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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$3.20$3.2017,060——
2020-12-30$3.25$3.2521,620——
2020-12-29$3.10$3.1012,080——
2020-12-28$3.10$3.1025,220——
2020-12-24$3.20$3.207,100——
2020-12-23$3.25$3.2517,820——
2020-12-22$3.30$3.3033,800——
2020-12-21$3.05$3.0515,940——
2020-12-18$3.15$3.1512,420——
2020-12-17$3.05$3.0520,040——
2020-12-16$3.15$3.1519,760——
2020-12-15$3.05$3.058,680——
2020-12-14$2.95$2.9516,120——
2020-12-11$2.90$2.9020,680——
2020-12-10$3.05$3.0532,720——
2020-12-09$3.15$3.1533,840——
2020-12-08$3.50$3.5021,640——
2020-12-07$3.05$3.05101,640——
2020-12-04$3.00$3.00285,220——
2020-12-03$2.40$2.40148,460——
2020-12-02$1.70$1.708,440——
2020-12-01$1.70$1.70106,900——
2020-11-30$1.65$1.6527,320——
2020-11-27$1.55$1.5525,320——
2020-11-25$1.60$1.603,800——
2020-11-24$1.65$1.6553,020——
2020-11-23$1.60$1.606,520——
2020-11-20$1.40$1.40620——
2020-11-19$1.40$1.4010,800——
2020-11-18$1.40$1.4014,300——
2020-11-17$1.45$1.4518,320——
2020-11-16$1.50$1.5027,600——
2020-11-13$1.45$1.454,660——
2020-11-12$1.40$1.4016,220——
2020-11-11$1.40$1.403,200——
2020-11-10$1.50$1.505,360——
2020-11-09$1.40$1.4012,900——
2020-11-06$1.70$1.702,920——
2020-11-05$1.80$1.807,500——
2020-11-04$1.80$1.8023,340——
2020-11-03$2.00$2.004,040——
2020-11-02$1.95$1.951,140——
2020-10-30$1.95$1.954,620——
2020-10-29$1.95$1.9514,200——
2020-10-28$2.00$2.002,180——
2020-10-27$1.85$1.850——
2020-10-26$1.85$1.851,100——
2020-10-23$1.90$1.905,200——
2020-10-22$1.90$1.904,900——
2020-10-21$1.90$1.901,220——
2020-10-20$2.00$2.003,540——
2020-10-19$2.05$2.056,700——
2020-10-16$2.10$2.1023,360——
2020-10-15$1.90$1.9010,020——
2020-10-14$1.70$1.707,380——
2020-10-13$1.60$1.601,060——
2020-10-12$1.60$1.601,100——
2020-10-09$1.60$1.6012,080——
2020-10-08$1.55$1.556,040——
2020-10-07$1.70$1.70880——
2020-10-06$1.70$1.700——
2020-10-05$1.70$1.703,000——
2020-10-02$1.70$1.704,300——
2020-10-01$1.70$1.709,600——
2020-09-30$1.75$1.7528,040——
2020-09-29$1.50$1.50320——
2020-09-28$1.50$1.5040,820——
2020-09-25$1.45$1.452,580——
2020-09-24$1.45$1.451,080——
2020-09-23$1.40$1.40400——
2020-09-22$1.45$1.45500——
2020-09-21$1.50$1.50320——
2020-09-18$1.50$1.5020——
2020-09-17$1.45$1.451,180——
2020-09-16$1.50$1.505,620——
2020-09-15$1.50$1.50320——
2020-09-14$1.50$1.50500——
2020-09-11$1.50$1.504,380——
2020-09-10$1.50$1.500——
2020-09-09$1.50$1.507,860——
2020-09-08$1.50$1.5011,320——
2020-09-04$1.50$1.5037,800——
2020-09-03$1.40$1.400——
2020-09-02$1.40$1.404,120——
2020-09-01$1.35$1.35560——
2020-08-31$1.40$1.404,320——
2020-08-28$1.40$1.404,140——
2020-08-27$1.30$1.301,860——
2020-08-26$1.45$1.451,820——
2020-08-25$1.40$1.407,380——
2020-08-24$1.40$1.400——
2020-08-21$1.40$1.404,600——
2020-08-20$1.40$1.4010,180——
2020-08-19$1.40$1.40280——
2020-08-18$1.40$1.40380——
2020-08-17$1.40$1.401,280——
2020-08-14$1.30$1.309,300——
2020-08-13$1.40$1.403,060——
2020-08-12$1.35$1.3513,660——
2020-08-11$1.45$1.4511,760——
2020-08-10$1.35$1.3526,440——
2020-08-07$1.40$1.4040,400——
2020-08-06$1.40$1.4012,520——
2020-08-05$1.45$1.454,740——
2020-08-04$1.50$1.50110,000——
2020-08-03$1.00$1.0019,100——
2020-07-31$0.85$0.852,700——
2020-07-30$0.85$0.85400——
2020-07-29$0.85$0.8560——
2020-07-28$0.85$0.85360——
2020-07-27$0.85$0.850——
2020-07-24$0.85$0.8560——
2020-07-23$0.85$0.8519,080——
2020-07-22$0.85$0.850——
2020-07-21$0.85$0.852,800——
2020-07-20$0.85$0.8519,620——
2020-07-17$0.90$0.901,000——
2020-07-16$0.90$0.90620——
2020-07-15$0.90$0.901,000——
2020-07-14$0.90$0.903,700——
2020-07-13$0.95$0.951,200——
2020-07-10$0.95$0.9511,700——
