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ProtoSource Corporation (PSCO)
OTCMKTS · Delayed Price · Currency is USD
0.0160
0.00 (0.00%)
At close: Jan 12, 2026

ProtoSource Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jan 12, 20260.020.020.020.020.02-3,525
Jan 7, 20260.020.020.020.020.02-3,604
Jan 2, 20260.020.020.020.020.0255.34%2,000
Dec 31, 20250.010.010.010.010.01-10,000
Dec 30, 20250.020.020.010.010.01-43.09%107,400
Dec 23, 20250.020.020.020.020.02-1,200
Dec 19, 20250.020.020.020.020.0213.13%500
Dec 18, 20250.020.020.020.020.02-2,500
Dec 16, 20250.020.020.020.020.02-15.79%19,990
Dec 15, 20250.020.020.020.020.024.97%3,500
Dec 11, 20250.020.020.020.020.025.85%2,550
Dec 8, 20250.020.020.020.020.02-71.50%154
Nov 10, 20250.060.060.060.060.0620.00%3,000
Nov 5, 20250.040.050.030.050.0538.89%21,297
Nov 4, 20250.040.040.040.040.04172.73%9,500
Nov 3, 20250.120.120.010.010.01-90.43%22,611
Oct 31, 20250.100.140.100.140.14360.00%33,000
Oct 30, 20250.030.030.030.030.03-4,320
Oct 29, 20250.040.100.030.030.03-34.78%26,280
Oct 28, 20250.050.050.050.050.05-8.00%10,000
Oct 24, 20250.050.050.050.050.058.70%264
Oct 23, 20250.050.050.050.050.05-900
Oct 22, 20250.050.070.050.050.05-17.86%9,200
Oct 21, 20250.060.060.060.060.06-40.43%443
Oct 20, 20250.090.090.090.090.09-4.08%3,025
Oct 17, 20250.110.110.100.100.10117.78%3,545
Oct 16, 20250.050.050.050.050.05-63.11%5,000
Oct 15, 20250.120.120.120.120.12143.51%2,600
Oct 13, 20250.050.050.050.050.05-37.38%3,065
Oct 10, 20250.080.080.080.080.0821.95%1,831
Oct 9, 20250.100.120.050.070.07-51.34%17,000
Oct 8, 20250.130.130.130.130.13140.29%2,597
Oct 7, 20250.140.140.050.060.06-36.97%29,285
Oct 6, 20250.060.090.060.090.0928.80%47,170
Oct 3, 20250.160.160.070.070.07-6,000
Oct 2, 20250.060.150.060.070.07-57.35%4,001
Oct 1, 20250.110.160.110.160.16-2,299
Sep 30, 20250.060.160.060.160.16131.43%29,998
Sep 29, 20250.060.070.060.070.0716.28%35,625
Sep 26, 20250.130.150.050.060.06-51.84%115,428
Sep 25, 20250.130.130.130.130.13-8,500
Sep 24, 20250.130.170.130.130.13-26.47%26,500
Sep 23, 20250.130.170.130.170.17-5.56%22,864
Sep 22, 20250.200.200.130.180.18-85,015
Sep 19, 20250.150.210.080.180.1816.88%112,946
Sep 18, 20250.160.160.080.150.1510.00%52,650
Sep 17, 20250.150.150.080.140.148.53%142,377
Sep 16, 20250.110.140.100.130.1329.00%142,659
Sep 15, 20250.110.110.090.100.105.26%33,734
Sep 12, 20250.100.100.100.100.1090.00%4,196