Yahoo
OTC Markets OTCQB - Delayed Quote USD

Protagenic Therapeutics, Inc. (PTIX)

0.6380 -0.0080 (-1.24%)
At close: October 30 at 4:00:00 PM EDT
Currency in USD
Download
Date Open High Low Close Adj Close Volume
Oct 30, 2026
0.6380 0.6380 0.6380 0.6380 0.6380 2,700
Oct 29, 2026
0.6480 0.6480 0.6420 0.6460 0.6460 1,700
Oct 28, 2026
0.6530 0.6530 0.6530 0.6530 0.6530 -
Oct 27, 2026
0.6530 0.6530 0.6530 0.6530 0.6530 100
Oct 26, 2026
0.7200 0.7200 0.6480 0.6480 0.6480 3,500
Oct 23, 2026
0.7200 0.7200 0.7200 0.7200 0.7200 900
Oct 22, 2026
0.7350 0.7350 0.7350 0.7350 0.7350 500
Oct 21, 2026
0.7200 0.7200 0.7200 0.7200 0.7200 100
Oct 20, 2026
0.7500 0.7500 0.7500 0.7500 0.7500 -
Oct 19, 2026
0.7630 0.7630 0.7500 0.7500 0.7500 1,300
Oct 16, 2026
0.7500 0.7500 0.7500 0.7500 0.7500 -
Oct 15, 2026
0.7500 0.7500 0.7500 0.7500 0.7500 200
Oct 14, 2026
0.8000 0.8000 0.8000 0.8000 0.8000 800
Oct 13, 2026
0.8060 0.8060 0.8060 0.8060 0.8060 1,100
Oct 12, 2026
0.7500 0.8060 0.7500 0.8060 0.8060 1,000
Oct 9, 2026
0.7700 0.7700 0.7700 0.7700 0.7700 -
Oct 8, 2026
0.7700 0.7700 0.7700 0.7700 0.7700 -
Oct 7, 2026
0.7700 0.7700 0.7700 0.7700 0.7700 -
Oct 6, 2026
0.7860 0.7860 0.7700 0.7700 0.7700 2,000
Oct 5, 2026
0.7740 0.7740 0.7740 0.7740 0.7740 -
Oct 2, 2026
0.7800 0.7800 0.7740 0.7740 0.7740 1,200
Oct 1, 2026
0.8000 0.8010 0.7800 0.7800 0.7800 5,700
Sep 30, 2026
0.8320 0.8320 0.8100 0.8100 0.8100 900
Sep 29, 2026
0.8200 0.8200 0.8080 0.8080 0.8080 1,200
Sep 28, 2026
0.7740 0.7800 0.7740 0.7800 0.7800 300
Sep 25, 2026
0.8050 0.8050 0.7740 0.7740 0.7740 4,100
Sep 24, 2026
0.8160 0.8160 0.8160 0.8160 0.8160 1,300
Sep 23, 2026
0.8700 0.8700 0.8600 0.8600 0.8600 2,400
Sep 22, 2026
0.8650 0.8840 0.8600 0.8600 0.8600 800
Sep 21, 2026
0.9140 0.9300 0.9060 0.9060 0.9060 3,400
Sep 18, 2026
0.7300 0.9140 0.7300 0.9140 0.9140 33,500
Sep 17, 2026
0.7690 0.7690 0.7290 0.7290 0.7290 10,300
Sep 16, 2026
0.7700 0.8400 0.7650 0.8400 0.8400 3,300
Sep 15, 2026
0.8100 0.8100 0.7900 0.7900 0.7900 11,400
Sep 14, 2026
0.8080 0.8500 0.8080 0.8300 0.8300 6,700
Sep 11, 2026
0.8100 0.8710 0.8100 0.8710 0.8710 400
Sep 10, 2026
0.9000 0.9000 0.8100 0.8710 0.8710 3,100
Sep 9, 2026
0.9100 0.9380 0.8500 0.9200 0.9200 28,100
Sep 8, 2026
1.0000 1.0900 0.9000 1.0260 1.0260 25,800
Sep 4, 2026
