700
2019-05-20$6.03$6.0361,300
2019-05-17$6.05$6.0538,300
2019-05-16$6.08$6.0823,600
2019-05-15$6.13$6.1336,300
2019-05-14$6.00$6.0050,000
2019-05-13$6.04$6.0471,700
2019-05-10$6.37$6.3781,800
2019-05-09$6.34$6.3438,200
2019-05-08$6.63$6.6334,200
2019-05-07$6.74$6.7430,200
2019-05-06$6.71$6.7139,400
2019-05-03$6.73$6.7340,000
2019-05-02$6.60$6.6033,300
2019-05-01$6.51$6.51103,200
2019-04-30$6.62$6.6242,500
2019-04-29$6.40$6.4081,200
2019-04-26$6.34$6.3464,200
2019-04-25$6.41$6.41163,300
2019-04-24$6.45$6.45163,700
2019-04-23$6.51$6.51114,000
2019-04-22$6.66$6.6631,800
2019-04-18$6.63$6.6357,600
2019-04-17$6.70$6.7094,500
2019-04-16$6.97$6.97119,900
2019-04-15$6.77$6.7790,700
2019-04-12$6.78$6.7884,800
2019-04-11$6.50$6.5052,300
2019-04-10$6.54$6.5448,300
2019-04-09$6.35$6.3549,100
2019-04-08$6.49$6.49174,500
2019-04-05$6.67$6.67329,300
2019-04-04$6.29$6.291,008,700
2019-04-03$5.62$5.6255,800
2019-04-02$5.54$5.5459,800
2019-04-01$5.39$5.3949,600
2019-03-29$5.33$5.3320,600
2019-03-28$5.29$5.2958,500
2019-03-27$5.35$5.3517,400
2019-03-26$5.33$5.3339,300
2019-03-25$5.23$5.2341,100
2019-03-22$5.22$5.2242,500
2019-03-21$5.21$5.2178,100
2019-03-20$5.37$5.3716,200
2019-03-19$5.36$5.3671,300
2019-03-18$5.28$5.2837,500
2019-03-15$5.21$5.2149,400
2019-03-14$5.03$5.0348,800
2019-03-13$5.03$5.0345,700
2019-03-12$4.93$4.9340,100
2019-03-11$4.90$4.9046,100
2019-03-08$4.87$4.8754,300
2019-03-07$4.77$4.7723,500
2019-03-06$4.75$4.7530,300
2019-03-05$4.77$4.7738,300
2019-03-04$4.82$4.8227,500
2019-03-01$4.84$4.8446,300
2019-02-28$4.78$4.7841,700
2019-02-27$4.94$4.947,600
2019-02-26$4.85$4.8524,400
2019-02-25$4.86$4.8635,200
2019-02-22$4.91$4.9130,100
2019-02-21$4.94$4.9422,900
2019-02-20$5.06$5.0641,100
2019-02-19$4.97$4.9734,600
2019-02-15$4.90$4.9039,700
2019-02-14$4.84$4.8434,200
2019-02-13$4.87$4.8732,200
2019-02-12$4.90$4.9038,800
2019-02-11$4.79$4.7966,400
2019-02-08$5.15$5.1598,700
2019-02-07$5.15$5.15117,300
2019-02-06$5.22$5.22175,400
2019-02-05$5.23$5.2389,700
2019-02-04$5.24$5.2465,900
2019-02-01$5.15$5.1551,200
2019-01-31$5.03$5.0351,800
2019-01-30$5.03$5.0371,500
2019-01-29$4.77$4.7733,200
2019-01-28$4.75$4.7541,600
2019-01-25$4.75$4.7546,600
2019-01-24$4.62$4.6287,000
2019-01-23$4.80$4.8045,700
2019-01-22$4.71$4.7129,800
2019-01-18$4.70$4.7044,900
2019-01-17$4.62$4.6259,700
2019-01-16$4.59$4.5940,000
2019-01-15$4.58$4.5837,600
2019-01-14$4.68$4.6832,000
2019-01-11$4.75$4.7555,400
2019-01-10$4.82$4.8224,400
2019-01-09$4.74$4.7449,600
2019-01-08$4.70$4.7023,500
2019-01-07$4.73$4.7323,100
2019-01-04$4.65$4.6555,000
2019-01-03$4.75$4.7541,400
2019-01-02$4.88$4.8865,800