2020-07-09$0.95$0.955,780——
2020-07-08$1.00$1.001,340——
2020-07-07$0.95$0.95360——
2020-07-06$1.00$1.000——
2020-07-02$1.00$1.008,400——
2020-07-01$0.95$0.95560——
2020-06-30$0.95$0.952,860——
2020-06-29$1.00$1.0040——
2020-06-26$1.00$1.001,940——
2020-06-25$1.00$1.007,000——
2020-06-24$1.00$1.001,200——
2020-06-23$0.95$0.956,400——
2020-06-22$0.95$0.951,000——
2020-06-19$0.95$0.956,960——
2020-06-18$0.95$0.952,440——
2020-06-17$0.95$0.954,420——
2020-06-16$1.05$1.052,660——
2020-06-15$1.00$1.005,400——
2020-06-12$0.95$0.95940——
2020-06-11$1.00$1.000——
2020-06-10$1.00$1.0018,220——
2020-06-09$0.85$0.850——
2020-06-08$0.85$0.850——
2020-06-05$0.85$0.8560——
2020-06-04$0.85$0.85520——
2020-06-03$0.85$0.851,660——
2020-06-02$0.90$0.900——
2020-06-01$0.90$0.908,980——
2020-05-29$0.90$0.901,380——
2020-05-28$0.90$0.901,000——
2020-05-27$0.90$0.900——
2020-05-26$0.90$0.90520——
2020-05-22$0.85$0.8531,000——
2020-05-21$0.80$0.8029,800——
2020-05-20$0.85$0.852,000——
2020-05-19$0.85$0.851,000——
2020-05-18$0.85$0.852,000——
2020-05-15$0.80$0.802,000——
2020-05-14$0.80$0.800——
2020-05-13$0.80$0.800——
2020-05-12$0.80$0.80320——
2020-05-11$0.80$0.80280——
2020-05-08$0.85$0.852,200——
2020-05-07$0.85$0.850——
2020-05-06$0.85$0.850——
2020-05-05$0.85$0.850——
2020-05-04$0.85$0.851,080——
2020-05-01$0.80$0.80520——
2020-04-30$0.80$0.809,960——
2020-04-29$0.75$0.756,200——
2020-04-28$0.75$0.754,000——
2020-04-27$0.75$0.7557,740——
2020-04-24$0.70$0.7023,300——
2020-04-23$0.70$0.700——
2020-04-22$0.70$0.701,000——
2020-04-21$0.75$0.75360——
2020-04-20$0.70$0.704,400——
2020-04-17$0.75$0.75820——
2020-04-16$0.75$0.7535,860——
2020-04-15$0.70$0.7023,480——
2020-04-14$0.75$0.7525,500——
2020-04-13$0.75$0.752,040——
2020-04-09$0.80$0.800——
2020-04-08$0.80$0.800——
2020-04-07$0.80$0.800——
2020-04-06$0.80$0.8020,200——
2020-04-03$0.80$0.8021,640——
2020-04-02$0.70$0.7060,000——
2020-04-01$0.70$0.7060,000——
2020-03-31$0.80$0.802,600——
2020-03-30$0.75$0.750——
2020-03-27$0.75$0.7520,760——
2020-03-26$0.70$0.7029,240——
2020-03-25$0.75$0.7516,940——
2020-03-24$0.75$0.753,980——
2020-03-23$0.70$0.7015,100——
2020-03-20$0.65$0.655,740——
2020-03-19$0.75$0.75120——
2020-03-18$0.75$0.752,440——
2020-03-17$0.75$0.75160——
2020-03-16$0.70$0.70189,520——
2020-03-13$1.00$1.000——
2020-03-12$1.00$1.000——
2020-03-11$1.00$1.000——
2020-03-10$1.00$1.000——
2020-03-09$1.00$1.001,040——
2020-03-06$0.95$0.951,060——
2020-03-05$0.85$0.850——
2020-03-04$0.85$0.850——
2020-03-03$0.85$0.853,500——
2020-03-02$0.90$0.901,160——
2020-02-28$0.90$0.9022,220——
2020-02-27$0.95$0.952,660——
2020-02-26$0.95$0.9513,040——
2020-02-25$0.95$0.950——
2020-02-24$0.95$0.950——
2020-02-21$0.95$0.9514,100——
2020-02-20$0.90$0.900——
2020-02-19$0.90$0.900——
2020-02-18$0.90$0.90880——
2020-02-14$0.85$0.851,300——
2020-02-13$0.85$0.850——
2020-02-12$0.85$0.851,580——
2020-02-11$0.85$0.850——
2020-02-10$0.85$0.853,000——
2020-02-07$0.90$0.901,240——
2020-02-06$1.00$1.00700——
2020-02-05$0.95$0.955,960——
2020-02-04$0.90$0.905,500——
2020-02-03$1.00$1.000——
2020-01-31$1.00$1.000——
2020-01-30$1.00$1.000——
2020-01-29$1.00$1.0027,000——
2020-01-28$1.00$1.0019,360——
2020-01-27$0.90$0.9020——
2020-01-24$0.90$0.900——
2020-01-23$0.90$0.900——
2020-01-22$0.90$0.900——
2020-01-21$0.90$0.9060——
2020-01-17$0.90$0.904,560——
2020-01-16$1.00$1.002,940——
2020-01-15$0.90$0.90900——
2020-01-14$0.95$0.950——
2020-01-13$0.95$0.9540——
2020-01-10$1.00$1.000——
2020-01-09$1.00$1.000——
2020-01-08$1.00$1.000——
2020-01-07$1.00$1.000——
2020-01-06$1.00$1.000——
2020-01-03$1.00$1.003,600——
2020-01-02$1.00$1.002,620——