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 — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$122.60$122.6018,280
2001-12-28$122.90$122.908,600
2001-12-27$121.00$121.0013,260
2001-12-26$123.40$123.409,920
2001-12-24$120.00$120.007,010
2001-12-21$120.70$120.7017,920
2001-12-20$110.50$110.5015,800
2001-12-19$115.50$115.5016,140
2001-12-18$119.70$119.709,760
2001-12-17$118.40$118.409,570
2001-12-14$119.90$119.908,320
2001-12-13$121.20$121.2015,410
2001-12-12$123.00$123.0015,890
2001-12-11$123.00$123.007,700
2001-12-10$125.60$125.609,860
2001-12-07$130.00$130.0011,660
2001-12-06$130.00$130.008,030
2001-12-05$129.50$129.5018,690
2001-12-04$131.80$131.8012,220
2001-12-03$129.30$129.3012,100
2001-11-30$136.20$136.2012,540
2001-11-29$140.00$140.0013,220
2001-11-28$131.50$131.5017,130
2001-11-27$130.30$130.3012,620
2001-11-26$120.70$120.705,050
2001-11-23$122.00$122.002,160
2001-11-21$119.50$119.504,570
2001-11-20$117.50$117.505,810
2001-11-19$127.50$127.507,770
2001-11-16$122.50$122.507,000
2001-11-15$121.10$121.1013,340
2001-11-14$125.10$125.1010,850
2001-11-13$117.10$117.105,570
2001-11-12$111.70$111.706,060
2001-11-09$109.00$109.0010,400
2001-11-08$110.30$110.3015,690
2001-11-07$111.20$111.205,310
2001-11-06$109.20$109.205,720
2001-11-05$106.00$106.008,940
2001-11-02$107.40$107.404,150
2001-11-01$114.10$114.108,160
2001-10-31$106.60$106.6020,270
2001-10-30$102.90$102.9041,640
2001-10-29$118.00$118.0013,580
2001-10-26$133.30$133.3010,450
2001-10-25$130.00$130.006,110
2001-10-24$129.40$129.405,090
2001-10-23$132.00$132.007,780
2001-10-22$129.90$129.9011,040
2001-10-19$123.50$123.509,640
2001-10-18$122.10$122.1013,380
2001-10-17$119.40$119.4017,090
2001-10-16$130.50$130.5055,280
2001-10-15$107.90$107.9011,160
2001-10-12$112.50$112.5028,510
2001-10-11$114.10$114.1024,350
2001-10-10$100.70$100.7020,360
2001-10-09$91.70$91.7013,130
2001-10-08$90.40$90.4013,680
2001-10-05$91.60$91.608,880
2001-10-04$97.90$97.9011,410
2001-10-03$94.00$94.0014,460
2001-10-02$92.00$92.008,200
2001-10-01$89.50$89.507,970
2001-09-28$93.40$93.4012,960
2001-09-27$91.00$91.0026,440
2001-09-26$95.50$95.5028,920
2001-09-25$93.00$93.0016,060
2001-09-24$90.60$90.6033,500
2001-09-21$85.90$85.9060,040
2001-09-20$88.50$88.5017,390
2001-09-19$95.20$95.2027,200
2001-09-18$105.00$105.0022,050
2001-09-17$105.00$105.0020,870
2001-09-10$125.80$125.8026,410
2001-09-07$112.90$112.9012,570
2001-09-06$113.00$113.0016,090
2001-09-05$126.60$126.6011,310
2001-09-04$124.60$124.606,640
2001-08-31$130.00$130.003,840
2001-08-30$128.70$128.7014,150
2001-08-29$137.20$137.2010,510
2001-08-28$131.00$131.0012,710
2001-08-27$140.20$140.2022,310
2001-08-24$125.50$125.5030,270
2001-08-23$110.60$110.6018,400
2001-08-22$120.50$120.5017,820
2001-08-21$117.20$117.2016,300
2001-08-20$127.50$127.5017,640
2001-08-17$134.10$134.1025,930
2001-08-16$142.60$142.6010,500
2001-08-15$144.90$144.9013,390
2001-08-14$156.60$156.6013,140
2001-08-13$151.40$151.4010,350
2001-08-10$152.50$152.5010,620
2001-08-09$157.10$157.107,630
2001-08-08$158.70$158.705,560
2001-08-07$169.50$169.508,320
2001-08-06$172.90$172.907,880
2001-08-03$176.60$176.604,440
2001-08-02$171.00$171.008,220
2001-08-01$168.20$168.2010,560
2001-07-31$170.10$170.1022,560
2001-07-30$175.20$175.2012,370
2001-07-27$176.90$176.907,320
2001-07-26$177.30$177.305,080
2001-07-25$181.40$181.4017,290
2001-07-24$177.00$177.0010,500
2001-07-23$177.80$177.8016,760
2001-07-20$190.00$190.006,130
2001-07-19$193.40$193.4012,510
2001-07-18$188.60$188.6015,050
2001-07-17$203.50$203.506,450
2001-07-16$199.90$199.909,420
2001-07-13$200.40$200.4024,360
2001-07-12$198.00$198.0025,390
2001-07-11$187.50$187.5021,550
2001-07-10$196.20$196.2015,440
2001-07-09$215.10$215.104,200
2001-07-06$212.00$212.009,630
2001-07-05$225.00$225.006,250
2001-07-03$231.20$231.206,050
2001-07-02$233.60$233.6014,740
2001-06-29$258.00$258.0013,130
