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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$4.60$4.6038,460——
2023-12-28$4.95$4.9513,660——
2023-12-27$5.00$5.006,860——
2023-12-26$5.00$5.0025,000——
2023-12-22$5.05$5.0536,600——
2023-12-21$4.90$4.9010,480——
2023-12-20$4.70$4.7040,500——
2023-12-19$4.75$4.7520,420——
2023-12-18$4.60$4.6033,520——
2023-12-15$4.30$4.3047,860——
2023-12-14$4.45$4.4525,680——
2023-12-13$4.50$4.5049,560——
2023-12-12$4.55$4.5594,180——
2023-12-11$4.65$4.6531,880——
2023-12-08$4.90$4.9047,280——
2023-12-07$4.95$4.9535,840——
2023-12-06$4.90$4.9051,540——
2023-12-05$5.00$5.0058,160——
2023-12-04$4.95$4.9532,680——
2023-12-01$5.05$5.0523,720——
2023-11-30$5.05$5.0542,960——
2023-11-29$5.25$5.2575,180——
2023-11-28$5.60$5.6061,080——
2023-11-27$5.15$5.1564,400——
2023-11-24$4.55$4.5515,140——
2023-11-22$4.75$4.7544,840——
2023-11-21$4.55$4.55266,840——
2023-11-20$5.75$5.75428,400——
2023-11-17$4.85$4.85170,660——
2023-11-16$4.60$4.6071,020——
2023-11-15$4.55$4.55144,480——
2023-11-14$4.45$4.45133,020——
2023-11-13$4.30$4.30531,160——
2023-11-10$3.65$3.65554,920——
2023-11-09$2.50$2.5033,600——
2023-11-08$2.75$2.7511,400——
2023-11-07$2.75$2.7547,280——
2023-11-06$2.50$2.50106,320——
2023-11-03$2.10$2.1045,040——
2023-11-02$2.15$2.1522,500——
2023-11-01$2.00$2.0011,320——
2023-10-31$2.05$2.052,860——
2023-10-30$1.95$1.9515,220——
2023-10-27$2.10$2.1013,780——
2023-10-26$2.10$2.104,220——
2023-10-25$2.00$2.0050,200——
2023-10-24$1.90$1.903,120——
2023-10-23$1.95$1.9549,360——
2023-10-20$1.75$1.75130,940——
2023-10-19$1.75$1.7598,320——
2023-10-18$1.75$1.757,940——
2023-10-17$1.85$1.8526,460——
2023-10-16$1.80$1.80360——
2023-10-13$1.85$1.8517,220——
2023-10-12$1.90$1.90800——
2023-10-11$1.90$1.904,160——
2023-10-10$1.95$1.951,760——
2023-10-09$1.95$1.9513,800——
2023-10-06$1.90$1.905,000——
2023-10-05$1.90$1.9014,620——
2023-10-04$1.90$1.9036,720——
2023-10-03$1.90$1.905,860——
2023-10-02$1.90$1.9018,860——
2023-09-29$1.95$1.9518,700——
2023-09-28$2.00$2.003,640——
2023-09-27$2.00$2.0038,760——
2023-09-26$2.15$2.1542,960——
2023-09-25$1.80$1.8014,680——
2023-09-22$1.70$1.7011,980——
2023-09-21$1.55$1.553,980——
2023-09-20$1.55$1.550——
2023-09-19$1.55$1.556,460——
2023-09-18$1.50$1.509,680——
2023-09-15$1.45$1.4527,860——
2023-09-14$1.40$1.4017,900——
2023-09-13$1.30$1.302,980——
2023-09-12$1.30$1.3034,540——
2023-09-11$1.15$1.1516,360——
2023-09-08$1.10$1.1012,020——
2023-09-07$1.10$1.1033,100——
