NYSE:BCHT | Historical Stock Price | Birchtech 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
2012-04-10 to 2026-09-04
Data captured

Stock Price Chart

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

$0.66$1.26$2.37$4.49$8.47$16.012012-04-102026-08-27

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

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$1.20$1.2010,480
2018-12-28$1.25$1.258,580
2018-12-27$1.30$1.30200
2018-12-26$1.25$1.255,620
2018-12-24$1.15$1.1511,680
2018-12-21$1.25$1.257,500
2018-12-20$1.20$1.209,520
2018-12-19$1.40$1.403,060
2018-12-18$1.35$1.351,000
2018-12-17$1.40$1.40560
2018-12-14$1.45$1.45500
2018-12-13$1.55$1.550
2018-12-12$1.55$1.552,020
2018-12-11$1.50$1.508,320
2018-12-10$1.70$1.7060
2018-12-07$1.65$1.652,220
2018-12-06$1.70$1.7015,920
2018-12-04$1.70$1.700
2018-12-03$1.70$1.708,000
2018-11-30$1.65$1.652,300
2018-11-29$1.65$1.654,440
2018-11-28$1.70$1.705,680
2018-11-27$1.65$1.65160
2018-11-26$1.65$1.659,080
2018-11-23$1.75$1.750
2018-11-21$1.75$1.759,600
2018-11-20$1.55$1.5515,900
2018-11-19$1.60$1.6011,080
2018-11-16$1.35$1.3522,460
2018-11-15$1.30$1.304,900
2018-11-14$1.20$1.209,440
2018-11-13$1.10$1.1012,540
2018-11-12$1.15$1.1512,180
2018-11-09$1.30$1.303,020
2018-11-08$1.20$1.2058,600
2018-11-07$1.10$1.10320
2018-11-06$1.05$1.050
2018-11-05$1.05$1.050
2018-11-02$1.05$1.05180
2018-11-01$1.00$1.0016,080
2018-10-31$1.00$1.000
2018-10-30$1.00$1.003,080
2018-10-29$1.05$1.050
2018-10-26$1.05$1.05200
2018-10-25$1.05$1.058,380
2018-10-24$1.10$1.100
2018-10-23$1.10$1.103,100
2018-10-22$1.10$1.10100
2018-10-19$1.05$1.057,220
2018-10-18$1.15$1.150
2018-10-17$1.15$1.150
2018-10-16$1.15$1.152,860
2018-10-15$1.10$1.104,000
2018-10-12$1.20$1.2040
2018-10-11$1.20$1.20600
2018-10-10$1.05$1.051,540
2018-10-09$1.15$1.151,000
2018-10-08$1.15$1.15820
2018-10-05$1.20$1.200
2018-10-04$1.20$1.209,140
2018-10-03$1.15$1.153,540
2018-10-02$1.10$1.104,800
2018-10-01$1.15$1.156,400
2018-09-28$1.30$1.301,200
2018-09-27$1.35$1.351,000
2018-09-26$1.35$1.355,260
2018-09-25$1.35$1.350
2018-09-24$1.35$1.3524,460
2018-09-21$1.40$1.4080
2018-09-20$1.40$1.40260
2018-09-19$1.35$1.352,040
2018-09-18$1.35$1.35220
2018-09-17$1.25$1.251,000
2018-09-14$1.25$1.256,980
2018-09-13$1.25$1.254,240
2018-09-12$1.30$1.3011,820
2018-09-11$1.30$1.3039,700
2018-09-10$1.25$1.2519,000
2018-09-07$1.25$1.2510,240
2018-09-06$1.15$1.15920
2018-09-05$1.20$1.204,360
2018-09-04$1.15$1.157,460
2018-08-31$1.20$1.20220
2018-08-30$1.25$1.2524,280
2018-08-29$1.15$1.15840
2018-08-28$1.20$1.200
2018-08-27$1.20$1.2016,080
2018-08-24$1.30$1.306,980
2018-08-23$1.15$1.1511,980
2018-08-22$1.10$1.1030,040
2018-08-21$1.00$1.0054,080
2018-08-20$1.00$1.002,620
2018-08-17$1.00$1.0027,640
2018-08-16$0.95$0.9548,120
2018-08-15$0.90$0.9023,920
2018-08-14$0.80$0.8013,540
2018-08-13$0.85$0.85300
2018-08-10$0.85$0.852,200
2018-08-09$0.85$0.858,000
2018-08-08$0.80$0.800
2018-08-07$0.80$0.801,660
2018-08-06$0.85$0.850
2018-08-03$0.85$0.852,340
2018-08-02$0.85$0.853,240
2018-08-01$0.85$0.851,320
2018-07-31$0.80$0.801,200
2018-07-30$0.80$0.804,200
2018-07-27$0.80$0.8018,760
2018-07-26$0.75$0.7517,480
2018-07-25$0.90$0.906,380
2018-07-24$0.85$0.8512,980
2018-07-23$0.90$0.901,400
2018-07-20$0.90$0.902,000
2018-07-19$0.85$0.8515,040
2018-07-18$0.90$0.907,740
2018-07-17$0.80$0.8022,600
2018-07-16$1.00$1.000
2018-07-13$1.00$1.007,400
2018-07-12$0.95$0.9511,220
