NASDAQ:CLIR | Historical Stock Price | ClearSign Technologies Corp

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
2012-04-25 to 2026-09-04
Data captured

Stock Price Chart

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

$3.20$6.64$13.75$28.50$59.07$122.432012-04-252026-08-27

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

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Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$29.30$29.307,950
2020-12-30$29.60$29.6036,110
2020-12-29$32.10$32.1014,450
2020-12-28$31.60$31.6019,550
2020-12-24$33.50$33.5034,760
2020-12-23$32.80$32.8043,890
2020-12-22$31.70$31.7035,490
2020-12-21$31.50$31.5042,310
2020-12-18$28.50$28.5048,540
2020-12-17$29.90$29.90234,120
2020-12-16$29.00$29.0020,180
2020-12-15$27.40$27.4010,000
2020-12-14$26.20$26.2013,370
2020-12-11$27.40$27.4011,920
2020-12-10$27.50$27.5013,680
2020-12-09$26.50$26.5028,320
2020-12-08$28.20$28.2022,260
2020-12-07$26.90$26.9018,850
2020-12-04$27.50$27.5018,200
2020-12-03$28.10$28.1063,480
2020-12-02$25.80$25.804,940
2020-12-01$25.40$25.4015,830
2020-11-30$25.60$25.6010,640
2020-11-27$26.20$26.2017,320
2020-11-25$25.60$25.6015,540
2020-11-24$26.80$26.8069,600
2020-11-23$23.10$23.109,820
2020-11-20$23.20$23.2012,790
2020-11-19$23.80$23.8010,910
2020-11-18$23.30$23.3018,640
2020-11-17$23.80$23.804,700
2020-11-16$23.40$23.404,750
2020-11-13$23.40$23.406,170
2020-11-12$23.80$23.804,590
2020-11-11$23.30$23.3012,180
2020-11-10$23.00$23.004,690
2020-11-09$23.20$23.202,080
2020-11-06$23.20$23.208,100
2020-11-05$23.30$23.302,420
2020-11-04$23.70$23.701,210
2020-11-03$23.50$23.503,240
2020-11-02$22.30$22.304,410
2020-10-30$22.40$22.406,710
2020-10-29$23.40$23.404,790
2020-10-28$23.70$23.7010,600
2020-10-27$25.00$25.003,730
2020-10-26$25.20$25.204,900
2020-10-23$25.70$25.7014,360
2020-10-22$24.80$24.805,080
2020-10-21$24.40$24.402,900
2020-10-20$23.80$23.806,560
2020-10-19$24.30$24.305,020
2020-10-16$25.10$25.104,320
2020-10-15$24.90$24.9011,800
2020-10-14$25.40$25.4012,680
2020-10-13$27.20$27.2045,720
2020-10-12$26.50$26.5040,600
2020-10-09$28.70$28.7068,230
2020-10-08$25.90$25.90110,340
2020-10-07$26.10$26.1025,540
2020-10-06$24.50$24.5010,130
2020-10-05$24.50$24.505,050
2020-10-02$24.80$24.8010,130
2020-10-01$25.00$25.0019,710
2020-09-30$22.60$22.606,420
2020-09-29$22.50$22.504,570
2020-09-28$22.20$22.207,440
2020-09-25$21.90$21.9010,680
2020-09-24$22.10$22.104,530
2020-09-23$22.70$22.7024,550
2020-09-22$22.50$22.507,050
2020-09-21$22.50$22.509,470
2020-09-18$24.30$24.307,830
2020-09-17$24.60$24.6010,120
2020-09-16$24.60$24.6034,550
2020-09-15$25.10$25.1045,170
2020-09-14$23.10$23.109,530
2020-09-11$22.70$22.707,320
2020-09-10$21.80$21.806,100
2020-09-09$22.70$22.7010,490
2020-09-08$21.70$21.7014,090
2020-09-04$22.00$22.0027,020
2020-09-03$23.00$23.0025,220
2020-09-02$22.70$22.7019,350
2020-09-01$22.30$22.3028,620
2020-08-31$22.90$22.9024,390
2020-08-28$22.90$22.9012,230
2020-08-27$23.00$23.0014,530
2020-08-26$23.50$23.5018,390
2020-08-25$22.90$22.9011,690
2020-08-24$22.20$22.2012,970
2020-08-21$22.80$22.8017,480
2020-08-20$24.50$24.5081,310
2020-08-19$23.20$23.2014,570
2020-08-18$23.00$23.008,970
2020-08-17$23.60$23.6011,830
2020-08-14$23.50$23.5014,760
2020-08-13$24.60$24.6034,640
2020-08-12$22.90$22.9022,950
2020-08-11$23.70$23.7010,760
2020-08-10$24.60$24.6014,330
2020-08-07$22.80$22.8015,400
2020-08-06$25.90$25.9022,300
2020-08-05$27.10$27.1061,130
2020-08-04$28.70$28.7072,090
2020-08-03$24.50$24.5025,560
2020-07-31$22.60$22.6014,270
2020-07-30$21.80$21.8015,380
2020-07-29$21.40$21.408,810
2020-07-28$21.00$21.0013,180
2020-07-27$21.20$21.2010,690
2020-07-24$21.60$21.609,750
2020-07-23$22.50$22.5033,930
2020-07-22$24.70$24.7028,160
