NTCT vs CSCO vs VIAV vs ANET vs KEYS

For growth investors, Arista Networks, Inc.

(ANET) is the stronger pick with 28. 6% revenue growth year-over-year, versus -0. 8% for NetScout Systems, Inc. (NTCT). Cisco Systems, Inc. (CSCO) offers the better valuation at 36. 1x trailing P/E (22. 2x forward), making it the more compelling value choice. Analysts rate Cisco Systems, Inc. (CSCO) a "Buy" — based on 73 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, Cisco Systems, Inc.

(CSCO) is the cheapest at 36. 1x versus Viavi Solutions Inc. at 340. 3x. On forward P/E, NetScout Systems, Inc. is actually cheaper at 15. 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: Arista Networks, Inc. wins at 0. 99x versus Viavi Solutions Inc. 's 12. 09x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Arista Networks, Inc.

(ANET) delivered a total return of +590. 5%, compared to +42. 9% for NetScout Systems, Inc. (NTCT). Over 10 years, the gap is even starker: ANET returned +33. 7% versus NTCT's +66. 6%. 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), Cisco Systems, Inc.

(CSCO) is the lower-risk stock at 0. 92β versus Arista Networks, Inc. 's 2. 15β — meaning ANET is approximately 134% more volatile than CSCO relative to the S&P 500. On balance sheet safety, NetScout Systems, Inc. (NTCT) carries a lower debt/equity ratio of 5% versus 89% for Viavi Solutions Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Arista Networks, Inc.

(ANET) is pulling ahead at 28. 6% versus -0. 8% for NetScout Systems, Inc. (NTCT). On earnings-per-share growth, the picture is similar: Viavi Solutions Inc. grew EPS 225. 0% year-over-year, compared to -144. 4% for NetScout Systems, Inc.. Over a 3-year CAGR, ANET leads at 27. 1% 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.

Arista Networks, Inc.

(ANET) is the more profitable company, earning 39. 0% net margin versus -44. 6% for NetScout Systems, Inc. — meaning it keeps 39. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ANET leads at 42. 8% versus -44. 7% for NTCT. At the gross margin level — before operating expenses — NTCT leads at 78. 3%, 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, Arista Networks, Inc. (ANET) is the more undervalued stock at a PEG of 0. 99x versus Viavi Solutions Inc. 's 12. 09x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, NetScout Systems, Inc. (NTCT) trades at 15. 9x forward P/E versus 55. 2x for Viavi Solutions Inc. — 39. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ANET: 31. 4% to $186. 25.

In this comparison, CSCO (1.

7% yield) pays a dividend. NTCT, VIAV, ANET, KEYS do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Cisco Systems, Inc.

(CSCO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 92), 1. 7% yield, +301. 7% 10Y return). Arista Networks, Inc. (ANET) carries a higher beta of 2. 15 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CSCO: +301. 7%, ANET: +33. 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 Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: NTCT is a small-cap quality compounder stock; CSCO is a large-cap quality compounder stock; VIAV is a mid-cap quality compounder stock; ANET is a mid-cap high-growth stock; KEYS is a mid-cap quality compounder stock. CSCO pays a dividend while NTCT, VIAV, ANET, KEYS do not, making them suitable for different income and tax situations. 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.