SONM vs KOSS

For growth investors, Koss Corporation (KOSS) is the stronger pick with 2.

9% revenue growth year-over-year, versus -37. 7% for Sonim Technologies, Inc. (SONM). 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.

Over the past 5 years, Koss Corporation (KOSS) delivered a total return of -75.

7%, compared to -99. 6% for Sonim Technologies, Inc. (SONM). Over 10 years, the gap is even starker: KOSS returned +91. 0% versus SONM's -100. 0%. 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), Sonim Technologies, Inc.

(SONM) is the lower-risk stock at 1. 36β versus Koss Corporation's 1. 62β — meaning KOSS is approximately 19% more volatile than SONM relative to the S&P 500.

By revenue growth (latest reported year), Koss Corporation (KOSS) is pulling ahead at 2.

9% versus -37. 7% for Sonim Technologies, Inc. (SONM). On earnings-per-share growth, the picture is similar: Koss Corporation grew EPS 6. 6% year-over-year, compared to -338. 5% for Sonim Technologies, Inc.. Over a 3-year CAGR, SONM leads at 2. 2% 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.

Koss Corporation (KOSS) is the more profitable company, earning -6.

9% net margin versus -57. 7% for Sonim Technologies, Inc. — meaning it keeps -6. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: KOSS leads at -13. 8% versus -57. 7% for SONM. At the gross margin level — before operating expenses — KOSS leads at 37. 8%, 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.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Sonim Technologies, Inc.

(SONM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding. Koss Corporation (KOSS) carries a higher beta of 1. 62 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (SONM: -100. 0%, KOSS: +91. 0%), 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.

Both stocks operate in the Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

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.