Protagenic Therapeutics, Inc.
PTIXNASDAQHealthcare● Active
$0.50
$-0.03(-5.66%)
Market Cap$905104
P/E Ratio—
52W High$6.2
52W Low$0.25
Protagenic Therapeutics, Inc.（PTIX）股票价格历史
关键价位里程碑、OHLCV 表、年度回报、同业与 What If。
ptix · 日线历史（复权）· FMP · 截至 2026年6月5日
5-Year High5Y
$234.64
Jun 11, 2021
-99.8% from here
5-Year Low5Y
$0.2500
Feb 12, 2026
+100.0% from low
IPO Priceadj.
$126.56
Apr 27, 2021
-99.6% since IPO
1 Year Ago
$3.64
Jun 9, 2025
-86.3% in 1Y
5 Years Ago
$132.16
Jun 9, 2021
-99.6% in 5Y
10 Years Ago
—
—
+0.0% in 10Y
Historical Price Data · PTIX
| Date↓ | Open↕ | High↕ | Low↕ | Close↕ | Close (Unadj.) ⓘ | Volume↕ | Change %↕ |
|---|---|---|---|---|---|---|---|
| Jun 5, 2026 | $0.50 | $0.50 | $0.50 | $0.50 | $0.50 | 4K | +0.00% |
| Jun 4, 2026 | $0.53 | $0.62 | $0.50 | $0.50 | $0.50 | 7K | -6.02% |
| Jun 3, 2026 | $0.50 | $0.53 | $0.50 | $0.53 | $0.53 | 4K | +6.00% |
| Jun 2, 2026 | $0.50 | $0.55 | $0.50 | $0.50 | $0.50 | 4K | +0.00% |
| Jun 1, 2026 | $0.40 | $0.55 | $0.40 | $0.50 | $0.50 | 5K | +24.44% |
| May 29, 2026 | $0.54 | $0.54 | $0.54 | $0.54 | $0.54 | 0K | +0.00% |
| May 28, 2026 | $0.40 | $0.54 | $0.40 | $0.54 | $0.54 | 2K | +35.41% |
| May 27, 2026 | $0.53 | $0.53 | $0.40 | $0.52 | $0.52 | 3K | -0.95% |
| May 26, 2026 | $0.50 | $0.65 | $0.43 | $0.55 | $0.55 | 6K | +9.20% |
| May 22, 2026 | $0.62 | $0.62 | $0.62 | $0.62 | $0.62 | 0K | +0.00% |
| May 21, 2026 | $0.62 | $0.62 | $0.62 | $0.62 | $0.62 | 0K | +0.00% |
| May 20, 2026 | $0.45 | $0.65 | $0.44 | $0.65 | $0.65 | 4K | +44.44% |
| May 19, 2026 | $0.65 | $0.65 | $0.65 | $0.65 | $0.65 | 0K | +0.00% |
| May 18, 2026 | $0.49 | $0.65 | $0.49 | $0.65 | $0.65 | 0K | +32.65% |
| May 15, 2026 | $0.65 | $0.65 | $0.65 | $0.65 | $0.65 | 1K | +0.00% |
| May 14, 2026 | $0.65 | $0.65 | $0.65 | $0.65 | $0.65 | 25K | +0.00% |
| May 13, 2026 | $0.49 | $0.49 | $0.49 | $0.49 | $0.49 | 25K | +0.00% |
| May 12, 2026 | $0.65 | $0.65 | $0.43 | $0.48 | $0.48 | 34K | -25.54% |
| May 11, 2026 | $0.82 | $0.90 | $0.53 | $0.65 | $0.65 | 6K | -20.63% |
| May 8, 2026 | $0.64 | $0.80 | $0.62 | $0.79 | $0.79 | 8K | +24.41% |
Showing 1–20 of 1,254 records
Annual Stock Price Performance · PTIX
Jan 1 → Dec 31 · 6 years2026-60.3%$1.26 → $0.50
-60.3%
2025-82.5%$7.41 → $1.30
-82.5%
2024-46.7%$12.88 → $6.86
-46.7%
2023-46.2%$25.76 → $13.86
-46.2%
2022-71.4%$78.40 → $22.40
-71.4%
2021-43.0%$136.08 → $77.56
-43.0%
Best Year2021 · -43.0%
Worst Year2025 · -82.5%
Positive Years0 / 6
Avg Annual Return-58.4%
6Y Total Return-99.6%
6Y CAGR~-60.7% / yr
Similar Companies in Healthcare
View sector
Eli Lilly and Company
LLY.TO
$41.30+0.00%
Mkt Cap $1.43T
Eli Lilly and Company
LLY
$1,149.15+0.00%
Mkt Cap $1.08T
Johnson & Johnson
JNJ
$232.16+0.00%
Mkt Cap $558.9B
AbbVie Inc.
ABBV
$223.07+0.00%
Mkt Cap $394.1B
UnitedHealth Group Incorporated
UNH
$406.57+0.00%
Mkt Cap $369.2B
Merck & Co., Inc.
MRK
$119.52+0.00%
Mkt Cap $295.2B
AstraZeneca PLC
AZN
$181.55+0.00%
Mkt Cap $281.6B
Novartis AG
NVS
$146.42+0.00%
Mkt Cap $279.4B
Amgen Inc.
AMGN
$345.73+0.00%
Mkt Cap $186.6B
Novo Nordisk A/S
NVO
$41.02+0.00%
Mkt Cap $182.3BWhat If You Invested in PTIX?
If you invested $1,000 in PTIX at IPO (split-adj.) — how much would it be worth today?
INVESTED$1,000
→TODAY WORTH$4
Total Return-99.6%
CAGR~-66.9% / yr
Profit$-996
Based on Apr 27, 2021 · $126.56Split & dividend adjustedNo fees assumed
Want a detailed breakdown?
Try the full calculator with custom amounts, dates & DRIP.
Full Calculator →Try the full calculator with custom amounts, dates & DRIP.
关于价格历史与 OHLCV 数据
Protagenic Therapeutics, Inc.（PTIX）所属板块为 Healthcare，主要交易场所为 NASDAQ。本页行情快照中的最近价为 $0.50。下方的图表与 OHLCV 表可查看历史开高低收与成交量。
年度表现条、同行业相似公司，以及 What If 假设计算器，便于在同一页面对比中长期收益。价格在注明处为拆股等调整后的日线数据；本页内容仅供信息参考，不构成投资建议。
数据：FMP 日线收盘 · 注明处为拆股等调整价 · 不构成投资建议
常见问题
PTIX 价格历史 · 5 个问题日线数据来自市场数据商（Financial Modeling Prep）。拆股等公司行为可能体现在复权序列中；重要决策请以券商或官方披露为准。
PTIX 历史股价FMP 日线复权 OHLCV