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Acorn Energy Inc. (ACFN) vs Sono-Tek Corporation (SOTK)

Acorn Energy Inc. and Sono-Tek Corporation are both Scientific & Technical Instruments companies. Sono-Tek Corporation is the larger, with a market value of $68.4M against $36.5M — 1.9× the size. Acorn Energy Inc. trades at the lower P/E: 16.5× against 36.4×. Sono-Tek Corporation grew revenue faster over the last twelve months: 4.37% against −23.3%. Acorn Energy Inc. has the higher net margin (23.0% vs 9.32%) and the lower return on invested capital (8.18% vs 41.5%). Across the 21 metrics below, Sono-Tek Corporation leads on 13 and Acorn Energy Inc. on 8.

Valuation

Metric ACFN SOTK Scientific & Technical Instruments median
P/E 16.49 36.42 28.21
P/S 3.82 3.19 4.46
P/B 3.73 3.26 3.10
Price to free cash flow 28.24 9.53 24.15
EV/EBITDA 36.74 18.88 18.28
EV/Sales 3.41 2.46 4.64
Earnings yield 6.06% 2.75% 0.68%
Free cash flow yield 3.54% 10.50% 1.98%

Profitability

Metric ACFN SOTK Scientific & Technical Instruments median
Gross margin 80.82% 52.48% 47.24%
Operating margin 7.38% 10.23% 8.96%
Net margin 23.04% 9.32% 1.92%
Free cash flow margin 16.11% 33.63% 10.59%
Return on equity 26.01% 10.08% 2.66%
Return on assets 14.87% 8.09% 1.12%
Return on invested capital 8.18% 41.53% 4.79%

Growth

Metric ACFN SOTK Scientific & Technical Instruments median
Revenue growth (TTM) (23.33%) 4.37% 9.26%
EPS growth (last fiscal year) (60.56%) 37.50% 13.24%
Revenue growth, 5-year CAGR 14.15% 7.11% 7.89%
Net income growth, 5-year CAGR 105.19% 10.01% 0.00%

Health

Metric ACFN SOTK Scientific & Technical Instruments median
Debt to equity 0.00 0.00 0.00
Current ratio 1.51 4.42 2.30
Net debt to EBITDA (2.09) (5.94) 0.45

Dividend

Metric ACFN SOTK Scientific & Technical Instruments median
Dividend yield — — 0.62%
Payout ratio — — 0.22

Size

Metric ACFN SOTK Scientific & Technical Instruments median
Market cap 36.46m 68.36m 549.07m

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