Environmental Tectonics Corp. (OTCMKTS:ETCC) Sees Significant Growth in Short Interest

Posted by Scott Moore on Oct 26th, 2026

Environmental Tectonics Corp. (OTCMKTS:ETCC – Get Free Report) was the recipient of a large growth in short interest during the month of October. As of October 15th, there was short interest totaling 316 shares, a growth of 2,157.1% from the September 30th total of 14 shares. Currently, 0.0% of the shares of the company are sold short. Based on an average daily trading volume, of 15,166 shares, the days-to-cover ratio is currently 0.0 days.

Environmental Tectonics Stock Performance

Shares of ETCC traded down $0.10 during mid-day trading on Monday, hitting $1.71. The company’s stock had a trading volume of 24,350 shares, compared to its average volume of 18,916. Environmental Tectonics has a one year low of $0.68 and a one year high of $2.00. The stock’s 50-day moving average is $1.73 and its two-hundred day moving average is $1.57. The firm has a market capitalization of $16.36 million, a PE ratio of 34.17 and a beta of 1.15. The company has a debt-to-equity ratio of 2.59, a quick ratio of 1.57 and a current ratio of 1.60.

Environmental Tectonics (OTCMKTS:ETCC – Get Free Report) last posted its quarterly earnings data on Monday, October 19th. The aerospace company reported $0.06 earnings per share (EPS) for the quarter. The company had revenue of $18.32 million for the quarter. Environmental Tectonics had a net margin of 2.13% and a return on equity of 41.78%.

Environmental Tectonics Company Profile

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Environmental Tectonics Corporation (OTCMKTS: ETCC) is a Pennsylvania-based technology and engineering company that develops specialized training and simulation systems for aerospace, defense, and other safety-critical applications. Its products are designed to help pilots, aircrew, medical personnel, and other operators prepare for demanding operating conditions in controlled environments.

The company’s aerospace and defense offerings have included flight and aircrew training systems, spatial-disorientation trainers, altitude and hypobaric chambers, human centrifuges, and related motion or physiological simulation equipment.