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.

View year

Historical Stock Price — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$36.00$36.0024,840
2017-12-28$38.50$38.5022,070
2017-12-27$39.00$39.0010,750
2017-12-26$38.00$38.0017,270
2017-12-22$41.00$41.0018,460
2017-12-21$43.50$43.5029,840
2017-12-20$44.50$44.5054,650
2017-12-19$44.50$44.50128,240
2017-12-18$42.00$42.0036,760
2017-12-15$43.00$43.0058,210
2017-12-14$40.00$40.0039,130
2017-12-13$37.50$37.5028,160
2017-12-12$37.00$37.0019,160
2017-12-11$35.50$35.5034,960
2017-12-08$35.00$35.0079,320
2017-12-07$36.50$36.50185,620
2017-12-06$33.50$33.50363,900
2017-12-05$25.00$25.00139,830
2017-12-04$20.80$20.8035,300
2017-12-01$20.80$20.8046,590
2017-11-30$22.80$22.8018,890
2017-11-29$23.00$23.0014,980
2017-11-28$26.50$26.503,740
2017-11-27$26.80$26.8028,910
2017-11-24$28.00$28.002,080
2017-11-22$28.00$28.004,910
2017-11-21$29.00$29.0012,580
2017-11-20$29.50$29.5015,560
2017-11-17$28.00$28.004,500
2017-11-16$29.30$29.308,090
2017-11-15$26.50$26.5018,010
2017-11-14$28.50$28.5016,360
2017-11-13$30.00$30.005,940
2017-11-10$29.00$29.0020,190
2017-11-09$34.50$34.5014,790
2017-11-08$34.50$34.5012,970
2017-11-07$31.50$31.505,010
2017-11-06$31.00$31.003,180
2017-11-03$30.50$30.501,670
2017-11-02$31.00$31.001,520
2017-11-01$31.50$31.501,260
2017-10-31$32.00$32.002,130
2017-10-30$33.00$33.008,400
2017-10-27$32.00$32.002,620
2017-10-26$31.80$31.801,580
2017-10-25$30.50$30.504,540
2017-10-24$32.50$32.506,420
2017-10-23$30.00$30.005,340
2017-10-20$31.00$31.009,250
2017-10-19$31.00$31.001,050
2017-10-18$31.50$31.502,420
2017-10-17$32.00$32.004,800
2017-10-16$32.00$32.003,350
2017-10-13$33.00$33.006,260
2017-10-12$31.50$31.501,700
2017-10-11$32.00$32.00720
2017-10-10$32.50$32.502,070
2017-10-09$33.00$33.006,160
2017-10-06$35.50$35.501,080
2017-10-05$34.80$34.802,200
2017-10-04$35.00$35.001,920
2017-10-03$34.00$34.005,450
2017-10-02$34.50$34.5010,710
2017-09-29$35.50$35.506,180
2017-09-28$34.50$34.5015,420
2017-09-27$33.00$33.005,000
2017-09-26$30.00$30.001,330
2017-09-25$30.50$30.503,500
2017-09-22$31.00$31.0017,510
2017-09-21$31.50$31.504,590
2017-09-20$32.40$32.4054,440
2017-09-19$32.50$32.505,970
2017-09-18$29.00$29.006,660
2017-09-15$31.00$31.008,650
2017-09-14$32.50$32.502,870
2017-09-13$32.00$32.001,780
2017-09-12$32.00$32.003,480
2017-09-11$30.50$30.5011,650
2017-09-08$31.50$31.501,140
2017-09-07$31.50$31.503,670
2017-09-06$32.00$32.006,080
2017-09-05$31.50$31.503,720
2017-09-01$31.50$31.503,070
2017-08-31$30.50$30.503,620
2017-08-30$30.50$30.501,740
2017-08-29$30.50$30.504,130
2017-08-28$30.00$30.004,160
2017-08-25$30.00$30.004,470
2017-08-24$31.50$31.503,890
2017-08-23$30.00$30.003,630
2017-08-22$29.00$29.008,450
2017-08-21$29.00$29.006,650
2017-08-18$31.00$31.005,790
2017-08-17$32.50$32.504,390
2017-08-16$33.30$33.304,250
2017-08-15$31.00$31.0017,770
2017-08-14$34.00$34.006,600
2017-08-11$34.00$34.0016,420
2017-08-10$31.50$31.508,080
2017-08-09$32.50$32.504,230
2017-08-08$33.50$33.503,890
2017-08-07$34.00$34.005,560
2017-08-04$36.00$36.0013,980
2017-08-03$35.00$35.0014,470
2017-08-02$32.00$32.004,720
2017-08-01$34.00$34.003,190
2017-07-31$33.50$33.509,130
2017-07-28$34.00$34.005,860
2017-07-27$34.00$34.004,900
2017-07-26$34.50$34.5013,950
2017-07-25$35.00$35.0011,240
2017-07-24$35.50$35.504,320
2017-07-21$36.30$36.308,250
2017-07-20$37.00$37.002,340
2017-07-19$37.00$37.003,320
2017-07-18$37.50$37.504,460
2017-07-17$37.00$37.009,920
2017-07-14$40.00$40.0029,870
2017-07-13$36.00$36.003,960
2017-07-12$37.00$37.005,420
2017-07-11$36.00$36.004,100
2017-07-10$36.80$36.801,300
