Stock listing
OTC:PTIX Protagenic Therapeutics, Inc. Stock
Follow Protagenic Therapeutics, Inc. into a list and get an email when it puts out news.
Share price · OTC:PTIX
$0.63 USD -0.02 (-3.1%)
Close on Nov 4, 2026
- Day range
- $0.63 – $0.63 USDNov 4, 2026
- Volume
- 139 sharesNov 4, 2026
- Market cap
- $1.14M USDAt the close on Nov 4, 2026 · price × 1.81M shares outstanding
- 52-week range
- $0.128 – $2.38 USDLowest and highest trades, Nov 5, 2025 – Nov 4, 2026
- Traded on an average day
- $10,049 USDMedian day 1,850 shares · 10 days with no trades · last 3 months, Aug 4, 2026 – Nov 4, 2026
Daily closes
Last 3 months, Aug 4, 2026 – Nov 4, 2026 · OTC:PTIX · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $0.63 | -0.02 | -3.1% | $0.63 | $0.63 | $0.63 | 139 | |
| $0.65 | +0.03 | +4.8% | $0.66 | $0.66 | $0.65 | 1,000 | |
| $0.62 | -0.018 | -2.8% | $0.62 | $0.62 | $0.62 | 1,006 | |
| $0.638 | -0.008 | -1.2% | $0.638 | $0.638 | $0.638 | 2,700 | |
| $0.646 | -0.007 | -1.1% | $0.648 | $0.648 | $0.642 | 1,700 | |
| $0.653 | 0.00 | 0.0% | $0.653 | $0.653 | $0.653 | 0 | |
| $0.653 | +0.005 | +0.8% | $0.653 | $0.653 | $0.653 | 100 | |
| $0.648 | -0.072 | -10.0% | $0.72 | $0.72 | $0.648 | 3,500 | |
| $0.72 | -0.015 | -2.0% | $0.72 | $0.72 | $0.72 | 900 | |
| $0.735 | +0.015 | +2.1% | $0.735 | $0.735 | $0.735 | 500 | |
| $0.72 | -0.03 | -4.0% | $0.72 | $0.72 | $0.72 | 100 | |
| $0.75 | 0.00 | 0.0% | $0.75 | $0.75 | $0.75 | 0 | |
| $0.75 | 0.00 | 0.0% | $0.763 | $0.763 | $0.75 | 1,300 | |
| $0.75 | 0.00 | 0.0% | $0.75 | $0.75 | $0.75 | 0 | |
| $0.75 | -0.05 | -6.3% | $0.75 | $0.75 | $0.75 | 200 | |
| $0.80 | -0.006 | -0.7% | $0.80 | $0.80 | $0.80 | 800 | |
| $0.806 | 0.00 | 0.0% | $0.806 | $0.806 | $0.806 | 1,100 | |
| $0.806 | +0.036 | +4.7% | $0.75 | $0.806 | $0.75 | 1,000 | |
| $0.77 | 0.00 | 0.0% | $0.77 | $0.77 | $0.77 | 0 | |
| $0.77 | 0.00 | 0.0% | $0.77 | $0.77 | $0.77 | 0 | |
| $0.77 | 0.00 | 0.0% | $0.77 | $0.77 | $0.77 | 0 | |
| $0.77 | -0.004 | -0.5% | $0.786 | $0.786 | $0.77 | 2,000 | |
| $0.774 | 0.00 | 0.0% | $0.774 | $0.774 | $0.774 | 0 | |
| $0.774 | -0.006 | -0.8% | $0.78 | $0.78 | $0.774 | 1,200 | |
| $0.78 | -0.03 | -3.7% | $0.80 | $0.801 | $0.78 | 5,700 | |
| $0.81 | +0.002 | +0.2% | $0.832 | $0.832 | $0.81 | 900 | |
| $0.808 | +0.028 | +3.6% | $0.82 | $0.82 | $0.808 | 1,200 | |
| $0.78 | +0.006 | +0.8% | $0.774 | $0.78 | $0.774 | 300 | |
| $0.774 | -0.042 | -5.1% | $0.805 | $0.805 | $0.774 | 4,100 | |
| $0.816 | -0.044 | -5.1% | $0.816 | $0.816 | $0.816 | 1,300 | |
| $0.86 | 0.00 | 0.0% | $0.87 | $0.87 | $0.86 | 2,400 | |
| $0.86 | -0.046 | -5.1% | $0.865 | $0.884 | $0.86 | 800 | |
| $0.906 | -0.008 | -0.9% | $0.914 | $0.93 | $0.906 | 3,400 | |
| $0.914 | +0.185 | +25.4% | $0.73 | $0.914 | $0.73 | 33,500 | |
| $0.729 | -0.111 | -13.2% | $0.769 | $0.769 | $0.729 | 10,300 | |
