NASDAQ:AMSC | Historical Stock Price | AMERICAN SUPERCONDUCTOR CORP /DE/

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
1991-12-12 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.07$8.94$26.03$75.81$220.81$643.121991-12-122026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2000

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2000-12-29$285.63$285.6331,290
2000-12-28$282.50$282.5023,460
2000-12-27$275.00$275.0068,640
2000-12-26$230.00$230.0027,370
2000-12-22$247.50$247.5054,020
2000-12-21$235.00$235.0052,520
2000-12-20$260.00$260.0043,920
2000-12-19$290.00$290.0022,730
2000-12-18$288.75$288.7528,770
2000-12-15$300.00$300.0023,920
2000-12-14$304.38$304.3822,390
2000-12-13$330.00$330.0027,670
2000-12-12$339.38$339.3817,440
2000-12-11$355.00$355.0060,230
2000-12-08$328.75$328.7541,600
2000-12-07$317.50$317.5024,730
2000-12-06$327.50$327.5029,710
2000-12-05$335.00$335.0058,610
2000-12-04$262.50$262.5041,560
2000-12-01$270.00$270.0081,340
2000-11-30$237.50$237.5054,990
2000-11-29$247.50$247.5070,830
2000-11-28$263.13$263.1338,740
2000-11-27$288.13$288.1360,430
2000-11-24$326.25$326.2521,480
2000-11-22$250.00$250.0063,830
2000-11-21$256.25$256.2568,400
2000-11-20$275.00$275.0069,080
2000-11-17$331.25$331.2543,430
2000-11-16$344.84$344.8428,060
2000-11-15$372.50$372.5028,770
2000-11-14$380.00$380.0039,300
2000-11-13$360.00$360.0063,040
2000-11-10$389.38$389.3821,950
2000-11-09$434.38$434.3818,010
2000-11-08$439.38$439.3814,100
2000-11-07$457.50$457.5015,980
2000-11-06$482.50$482.5012,000
2000-11-03$473.13$473.1316,240
2000-11-02$483.13$483.1317,670
2000-11-01$478.13$478.1318,840
2000-10-31$477.50$477.5037,350
2000-10-30$460.63$460.6335,010
2000-10-27$461.25$461.2519,830
2000-10-26$503.75$503.7539,900
2000-10-25$470.00$470.0022,120
2000-10-24$495.00$495.0029,340
2000-10-23$528.13$528.1345,650
2000-10-20$525.00$525.0023,740
2000-10-19$520.00$520.0034,090
2000-10-18$468.75$468.7529,110
2000-10-17$480.00$480.0046,000
2000-10-16$500.63$500.6344,360
2000-10-13$451.88$451.8837,530
2000-10-12$411.25$411.2541,430
2000-10-11$390.00$390.0025,070
2000-10-10$379.38$379.3823,850
2000-10-09$411.88$411.8824,980
2000-10-06$416.25$416.2519,060
2000-10-05$433.13$433.1315,670
2000-10-04$461.88$461.8825,630
2000-10-03$481.25$481.2516,740
2000-10-02$498.13$498.1313,980
2000-09-29$491.56$491.5660,000
2000-09-28$521.25$521.2524,770
2000-09-27$490.63$490.6327,290
2000-09-26$521.25$521.2533,760
2000-09-25$530.00$530.0027,110
2000-09-22$528.75$528.7540,740
2000-09-21$562.50$562.5028,620
2000-09-20$573.75$573.7563,830
2000-09-19$570.00$570.0045,930
2000-09-18$566.88$566.8831,690
2000-09-15$558.13$558.1348,080
2000-09-14$607.50$607.5075,430
2000-09-13$582.50$582.5060,830
