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-0.74%
2m
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-1.21%
2m
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-0.29%
2m
Russell 2000$287.67
-1.37%
2m
Russell 1000$411.83
-0.71%
2m
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-0.10%
2m
S&P 600$1,681.95
-0.85%
2m

Protosource (PSCO)

OTC

$0.02+$0.001 (+8.02%)

Price as of May 26, 2026

N/A
Market Cap
2.94%
1-Year Change
Shell Companies
Industry

1 Month
-13.79%

Low Price$0.02

High Price$0.02
3 Months
+6.06%

Low Price$0.02

High Price$0.05
1 Year
-52.70%

Low Price$0.009

High Price$0.18

From

Show

Frequency

Date	Open	High	Low	Close	Change (%)	Volume
05/26/2026	0.02	0.02	0.02	0.02	+8.02%	8,000
05/19/2026	0.02	0.02	0.02	0.02	-22.86%	26,000
05/14/2026	0.02	0.02	0.02	0.02	+3.45%	1,702
05/13/2026	0.02	0.02	0.02	0.02	0.00%	220
05/12/2026	0.02	0.02	0.02	0.02	-3.33%	500
05/11/2026	0.02	0.02	0.02	0.02	+3.45%	8,298
05/08/2026	0.02	0.02	0.02	0.02	0.00%	400
04/30/2026	0.04	0.04	0.02	0.02	0.00%	2,150
04/21/2026	0.02	0.02	0.02	0.02	-21.92%	39,300
04/20/2026	0.03	0.03	0.03	0.03	-49.81%	800
04/15/2026	0.05	0.05	0.05	0.05	+213.94%	10,000
04/06/2026	0.02	0.02	0.02	0.02	+1.85%	3,666
02/26/2026	0.02	0.02	0.02	0.02	-35.71%	7,991
02/25/2026	0.03	0.03	0.03	0.03	+55.56%	500
02/10/2026	0.02	0.02	0.02	0.02	-71.28%	1,200
02/06/2026	0.03	0.06	0.03	0.06	+123.81%	1,200
02/04/2026	0.08	0.08	0.03	0.03	-67.27%	3,270
02/03/2026	0.08	0.08	0.08	0.08	+13.24%	371
01/30/2026	0.07	0.07	0.07	0.07	+547.62%	82,728
01/26/2026	0.01	0.01	0.01	0.01	-34.37%	120
01/12/2026	0.02	0.02	0.02	0.02	0.00%	3,525
01/07/2026	0.02	0.02	0.02	0.02	0.00%	3,604
01/02/2026	0.02	0.02	0.02	0.02	+55.34%	2,000
12/31/2025	0.01	0.01	0.01	0.01	0.00%	10,000
12/30/2025	0.02	0.02	0.01	0.01	-43.09%	107,400
12/23/2025	0.02	0.02	0.02	0.02	0.00%	1,200
12/19/2025	0.02	0.02	0.02	0.02	+13.13%	500
12/18/2025	0.02	0.02	0.02	0.02	0.00%	2,500
12/16/2025	0.02	0.02	0.02	0.02	-15.79%	19,990
12/15/2025	0.02	0.02	0.02	0.02	+4.97%	3,500
12/11/2025	0.02	0.02	0.02	0.02	+5.85%	2,550
12/08/2025	0.02	0.02	0.02	0.02	-71.50%	154
11/10/2025	0.06	0.06	0.06	0.06	+20.00%	3,000
11/05/2025	0.04	0.05	0.03	0.05	+38.89%	21,297
11/04/2025	0.04	0.04	0.04	0.04	+172.73%	9,500
11/03/2025	0.12	0.12	0.01	0.01	-90.43%	22,611
10/31/2025	0.10	0.14	0.10	0.14	+360.00%	33,000
10/30/2025	0.03	0.03	0.03	0.03	0.00%	4,320
10/29/2025	0.04	0.10	0.03	0.03	-34.78%	26,280
10/28/2025	0.05	0.05	0.05	0.05	-8.00%	10,000
10/24/2025	0.05	0.05	0.05	0.05	+8.70%	264
10/23/2025	0.05	0.05	0.05	0.05	0.00%	900
10/22/2025	0.05	0.07	0.05	0.05	-17.86%	9,200
