LIQT vs POWI vs CDZI vs ZEUS vs CECO

For growth investors, Cadiz Inc.

(CDZI) is the stronger pick with 382. 6% revenue growth year-over-year, versus -10. 0% for Olympic Steel, Inc. (ZEUS). Olympic Steel, Inc. (ZEUS) offers the better valuation at 24. 3x trailing P/E (20. 7x forward), making it the more compelling value choice. Analysts rate Power Integrations, Inc. (POWI) a "Buy" — based on 16 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Olympic Steel, Inc.

(ZEUS) is the cheapest at 24. 3x versus Power Integrations, Inc. at 200. 6x. On forward P/E, Olympic Steel, Inc. is actually cheaper at 20. 7x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Olympic Steel, Inc. wins at 0. 49x versus CECO Environmental Corp. 's 1. 21x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, CECO Environmental Corp.

(CECO) delivered a total return of +1106%, compared to -96. 3% for LiqTech International, Inc. (LIQT). Over 10 years, the gap is even starker: CECO returned +1397% versus LIQT's -91. 3%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), LiqTech International, Inc.

(LIQT) is the lower-risk stock at 0. 52β versus Power Integrations, Inc. 's 2. 08β — meaning POWI is approximately 298% more volatile than LIQT relative to the S&P 500. On balance sheet safety, CECO Environmental Corp. (CECO) carries a lower debt/equity ratio of 8% versus 3% for Cadiz Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Cadiz Inc.

(CDZI) is pulling ahead at 382. 6% versus -10. 0% for Olympic Steel, Inc. (ZEUS). On earnings-per-share growth, the picture is similar: CECO Environmental Corp. grew EPS 280. 6% year-over-year, compared to -48. 8% for Olympic Steel, Inc.. Over a 3-year CAGR, CDZI leads at 157. 3% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

CECO Environmental Corp.

(CECO) is the more profitable company, earning 6. 5% net margin versus -324. 1% for Cadiz Inc. — meaning it keeps 6. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CECO leads at 6. 7% versus -242. 0% for CDZI. At the gross margin level — before operating expenses — POWI leads at 54. 5%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Olympic Steel, Inc. (ZEUS) is the more undervalued stock at a PEG of 0. 49x versus CECO Environmental Corp. 's 1. 21x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Olympic Steel, Inc. (ZEUS) trades at 20. 7x forward P/E versus 60. 5x for Power Integrations, Inc. — 39. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CDZI: 111. 9% to $10. 00.

In this comparison, CDZI (1.

6% yield), ZEUS (1. 2% yield), POWI (1. 1% yield) pay a dividend. LIQT, CECO do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, CECO Environmental Corp.

(CECO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1397% 10Y return). Power Integrations, Inc. (POWI) carries a higher beta of 2. 08 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CECO: +1397%, POWI: +264. 8%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (LIQT (Industrials) and POWI (Technology) and CDZI (Utilities) and ZEUS (Basic Materials) and CECO (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: LIQT is a small-cap quality compounder stock; POWI is a small-cap quality compounder stock; CDZI is a small-cap high-growth stock; ZEUS is a small-cap quality compounder stock; CECO is a small-cap high-growth stock. POWI, CDZI, ZEUS pay a dividend while LIQT, CECO do not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.