OSS vs MRCY vs SCSC vs AAON vs PLAB

For growth investors, AAON, Inc.

(AAON) is the stronger pick with 20. 1% revenue growth year-over-year, versus -41. 1% for One Stop Systems, Inc. (OSS). ScanSource, Inc. (SCSC) offers the better valuation at 14. 5x trailing P/E (11. 0x forward), making it the more compelling value choice. Analysts rate One Stop Systems, Inc. (OSS) a "Buy" — based on 7 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, ScanSource, Inc.

(SCSC) is the cheapest at 14. 5x versus AAON, Inc. at 100. 2x. On forward P/E, ScanSource, Inc. is actually cheaper at 11. 0x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Photronics, Inc. wins at 0. 65x versus AAON, Inc. 's 12. 01x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Photronics, Inc.

(PLAB) delivered a total return of +281. 5%, compared to +34. 3% for ScanSource, Inc. (SCSC). Over 10 years, the gap is even starker: AAON returned +612. 1% versus SCSC's +9. 7%. 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), ScanSource, Inc.

(SCSC) is the lower-risk stock at 1. 48β versus Photronics, Inc. 's 2. 88β — meaning PLAB is approximately 95% more volatile than SCSC relative to the S&P 500. On balance sheet safety, Photronics, Inc. (PLAB) carries a lower debt/equity ratio of 0% versus 48% for AAON, Inc. — giving it more financial flexibility in a downturn.

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

(AAON) is pulling ahead at 20. 1% versus -41. 1% for One Stop Systems, Inc. (OSS). On earnings-per-share growth, the picture is similar: One Stop Systems, Inc. grew EPS 133. 8% year-over-year, compared to -36. 1% for AAON, Inc.. Over a 3-year CAGR, AAON leads at 17. 5% 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.

Photronics, Inc.

(PLAB) is the more profitable company, earning 16. 1% net margin versus -4. 2% for Mercury Systems, Inc. — meaning it keeps 16. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PLAB leads at 24. 5% versus -10. 5% for OSS. At the gross margin level — before operating expenses — OSS leads at 46. 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, Photronics, Inc. (PLAB) is the more undervalued stock at a PEG of 0. 65x versus AAON, Inc. 's 12. 01x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, ScanSource, Inc. (SCSC) trades at 11. 0x forward P/E versus 91. 8x for Mercury Systems, Inc. — 80. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for MRCY: 5. 2% to $92. 67.

In this comparison, AAON (0.

3% yield) pays a dividend. OSS, MRCY, SCSC, PLAB do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, AAON, Inc.

(AAON) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+612. 1% 10Y return). One Stop Systems, Inc. (OSS) carries a higher beta of 2. 37 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AAON: +612. 1%, OSS: +209. 4%), 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 (OSS (Technology) and MRCY (Industrials) and SCSC (Technology) and AAON (Industrials) and PLAB (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: OSS is a small-cap quality compounder stock; MRCY is a small-cap quality compounder stock; SCSC is a small-cap deep-value stock; AAON is a mid-cap high-growth stock; PLAB is a small-cap quality compounder stock. 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.