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 — 2022

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2022-12-30$7.60$7.6062,300
2022-12-29$7.97$7.9768,100
2022-12-28$7.54$7.5439,700
2022-12-27$7.58$7.5845,900
2022-12-23$7.85$7.858,700
2022-12-22$7.80$7.8023,000
2022-12-21$8.08$8.0818,000
2022-12-20$7.97$7.9764,900
2022-12-19$7.87$7.8741,200
2022-12-16$8.01$8.0134,000
2022-12-15$8.44$8.4431,300
2022-12-14$8.03$8.0391,200
2022-12-13$7.97$7.9788,900
2022-12-12$8.05$8.0582,100
2022-12-09$8.65$8.6554,200
2022-12-08$8.81$8.8126,600
2022-12-07$8.65$8.6534,600
2022-12-06$8.65$8.6537,400
2022-12-05$8.93$8.9352,700
2022-12-02$9.22$9.2256,500
2022-12-01$9.27$9.27146,500
2022-11-30$10.94$10.9472,900
2022-11-29$11.05$11.0530,800
2022-11-28$10.89$10.8924,600
2022-11-25$10.82$10.827,300
2022-11-23$10.72$10.7222,000
2022-11-22$10.53$10.5351,400
2022-11-21$10.43$10.4342,600
2022-11-18$10.60$10.6033,100
2022-11-17$10.33$10.334,000
2022-11-16$10.15$10.1516,000
2022-11-15$10.15$10.1533,700
2022-11-14$10.40$10.4012,300
2022-11-11$10.39$10.3933,600
2022-11-10$9.48$9.4885,200
2022-11-09$9.46$9.4629,200
2022-11-08$9.52$9.5222,000
2022-11-07$9.34$9.3412,000
2022-11-04$9.21$9.219,000
2022-11-03$8.65$8.659,200
2022-11-02$9.01$9.0137,500
2022-11-01$9.10$9.103,200
2022-10-31$9.22$9.2220,600
2022-10-28$8.63$8.639,300
2022-10-27$8.79$8.7926,100
2022-10-26$9.04$9.049,300
2022-10-25$8.68$8.6843,500
2022-10-24$8.86$8.8627,500
2022-10-21$8.82$8.8218,700
2022-10-20$8.66$8.6610,000
2022-10-19$8.63$8.6310,600
2022-10-18$8.59$8.5913,500
2022-10-17$8.31$8.3114,700
2022-10-14$8.48$8.4814,900
2022-10-13$8.98$8.988,800
2022-10-12$8.78$8.7812,100
2022-10-11$8.50$8.5016,000
2022-10-10$8.76$8.7631,700
2022-10-07$9.40$9.4015,400
2022-10-06$9.65$9.6513,200
2022-10-05$9.52$9.5210,000
2022-10-04$9.44$9.4440,600
2022-10-03$8.64$8.6421,300
2022-09-30$8.50$8.5028,400
2022-09-29$8.20$8.2059,000
2022-09-28$9.11$9.1129,000
2022-09-27$8.97$8.979,800
2022-09-26$8.97$8.9727,600
2022-09-23$9.24$9.2451,000
2022-09-22$9.66$9.6644,800
2022-09-21$10.16$10.168,300
2022-09-20$10.13$10.1313,100
2022-09-19$10.01$10.0123,000
2022-09-16$10.19$10.1950,800
2022-09-15$10.70$10.707,800
2022-09-14$10.63$10.6335,800
2022-09-13$10.27$10.2715,200
2022-09-12$10.65$10.6526,300
2022-09-09$11.17$11.1737,100
2022-09-08$11.06$11.0619,500
2022-09-07$11.12$11.1221,800
2022-09-06$10.74$10.7429,900
2022-09-02$10.70$10.7021,900
2022-09-01$10.90$10.9045,700
2022-08-31$11.10$11.1015,100
2022-08-30$11.52$11.5214,500
2022-08-29$11.98$11.9863,800
2022-08-26$11.77$11.7779,000
2022-08-25$12.60$12.6036,100
2022-08-24$12.09$12.09158,500
2022-08-23$12.93$12.93227,700
2022-08-22$12.84$12.84152,500
2022-08-19$12.00$12.00165,000
2022-08-18$11.17$11.17120,300
2022-08-17$10.27$10.2730,800
2022-08-16$10.11$10.1167,100
2022-08-15$9.13$9.1326,800
2022-08-12$9.09$9.0916,200
2022-08-11$8.65$8.6549,300
2022-08-10$8.70$8.7036,700
2022-08-09$8.07$8.0716,300
2022-08-08$8.25$8.2535,100
2022-08-05$8.30$8.3024,400
2022-08-04$8.15$8.1525,500
2022-08-03$8.25$8.2546,800
2022-08-02$7.74$7.7457,200
2022-08-01$7.56$7.5617,700
2022-07-29$7.82$7.8223,000
2022-07-28$7.54$7.5428,300
2022-07-27$7.47$7.4715,100
2022-07-26$7.17$7.1746,100
2022-07-25$7.58$7.586,900
2022-07-22$7.61$7.617,900
2022-07-21$7.70$7.7012,100
2022-07-20$7.60$7.6017,400
2022-07-19$7.64$7.6418,200
2022-07-18$7.14$7.1416,600
2022-07-15$6.87$6.878,500
2022-07-14$6.93$6.9329,700
2022-07-13$6.91$6.9126,800
2022-07-12$7.05$7.0533,600
2022-07-11$7.15$7.1541,700
2022-07-08$7.26$7.2639,100