2023-09-06$1.20$1.2015,120——
2023-09-05$1.10$1.1018,980——
2023-09-01$1.25$1.2516,120——
2023-08-31$1.35$1.353,040——
2023-08-30$1.35$1.357,720——
2023-08-29$1.40$1.4016,400——
2023-08-28$1.40$1.4011,640——
2023-08-25$1.40$1.4012,180——
2023-08-24$1.35$1.352,220——
2023-08-23$1.40$1.4069,000——
2023-08-22$1.10$1.107,860——
2023-08-21$1.10$1.1028,160——
2023-08-18$1.15$1.1512,680——
2023-08-17$1.20$1.2060,480——
2023-08-16$1.35$1.3575,820——
2023-08-15$1.45$1.458,800——
2023-08-14$1.40$1.408,540——
2023-08-11$1.45$1.4513,260——
2023-08-10$1.45$1.454,360——
2023-08-09$1.50$1.508,580——
2023-08-08$1.55$1.5514,480——
2023-08-07$1.55$1.553,060——
2023-08-04$1.60$1.6021,220——
2023-08-03$1.60$1.601,600——
2023-08-02$1.60$1.6014,640——
2023-08-01$1.60$1.6028,780——
2023-07-31$1.70$1.70400——
2023-07-28$1.70$1.7028,360——
2023-07-27$1.70$1.7073,700——
2023-07-26$1.65$1.6540,960——
2023-07-25$1.75$1.758,400——
2023-07-24$1.70$1.7039,140——
2023-07-21$1.55$1.5521,920——
2023-07-20$1.60$1.6058,300——
2023-07-19$1.60$1.6056,040——
2023-07-18$1.60$1.6062,480——
2023-07-17$1.60$1.6036,140——
2023-07-14$1.75$1.7536,860——
2023-07-13$1.75$1.7560,120——
2023-07-12$1.55$1.5522,580——
2023-07-11$1.45$1.45100,060——
2023-07-10$1.45$1.4548,320——
2023-07-07$1.40$1.402,700——
2023-07-06$1.45$1.452,520——
2023-07-05$1.45$1.459,760——
2023-07-03$1.35$1.3511,940——
2023-06-30$1.45$1.454,740——
2023-06-29$1.50$1.502,640——
2023-06-28$1.40$1.403,000——
2023-06-27$1.50$1.504,260——
2023-06-26$1.60$1.601,580——
2023-06-23$1.60$1.605,800——
2023-06-22$1.60$1.605,040——
2023-06-21$1.60$1.608,140——
2023-06-20$1.60$1.60440——
2023-06-16$1.60$1.601,580——
2023-06-15$1.60$1.601,660——
2023-06-14$1.50$1.509,440——
2023-06-13$1.50$1.502,920——
2023-06-12$1.55$1.5514,800——
2023-06-09$1.40$1.4048,180——
2023-06-08$1.70$1.702,200——
2023-06-07$1.75$1.7528,620——
2023-06-06$1.85$1.859,100——
2023-06-05$1.90$1.9078,900——
2023-06-02$1.90$1.9012,380——
2023-06-01$1.90$1.9023,680——
2023-05-31$2.05$2.0519,280——
2023-05-30$1.95$1.951,160——
2023-05-26$2.00$2.0018,600——
2023-05-25$2.05$2.051,280——
2023-05-24$2.10$2.103,680——
2023-05-23$2.05$2.0540——
2023-05-22$2.00$2.0025,480——
2023-05-19$2.00$2.0010,360——
2023-05-18$1.95$1.9541,360——
2023-05-17$2.00$2.0010,300——
2023-05-16$1.90$1.9029,520——
2023-05-15$2.00$2.0026,560——
2023-05-12$2.00$2.000——
2023-05-11$2.00$2.0025,380——
2023-05-10$1.95$1.9536,920——
2023-05-09$2.05$2.05680——
2023-05-08$2.15$2.1517,540——
2023-05-05$2.25$2.254,200——
