CMSC vs ATO vs CMS vs NI

For growth investors, NiSource Inc.

(NI) is the stronger pick with 21. 8% revenue growth year-over-year, versus 12. 9% for Atmos Energy Corporation (ATO). CMS Energy Corporation 5. 875% J (CMSC) offers the better valuation at 6. 5x trailing P/E (5. 9x forward), making it the more compelling value choice. Analysts rate CMS Energy Corporation (CMS) a "Buy" — based on 29 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, CMS Energy Corporation 5.

875% J (CMSC) is the cheapest at 6. 5x versus Atmos Energy Corporation at 24. 4x. On forward P/E, CMS Energy Corporation 5. 875% J is actually cheaper at 5. 9x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: CMS Energy Corporation 5. 875% J wins at 0. 99x versus CMS Energy Corporation's 3. 18x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, NiSource Inc.

(NI) delivered a total return of +100. 8%, compared to +10. 1% for CMS Energy Corporation 5. 875% J (CMSC). Over 10 years, the gap is even starker: ATO returned +179. 6% versus CMSC's +36. 7%. 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), Atmos Energy Corporation (ATO) is the lower-risk stock at -0.

00β versus CMS Energy Corporation 5. 875% J's 0. 69β — meaning CMSC is approximately -20318% more volatile than ATO relative to the S&P 500. On balance sheet safety, Atmos Energy Corporation (ATO) carries a lower debt/equity ratio of 69% versus 195% for CMS Energy Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), NiSource Inc.

(NI) is pulling ahead at 21. 8% versus 12. 9% for Atmos Energy Corporation (ATO). On earnings-per-share growth, the picture is similar: NiSource Inc. grew EPS 20. 4% year-over-year, compared to 6. 0% for CMS Energy Corporation. Over a 3-year CAGR, NI leads at 4. 3% 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.

Atmos Energy Corporation (ATO) is the more profitable company, earning 25.

5% net margin versus 12. 5% for CMS Energy Corporation — meaning it keeps 25. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ATO leads at 33. 2% versus 20. 2% for CMS. At the gross margin level — before operating expenses — CMS leads at 60. 9%, 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, CMS Energy Corporation 5. 875% J (CMSC) is the more undervalued stock at a PEG of 0. 99x versus CMS Energy Corporation's 3. 18x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, CMS Energy Corporation 5. 875% J (CMSC) trades at 5. 9x forward P/E versus 22. 9x for NiSource Inc. — 16. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CMS: 9. 5% to $81. 00.

All stocks in this comparison pay dividends.

CMS Energy Corporation 5. 875% J (CMSC) offers the highest yield at 9. 6%, versus 1. 9% for Atmos Energy Corporation (ATO).

For long-horizon retirement investors, Atmos Energy Corporation (ATO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0.

00), 1. 9% yield, +179. 6% 10Y return). Both have compounded well over 10 years (ATO: +179. 6%, CMSC: +36. 7%), 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: CMSC is a small-cap deep-value stock; ATO is a mid-cap quality compounder stock; CMS is a mid-cap quality compounder stock; NI is a mid-cap high-growth 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.