2018-07-11$0.95$0.955,340
2018-07-10$1.00$1.001,000
2018-07-09$1.05$1.0521,100
2018-07-06$0.95$0.9515,240
2018-07-05$1.00$1.004,780
2018-07-03$1.05$1.051,440
2018-07-02$1.05$1.05180
2018-06-29$1.05$1.05100
2018-06-28$1.05$1.050
2018-06-27$1.05$1.0513,120
2018-06-26$1.15$1.1524,640
2018-06-25$1.15$1.15220
2018-06-22$1.15$1.15100
2018-06-21$1.15$1.152,100
2018-06-20$1.20$1.200
2018-06-19$1.20$1.202,900
2018-06-18$1.00$1.002,000
2018-06-15$1.30$1.30240
2018-06-14$1.15$1.150
2018-06-13$1.15$1.151,860
2018-06-12$1.15$1.1523,540
2018-06-11$1.20$1.200
2018-06-08$1.20$1.201,080
2018-06-07$1.15$1.1530,260
2018-06-06$1.35$1.356,020
2018-06-05$1.40$1.40160
2018-06-04$1.45$1.450
2018-06-01$1.45$1.4517,600
2018-05-31$1.50$1.506,640
2018-05-30$1.45$1.451,380
2018-05-29$1.50$1.502,240
2018-05-25$1.40$1.40920
2018-05-24$1.55$1.55400
2018-05-23$1.40$1.401,540
2018-05-22$1.50$1.5035,120
2018-05-21$2.00$2.0014,720
2018-05-18$1.80$1.80880
2018-05-17$1.90$1.903,440
2018-05-16$2.00$2.004,700
2018-05-15$1.95$1.952,020
2018-05-14$1.95$1.953,200
2018-05-11$1.95$1.959,120
2018-05-10$2.00$2.000
2018-05-09$2.00$2.001,620
2018-05-08$2.10$2.102,900
2018-05-07$2.05$2.053,500
2018-05-04$2.00$2.001,300
2018-05-03$2.00$2.002,180
2018-05-02$2.00$2.000
2018-05-01$2.00$2.002,500
2018-04-30$2.10$2.10100
2018-04-27$2.00$2.009,280
2018-04-26$2.15$2.1510,960
2018-04-25$2.05$2.0516,120
2018-04-24$2.20$2.20880
2018-04-23$2.10$2.1036,840
2018-04-20$2.05$2.0558,060
2018-04-19$1.80$1.8046,360
2018-04-18$1.75$1.7511,380
2018-04-17$1.30$1.3019,480
2018-04-16$1.20$1.206,740
2018-04-13$1.25$1.2530,260
2018-04-12$1.25$1.2511,780
2018-04-11$1.25$1.2535,380
2018-04-10$1.25$1.2510,880
2018-04-09$1.20$1.204,400
2018-04-06$1.20$1.20700
2018-04-05$1.20$1.204,240
2018-04-04$1.20$1.200
2018-04-03$1.20$1.204,220
2018-04-02$1.20$1.20200
2018-03-29$1.20$1.2012,920
2018-03-28$1.25$1.25440
2018-03-27$1.20$1.2011,700
2018-03-26$1.30$1.30500
2018-03-23$1.35$1.352,260
2018-03-22$1.30$1.302,000
2018-03-21$1.35$1.35500
2018-03-20$1.40$1.40620
2018-03-19$1.40$1.400
2018-03-16$1.40$1.401,700
2018-03-15$1.40$1.4012,640
2018-03-14$1.40$1.401,640
2018-03-13$1.35$1.3510,460
2018-03-12$1.30$1.309,600
2018-03-09$1.40$1.40320
2018-03-08$1.40$1.403,340
2018-03-07$1.35$1.35600
2018-03-06$1.40$1.40440
2018-03-05$1.35$1.354,940
2018-03-02$1.40$1.4012,580
2018-03-01$1.30$1.303,440
2018-02-28$1.35$1.353,580
2018-02-27$1.40$1.4040
2018-02-26$1.45$1.459,680
2018-02-23$1.40$1.40340
2018-02-22$1.35$1.3512,140
2018-02-21$1.40$1.402,060
2018-02-20$1.40$1.402,000
2018-02-16$1.40$1.4012,960
2018-02-15$1.40$1.400
2018-02-14$1.40$1.40340
2018-02-13$1.35$1.350
2018-02-12$1.35$1.354,360
2018-02-09$1.35$1.352,540
2018-02-08$1.40$1.404,040
2018-02-07$1.35$1.35220
2018-02-06$1.35$1.358,720
2018-02-05$1.35$1.352,000
2018-02-02$1.40$1.4015,500
2018-02-01$1.40$1.408,080
2018-01-31$1.40$1.401,700
2018-01-30$1.40$1.402,300
2018-01-29$1.40$1.4017,280
2018-01-26$1.45$1.4511,120
2018-01-25$1.45$1.4547,960
2018-01-24$1.45$1.459,160
2018-01-23$1.45$1.455,320
2018-01-22$1.40$1.403,080
2018-01-19$1.45$1.452,000
2018-01-18$1.45$1.4531,820
2018-01-17$1.45$1.452,200
2018-01-16$1.45$1.4565,820
2018-01-12$1.45$1.4561,920
2018-01-11$1.45$1.45224,600
2018-01-10$1.60$1.6030,440
2018-01-09$1.70$1.7014,440
2018-01-08$1.50$1.5010,780
2018-01-05$1.50$1.5015,800
2018-01-04$1.50$1.5024,100
2018-01-03$1.35$1.351,300
2018-01-02$1.30$1.306,560