2000-09-12$537.50$537.5052,850
2000-09-11$481.25$481.2517,690
2000-09-08$481.25$481.2520,130
2000-09-07$487.50$487.5029,810
2000-09-06$426.88$426.8811,190
2000-09-05$457.50$457.5021,260
2000-09-01$462.50$462.5023,340
2000-08-31$424.38$424.3820,280
2000-08-30$420.63$420.6325,000
2000-08-29$442.50$442.5015,490
2000-08-28$450.63$450.6318,140
2000-08-25$438.75$438.759,440
2000-08-24$436.25$436.2511,040
2000-08-23$454.38$454.3813,080
2000-08-22$458.75$458.758,930
2000-08-21$450.63$450.6315,910
2000-08-18$423.75$423.7524,100
2000-08-17$425.63$425.639,790
2000-08-16$421.25$421.2516,980
2000-08-15$407.50$407.5018,490
2000-08-14$387.50$387.5019,120
2000-08-11$410.63$410.6319,810
2000-08-10$399.22$399.2234,870
2000-08-09$394.38$394.3826,010
2000-08-08$376.88$376.8830,240
2000-08-07$355.00$355.0022,690
2000-08-04$371.25$371.2524,430
2000-08-03$355.63$355.6336,900
2000-08-02$332.50$332.5030,160
2000-08-01$345.00$345.0016,520
2000-07-31$370.00$370.0059,190
2000-07-28$325.63$325.63130,960
2000-07-27$426.25$426.2526,050
2000-07-26$441.25$441.2546,570
2000-07-25$465.00$465.0040,710
2000-07-24$528.75$528.7524,540
2000-07-21$511.25$511.2527,810
2000-07-20$522.50$522.5029,520
2000-07-19$537.50$537.5028,440
2000-07-18$544.84$544.8450,510
2000-07-17$596.88$596.8849,140
2000-07-14$582.50$582.5042,520
2000-07-13$571.25$571.2548,230
2000-07-12$538.75$538.7550,470
2000-07-11$541.25$541.2567,570
2000-07-10$505.00$505.0036,200
2000-07-07$486.25$486.2545,360
2000-07-06$480.63$480.6329,360
2000-07-05$495.00$495.0028,030
2000-07-03$466.25$466.2515,150
2000-06-30$482.50$482.5037,290
2000-06-29$468.75$468.7550,830
2000-06-28$501.25$501.2570,220
2000-06-27$445.63$445.6344,580
2000-06-26$450.00$450.0055,150
2000-06-23$402.50$402.5015,110
2000-06-22$405.63$405.6330,170
2000-06-21$411.88$411.8816,260
2000-06-20$415.00$415.0048,030
2000-06-19$398.75$398.7546,370
2000-06-16$392.50$392.5027,260
2000-06-15$409.38$409.3834,690
2000-06-14$440.00$440.0025,000
2000-06-13$426.88$426.8845,600
2000-06-12$437.50$437.5050,680
2000-06-09$460.00$460.0057,270
2000-06-08$427.50$427.50153,520
2000-06-07$366.88$366.8832,040
2000-06-06$355.63$355.6356,290
2000-06-05$319.38$319.3842,230
2000-06-02$298.13$298.1336,450
2000-06-01$287.50$287.5063,550
2000-05-31$265.00$265.0032,690
2000-05-30$279.38$279.3830,990
2000-05-26$251.25$251.256,090
2000-05-25$255.00$255.0014,630
2000-05-24$261.25$261.2547,190
2000-05-23$285.00$285.0015,510
2000-05-22$283.75$283.7524,370
2000-05-19$290.63$290.6319,040
2000-05-18$298.13$298.1310,500
2000-05-17$314.38$314.3841,650
2000-05-16$323.75$323.7531,470
2000-05-15$336.25$336.2530,940
2000-05-12$296.25$296.2543,650
2000-05-11$296.25$296.2542,950
2000-05-10$256.25$256.2542,600
2000-05-09$297.50$297.5019,590
