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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$0.95$0.9521,060——
2019-12-30$0.90$0.901,720——
2019-12-27$0.95$0.9513,400——
2019-12-26$0.95$0.9534,780——
2019-12-24$1.00$1.0023,800——
2019-12-23$1.00$1.004,300——
2019-12-20$1.05$1.0516,900——
2019-12-19$1.20$1.20340——
2019-12-18$1.10$1.1052,340——
2019-12-17$1.20$1.2036,160——
2019-12-16$1.20$1.2045,320——
2019-12-13$1.15$1.151,560——
2019-12-12$1.20$1.2020,700——
2019-12-11$1.10$1.100——
2019-12-10$1.10$1.102,380——
2019-12-09$1.10$1.1012,340——
2019-12-06$1.10$1.1019,320——
2019-12-05$1.05$1.054,180——
2019-12-04$1.05$1.051,740——
2019-12-03$1.10$1.10600——
2019-12-02$1.10$1.103,500——
2019-11-29$1.15$1.1520,960——
2019-11-27$1.30$1.300——
2019-11-26$1.30$1.309,740——
2019-11-25$1.35$1.350——
2019-11-22$1.35$1.35680——
2019-11-21$1.35$1.35300——
2019-11-20$1.40$1.40200——
2019-11-19$1.35$1.3540——
2019-11-18$1.40$1.403,460——
2019-11-15$1.45$1.455,000——
2019-11-14$1.40$1.409,500——
2019-11-13$1.40$1.4030,900——
2019-11-12$1.45$1.450——
2019-11-11$1.45$1.450——
2019-11-08$1.45$1.451,000——
2019-11-07$1.40$1.401,600——
2019-11-06$1.40$1.40720——
2019-11-05$1.40$1.400——
2019-11-04$1.40$1.401,200——
2019-11-01$1.50$1.501,000——
2019-10-31$1.45$1.45220——
2019-10-30$1.45$1.451,000——
2019-10-29$1.45$1.4520,200——
2019-10-28$1.55$1.5520——
2019-10-25$1.55$1.5523,920——
2019-10-24$1.60$1.6010,480——
2019-10-23$1.65$1.650——
2019-10-22$1.65$1.6534,300——
2019-10-21$1.60$1.60100——
2019-10-18$1.60$1.6020,000——
2019-10-17$1.60$1.600——
2019-10-16$1.60$1.6026,560——
2019-10-15$1.60$1.607,720——
2019-10-14$1.70$1.7016,980——
2019-10-11$1.80$1.800——
2019-10-10$1.80$1.806,800——
2019-10-09$1.80$1.807,000——
2019-10-08$1.80$1.8012,240——
2019-10-07$1.80$1.808,600——
2019-10-04$1.75$1.750——
2019-10-03$1.75$1.752,060——
2019-10-02$1.85$1.851,880——
2019-10-01$1.85$1.854,340——
2019-09-30$1.90$1.90300——
2019-09-27$1.85$1.850——
2019-09-26$1.85$1.85300——
2019-09-25$1.75$1.7580——
2019-09-24$1.75$1.75300——
2019-09-23$1.85$1.850——
2019-09-20$1.85$1.85200——
2019-09-19$1.90$1.9030,920——
2019-09-18$1.90$1.90500——
2019-09-17$1.90$1.900——
2019-09-16$1.90$1.900——
2019-09-13$1.90$1.90100——
2019-09-12$1.90$1.901,560——
2019-09-11$1.90$1.903,920——
2019-09-10$1.90$1.904,180——
2019-09-09$1.95$1.952,100——
2019-09-06$2.00$2.00500——
2019-09-05$2.00$2.00180——
2019-09-04$2.05$2.050——
2019-09-03$2.05$2.053,520——
2019-08-30$2.15$2.151,000——
2019-08-29$2.15$2.152,340——
2019-08-28$2.15$2.159,000——
2019-08-27$2.10$2.109,900——
2019-08-26$2.10$2.101,740——
2019-08-23$2.10$2.100——
2019-08-22$2.10$2.107,700——
2019-08-21$2.10$2.1012,320——
2019-08-20$2.25$2.2524,340——
2019-08-19$2.05$2.052,300——
2019-08-16$2.15$2.150——
2019-08-15$2.15$2.1512,980——
2019-08-14$2.10$2.102,220——
2019-08-13$2.15$2.151,200——
2019-08-12$2.10$2.105,700——
2019-08-09$2.10$2.10500——
2019-08-08$2.10$2.106,380——
2019-08-07$2.10$2.109,600——
2019-08-06$2.00$2.0011,380——
2019-08-05$1.95$1.958,680——
2019-08-02$1.85$1.8510,980——
2019-08-01$2.05$2.0521,040——
2019-07-31$1.90$1.901,800——
2019-07-30$1.85$1.8538,880——
2019-07-29$1.80$1.807,660——
2019-07-26$1.80$1.807,660——
2019-07-25$1.70$1.7052,240——
2019-07-24$1.60$1.6037,840——
2019-07-23$1.40$1.4042,720——
2019-07-22$1.35$1.3534,760——
2019-07-19$1.25$1.251,680——
2019-07-18$1.35$1.356,400——
2019-07-17$1.30$1.300——
2019-07-16$1.30$1.301,300——
2019-07-15$1.35$1.350——
2019-07-12$1.35$1.350——
2019-07-11$1.35$1.35500——
2019-07-10$1.25$1.252,420——
2019-07-09$1.35$1.350——
2019-07-08$1.35$1.350——