2001-06-28$228.50$228.5022,240
2001-06-27$219.10$219.1018,500
2001-06-26$216.90$216.9010,400
2001-06-25$208.00$208.008,390
2001-06-22$212.60$212.6019,590
2001-06-21$205.90$205.9014,160
2001-06-20$192.20$192.2023,150
2001-06-19$199.90$199.9016,580
2001-06-18$210.80$210.8027,190
2001-06-15$225.50$225.5027,970
2001-06-14$216.20$216.2023,170
2001-06-13$231.00$231.0021,550
2001-06-12$239.60$239.6035,330
2001-06-11$254.40$254.4017,370
2001-06-08$266.50$266.5016,930
2001-06-07$274.90$274.9026,030
2001-06-06$263.90$263.9011,330
2001-06-05$265.80$265.8021,470
2001-06-04$267.30$267.3025,330
2001-06-01$257.30$257.3024,230
2001-05-31$259.60$259.6027,470
2001-05-30$243.90$243.9076,570
2001-05-29$256.60$256.6057,600
2001-05-25$247.20$247.2018,980
2001-05-24$244.70$244.7017,710
2001-05-23$240.10$240.1022,350
2001-05-22$250.00$250.0033,480
2001-05-21$251.50$251.5084,540
2001-05-18$252.40$252.40128,170
2001-05-17$213.00$213.0061,510
2001-05-16$189.50$189.5024,050
2001-05-15$191.40$191.4019,680
2001-05-14$196.10$196.1026,920
2001-05-11$192.00$192.0022,910
2001-05-10$185.50$185.5016,280
2001-05-09$190.90$190.9023,870
2001-05-08$189.00$189.0036,640
2001-05-07$190.10$190.1085,670
2001-05-04$150.00$150.0013,520
2001-05-03$154.00$154.008,690
2001-05-02$159.30$159.3013,420
2001-05-01$157.30$157.3020,930
2001-04-30$156.00$156.0037,810
2001-04-27$151.90$151.9014,340
2001-04-26$136.30$136.3029,020
2001-04-25$129.00$129.0038,680
2001-04-24$128.30$128.3014,610
2001-04-23$138.00$138.008,920
2001-04-20$147.00$147.0014,710
2001-04-19$146.20$146.209,760
2001-04-18$147.20$147.2017,810
2001-04-17$133.10$133.109,830
2001-04-16$135.30$135.306,720
2001-04-12$140.30$140.3013,210
2001-04-11$128.30$128.3019,390
2001-04-10$124.00$124.0022,370
2001-04-09$118.00$118.0024,670
2001-04-06$112.50$112.5014,250
2001-04-05$119.38$119.3819,600
2001-04-04$113.13$113.1337,460
2001-04-03$110.63$110.6361,200
2001-04-02$122.50$122.50103,980
2001-03-30$160.63$160.6316,750
2001-03-29$151.88$151.8820,000
2001-03-28$151.25$151.2514,230
2001-03-27$155.63$155.639,080
2001-03-26$155.63$155.6335,550
2001-03-23$155.00$155.0020,520
2001-03-22$145.00$145.0034,280
2001-03-21$139.22$139.2225,900
2001-03-20$151.72$151.7227,660
2001-03-19$153.13$153.1313,310
2001-03-16$142.50$142.5021,310
2001-03-15$153.75$153.7520,500
2001-03-14$153.13$153.1332,780
2001-03-13$161.88$161.8824,320
2001-03-12$153.75$153.7524,620
2001-03-09$163.13$163.1322,340
2001-03-08$166.25$166.2516,010
2001-03-07$168.13$168.1310,170
2001-03-06$176.25$176.2517,670
2001-03-05$181.25$181.2522,420
2001-03-02$176.88$176.8815,890
2001-03-01$170.63$170.6318,140
2001-02-28$169.38$169.3825,220
2001-02-27$180.63$180.6314,270
2001-02-26$192.50$192.5019,180
2001-02-23$187.50$187.5021,800
2001-02-22$183.75$183.7539,460
2001-02-21$184.38$184.3839,100
2001-02-20$187.50$187.5033,460
2001-02-16$189.38$189.3823,510
2001-02-15$202.50$202.5034,800
2001-02-14$198.13$198.1330,260
2001-02-13$180.63$180.6337,470
2001-02-12$191.25$191.2547,020
2001-02-09$166.25$166.2526,040
2001-02-08$175.00$175.0027,440
2001-02-07$167.50$167.5057,230
2001-02-06$164.38$164.3879,640
2001-02-05$170.63$170.6363,180
2001-02-02$183.75$183.7538,730
2001-02-01$200.00$200.0027,050
2001-01-31$206.88$206.8854,620
2001-01-30$213.13$213.1336,730
2001-01-29$213.13$213.1376,060
2001-01-26$198.13$198.13106,170
2001-01-25$195.63$195.63128,190
2001-01-24$201.88$201.88310,490
2001-01-23$231.88$231.88508,880
2001-01-22$328.13$328.1341,780
2001-01-19$316.88$316.8831,200
2001-01-18$347.50$347.5034,380
2001-01-17$343.75$343.7578,270
2001-01-16$293.13$293.1322,570
2001-01-12$276.25$276.2532,930
2001-01-11$280.00$280.0028,870
2001-01-10$267.50$267.5021,450
2001-01-09$238.75$238.7545,790
2001-01-08$211.88$211.8837,030
2001-01-05$220.00$220.0024,870
2001-01-04$233.75$233.7559,580
2001-01-03$247.50$247.5072,120
2001-01-02$236.88$236.8848,530