2023-05-04$2.10$2.108,500——
2023-05-03$2.10$2.1016,480——
2023-05-02$2.25$2.255,080——
2023-05-01$2.35$2.3514,800——
2023-04-28$2.35$2.3513,500——
2023-04-27$2.25$2.258,120——
2023-04-26$2.30$2.308,740——
2023-04-25$2.35$2.3515,820——
2023-04-24$2.35$2.351,500——
2023-04-21$2.35$2.353,380——
2023-04-20$2.40$2.4011,580——
2023-04-19$2.35$2.357,860——
2023-04-18$2.40$2.40113,780——
2023-04-17$2.00$2.0036,820——
2023-04-14$2.00$2.0016,980——
2023-04-13$2.00$2.0024,680——
2023-04-12$1.95$1.951,340——
2023-04-11$1.85$1.8518,360——
2023-04-10$1.85$1.8525,920——
2023-04-06$1.95$1.9513,880——
2023-04-05$2.00$2.0011,280——
2023-04-04$1.95$1.959,120——
2023-04-03$1.95$1.9526,600——
2023-03-31$1.95$1.9515,900——
2023-03-30$1.95$1.957,480——
2023-03-29$1.95$1.9513,260——
2023-03-28$1.90$1.9022,800——
2023-03-27$2.05$2.0513,500——
2023-03-24$2.00$2.0010,160——
2023-03-23$2.00$2.002,800——
2023-03-22$2.00$2.0012,980——
2023-03-21$2.00$2.006,300——
2023-03-20$2.05$2.056,100——
2023-03-17$1.95$1.954,260——
2023-03-16$2.00$2.00140——
2023-03-15$2.00$2.002,920——
2023-03-14$1.95$1.9511,180——
2023-03-13$1.90$1.9015,020——
2023-03-10$2.00$2.002,640——
2023-03-09$2.00$2.0017,580——
2023-03-08$2.00$2.008,840——
2023-03-07$2.00$2.009,580——
2023-03-06$2.10$2.1052,680——
2023-03-03$2.05$2.0513,060——
2023-03-02$2.10$2.106,980——
2023-03-01$2.00$2.0018,080——
2023-02-28$2.10$2.10240——
2023-02-27$2.15$2.150——
2023-02-24$2.15$2.1523,740——
2023-02-23$2.10$2.104,940——
2023-02-22$2.05$2.05120——
2023-02-21$2.15$2.1513,140——
2023-02-17$2.10$2.101,980——
2023-02-16$2.15$2.151,120——
2023-02-15$2.10$2.1026,120——
2023-02-14$2.20$2.200——
2023-02-13$2.20$2.20300——
2023-02-10$2.20$2.202,400——
2023-02-09$2.15$2.155,000——
2023-02-08$2.30$2.304,460——
2023-02-07$2.25$2.2519,020——
2023-02-06$2.40$2.4047,540——
2023-02-03$2.50$2.509,100——
2023-02-02$2.40$2.4013,540——
2023-02-01$2.45$2.4515,460——
2023-01-31$2.50$2.5020,680——
2023-01-30$2.45$2.457,420——
2023-01-27$2.40$2.4016,740——
2023-01-26$2.40$2.406,660——
2023-01-25$2.30$2.3012,280——
2023-01-24$2.35$2.3537,900——
2023-01-23$2.20$2.2037,880——
2023-01-20$2.05$2.059,700——
2023-01-19$2.00$2.0012,380——
2023-01-18$2.05$2.0549,360——
2023-01-17$1.95$1.9555,060——
2023-01-13$1.75$1.7558,020——
2023-01-12$1.35$1.359,280——
2023-01-11$1.30$1.3021,860——
2023-01-10$1.35$1.351,100——
2023-01-09$1.40$1.4011,020——
2023-01-06$1.40$1.4042,980——
2023-01-05$1.40$1.4012,720——
2023-01-04$1.40$1.4040,280——
2023-01-03$1.35$1.3555,260——