GPI vs PAG

For growth investors, Group 1 Automotive, Inc.

(GPI) is the stronger pick with 13. 2% revenue growth year-over-year, versus -0. 2% for Penske Automotive Group, Inc. (PAG). Penske Automotive Group, Inc. (PAG) offers the better valuation at 12. 0x trailing P/E (12. 8x forward), making it the more compelling value choice. Analysts rate Group 1 Automotive, Inc. (GPI) a "Buy" — based on 24 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, Penske Automotive Group, Inc.

(PAG) is the cheapest at 12. 0x versus Group 1 Automotive, Inc. at 13. 7x. On forward P/E, Group 1 Automotive, Inc. is actually cheaper at 8. 3x — 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: Penske Automotive Group, Inc. wins at 0. 80x versus Group 1 Automotive, Inc. 's 0. 82x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Penske Automotive Group, Inc.

(PAG) delivered a total return of +102. 0%, compared to +101. 7% for Group 1 Automotive, Inc. (GPI). Over 10 years, the gap is even starker: GPI returned +474. 1% versus PAG's +422. 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), Penske Automotive Group, Inc.

(PAG) is the lower-risk stock at 0. 66β versus Group 1 Automotive, Inc. 's 0. 77β — meaning GPI is approximately 16% more volatile than PAG relative to the S&P 500. On balance sheet safety, Penske Automotive Group, Inc. (PAG) carries a lower debt/equity ratio of 158% versus 2% for Group 1 Automotive, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Group 1 Automotive, Inc.

(GPI) is pulling ahead at 13. 2% versus -0. 2% for Penske Automotive Group, Inc. (PAG). On earnings-per-share growth, the picture is similar: Penske Automotive Group, Inc. grew EPS -2. 5% year-over-year, compared to -31. 6% for Group 1 Automotive, Inc.. Over a 3-year CAGR, GPI leads at 11. 6% 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.

Penske Automotive Group, Inc.

(PAG) is the more profitable company, earning 2. 9% net margin versus 1. 4% for Group 1 Automotive, Inc. — meaning it keeps 2. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: GPI leads at 4. 2% versus 4. 0% for PAG. At the gross margin level — before operating expenses — PAG leads at 16. 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, Penske Automotive Group, Inc. (PAG) is the more undervalued stock at a PEG of 0. 80x versus Group 1 Automotive, Inc. 's 0. 82x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Group 1 Automotive, Inc. (GPI) trades at 8. 3x forward P/E versus 12. 8x for Penske Automotive Group, Inc. — 4. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for GPI: 38. 6% to $476. 67.

All stocks in this comparison pay dividends.

Penske Automotive Group, Inc. (PAG) offers the highest yield at 3. 1%, versus 0. 6% for Group 1 Automotive, Inc. (GPI).

For long-horizon retirement investors, Penske Automotive Group, Inc.

(PAG) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 66), 3. 1% yield, +422. 4% 10Y return). Both have compounded well over 10 years (PAG: +422. 4%, GPI: +474. 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 Consumer Cyclical 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.