2022-07-07$7.25$7.2523,500
2022-07-06$7.24$7.2455,700
2022-07-05$7.15$7.1524,000
2022-07-01$7.29$7.2946,500
2022-06-30$7.30$7.3025,300
2022-06-29$7.25$7.2537,700
2022-06-28$7.42$7.4219,900
2022-06-27$7.66$7.6629,700
2022-06-24$7.71$7.7128,300
2022-06-23$7.40$7.4015,400
2022-06-22$7.50$7.5026,300
2022-06-21$7.57$7.5720,200
2022-06-17$7.49$7.4932,700
2022-06-16$7.25$7.2527,500
2022-06-15$7.72$7.7218,200
2022-06-14$7.56$7.5633,500
2022-06-13$7.82$7.8233,200
2022-06-10$8.52$8.5234,600
2022-06-09$8.80$8.8013,500
2022-06-08$9.09$9.0926,600
2022-06-07$9.02$9.0224,600
2022-06-06$8.81$8.8117,000
2022-06-03$8.72$8.727,300
2022-06-02$8.77$8.7734,700
2022-06-01$8.72$8.7219,600
2022-05-31$9.01$9.0115,000
2022-05-27$8.80$8.8015,000
2022-05-26$8.44$8.4426,900
2022-05-25$8.04$8.047,800
2022-05-24$7.92$7.9214,900
2022-05-23$8.08$8.089,000
2022-05-20$8.05$8.0540,900
2022-05-19$8.54$8.5434,800
2022-05-18$8.09$8.0949,300
2022-05-17$8.08$8.0828,800
2022-05-16$7.91$7.9178,700
2022-05-13$8.18$8.1842,200
2022-05-12$7.25$7.25180,100
2022-05-11$7.69$7.69157,400
2022-05-10$8.12$8.1251,600
2022-05-09$8.10$8.1033,800
2022-05-06$8.52$8.5257,000
2022-05-05$8.82$8.8235,000
2022-05-04$9.48$9.4823,200
2022-05-03$9.13$9.1340,200
2022-05-02$9.24$9.2425,100
2022-04-29$9.11$9.1140,300
2022-04-28$9.43$9.4332,400
2022-04-27$8.97$8.9773,900
2022-04-26$9.44$9.4434,400
2022-04-25$9.50$9.5064,900
2022-04-22$9.53$9.5324,600
2022-04-21$9.51$9.5124,000
2022-04-20$9.52$9.5229,800
2022-04-19$9.50$9.5020,000
2022-04-18$9.40$9.4033,300
2022-04-14$9.45$9.4535,100
2022-04-13$9.51$9.5128,700
2022-04-12$9.52$9.5225,300
2022-04-11$9.56$9.5629,200
2022-04-08$9.67$9.6772,900
2022-04-07$9.98$9.9825,800
2022-04-06$9.93$9.9354,900
2022-04-05$9.90$9.9077,600
2022-04-04$10.19$10.1943,700
2022-04-01$10.04$10.0439,800
2022-03-31$10.06$10.0685,600
2022-03-30$10.21$10.2142,800
2022-03-29$10.52$10.5275,500
2022-03-28$10.60$10.6066,600
2022-03-25$10.80$10.8020,200
2022-03-24$10.96$10.9613,700
2022-03-23$10.65$10.6534,200
2022-03-22$10.90$10.90116,400
2022-03-21$10.88$10.8875,700
2022-03-18$10.81$10.8164,200
2022-03-17$10.50$10.5015,200
2022-03-16$10.34$10.3440,100
2022-03-15$10.10$10.1018,900
2022-03-14$10.23$10.2391,800
2022-03-11$10.10$10.1030,700
2022-03-10$10.39$10.3931,500
2022-03-09$10.39$10.3913,400
2022-03-08$10.14$10.1456,500
2022-03-07$9.74$9.74130,300
2022-03-04$10.02$10.0238,300
2022-03-03$10.02$10.0216,500
2022-03-02$10.22$10.2231,600
2022-03-01$9.89$9.8972,900
2022-02-28$10.40$10.4036,600
2022-02-25$10.49$10.49124,200
2022-02-24$9.74$9.7489,600
2022-02-23$9.52$9.52109,400
2022-02-22$9.84$9.8499,800
2022-02-18$9.88$9.8882,600
2022-02-17$9.83$9.83127,800
2022-02-16$9.64$9.64136,500
2022-02-15$8.99$8.99111,300
2022-02-14$8.38$8.3840,200
2022-02-11$8.46$8.4660,800
2022-02-10$9.09$9.0938,400
2022-02-09$9.44$9.44138,500
2022-02-08$8.73$8.7311,100
2022-02-07$8.43$8.4322,700
2022-02-04$8.55$8.5522,900
2022-02-03$8.34$8.3426,700
2022-02-02$8.70$8.7031,300
2022-02-01$8.92$8.9256,100
2022-01-31$8.98$8.9859,400
2022-01-28$8.32$8.3277,400
2022-01-27$8.07$8.0749,300
2022-01-26$8.54$8.5454,600
2022-01-25$8.51$8.5168,600
2022-01-24$8.58$8.5853,200
2022-01-21$8.36$8.3661,800
2022-01-20$8.36$8.3649,800
2022-01-19$8.42$8.4272,800
2022-01-18$8.87$8.8779,400
2022-01-14$9.43$9.4347,300
2022-01-13$9.16$9.1640,200
2022-01-12$9.38$9.3817,900
2022-01-11$9.33$9.3325,700
2022-01-10$9.29$9.2960,700
2022-01-07$9.04$9.0451,800
2022-01-06$9.34$9.3471,700
2022-01-05$9.00$9.0053,400
2022-01-04$9.34$9.3480,800
2022-01-03$9.77$9.7741,700