KMI vs WMB

For growth investors, The Williams Companies, Inc.

(WMB) is the stronger pick with 13. 8% revenue growth year-over-year, versus 12. 5% for Kinder Morgan, Inc. (KMI). Kinder Morgan, Inc. (KMI) offers the better valuation at 23. 6x trailing P/E (22. 8x forward), making it the more compelling value choice. Analysts rate The Williams Companies, Inc. (WMB) a "Buy" — based on 34 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, Kinder Morgan, Inc.

(KMI) is the cheapest at 23. 6x versus The Williams Companies, Inc. at 35. 6x. On forward P/E, Kinder Morgan, Inc. is actually cheaper at 22. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Kinder Morgan, Inc. wins at 0. 24x versus The Williams Companies, Inc. 's 0. 49x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, The Williams Companies, Inc.

(WMB) delivered a total return of +242. 2%, compared to +116. 8% for Kinder Morgan, Inc. (KMI). Over 10 years, the gap is even starker: WMB returned +349. 2% versus KMI's +144. 8%. 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), Kinder Morgan, Inc.

(KMI) is the lower-risk stock at 0. 10β versus The Williams Companies, Inc. 's 0. 17β — meaning WMB is approximately 79% more volatile than KMI relative to the S&P 500. On balance sheet safety, Kinder Morgan, Inc. (KMI) carries a lower debt/equity ratio of 100% versus 196% for The Williams Companies, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), The Williams Companies, Inc.

(WMB) is pulling ahead at 13. 8% versus 12. 5% for Kinder Morgan, Inc. (KMI). On earnings-per-share growth, the picture is similar: The Williams Companies, Inc. grew EPS 17. 6% year-over-year, compared to 17. 1% for Kinder Morgan, Inc.. Over a 3-year CAGR, WMB leads at 2. 9% 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.

The Williams Companies, Inc.

(WMB) is the more profitable company, earning 21. 9% net margin versus 18. 0% for Kinder Morgan, Inc. — meaning it keeps 21. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: WMB leads at 36. 8% versus 28. 4% for KMI. At the gross margin level — before operating expenses — KMI leads at 43. 7%, 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, Kinder Morgan, Inc. (KMI) is the more undervalued stock at a PEG of 0. 24x versus The Williams Companies, Inc. 's 0. 49x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Kinder Morgan, Inc. (KMI) trades at 22. 8x forward P/E versus 32. 6x for The Williams Companies, Inc. — 9. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for KMI: 8. 4% to $35. 00.

All stocks in this comparison pay dividends.

Kinder Morgan, Inc. (KMI) offers the highest yield at 3. 6%, versus 2. 6% for The Williams Companies, Inc. (WMB).

For long-horizon retirement investors, The Williams Companies, Inc.

(WMB) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 17), 2. 6% yield, +349. 2% 10Y return). Both have compounded well over 10 years (WMB: +349. 2%, KMI: +144. 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.

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

In terms of investment character: KMI is a mid-cap income-oriented stock; WMB is a mid-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.