| $0.84 | +0.05 | +6.3% | $0.77 | $0.84 | $0.765 | 3,300 | |
| $0.79 | -0.04 | -4.8% | $0.81 | $0.81 | $0.79 | 11,400 | |
| $0.83 | -0.041 | -4.7% | $0.808 | $0.85 | $0.808 | 6,700 | |
| $0.871 | 0.00 | 0.0% | $0.81 | $0.871 | $0.81 | 400 | |
| $0.871 | -0.049 | -5.3% | $0.90 | $0.90 | $0.81 | 3,100 | |
| $0.92 | -0.106 | -10.3% | $0.91 | $0.938 | $0.85 | 28,100 | |
| $1.026 | -0.034 | -3.2% | $1.00 | $1.09 | $0.90 | 25,800 | |
| $1.06 | +0.06 | +6.0% | $0.95 | $1.06 | $0.95 | 1,700 | |
| $1.00 | -0.05 | -4.8% | $1.02 | $1.02 | $0.95 | 10,700 | |
| $1.05 | -0.14 | -11.8% | $1.19 | $1.19 | $1.05 | 17,700 | |
| $1.19 | -0.01 | -0.8% | $1.225 | $1.24 | $1.13 | 26,200 | |
| $1.20 | +0.22 | +22.4% | $1.11 | $1.23 | $1.11 | 30,100 | |
| $0.98 | +0.045 | +4.8% | $0.935 | $1.11 | $0.935 | 45,800 | |
| $0.935 | +0.045 | +5.1% | $0.85 | $0.935 | $0.77 | 36,600 | |
| $0.89 | -0.06 | -6.3% | $0.95 | $1.01 | $0.864 | 18,000 | |
| $0.95 | -0.14 | -12.8% | $1.18 | $1.20 | $0.85 | 43,400 | |
| $1.09 | +0.289 | +36.1% | $0.85 | $1.32 | $0.85 | 115,600 | |
| $0.801 | +0.201 | +33.5% | $0.649 | $0.91 | $0.63 | 140,600 | |
| $0.60 | +0.25 | +71.4% | $0.40 | $0.613 | $0.40 | 40,700 | |
| $0.35 | -0.01 | -2.8% | $0.342 | $0.37 | $0.342 | 4,100 | |
| $0.36 | 0.00 | 0.0% | $0.36 | $0.36 | $0.36 | 0 | |
| $0.36 | 0.00 | 0.0% | $0.36 | $0.36 | $0.36 | 0 | |
| $0.36 | 0.00 | 0.0% | $0.36 | $0.363 | $0.321 | 2,500 | |
| $0.36 | 0.00 | 0.0% | $0.36 | $0.36 | $0.36 | 0 | |
| $0.36 | +0.04 | +12.5% | $0.36 | $0.36 | $0.36 | 300 | |
| $0.32 | -0.03 | -8.6% | $0.30 | $0.32 | $0.30 | 4,700 | |
| $0.35 | +0.04 | +12.9% | $0.27 | $0.413 | $0.27 | 48,200 | |
| $0.31 | +0.09 | +40.9% | $0.31 | $0.31 | $0.31 | 100 | |
| $0.22 | -0.039 | -15.1% | $0.25 | $0.25 | $0.22 | 4,000 | |
| $0.259 | +0.049 | +23.3% | $0.25 | $0.259 | $0.25 | 9,000 | |
| $0.21 | +0.027 | +14.8% | $0.18 | $0.21 | $0.18 | 2,600 |
- Ticker
- OTC:PTIX
- Asset type
- Stock
- Sector
- Health care
- Industry
- Biotechnology
- Exchange
- OTC
- Currency
- USD
Calls
Replays
Protagenic Therapeutics (OTC:PTIX) Q4 2023 Earnings Call
Mon, Apr 01, 2024 · 4:30 PM ET
Watch Transcript
Decks
Investor Presentation (August 2021)
Investor deck · 28 slides · August 2021
Protagenic Therapeutics, Inc.\new — Investor Presentation (April 2021)
Investor deck · 28 slides · Apr 21, 2021
Protagenic Therapeutics, Inc.\new — Investor Presentation (April 2021)
Investor deck · 28 slides · Apr 8, 2021
Traffix — Merger or Acquisition (December 2007)
Merger or acquisition · 30 slides · Dec 5, 2007
Protagenic Therapeutics, Inc. on 6ix
- Sector
- Health care
- Industry
- Biotechnology
- Calls
- 1 call with a replay · 1 with a transcript · latest Apr 1, 2024
- Decks
- 4 decks · latest August 2021
Log in to ask 6ix AI your own questions about Protagenic Therapeutics, Inc.