OGS vs SWX

For growth investors, ONE Gas, Inc.

(OGS) is the stronger pick with 16. 5% revenue growth year-over-year, versus -62. 0% for Southwest Gas Holdings, Inc. (SWX). Southwest Gas Holdings, Inc. (SWX) offers the better valuation at 14. 9x trailing P/E (21. 3x forward), making it the more compelling value choice. Analysts rate Southwest Gas Holdings, Inc. (SWX) a "Buy" — based on 13 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, Southwest Gas Holdings, Inc.

(SWX) is the cheapest at 14. 9x versus ONE Gas, Inc. at 19. 7x. On forward P/E, ONE Gas, Inc. is actually cheaper at 17. 9x — 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: Southwest Gas Holdings, Inc. wins at 2. 67x versus ONE Gas, Inc. 's 5. 11x.

Over the past 5 years, Southwest Gas Holdings, Inc.

(SWX) delivered a total return of +46. 9%, compared to +26. 5% for ONE Gas, Inc. (OGS). Over 10 years, the gap is even starker: OGS returned +79. 8% versus SWX's +69. 3%. 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), ONE Gas, Inc.

(OGS) is the lower-risk stock at -0. 00β versus Southwest Gas Holdings, Inc. 's 0. 06β — meaning SWX is approximately -1906% more volatile than OGS relative to the S&P 500. On balance sheet safety, Southwest Gas Holdings, Inc. (SWX) carries a lower debt/equity ratio of 89% versus 99% for ONE Gas, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), ONE Gas, Inc.

(OGS) is pulling ahead at 16. 5% versus -62. 0% for Southwest Gas Holdings, Inc. (SWX). On earnings-per-share growth, the picture is similar: Southwest Gas Holdings, Inc. grew EPS 120. 3% year-over-year, compared to 12. 1% for ONE Gas, Inc.. Over a 3-year CAGR, OGS leads at -2. 0% 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.

Southwest Gas Holdings, Inc.

(SWX) is the more profitable company, earning 22. 7% net margin versus 10. 9% for ONE Gas, Inc. — meaning it keeps 22. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: SWX leads at 24. 4% versus 18. 8% for OGS. At the gross margin level — before operating expenses — OGS leads at 58. 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.

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, Southwest Gas Holdings, Inc. (SWX) is the more undervalued stock at a PEG of 2. 67x versus ONE Gas, Inc. 's 5. 11x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, ONE Gas, Inc. (OGS) trades at 17. 9x forward P/E versus 21. 3x for Southwest Gas Holdings, Inc. — 3. 4x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for SWX: 5. 7% to $96. 00.

All stocks in this comparison pay dividends.

ONE Gas, Inc. (OGS) offers the highest yield at 3. 1%, versus 2. 7% for Southwest Gas Holdings, Inc. (SWX).

For long-horizon retirement investors, ONE Gas, Inc.

(OGS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0. 00), 3. 1% yield). Both have compounded well over 10 years (OGS: +79. 8%, SWX: +69. 3%), 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 Utilities sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: OGS is a small-cap high-growth stock; SWX is a small-cap deep-value 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.