10/21/2025	0.06	0.06	0.06	0.06	-40.43%	443
10/20/2025	0.09	0.09	0.09	0.09	-4.08%	3,025
10/17/2025	0.11	0.11	0.10	0.10	+117.78%	3,545
10/16/2025	0.05	0.05	0.05	0.05	-63.11%	5,000
10/15/2025	0.12	0.12	0.12	0.12	+143.51%	2,600
10/13/2025	0.05	0.05	0.05	0.05	-37.37%	3,065
10/10/2025	0.08	0.08	0.08	0.08	+21.95%	1,831
10/09/2025	0.10	0.12	0.05	0.07	-51.34%	17,000
10/08/2025	0.13	0.13	0.13	0.13	+140.29%	2,597
10/07/2025	0.14	0.14	0.05	0.06	-36.97%	29,285
10/06/2025	0.06	0.09	0.06	0.09	+28.80%	47,170
10/03/2025	0.16	0.16	0.07	0.07	0.00%	6,000
10/02/2025	0.06	0.15	0.06	0.07	-57.35%	4,001
10/01/2025	0.11	0.16	0.11	0.16	0.00%	2,299
09/30/2025	0.06	0.16	0.06	0.16	+131.43%	29,998
09/29/2025	0.06	0.07	0.06	0.07	+16.28%	35,625
09/26/2025	0.13	0.15	0.05	0.06	-51.84%	115,428
09/25/2025	0.13	0.13	0.13	0.13	0.00%	8,500
09/24/2025	0.13	0.17	0.13	0.13	-26.47%	26,500
09/23/2025	0.13	0.17	0.13	0.17	-5.56%	22,864
09/22/2025	0.20	0.20	0.13	0.18	0.00%	95,025
09/19/2025	0.15	0.21	0.08	0.18	+16.88%	113,246
09/18/2025	0.16	0.16	0.08	0.15	+10.00%	52,650
09/17/2025	0.15	0.15	0.08	0.14	+8.53%	142,377
09/16/2025	0.11	0.14	0.10	0.13	+29.00%	142,659
09/15/2025	0.11	0.11	0.09	0.10	+5.26%	33,734
09/12/2025	0.10	0.10	0.10	0.10	+90.00%	4,196
09/11/2025	0.10	0.10	0.05	0.05	-47.37%	19,125
09/10/2025	0.10	0.10	0.05	0.10	-2.06%	16,640
09/09/2025	0.10	0.10	0.10	0.10	+1.04%	100
09/08/2025	0.09	0.10	0.05	0.10	+24.68%	31,354
09/05/2025	0.09	0.09	0.08	0.08	-3.75%	12,050
09/04/2025	0.09	0.09	0.05	0.08	0.00%	96,802
09/03/2025	0.05	0.08	0.05	0.08	+33.33%	8,264
09/02/2025	0.08	0.08	0.05	0.06	+20.00%	50,664
08/29/2025	0.06	0.06	0.05	0.05	-13.79%	10,988
08/28/2025	0.06	0.06	0.05	0.06	+2.65%	25,827
08/27/2025	0.06	0.06	0.06	0.06	+13.00%	4,000
08/26/2025	0.06	0.06	0.05	0.05	-11.50%	7,100
08/25/2025	0.06	0.06	0.06	0.06	+13.00%	100
08/22/2025	0.05	0.05	0.05	0.05	-11.82%	40,852
08/21/2025	0.06	0.06	0.06	0.06	-2.24%	2,320
08/20/2025	0.06	0.06	0.06	0.06	+81.25%	8,085
08/18/2025	0.06	0.06	0.03	0.03	+26.98%	32,161
08/15/2025	0.06	0.06	0.03	0.03	-56.55%	1,000
08/14/2025	0.06	0.06	0.06	0.06	+8.72%	1,159
08/13/2025	0.06	0.06	0.05	0.05	+52.43%	10,000
08/05/2025	0.04	0.04	0.04	0.04	-40.68%	2,686
07/31/2025	0.06	0.06	0.06	0.06	0.00%	12,000
07/30/2025	0.06	0.06	0.06	0.06	+195.00%	3,000
07/28/2025	0.02	0.02	0.02	0.02	+21.21%	3,604
07/21/2025	0.03	0.03	0.02	0.02	+3.13%	4,604
07/18/2025	0.02	0.02	0.02	0.02	-11.11%	36,000
07/15/2025	0.05	0.05	0.02	0.02	-73.91%	14,043
07/14/2025	0.07	0.07	0.07	0.07	+294.29%	4,000
07/10/2025	0.04	0.07	0.02	0.02	+9.38%	57,749
07/03/2025	0.04	0.04	0.02	0.02	0.00%	700