0.9500 1.0600 0.9500 1.0600 1.0600 1,700
Sep 3, 2026
1.0200 1.0200 0.9500 1.0000 1.0000 10,700
Sep 2, 2026
1.1900 1.1900 1.0500 1.0500 1.0500 17,700
Sep 1, 2026
1.2250 1.2400 1.1300 1.1900 1.1900 26,200
Aug 31, 2026
1.1100 1.2300 1.1100 1.2000 1.2000 30,100
Aug 28, 2026
0.9350 1.1100 0.9350 0.9800 0.9800 45,800
Aug 27, 2026
0.8500 0.9350 0.7700 0.9350 0.9350 36,600
Aug 26, 2026
0.9500 1.0100 0.8640 0.8900 0.8900 18,000
Aug 25, 2026
1.1800 1.2000 0.8500 0.9500 0.9500 43,400
Aug 24, 2026
0.8500 1.3200 0.8500 1.0900 1.0900 115,600
Aug 21, 2026
0.6490 0.9100 0.6300 0.8010 0.8010 140,600
Aug 20, 2026
0.4000 0.6130 0.4000 0.6000 0.6000 40,700
Aug 19, 2026
0.3420 0.3700 0.3420 0.3500 0.3500 4,100
Aug 18, 2026
0.3600 0.3600 0.3600 0.3600 0.3600 -
Aug 17, 2026
0.3600 0.3600 0.3600 0.3600 0.3600 -
Aug 14, 2026
0.3600 0.3630 0.3210 0.3600 0.3600 2,500
Aug 13, 2026
0.3600 0.3600 0.3600 0.3600 0.3600 -
Aug 12, 2026
0.3600 0.3600 0.3600 0.3600 0.3600 300
Aug 11, 2026
0.3000 0.3200 0.3000 0.3200 0.3200 4,700
Aug 10, 2026
0.2700 0.4130 0.2700 0.3500 0.3500 48,200
Aug 7, 2026
0.3100 0.3100 0.3100 0.3100 0.3100 100
Aug 6, 2026
0.2500 0.2500 0.2200 0.2200 0.2200 4,000
Aug 5, 2026
0.2500 0.2590 0.2500 0.2590 0.2590 9,000
Aug 4, 2026
0.1800 0.2100 0.1800 0.2100 0.2100 2,600
Aug 3, 2026
0.2100 0.2100 0.1400 0.1830 0.1830 400
Jul 31, 2026
0.1800 0.1800 0.1800 0.1800 0.1800 2,800
Jul 30, 2026
0.1400 0.1890 0.1400 0.1670 0.1670 28,200
Jul 29, 2026
0.1400 0.1400 0.1280 0.1280 0.1280 500
Jul 28, 2026
0.2450 0.2450 0.1400 0.1400 0.1400 34,300
Jul 27, 2026
0.2350 0.2880 0.1410 0.2190 0.2190 41,600
Jul 24, 2026
0.2160 0.2160 0.2160 0.2160 0.2160 -
Jul 23, 2026
0.2160 0.2160 0.2160 0.2160 0.2160 -
Jul 22, 2026
0.2160 0.2160 0.2160 0.2160 0.2160 -
Jul 21, 2026
0.1810 0.2900 0.1810 0.2160 0.2160 2,300
Jul 20, 2026
0.2600 0.2600 0.2600 0.2600 0.2600 -
Jul 17, 2026
0.2600 0.2600 0.2600 0.2600 0.2600 -
Jul 16, 2026
0.2600 0.2600 0.2600 0.2600 0.2600 -
Jul 15, 2026
0.2600 0.2600 0.2600 0.2600 0.2600 -
Jul 14, 2026
0.2600 0.2600 0.2600 0.2600 0.2600 -
Jul 13, 2026
0.2600 0.2600 0.2600 0.2600 0.2600 300
Jul 10, 2026
0.1400 0.2600 0.1400 0.2600 0.2600 7,500
Jul 9, 2026
0.1700 0.2200 0.1700 0.2200 0.2200 34,100
Jul 8, 2026
0.1800 0.1960 0.1800 0.1900 0.1900 4,100
Jul 7, 2026
