Protagenic Therapeutics, Inc. - PE Ratio

The PE Ratio as of June 2026 (TTM) for Protagenic Therapeutics, Inc. (PTIX) is -0.03

According to Protagenic Therapeutics, Inc.’s latest financial reports and current stock price. The company's current PE Ratio is -0.03. This represents a change of -95.11% compared to the average of -0.61 of the last 4 quarters.

Protagenic Therapeutics, Inc. (PTIX) Historical PE Ratio (quarterly & annually)

How has PTIX PE Ratio performed in the past?

The mean historical PE Ratio of Protagenic Therapeutics, Inc. over the last ten years is -76.23. The current -0.03 PE Ratio has changed -96.06% with respect to the historical average. Over the past ten years (40 quarters), PTIX's PE Ratio was at its highest in in the December 2025 quarter at 0.29. The PE Ratio was at its lowest in in the September 2019 quarter at -657.80.

Protagenic Therapeutics, Inc. (PTIX) PE Ratio by Quarter and Year

Discovering the peaks and valleys of Protagenic Therapeutics, Inc. PE Ratio, unveiling quarterly and yearly fluctuations to gain insights into the company’s financial performance and market dynamics, offering valuable data for investors and analysts alike.

Protagenic Therapeutics, Inc. (PTIX) Average PE Ratio

How has PTIX PE Ratio performed in the past?

The current PE Ratio of Protagenic Therapeutics, Inc. (PTIX) is greater than its 3-year, greater than its 5-year, and greater than its 10-year historical averages

Protagenic Therapeutics, Inc. (PTIX) PE Ratio vs. Peers

How is PTIX’s PE Ratio compared to its peers?

Protagenic Therapeutics, Inc.’s PE Ratio is greater than Salarius Pharmaceuticals, Inc. (-0.19), greater than Lipella Pharmaceuticals Inc. (-0.07), greater than Artelo Biosciences, Inc. (-0.07), greater than Indaptus Therapeutics, Inc. (-0.62), less than Silexion Therapeutics Ltd. (0.06), greater than Revelation Biosciences, Inc. (-0.07), less than Carisma Therapeutics, Inc. (0.10), greater than SciSparc Ltd. (-0.03), greater than GT Biopharma, Inc. (-0.08), less than Psyence Biomedical Ltd. (1.77),

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