2000-05-08$307.50$307.5014,160
2000-05-05$334.38$334.3815,000
2000-05-04$322.50$322.5032,690
2000-05-03$325.00$325.0038,270
2000-05-02$375.63$375.6337,250
2000-05-01$393.75$393.7527,590
2000-04-28$381.88$381.8831,380
2000-04-27$373.75$373.7541,610
2000-04-26$343.13$343.1349,770
2000-04-25$341.25$341.2557,110
2000-04-24$287.50$287.5047,070
2000-04-20$266.25$266.2527,400
2000-04-19$259.22$259.2238,000
2000-04-18$262.50$262.5070,730
2000-04-17$217.50$217.50137,790
2000-04-14$220.00$220.0094,570
2000-04-13$290.00$290.0088,730
2000-04-12$266.25$266.25109,880
2000-04-11$256.25$256.2596,570
2000-04-10$316.88$316.8826,190
2000-04-07$347.50$347.5045,690
2000-04-06$335.63$335.6340,570
2000-04-05$321.25$321.2556,730
2000-04-04$325.00$325.00104,320
2000-04-03$365.00$365.0040,420
2000-03-31$445.00$445.0020,660
2000-03-30$432.50$432.5020,960
2000-03-29$449.38$449.3832,220
2000-03-28$466.25$466.2532,830
2000-03-27$518.75$518.7531,600
2000-03-24$486.25$486.2536,530
2000-03-23$500.00$500.0056,850
2000-03-22$522.50$522.5091,880
2000-03-21$422.50$422.5064,960
2000-03-20$398.75$398.7569,840
2000-03-17$443.75$443.7535,200
2000-03-16$411.88$411.8884,750
2000-03-15$366.25$366.2568,270
2000-03-14$413.75$413.7559,550
2000-03-13$440.63$440.6368,770
2000-03-10$455.00$455.0075,540
2000-03-09$483.13$483.1359,920
2000-03-08$475.00$475.0059,510
2000-03-07$500.31$500.31110,160
2000-03-06$571.25$571.2562,880
2000-03-03$630.00$630.0040,210
2000-03-02$660.00$660.00103,350
2000-03-01$628.13$628.13231,650
2000-02-29$690.63$690.63107,730
2000-02-28$692.50$692.50162,400
2000-02-25$623.75$623.75103,960
2000-02-24$588.75$588.75118,480
2000-02-23$612.50$612.50135,840
2000-02-22$495.00$495.0051,260
2000-02-18$433.75$433.7544,440
2000-02-17$428.75$428.7587,320
2000-02-16$363.13$363.1375,040
2000-02-15$321.25$321.255,780
2000-02-14$320.63$320.635,730
2000-02-11$320.63$320.639,600
2000-02-10$328.75$328.7516,370
2000-02-09$313.13$313.1329,180
2000-02-08$300.00$300.0018,810
2000-02-07$277.50$277.504,310
2000-02-04$276.25$276.254,580
2000-02-03$280.00$280.009,830
2000-02-02$271.25$271.259,270
2000-02-01$271.25$271.259,060
2000-01-31$266.25$266.2511,240
2000-01-28$270.00$270.0027,070
2000-01-27$300.00$300.0011,300
2000-01-26$315.00$315.0026,520
2000-01-25$300.00$300.0019,880
2000-01-24$319.38$319.3833,830
2000-01-21$347.50$347.5037,000
2000-01-20$313.75$313.7517,430
2000-01-19$306.25$306.2519,370
2000-01-18$288.13$288.134,350
2000-01-14$283.75$283.7510,060
2000-01-13$295.00$295.0024,300
2000-01-12$258.75$258.7514,970
2000-01-11$278.13$278.1313,120
2000-01-10$285.00$285.0012,550
2000-01-07$287.50$287.508,520
2000-01-06$278.13$278.136,550
2000-01-05$278.13$278.1324,070
2000-01-04$280.00$280.0015,610
2000-01-03$295.63$295.6349,040