0.2200 0.2200 0.2000 0.2000 0.2000 8,900
Jul 6, 2026
0.2300 0.2300 0.2220 0.2220 0.2220 2,500
Jul 2, 2026
0.4500 0.4500 0.2010 0.2300 0.2300 102,500
Jul 1, 2026
0.3600 0.3880 0.3500 0.3500 0.3500 2,000
Jun 30, 2026
0.3920 0.3920 0.3920 0.3920 0.3920 -
Jun 29, 2026
0.4050 0.4050 0.3700 0.3920 0.3920 11,100
Jun 26, 2026
0.3600 0.3600 0.3600 0.3600 0.3600 -
Jun 25, 2026
0.4100 0.4100 0.3600 0.3600 0.3600 600
Jun 24, 2026
0.3600 0.4100 0.3600 0.3600 0.3600 3,000
Jun 23, 2026
0.4500 0.4500 0.4500 0.4500 0.4500 -
Jun 22, 2026
0.3600 0.4500 0.3600 0.4500 0.4500 9,200
Jun 18, 2026
0.4100 0.4100 0.4100 0.4100 0.4100 200
Jun 17, 2026
0.4100 0.4100 0.4100 0.4100 0.4100 2,300
Jun 16, 2026
0.4050 0.4330 0.4050 0.4050 0.4050 13,100
Jun 15, 2026
0.5100 0.5100 0.3960 0.3960 0.3960 3,000
Jun 12, 2026
0.5400 0.5400 0.4000 0.5000 0.5000 58,500
Jun 11, 2026
0.6800 0.6800 0.6800 0.6800 0.6800 500
Jun 10, 2026
0.5400 0.5400 0.5400 0.5400 0.5400 5,100
Jun 9, 2026
0.5000 0.5290 0.5000 0.5290 0.5290 2,400
Jun 8, 2026
0.5200 0.5260 0.5200 0.5260 0.5260 500
Jun 5, 2026
0.5000 0.5000 0.5000 0.5000 0.5000 500
Jun 4, 2026
0.5320 0.6200 0.5000 0.5000 0.5000 6,900
Jun 3, 2026
0.5000 0.5300 0.5000 0.5300 0.5300 600
Jun 2, 2026
0.5000 0.5500 0.5000 0.5000 0.5000 4,200
Jun 1, 2026
0.4010 0.5500 0.4010 0.4990 0.4990 4,700
May 29, 2026
0.5430 0.5430 0.5430 0.5430 0.5430 -
May 28, 2026
0.4010 0.5430 0.4010 0.5430 0.5430 2,000
May 27, 2026
0.5260 0.5260 0.4010 0.5210 0.5210 3,200
May 26, 2026
0.5000 0.6540 0.4320 0.5460 0.5460 6,400
May 22, 2026
0.6180 0.6180 0.6180 0.6180 0.6180 -
May 21, 2026
0.6180 0.6180 0.6180 0.6180 0.6180 200
May 20, 2026
0.4500 0.6500 0.4400 0.6500 0.6500 4,100
May 19, 2026
0.6500 0.6500 0.6500 0.6500 0.6500 -
May 18, 2026
0.4900 0.6500 0.4900 0.6500 0.6500 400
May 15, 2026
0.6500 0.6500 0.6500 0.6500 0.6500 700
May 14, 2026
0.6500 0.6500 0.6500 0.6500 0.6500 300
May 13, 2026
0.4900 0.4900 0.4900 0.4900 0.4900 400
May 12, 2026
0.6500 0.6500 0.4290 0.4840 0.4840 34,100
May 11, 2026
0.8190 0.9010 0.5300 0.6500 0.6500 5,600
May 8, 2026
0.6350 0.8010 0.6200 0.7900 0.7900 7,600
May 7, 2026
0.5300 0.6030 0.5300 0.5800 0.5800 2,900
May 6, 2026
0.5300 0.5500 0.5300 0.5500 0.5500 200
May 5, 2026
0.7200 0.7200 0.5380 0.5380 0.5380 11,000
May 4, 2026
0.7370 0.7370 0.7200 0.7200 0.7200 400
