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ANET Falls 21.2% in a Month: Is This Now a Buying Opportunity?
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Key Takeaways
ANET has dropped 24.6% in four weeks despite 58.5% revenue growth and a 55.8% jump in third-quarter earnings.
Arista expects AI fabric revenues to double to $7 billion in 2027, backed by growing Etherlink adoption.
ANET's 32.0X forward P/E, customer concentration and $11.4 billion in purchase commitments pose risks.
Arista Networks, Inc. (ANET - Free Report) has fallen 21.2% in the past four weeks, even as its latest results showed accelerating growth. That disconnect raises a straightforward question for investors: has the selloff improved the risk-reward setup, or are the shares still vulnerable to execution and valuation pressure?
Image Source: Zacks Investment Research
The operating picture remains favorable, but the stock still carries a premium multiple and meaningful customer-concentration risk. The case for buying the dip therefore depends on whether Arista can convert its expanding AI opportunity into sustained growth without further margin or deployment setbacks.
ANET’s Fundamentals Remain Strong Despite the Drop
Third-quarter 2026 revenues increased 58.5% year over year to $3.66 billion. Non-GAAP earnings rose 55.8% to $1.20 per share. Revenues topped the Zacks Consensus Estimate of $3.31 billion by 10.4%, while earnings exceeded the $1.08 consensus mark by 11.1%.
Arista also raised its full-year 2026 revenue outlook for the fourth time to approximately $13.3 billion, implying 48% annual growth. For 2027, management projects revenue growth of 38% to 40%, with non-GAAP operating margin expected at approximately 49%.
Arista’s AI Opportunity is Still Expanding
Arista surpassed 100 Etherlink customers in the third quarter. Its Ethernet-based architecture supports AI training and inference across scale-out and scale-across deployments, while the Etherlink portfolio now includes at least 25 switches designed for AI networking applications. AI fabric revenues are expected to double to approximately $7 billion in 2027.
Competition is intensifying as the opportunity expands. Cisco Systems, Inc. (CSCO - Free Report) is shipping new Silicon One systems aimed at large-scale AI infrastructure, while NVIDIA Corporation (NVDA - Free Report) continues to broaden its Spectrum-X Ethernet platform for AI data centers. That activity validates the size of the market but also raises the execution bar for Arista.
ANET Still Carries Execution and Concentration Risks
Management expects at least three and potentially four customers to each contribute more than 10% of 2026 revenues. That level of concentration leaves results exposed to changes in individual capital budgets, deployment schedules and accelerator strategies, especially as AI fabric revenues become a larger part of the business.
Working-capital commitments add another layer of risk. Inventory rose to $3.2 billion in the third quarter from $2.5 billion in the second quarter, while purchase commitments increased to $11.4 billion from $9.7 billion. Roughly 80% of those commitments are expected to be used within 12 months.
Arista’s Premium Valuation Limits the Margin for Error
ANET trades at 32.0X forward 12-month earnings per share, above the 27.2X multiple for the Zacks sub-industry. The premium is below the stock’s five-year median of 40.5X, but it still implies that investors are paying up for sustained growth.
That leaves less room for disappointment if pricing competition increases, AI deployments slow or profitability softens. Non-GAAP gross margin was 64% in the third quarter, down from 65.2% a year earlier, and management expects a 62% to 64% range for 2027.
ANET’s Growth Signals Support a Selective Bull Case
The pullback has made ANET more attractive than it was before the recent decline, but the setup is not without constraints. Rapid earnings and revenue growth, rising AI adoption and a lower valuation than its five-year median support selective interest, while customer concentration and heavy purchase commitments argue against treating the decline as an automatic bargain.
ANET currently carries a Zacks Rank #2 (Buy). Its Growth Score of B and Momentum Score of A are favorable complements to that rank. The Value Score of D points to weaker value characteristics, while the VGM Score of C reflects a more mixed blend across value, growth and momentum. That combination supports a selective rather than indiscriminate approach to the shares. You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.
View the Zacks #1 Rank List
Image: Bigstock
ANET Falls 21.2% in a Month: Is This Now a Buying Opportunity?
Key Takeaways
Arista Networks, Inc. (ANET - Free Report) has fallen 21.2% in the past four weeks, even as its latest results showed accelerating growth. That disconnect raises a straightforward question for investors: has the selloff improved the risk-reward setup, or are the shares still vulnerable to execution and valuation pressure?
Image Source: Zacks Investment Research
The operating picture remains favorable, but the stock still carries a premium multiple and meaningful customer-concentration risk. The case for buying the dip therefore depends on whether Arista can convert its expanding AI opportunity into sustained growth without further margin or deployment setbacks.
ANET’s Fundamentals Remain Strong Despite the Drop
Third-quarter 2026 revenues increased 58.5% year over year to $3.66 billion. Non-GAAP earnings rose 55.8% to $1.20 per share. Revenues topped the Zacks Consensus Estimate of $3.31 billion by 10.4%, while earnings exceeded the $1.08 consensus mark by 11.1%.
Arista also raised its full-year 2026 revenue outlook for the fourth time to approximately $13.3 billion, implying 48% annual growth. For 2027, management projects revenue growth of 38% to 40%, with non-GAAP operating margin expected at approximately 49%.
Arista’s AI Opportunity is Still Expanding
Arista surpassed 100 Etherlink customers in the third quarter. Its Ethernet-based architecture supports AI training and inference across scale-out and scale-across deployments, while the Etherlink portfolio now includes at least 25 switches designed for AI networking applications. AI fabric revenues are expected to double to approximately $7 billion in 2027.
Competition is intensifying as the opportunity expands. Cisco Systems, Inc. (CSCO - Free Report) is shipping new Silicon One systems aimed at large-scale AI infrastructure, while NVIDIA Corporation (NVDA - Free Report) continues to broaden its Spectrum-X Ethernet platform for AI data centers. That activity validates the size of the market but also raises the execution bar for Arista.
ANET Still Carries Execution and Concentration Risks
Management expects at least three and potentially four customers to each contribute more than 10% of 2026 revenues. That level of concentration leaves results exposed to changes in individual capital budgets, deployment schedules and accelerator strategies, especially as AI fabric revenues become a larger part of the business.
Working-capital commitments add another layer of risk. Inventory rose to $3.2 billion in the third quarter from $2.5 billion in the second quarter, while purchase commitments increased to $11.4 billion from $9.7 billion. Roughly 80% of those commitments are expected to be used within 12 months.
Arista’s Premium Valuation Limits the Margin for Error
ANET trades at 32.0X forward 12-month earnings per share, above the 27.2X multiple for the Zacks sub-industry. The premium is below the stock’s five-year median of 40.5X, but it still implies that investors are paying up for sustained growth.
That leaves less room for disappointment if pricing competition increases, AI deployments slow or profitability softens. Non-GAAP gross margin was 64% in the third quarter, down from 65.2% a year earlier, and management expects a 62% to 64% range for 2027.
ANET’s Growth Signals Support a Selective Bull Case
The pullback has made ANET more attractive than it was before the recent decline, but the setup is not without constraints. Rapid earnings and revenue growth, rising AI adoption and a lower valuation than its five-year median support selective interest, while customer concentration and heavy purchase commitments argue against treating the decline as an automatic bargain.
ANET currently carries a Zacks Rank #2 (Buy). Its Growth Score of B and Momentum Score of A are favorable complements to that rank. The Value Score of D points to weaker value characteristics, while the VGM Score of C reflects a more mixed blend across value, growth and momentum. That combination supports a selective rather than indiscriminate approach to the shares. You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.