PTIX - Protagenic Therapeutics, Inc. Stock Price, Fair Value and News

PTIX is the stock ticker symbol of Protagenic Therapeutics, Inc.. Every public company that trades on a stock exchange gets a ticker symbol.

As of Wed Jan 28 2026, market cap of Protagenic Therapeutics, Inc. is 696.56 Thousand. The market capitalization is calculated by multiplying the stock price with the number of shares outstanding.

You can check PTIX's fair value in chart for subscribers.

The fair value guage provides a quick view whether PTIX is over valued or under valued. Whether Protagenic Therapeutics, Inc. is cheap or expensive depends on the assumptions which impact Protagenic Therapeutics, Inc.'s fair value. We provide several scenarios of inflation and growth to encompass these range of assumptions for PTIX.

As of Wed Jan 28 2026, PTIX's PE ratio (Price to Earnings) is -0.07 and Price to Sales (PS) ratio is 0.03. The price to earnings and price to sales ratio are two most important valuation metrics for any company. PE ratio tell us the number of years of earnings investors are ready to pay for owning the company. Historically, S&P500 price to earnings ratio has fallen below 12 during periods of gloom and gone past 30 during periods of euphoria. PTIX PE ratio will change depending on the future growth rate expectations of investors.

In the past 10 years, Protagenic Therapeutics, Inc. has provided -0.42 (multiply by 100 for percentage) rate of return.