Compare STMicroelectronics N.V. (STM) vs QUALCOMM Incorporated (QCOM) Stock

STMicroelectronics N.V. (STM) offers the better valuation at 20.2x trailing P/E (29.0x forward), making it the more compelling value choice. Analysts rate STMicroelectronics N.V. (STM) a "Buy" — based on 28 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, STMicroelectronics N.V. (STM) is the cheapest at 20.2x versus QUALCOMM Incorporated at 28.4x. On forward P/E, QUALCOMM Incorporated is actually cheaper at 12.7x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: STMicroelectronics N.V. wins at 3.71x versus QUALCOMM Incorporated's 6.13x.

Over the past 5 years, QUALCOMM Incorporated (QCOM) delivered a total return of +13.3%, compared to -8.3% for STMicroelectronics N.V. (STM). A $10,000 investment in QCOM five years ago would be worth approximately $11K today (assuming dividends reinvested). Over 10 years, the gap is even starker: STM returned +535.1% versus QCOM's +234.4%. 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), QUALCOMM Incorporated (QCOM) is the lower-risk stock at 1.48β versus STMicroelectronics N.V.'s 1.87β — meaning STM is approximately 26% more volatile than QCOM relative to the S&P 500. On balance sheet safety, STMicroelectronics N.V. (STM) carries a lower debt/equity ratio of 18% versus 77% for QUALCOMM Incorporated — giving it more financial flexibility in a downturn.

QUALCOMM Incorporated (QCOM) is the more profitable company, earning 12.5% net margin versus 11.7% for STMicroelectronics N.V. — meaning it keeps 12.5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: QCOM leads at 27.9% versus 12.6% for STM. At the gross margin level — before operating expenses — QCOM leads at 55.4%, 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, STMicroelectronics N.V. (STM) is the more undervalued stock at a PEG of 3.71x versus QUALCOMM Incorporated's 6.13x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, QUALCOMM Incorporated (QCOM) trades at 12.7x forward P/E versus 29.0x for STMicroelectronics N.V. — 16.3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for QCOM: 13.4% to $161.50.

All stocks in this comparison pay dividends. QUALCOMM Incorporated (QCOM) offers the highest yield at 2.4%, versus 0.9% for STMicroelectronics N.V. (STM).

For long-horizon retirement investors, QUALCOMM Incorporated (QCOM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (2.4% yield, +234.4% 10Y return). STMicroelectronics N.V. (STM) carries a higher beta of 1.87 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (QCOM: +234.4%, STM: +535.1%), 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.