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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 $96.0M against $47.0M — 2.0× the size. Acorn Energy Inc. trades at the lower P/E: 29.6× against 50.0×. Sono-Tek Corporation grew revenue faster over the last twelve months: 4.37% against −27.5%. Acorn Energy Inc. has the higher net margin (16.1% vs 9.32%) and the lower return on invested capital (9.78% 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 29.56 49.96 33.25
P/S 4.80 4.50 4.50
P/B 5.20 4.60 2.90
Price to free cash flow 37.93 13.43 24.81
EV/EBITDA 49.83 28.94 17.92
EV/Sales 4.38 3.76 4.71
Earnings yield 3.38% 2.00% 0.60%
Free cash flow yield 2.64% 7.45% 1.27%

Profitability

Metric ACFN SOTK Scientific & Technical Instruments median
Gross margin 80.29% 52.48% 45.75%
Operating margin 7.15% 10.23% 7.34%
Net margin 16.12% 9.32% 1.56%
Free cash flow margin 12.66% 33.63% 5.84%
Return on equity 19.57% 10.08% 2.87%
Return on assets 11.90% 8.09% 0.99%
Return on invested capital 9.78% 41.53% 3.88%

Growth

Metric ACFN SOTK Scientific & Technical Instruments median
Revenue growth (TTM) (27.50%) 4.37% 11.15%
EPS growth (last fiscal year) (60.56%) 37.50% 11.47%
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 2.12 4.42 2.24
Net debt to EBITDA (2.09) (5.94) 0.44

Dividend

Metric ACFN SOTK Scientific & Technical Instruments median
Dividend yield — — 0.58%
Payout ratio — — 0.36

Size

Metric ACFN SOTK Scientific & Technical Instruments median
Market cap 47.03m 95.95m 444.25m

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