FATN vs NTCT vs DDOG vs FTNT

For growth investors, Datadog, Inc.

(DDOG) is the stronger pick with 27. 7% revenue growth year-over-year, versus 4. 5% for NetScout Systems, Inc. (NTCT). FatPipe, Inc. Common Stock (FATN) offers the better valuation at 17. 4x trailing P/E (20. 8x forward), making it the more compelling value choice. Analysts rate FatPipe, Inc. Common Stock (FATN) a "Buy" — based on 1 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, FatPipe, Inc.

Common Stock (FATN) is the cheapest at 17. 4x versus Datadog, Inc. at 772. 3x. On forward P/E, NetScout Systems, Inc. is actually cheaper at 16. 8x — 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: NetScout Systems, Inc. wins at 0. 44x versus Fortinet, Inc. 's 1. 37x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Fortinet, Inc.

(FTNT) delivered a total return of +214. 6%, compared to +33. 4% for NetScout Systems, Inc. (NTCT). Over 10 years, the gap is even starker: FTNT returned +1955% versus NTCT's +64. 2%. 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), Fortinet, Inc.

(FTNT) is the lower-risk stock at 1. 03β versus FatPipe, Inc. Common Stock's 2. 17β — meaning FATN is approximately 110% more volatile than FTNT relative to the S&P 500. On balance sheet safety, NetScout Systems, Inc. (NTCT) carries a lower debt/equity ratio of 2% versus 81% for Fortinet, Inc. — giving it more financial flexibility in a downturn.

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

(DDOG) is pulling ahead at 27. 7% versus 4. 5% for NetScout Systems, Inc. (NTCT). On earnings-per-share growth, the picture is similar: FatPipe, Inc. Common Stock grew EPS 133. 3% year-over-year, compared to -41. 2% for Datadog, Inc.. Over a 3-year CAGR, DDOG leads at 26. 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.

Fortinet, Inc.

(FTNT) is the more profitable company, earning 27. 3% net margin versus 3. 1% for Datadog, Inc. — meaning it keeps 27. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: FTNT leads at 30. 6% versus -1. 3% for DDOG. At the gross margin level — before operating expenses — FTNT leads at 80. 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, NetScout Systems, Inc. (NTCT) is the more undervalued stock at a PEG of 0. 44x versus Fortinet, Inc. 's 1. 37x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, NetScout Systems, Inc. (NTCT) trades at 16. 8x forward P/E versus 95. 6x for Datadog, Inc. — 78. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for NTCT: -6. 5% to $38. 00.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Fortinet, Inc.

(FTNT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 03), +1955% 10Y return). FatPipe, Inc. Common Stock (FATN) carries a higher beta of 2. 17 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. 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.

In terms of investment character: FATN is a small-cap high-growth stock; NTCT is a small-cap quality compounder stock; DDOG is a mid-cap high-growth stock; FTNT 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.