2017-07-07$36.00$36.002,040
2017-07-06$36.50$36.50900
2017-07-05$37.00$37.001,250
2017-07-03$38.50$38.50520
2017-06-30$38.00$38.001,270
2017-06-29$36.50$36.50400
2017-06-28$37.00$37.001,300
2017-06-27$37.50$37.504,870
2017-06-26$36.50$36.503,810
2017-06-23$38.00$38.006,440
2017-06-22$36.00$36.001,850
2017-06-21$37.00$37.001,750
2017-06-20$37.50$37.502,350
2017-06-19$38.50$38.502,530
2017-06-16$37.50$37.504,860
2017-06-15$39.10$39.105,280
2017-06-14$37.50$37.503,420
2017-06-13$37.00$37.004,240
2017-06-12$36.80$36.80880
2017-06-09$36.00$36.004,480
2017-06-08$36.30$36.301,850
2017-06-07$35.50$35.50980
2017-06-06$36.00$36.003,450
2017-06-05$35.50$35.504,890
2017-06-02$36.00$36.00600
2017-06-01$37.00$37.0010,530
2017-05-31$36.50$36.502,800
2017-05-30$37.50$37.503,360
2017-05-26$37.50$37.509,480
2017-05-25$38.00$38.002,400
2017-05-24$40.00$40.002,590
2017-05-23$39.50$39.503,990
2017-05-22$40.00$40.007,120
2017-05-19$42.50$42.5023,490
2017-05-18$41.00$41.009,280
2017-05-17$38.00$38.003,170
2017-05-16$39.00$39.007,340
2017-05-15$37.00$37.001,500
2017-05-12$36.00$36.0011,010
2017-05-11$35.50$35.507,690
2017-05-10$36.00$36.001,350
2017-05-09$35.00$35.004,510
2017-05-08$34.00$34.004,700
2017-05-05$35.50$35.504,680
2017-05-04$33.00$33.003,770
2017-05-03$34.50$34.501,550
2017-05-02$34.80$34.801,380
2017-05-01$34.50$34.505,420
2017-04-28$34.50$34.504,810
2017-04-27$35.00$35.002,250
2017-04-26$35.00$35.002,930
2017-04-25$35.50$35.506,060
2017-04-24$36.00$36.004,090
2017-04-21$36.00$36.001,280
2017-04-20$36.00$36.001,210
2017-04-19$37.00$37.003,630
2017-04-18$35.50$35.502,240
2017-04-17$35.50$35.502,090
2017-04-13$36.80$36.803,040
2017-04-12$37.00$37.002,880
2017-04-11$36.50$36.503,620
2017-04-10$36.00$36.005,300
2017-04-07$37.00$37.001,930
2017-04-06$37.00$37.002,920
2017-04-05$36.50$36.502,140
2017-04-04$36.50$36.503,700
2017-04-03$36.50$36.505,570
2017-03-31$39.00$39.003,960
2017-03-30$38.50$38.503,370
2017-03-29$36.50$36.502,510
2017-03-28$36.50$36.505,840
2017-03-27$38.00$38.0013,670
2017-03-24$37.50$37.508,310
2017-03-23$39.00$39.005,460
2017-03-22$39.00$39.0014,550
2017-03-21$37.50$37.5019,350
2017-03-20$37.50$37.506,830
2017-03-17$35.50$35.5014,130
2017-03-16$35.50$35.508,270
2017-03-15$36.00$36.004,030
2017-03-14$36.00$36.001,920
2017-03-13$37.00$37.002,580
2017-03-10$37.00$37.001,120
2017-03-09$37.00$37.002,090
2017-03-08$36.00$36.006,970
2017-03-07$36.50$36.503,230
2017-03-06$37.30$37.306,840
2017-03-03$37.00$37.008,340
2017-03-02$38.00$38.003,080
2017-03-01$39.50$39.509,340
2017-02-28$39.00$39.005,370
2017-02-27$40.00$40.002,540
2017-02-24$39.00$39.0012,300
2017-02-23$41.00$41.0010,590
2017-02-22$43.50$43.5010,650
2017-02-21$45.50$45.5011,110
2017-02-17$44.00$44.0023,570
2017-02-16$42.50$42.5025,260
2017-02-15$39.00$39.0016,000
2017-02-14$38.40$38.4013,940
2017-02-13$36.00$36.004,860
2017-02-10$36.00$36.002,350
2017-02-09$35.50$35.506,930
2017-02-08$35.00$35.007,810
2017-02-07$33.50$33.505,550
2017-02-06$31.50$31.502,970
2017-02-03$31.00$31.003,080
2017-02-02$31.50$31.503,220
2017-02-01$31.00$31.003,280
2017-01-31$30.50$30.502,220
2017-01-30$31.00$31.004,850
2017-01-27$31.50$31.507,620
2017-01-26$32.50$32.502,300
2017-01-25$33.50$33.503,820
2017-01-24$32.50$32.503,850
2017-01-23$32.00$32.006,880
2017-01-20$33.50$33.502,690
2017-01-19$34.50$34.501,310
2017-01-18$34.50$34.502,850
2017-01-17$35.00$35.007,630
2017-01-13$36.50$36.507,420
2017-01-12$34.50$34.506,520
2017-01-11$33.50$33.508,190
2017-01-10$34.50$34.5026,100
2017-01-09$34.00$34.001,040
2017-01-06$35.00$35.006,300
2017-01-05$34.50$34.5010,050
2017-01-04$32.00$32.0010,220
2017-01-03$34.00$34.002,550