2019-07-05$1.35$1.35820——
2019-07-03$1.35$1.350——
2019-07-02$1.35$1.351,700——
2019-07-01$1.40$1.404,460——
2019-06-28$1.30$1.301,000——
2019-06-27$1.35$1.35800——
2019-06-26$1.35$1.355,800——
2019-06-25$1.40$1.40300——
2019-06-24$1.30$1.302,500——
2019-06-21$1.25$1.254,220——
2019-06-20$1.30$1.3020,320——
2019-06-19$1.30$1.308,320——
2019-06-18$1.15$1.150——
2019-06-17$1.15$1.153,920——
2019-06-14$1.10$1.1018,060——
2019-06-13$1.20$1.200——
2019-06-12$1.20$1.205,000——
2019-06-11$1.30$1.307,500——
2019-06-10$1.25$1.253,900——
2019-06-07$1.25$1.258,500——
2019-06-06$1.20$1.200——
2019-06-05$1.20$1.209,140——
2019-06-04$1.20$1.20780——
2019-06-03$1.30$1.30500——
2019-05-31$1.30$1.302,020——
2019-05-30$1.20$1.203,620——
2019-05-29$1.35$1.35180——
2019-05-28$1.35$1.35500——
2019-05-24$1.35$1.35800——
2019-05-23$1.40$1.400——
2019-05-22$1.40$1.400——
2019-05-21$1.40$1.402,940——
2019-05-20$1.40$1.4012,100——
2019-05-17$1.40$1.402,300——
2019-05-16$1.40$1.40260——
2019-05-15$1.40$1.408,000——
2019-05-14$1.35$1.3520——
2019-05-13$1.35$1.352,220——
2019-05-10$1.35$1.353,840——
2019-05-09$1.30$1.300——
2019-05-08$1.30$1.305,200——
2019-05-07$1.25$1.250——
2019-05-06$1.25$1.250——
2019-05-03$1.25$1.253,020——
2019-05-02$1.30$1.3020——
2019-05-01$1.25$1.250——
2019-04-30$1.25$1.252,240——
2019-04-29$1.25$1.253,600——
2019-04-26$1.30$1.3011,180——
2019-04-25$1.30$1.305,720——
2019-04-24$1.30$1.308,040——
2019-04-23$1.30$1.301,500——
2019-04-22$1.35$1.351,000——
2019-04-18$1.35$1.35180——
2019-04-17$1.35$1.3521,880——
2019-04-16$1.40$1.4013,000——
2019-04-15$1.40$1.404,600——
2019-04-12$1.40$1.409,360——
2019-04-11$1.35$1.352,600——
2019-04-10$1.35$1.35520——
2019-04-09$1.35$1.350——
2019-04-08$1.35$1.35240——
2019-04-05$1.35$1.350——
2019-04-04$1.35$1.350——
2019-04-03$1.35$1.35300——
2019-04-02$1.30$1.304,840——
2019-04-01$1.35$1.350——
2019-03-29$1.35$1.351,500——
2019-03-28$1.40$1.403,520——
2019-03-27$1.40$1.4040——
2019-03-26$1.45$1.450——
2019-03-25$1.45$1.4514,420——
2019-03-22$1.45$1.452,360——
2019-03-21$1.50$1.5020——
2019-03-20$1.50$1.50300——
2019-03-19$1.45$1.453,520——
2019-03-18$1.45$1.45480——
2019-03-15$1.35$1.351,580——
2019-03-14$1.40$1.401,240——
2019-03-13$1.45$1.451,660——
2019-03-12$1.40$1.404,840——
2019-03-11$1.40$1.403,860——
2019-03-08$1.40$1.401,120——
2019-03-07$1.40$1.4015,580——
2019-03-06$1.40$1.406,480——
2019-03-05$1.35$1.354,440——
2019-03-04$1.40$1.40980——
2019-03-01$1.40$1.402,780——
2019-02-28$1.40$1.407,780——
2019-02-27$1.40$1.409,560——
2019-02-26$1.40$1.4088,420——
2019-02-25$1.25$1.2554,260——
2019-02-22$1.30$1.3021,760——
2019-02-21$1.25$1.250——
2019-02-20$1.25$1.254,960——
2019-02-19$1.25$1.2513,760——
2019-02-15$1.25$1.2513,540——
2019-02-14$1.25$1.258,420——
2019-02-13$1.30$1.305,860——
2019-02-12$1.30$1.3018,000——
2019-02-11$1.25$1.2512,480——
2019-02-08$1.30$1.300——
2019-02-07$1.30$1.300——
2019-02-06$1.30$1.300——
2019-02-05$1.30$1.300——
2019-02-04$1.30$1.3012,780——
2019-02-01$1.30$1.305,220——
2019-01-31$1.25$1.2516,680——
2019-01-30$1.30$1.3023,740——
2019-01-29$1.30$1.300——
2019-01-28$1.30$1.30200——
2019-01-25$1.25$1.2523,360——
2019-01-24$1.25$1.254,460——
2019-01-23$1.25$1.252,520——
2019-01-22$1.25$1.257,560——
2019-01-18$1.30$1.309,040——
2019-01-17$1.25$1.253,720——
2019-01-16$1.25$1.2565,520——
2019-01-15$1.25$1.2516,560——
2019-01-14$1.25$1.254,540——
2019-01-11$1.25$1.25840——
2019-01-10$1.25$1.250——
2019-01-09$1.25$1.253,260——
2019-01-08$1.25$1.256,000——
2019-01-07$1.30$1.304,800——
2019-01-04$1.25$1.2514,260——
2019-01-03$1.25$1.250——
2019-01-02$1.25$1.252,700——