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1.57
4.85%
-0.08
After Hours:
1.57
Protagenic Therapeutics Inc Stock (PTIX) Price History
The historical daily chart and data for Protagenic Therapeutics Inc stock (PTIX), show that the latest closing stock price as of December 15, 2025, is $1.57.
- Protagenic Therapeutics Inc all-time high stock price is $26.18, occurred on May 22, 2024.
- The lowest Protagenic Therapeutics Inc stock price recorded was $0.00 on November 24, 2023. Since then, Protagenic Therapeutics Inc's stock price has risen over to $1.57 now.
- The 52-week high stock price for PTIX is $14.28, representing a 809.55% increase from the current share price, occurred on May 19, 2025.
- The 52-week low stock price for PTIX is $1.46, indicating a -7.01% decrease from the current share price, occurred on December 09, 2025.
- The closing price of Protagenic Therapeutics Inc (PTIX) stock in the beginning of 2024 was $5.60. The stock closed the year at $1.60, a loss of over -71.43% for the year.
The table below shows more information about PTIX historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec 15, 2025 | $1.63 | $1.53 | $0.0999 | 42,044.0 | -4.85% |
| Dec 12, 2025 | $1.68 | $1.55 | $0.1262 | 112,850.0 | +4.43% |
| Dec 11, 2025 | $1.60 | $1.54 | $0.059 | 43,074.0 | -5.95% |
| Dec 10, 2025 | $1.70 | $1.54 | $0.1599 | 96,002.0 | +3.70% |
| Dec 09, 2025 | $1.65 | $1.46 | $0.19 | 560,889.0 | -1.82% |
| Dec 08, 2025 | $1.77 | $1.52 | $0.25 | 180,455.0 | -1.20% |
| Dec 05, 2025 | $1.80 | $1.60 | $0.2027 | 67,790.0 | -2.34% |
| Dec 04, 2025 | $1.84 | $1.64 | $0.20 | 119,892.0 | -5.26% |
| Dec 03, 2025 | $1.89 | $1.73 | $0.1618 | 49,049.0 | -4.50% |
| Dec 02, 2025 | $1.97 | $1.86 | $0.11 | 84,702.0 | -3.08% |
| Dec 01, 2025 | $2.04 | $1.84 | $0.2008 | 151,032.0 | -8.45% |
| Nov 28, 2025 | $2.13 | $1.91 | $0.22 | 128,740.0 | -4.48% |
| Nov 26, 2025 | $2.38 | $2.23 | $0.15 | 66,820.0 | +0.00% |
| Nov 25, 2025 | $2.35 | $2.18 | $0.17 | 89,302.0 | -1.76% |
| Nov 24, 2025 | $2.35 | $2.10 | $0.251 | 112,475.0 | +9.66% |
| Nov 21, 2025 | $2.15 | $1.97 | $0.1807 | 56,058.0 | +2.48% |
| Nov 20, 2025 | $2.20 | $1.96 | $0.24 | 48,509.0 | +0.00% |
| Nov 19, 2025 | $2.25 | $1.95 | $0.298 | 67,216.0 | -8.18% |
| Nov 18, 2025 | $2.24 | $1.99 | $0.247 | 25,561.0 | +6.28% |
| Nov 17, 2025 | $2.10 | $2.02 | $0.08 | 36,673.0 | +1.97% |
Protagenic Therapeutics Inc Stock (PTIX) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Protagenic Therapeutics Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of PTIX shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Protagenic Therapeutics Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.
Protagenic Therapeutics Inc Stock (PTIX) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $2.04 | $1.46 | $0.5788 | 1,549,823.0 | -26.29% |
| Nov, 2025 | $2.46 | $1.83 | $0.63 | 1,470,327.0 | -17.12% |
| Oct, 2025 | $3.77 | $2.39 | $1.38 | 1,669,473.0 | -25.07% |
| Sep, 2025 | $4.55 | $2.75 | $1.80 | 2,377,908.0 | -4.72% |
| Aug, 2025 | $6.20 | $2.25 | $3.95 | 166,123,349.0 | +22.45% |
| Jul, 2025 | $4.04 | $2.90 | $1.14 | 3,192,022.0 | -19.45% |
| Jun, 2025 | $4.19 | $3.30 | $0.89 | 3,643,345.0 | -5.19% |
| May, 2025 | $14.28 | $2.35 | $11.93 | 111,013,140.3 | +22.77% |
| Apr, 2025 | $8.65 | $2.51 | $6.15 | 14,522,063.4 | +14.81% |
| Mar, 2025 | $5.88 | $2.73 | $3.15 | 1,225,196.4 | -36.03% |
| Feb, 2025 | $5.46 | $3.36 | $2.10 | 619,657.1 | -17.34% |
| Jan, 2025 | $8.67 | $5.08 | $3.60 | 461,978.0 | -24.69% |
Protagenic Therapeutics Inc Stock (PTIX) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $11.20 | $6.16 | $5.04 | 511,639.4 | -8.97% |
| Nov, 2024 | $15.26 | $7.29 | $7.97 | 496,152.1 | -9.94% |
| Oct, 2024 | $11.48 | $6.86 | $4.62 | 112,060.7 | +4.42% |
| Sep, 2024 | $15.54 | $7.56 | $7.98 | 993,780.3 | +3.49% |
| Aug, 2024 | $11.87 | $7.00 | $4.87 | 11,072.6 | -14.62% |
| Jul, 2024 | $13.09 | $9.80 | $3.29 | 9,859.4 | -21.55% |
| Jun, 2024 | $19.32 | $12.04 | $7.28 | 14,967.6 | -31.44% |
| May, 2024 | $26.18 | $17.07 | $9.11 | 32,559.6 | -4.13% |
| Apr, 2024 | $25.20 | $16.15 | $9.05 | 15,425.0 | -21.33% |
| Mar, 2024 | $26.18 | $12.46 | $13.72 | 28,383.2 | +66.67% |
| Feb, 2024 | $16.80 | $11.48 | $5.32 | 8,930.5 | +10.53% |
| Jan, 2024 | $14.56 | $10.27 | $4.29 | 3,924.2 | -4.04% |
Protagenic Therapeutics Inc Stock (PTIX) Price History 2023
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2023 | $17.36 | $9.52 | $7.84 | 17,873.7 | +32.00% |
| Nov, 2023 | $12.29 | $9.94 | $2.35 | 7,366.6 | -3.47% |
| Oct, 2023 | $26.04 | $10.16 | $15.88 | 46,039.7 | -57.77% |
| Sep, 2023 | $27.72 | $22.68 | $5.04 | 10,895.9 | -3.16% |
| Aug, 2023 | $30.66 | $25.27 | $5.39 | 5,632.9 | -11.68% |
| Jul, 2023 | $31.08 | $27.44 | $3.64 | 3,015.1 | +5.97% |
| Jun, 2023 | $29.26 | $24.08 | $5.18 | 4,389.2 | +2.01% |
| May, 2023 | $32.48 | $25.20 | $7.28 | 9,866.3 | +6.42% |
| Apr, 2023 | $27.86 | $21.56 | $6.30 | 11,664.0 | +8.09% |
| Mar, 2023 | $32.06 | $17.48 | $14.58 | 24,568.9 | +0.51% |
| Feb, 2023 | $34.02 | $23.24 | $10.78 | 4,906.3 | -20.33% |
| Jan, 2023 | $35.28 | $21.96 | $13.32 | 9,918.9 | +35.02% |
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