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Environmental Tectonics Corporation

ETCC
43
Aerospace & Defense · Industrials
Winston Score
43
Winston is serious
Mixed quality — meaningful strengths and weaknesses.
Data as of Aug 23, 2026 · filings through May 31, 2026
How the score breaks down
Quality
Mixed
Growth
Weak
Cash Flow
Strong
Stability
Good
Valuation
Mixed

Winston Score History

The full picture

Environmental Tectonics Corporation builds specialized training equipment and systems used by military and civilian organizations. Its core products include flight simulators, aeromedical training devices, and disaster management training centers. The company also makes altitude chambers and centrifuges that help pilots and astronauts prepare for the physical stress of flight.

The company earns revenue by selling this equipment and providing long-term maintenance and support services to customers. It operates globally, selling to government defense agencies, air forces, and civil aviation authorities in the United States and dozens of other countries. Its main competitive advantage is its narrow focus on a small, technical market where switching costs are high and few competitors exist. The biggest risk the company faces is its dependence on government defense budgets, which can be cut or delayed, causing lumpy and unpredictable revenue from year to year.

Score breakdown

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Quality

Profit per sale
Gross Margin
24.1%
Thin — 24.1% gross margin
Profit after running costs
Operating Margin
6.2%
Modest — 6.2% operating margin
Return on the money invested
ROCE
18.0%
Strong — 18.0% return on capital

ROIC between 15% and 25%. Every dollar invested in the business earns 15 to 25 cents back per year.

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Growth

Sales growth
Sales YoY
-4.1%
Shrinking sales (-4.1% YoY)
Profit growth
EPS YoY
-88.0%
Earnings shrinking (-88.0% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is
EPS Consistency
3/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash
Cash Conversion
173%
Turns 173% of profit into real cash
Spare cash per sale
FCF Margin
5.2%
Thin free cash flow (5.2%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

What it owes vs what it owns
Debt / Equity
0.87
Moderate — manageable debt (0.87)
Covers its interest
Interest Cover
2.48x
Tight — interest eats into profit (2.5x)

Interest coverage between 1 and 3. Profits cover interest, but with little room to spare.

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Valuation

Price vs profit
P/E Ratio (TTM)
17.3x
no trend
Fair value — P/E 17.3

P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.

Cheaper or dearer next year
P/E vs Forward
N/A
not available
Data not available

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Dividends

Not applicable for this business.
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