May 1, 2026
0.8400 0.8400 0.8000 0.8000 0.8000 3,400
Apr 30, 2026
0.8800 0.8800 0.8800 0.8800 0.8800 2,100
Apr 29, 2026
1.0800 1.2000 0.8800 0.8800 0.8800 11,400
Apr 28, 2026
0.9900 1.0800 0.9530 1.0800 1.0800 32,200
Apr 27, 2026
0.8600 1.0000 0.8600 0.9710 0.9710 35,900
Apr 24, 2026
0.7300 0.8200 0.7300 0.8100 0.8100 21,300
Apr 23, 2026
0.6900 0.7680 0.6700 0.7240 0.7240 13,100
Apr 22, 2026
0.6600 0.6900 0.6600 0.6900 0.6900 3,100
Apr 21, 2026
0.5300 0.6760 0.5300 0.6600 0.6600 14,900
Apr 20, 2026
0.5700 0.5700 0.5330 0.5500 0.5500 6,300
Apr 17, 2026
0.5550 0.5700 0.5360 0.5700 0.5700 2,400
Apr 16, 2026
0.5400 0.5550 0.5400 0.5550 0.5550 1,700
Apr 15, 2026
0.5630 0.5700 0.5300 0.5300 0.5300 4,700
Apr 14, 2026
0.5500 0.5590 0.5500 0.5590 0.5590 1,500
Apr 13, 2026
0.5850 0.5850 0.5500 0.5500 0.5500 5,500
Apr 10, 2026
0.6500 0.6500 0.5850 0.5850 0.5850 1,400
Apr 9, 2026
0.6900 0.6900 0.6900 0.6900 0.6900 -
Apr 8, 2026
0.5300 0.7000 0.5300 0.6900 0.6900 9,500
Apr 7, 2026
0.5300 0.6990 0.5280 0.5300 0.5300 2,600
Apr 6, 2026
0.5300 0.5300 0.5300 0.5300 0.5300 500
Apr 2, 2026
0.5710 0.7200 0.5200 0.5300 0.5300 7,300
Apr 1, 2026
0.5200 0.6760 0.5200 0.5700 0.5700 1,300
Mar 31, 2026
0.6250 0.7300 0.6250 0.6780 0.6780 3,600
Mar 30, 2026
0.5850 0.6780 0.5850 0.6250 0.6250 1,500
Mar 27, 2026
0.6850 0.7400 0.5200 0.5200 0.5200 1,200
Mar 26, 2026
0.5000 0.7500 0.5000 0.7500 0.7500 6,200
Mar 25, 2026
0.7200 0.7650 0.6000 0.7000 0.7000 12,900
Mar 24, 2026
0.7000 0.7000 0.7000 0.7000 0.7000 400
Mar 23, 2026
0.6800 0.7200 0.6800 0.7200 0.7200 500
Mar 20, 2026
0.6200 0.7300 0.6200 0.6600 0.6600 5,400
Mar 19, 2026
0.6950 0.7300 0.6200 0.6200 0.6200 3,400
Mar 18, 2026
0.5600 0.7090 0.5600 0.6950 0.6950 23,600
Mar 17, 2026
0.5500 0.5600 0.5420 0.5420 0.5420 2,200
Mar 16, 2026
0.4900 0.4900 0.4900 0.4900 0.4900 -
Mar 13, 2026
0.4900 0.4900 0.4900 0.4900 0.4900 -
Mar 12, 2026
0.5180 0.5180 0.4900 0.4900 0.4900 2,300
Mar 11, 2026
0.4900 0.4900 0.4900 0.4900 0.4900 -
Mar 10, 2026
0.4500 0.6000 0.4500 0.4900 0.4900 20,300
Mar 9, 2026
0.4510 0.5400 0.4210 0.4210 0.4210 4,600
Mar 6, 2026
0.4210 0.4210 0.4210 0.4210 0.4210 -
Mar 5, 2026
0.4210 0.4510 0.4210 0.4210 0.4210 7,500
Mar 4, 2026
0.5000 0.5000 0.5000 0.5000 0.5000 -
Mar 3, 2026
0.4510 0.5000 0.4510 0.5000 0.5000 3,000
