The PE Ratio as of December 2025 (TTM) for ProtoSource Corporation (PSCO) is -0.40

According to ProtoSource Corporation’s latest financial reports and current stock price. The company's current PE Ratio is -0.40. This represents a change of -99.61% compared to the average of -101.58 of the last 4 quarters.

ProtoSource Corporation (PSCO) Historical PE Ratio (quarterly & annually)

How has PSCO PE Ratio performed in the past?

The mean historical PE Ratio of ProtoSource Corporation over the last ten years is -110.31. The current -0.40 PE Ratio has changed -63.74% with respect to the historical average. Over the past ten years (40 quarters), PSCO's PE Ratio was at its highest in in the September 2008 quarter at 4.80. The PE Ratio was at its lowest in in the June 2021 quarter at -1497.70.

ProtoSource Corporation (PSCO) PE Ratio by Quarter and Year

Discovering the peaks and valleys of ProtoSource Corporation 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.

ProtoSource Corporation (PSCO) Average PE Ratio

How has PSCO PE Ratio performed in the past?

The current PE Ratio of ProtoSource Corporation (PSCO) is greater than its 3-year, greater than its 5-year, and greater than its 10-year historical averages

ProtoSource Corporation (PSCO) PE Ratio vs. Peers

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

ProtoSource Corporation’s PE Ratio is greater than ABV Consulting, Inc. (-5746.85), less than Genufood Energy Enzymes Corp. (-0.39), less than Borealis Exploration Limited (0), greater than Silverton Energy, Inc. (-48.12), greater than International Luxury Products Inc. (-57.57), greater than Annabidiol Corp. (-281.16), greater than American Premium Mining Corporation (-21.17), greater than Inception Growth Acquisition Limited (-1.48), greater than TechCom, Inc. (-217.67), less than Funr (14.98),

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