2020-07-21$24.20$24.2079,840
2020-07-20$22.50$22.5018,320
2020-07-17$22.50$22.5019,300
2020-07-16$21.10$21.1018,380
2020-07-15$20.90$20.9024,460
2020-07-14$21.10$21.1021,990
2020-07-13$21.70$21.7019,210
2020-07-10$20.80$20.8022,860
2020-07-09$21.50$21.5021,050
2020-07-08$21.90$21.9081,400
2020-07-07$21.40$21.4028,330
2020-07-06$23.20$23.2035,040
2020-07-02$23.60$23.6075,020
2020-07-01$22.00$22.0091,250
2020-06-30$20.80$20.8050,470
2020-06-29$20.10$20.1041,420
2020-06-26$19.80$19.8077,840
2020-06-25$19.50$19.5080,650
2020-06-24$18.90$18.9097,400
2020-06-23$18.90$18.90119,620
2020-06-22$20.40$20.40117,790
2020-06-19$22.30$22.30215,820
2020-06-18$22.20$22.20748,090
2020-06-17$25.50$25.506,241,150
2020-06-16$23.70$23.7022,706,670
2020-06-15$7.90$7.90330,700
2020-06-12$8.50$8.5010,920
2020-06-11$7.90$7.904,210
2020-06-10$8.10$8.102,480
2020-06-09$8.20$8.204,790
2020-06-08$8.50$8.5027,200
2020-06-05$7.40$7.4014,100
2020-06-04$7.10$7.1025,000
2020-06-03$6.80$6.8061,930
2020-06-02$5.60$5.6066,690
2020-06-01$5.60$5.6035,450
2020-05-29$5.20$5.2016,930
2020-05-28$5.50$5.5035,910
2020-05-27$5.00$5.0024,300
2020-05-26$5.10$5.1076,680
2020-05-22$5.70$5.7047,620
2020-05-21$6.20$6.2027,590
2020-05-20$6.40$6.4063,130
2020-05-19$4.90$4.9099,740
2020-05-18$5.40$5.4011,420
2020-05-15$5.50$5.5013,030
2020-05-14$6.00$6.0044,500
2020-05-13$5.70$5.7010,730
2020-05-12$5.50$5.5013,860
2020-05-11$5.90$5.9015,420
2020-05-08$6.30$6.3010,180
2020-05-07$7.00$7.005,130
2020-05-06$7.00$7.007,910
2020-05-05$7.60$7.601,930
2020-05-04$7.80$7.804,840
2020-05-01$8.40$8.406,970
2020-04-30$9.00$9.007,310
2020-04-29$9.70$9.707,360
2020-04-28$9.20$9.209,550
2020-04-27$7.70$7.705,300
2020-04-24$7.60$7.602,400
2020-04-23$8.00$8.001,210
2020-04-22$8.00$8.002,010
2020-04-21$7.90$7.901,040
2020-04-20$8.50$8.504,950
2020-04-17$8.60$8.602,140
2020-04-16$9.10$9.107,150
2020-04-15$8.70$8.707,450
2020-04-14$7.90$7.9015,540
2020-04-13$7.80$7.804,920
2020-04-09$7.50$7.505,040
2020-04-08$6.90$6.9014,860
2020-04-07$6.50$6.508,360
2020-04-06$5.30$5.301,920
2020-04-03$5.60$5.604,630
2020-04-02$6.90$6.901,450
2020-04-01$7.20$7.204,160
2020-03-31$7.20$7.201,310
2020-03-30$6.40$6.401,000
2020-03-27$7.10$7.101,610
2020-03-26$7.90$7.904,220
2020-03-25$8.10$8.1029,910
2020-03-24$4.00$4.004,060
2020-03-23$4.00$4.004,720
2020-03-20$3.90$3.9010,040
2020-03-19$4.20$4.209,390
2020-03-18$4.10$4.105,880
2020-03-17$4.90$4.906,740
2020-03-16$5.30$5.3032,210
2020-03-13$6.50$6.5037,910
2020-03-12$6.90$6.908,960
2020-03-11$7.20$7.206,100
2020-03-10$7.10$7.10910
2020-03-09$7.00$7.001,770
2020-03-06$7.80$7.805,120
2020-03-05$7.80$7.802,430
2020-03-04$8.00$8.009,440
2020-03-03$7.80$7.801,940
2020-03-02$7.30$7.302,620
2020-02-28$6.80$6.805,390
2020-02-27$7.10$7.108,760
2020-02-26$8.00$8.00770
2020-02-25$7.50$7.504,920
2020-02-24$8.20$8.201,020
2020-02-21$8.40$8.402,700
2020-02-20$8.50$8.507,170
2020-02-19$7.80$7.805,550
2020-02-18$7.70$7.702,720
2020-02-14$8.20$8.203,750
2020-02-13$8.40$8.4024,160
2020-02-12$9.40$9.405,560
2020-02-11$9.60$9.601,220
2020-02-10$9.70$9.701,940
2020-02-07$10.10$10.108,470
2020-02-06$9.50$9.504,570
2020-02-05$10.00$10.005,060
2020-02-04$9.90$9.902,340
2020-02-03$9.40$9.405,520
2020-01-31$10.00$10.009,370
2020-01-30$10.20$10.202,640
2020-01-29$9.60$9.60960
2020-01-28$10.30$10.30350
2020-01-27$9.90$9.902,780
2020-01-24$10.30$10.305,060
2020-01-23$10.30$10.304,500
2020-01-22$10.90$10.9014,940
2020-01-21$10.10$10.10580
2020-01-17$10.00$10.003,050
2020-01-16$10.00$10.002,440
2020-01-15$9.50$9.503,810
2020-01-14$10.10$10.1010,340
2020-01-13$9.90$9.903,740
2020-01-10$9.30$9.30840
2020-01-09$8.90$8.902,960
2020-01-08$8.60$8.601,190
2020-01-07$8.50$8.506,410
2020-01-06$8.10$8.106,100
2020-01-03$8.10$8.101,860
2020-01-02$8.30$8.305,820