Mar 2, 2026
0.4510 0.4660 0.4500 0.4510 0.4510 6,500
Feb 27, 2026
0.4510 0.4650 0.4500 0.4650 0.4650 2,000
Feb 26, 2026
0.4500 0.5000 0.4500 0.4650 0.4650 16,300
Feb 25, 2026
0.3900 0.4700 0.3800 0.4080 0.4080 31,500
Feb 24, 2026
0.4600 0.4600 0.4250 0.4250 0.4250 11,500
Feb 23, 2026
0.4300 0.4990 0.4300 0.4500 0.4500 5,700
Feb 20, 2026
0.4210 0.4210 0.4210 0.4210 0.4210 400
Feb 19, 2026
0.3900 0.5090 0.3500 0.4720 0.4720 11,900
Feb 18, 2026
0.3500 0.4920 0.3500 0.4200 0.4200 7,700
Feb 17, 2026
0.4000 0.4000 0.3500 0.3500 0.3500 3,200
Feb 13, 2026
0.4000 0.4000 0.4000 0.4000 0.4000 9,000
Feb 12, 2026
0.4610 0.4720 0.2500 0.4720 0.4720 41,800
Feb 11, 2026
0.4200 0.4900 0.4200 0.4900 0.4900 12,700
Feb 10, 2026
0.5100 0.5100 0.3550 0.3800 0.3800 8,600
Feb 9, 2026
0.3410 0.4700 0.3410 0.3980 0.3980 3,000
Feb 6, 2026
0.4030 0.4100 0.3730 0.4000 0.4000 17,800
Feb 5, 2026
0.4660 0.4990 0.4030 0.4030 0.4030 6,700
Feb 4, 2026
0.4490 0.5100 0.3100 0.4900 0.4900 17,800
Feb 3, 2026
0.4670 0.4880 0.4670 0.4880 0.4880 14,700
Feb 2, 2026
0.4700 0.5080 0.4700 0.4900 0.4900 28,900
Jan 30, 2026
0.3000 0.4760 0.3000 0.4760 0.4760 1,400
Jan 29, 2026
0.4200 0.5000 0.3220 0.5000 0.5000 3,600
Jan 28, 2026
0.4490 0.5500 0.3610 0.5190 0.5190 14,600
Jan 27, 2026
0.5000 0.5700 0.5000 0.5460 0.5460 8,600
Jan 26, 2026
0.4510 0.5740 0.4500 0.4600 0.4600 22,000
Jan 23, 2026
0.5490 0.5740 0.4410 0.5740 0.5740 2,400
Jan 22, 2026
0.4400 0.5910 0.4400 0.5760 0.5760 10,900
Jan 21, 2026
0.5010 0.5700 0.4300 0.4300 0.4300 6,100
Jan 20, 2026
0.5300 0.5400 0.4100 0.5010 0.5010 5,300
Jan 16, 2026
0.6300 0.6500 0.5400 0.5900 0.5900 6,400
Jan 15, 2026
0.5890 0.5900 0.5400 0.5400 0.5400 2,000
Jan 14, 2026
0.6150 0.6500 0.5100 0.5930 0.5930 6,600
Jan 13, 2026
0.5400 0.6600 0.5000 0.6150 0.6150 11,200
Jan 12, 2026
0.6220 0.6500 0.4730 0.5500 0.5500 22,200
Jan 9, 2026
0.6610 0.7200 0.5890 0.6220 0.6220 44,600
Jan 8, 2026
0.6200 0.6580 0.5400 0.6580 0.6580 34,400
Jan 7, 2026
0.5500 0.7200 0.5500 0.6200 0.6200 83,900
Jan 6, 2026
0.5190 0.6270 0.5190 0.5430 0.5430 124,800
Jan 5, 2026
0.3220 0.6090 0.2600 0.5700 0.5700 580,900
Jan 2, 2026
1.2600 1.2700 0.7020 0.7400 0.7400 1,922,100
Dec 31, 2025
1.3600 1.4800 1.3000 1.3000 1.3000 74,200
Dec 30, 2025
1.4400 1.5000 1.3200 1.3600 1.3600 49,800
Dec 29, 2025
1.3600 1.5000 1.2900 1.4900 1.4900 59,700
Dec 26, 2025
1.1400 1.3500 1.1250 1.3250 1.3250 68,000
Dec 24, 2025
1.2100 1.2200 1.1200 1.1500 1.1500 45,300
Dec 23, 2025
1.2500 1.2550 1.2350 1.2350 1.2350 11,200
Dec 22, 2025
1.1800 1.2600 1.1700 1.2400 1.2400 60,900
Dec 19, 2025
1.3000 1.3100 1.1900 1.1900 1.1900 49,600
Dec 18, 2025
1.4100 1.4100 1.2500 1.2900 1.2900 70,000
Dec 17, 2025
1.4810 1.5190 1.3400 1.3700 1.3700 56,300
Dec 16, 2025
1.5500 1.5630 1.4800 1.5200 1.5200 43,200
Dec 15, 2025
1.6200 1.6300 1.5300 1.5700 1.5700 43,300
Dec 12, 2025
1.5600 1.6760 1.5500 1.6500 1.6500 114,000
Dec 11, 2025
1.6000 1.6000 1.5410 1.5800 1.5800 43,100
Dec 10, 2025
1.5800 1.7000 1.5400 1.6800 1.6800 100,100
Dec 9, 2025
1.6100 1.6500 1.4600 1.6200 1.6200 564,400
Dec 8, 2025
1.7500 1.7700 1.5200 1.6500 1.6500 180,500
Dec 5, 2025
1.7140 1.8030 1.6000 1.6700 1.6700 83,500
Dec 4, 2025
1.8400 1.8400 1.6400 1.6800 1.6800 126,200
Dec 3, 2025
1.8200 1.8900 1.7280 1.8050 1.8050 54,800
Dec 2, 2025
1.9000 1.9700 1.8600 1.8900 1.8900 85,400
Dec 1, 2025
2.0000 2.0390 1.8380 1.9500 1.9500 151,500
Nov 28, 2025
1.9100 2.1300 1.9100 2.1300 2.1300 128,700
Nov 26, 2025
2.2700 2.3800 2.2300 2.2300 2.2300 85,900
Nov 25, 2025
2.3500 2.3500 2.1800 2.2300 2.2300 89,300
Nov 24, 2025
2.1200 2.3460 2.0950 2.2700 2.2700 113,600
Nov 21, 2025
1.9900 2.1500 1.9690 2.0700 2.0700 56,100
Nov 20, 2025
2.1100 2.2000 1.9600 2.0200 2.0200 48,600
Nov 19, 2025
2.1900 2.2480 1.9500 2.0200 2.0200 69,200
Nov 18, 2025
2.0300 2.2400 1.9930 2.2000 2.2000 26,500
Nov 17, 2025
2.0800 2.1000 2.0200 2.0700 2.0700 36,700
Nov 14, 2025
2.0900 2.1000 2.0100 2.0300 2.0300 23,600
Nov 13, 2025
1.9600 2.1140 1.9600 2.1000 2.1000 223,000
Nov 12, 2025
2.0010 2.0580 1.9000 1.9200 1.9200 26,200
Nov 11, 2025
1.8730 2.0500 1.8400 2.0100 2.0100 47,000
Nov 10, 2025
1.9300 2.0200 1.8300 1.8900 1.8900 87,000
Nov 7, 2025
2.0210 2.1000 2.0210 2.0600 2.0600 44,000
Nov 6, 2025
2.1100 2.2200 1.8750 2.0500 2.0500 90,300
Nov 5, 2025
2.1500 2.1900 2.0900 2.1400 2.1400 29,300
Nov 4, 2025
2.2200 2.2900 2.1400 2.1500 2.1500 32,900
Nov 3, 2025
2.0900 2.4600 2.0900 2.2500 2.2500 252,900
Oct 31, 2025
2.4600 2.6650 2.3900 2.5700 2.5700 111,500

Related Tickers

Mobilize your Website
View Site in Mobile | Classic
Share by: