A maker of cloud and AI networking gear, Arista builds the Ethernet switches, EOS operating system, and CloudVision management platform that keep data centers, campuses, and wide-area networks running. It was founded in 2004 by Andy Bechtolsheim (a Sun Microsystems co-founder), David Cheriton, and Kenneth Duda, and launched in 2008 under the name Arista — a nod to the Greek word "aristos," meaning "best."
Arista Networks reports Q2 2026 revenue of $3.036B, up 37.7% year-over-year.
Revenue for the quarter ended June 30, 2026 was $3.036 billion, a 12.1% increase from Q1 2026 and a 37.7% increase from Q2 2025.
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GAAP diluted EPS was $0.95 and non-GAAP diluted EPS was $1.02, compared to $0.70 and $0.73 in the prior-year quarter.
GAAP operating margin was 45.4% and non-GAAP operating margin was 49.9%, compared to 44.7% and 48.8% in Q2 2025.
For Q3 2026, the company expects revenue of approximately $3.3 billion, non-GAAP operating margin of 48-49%, and non-GAAP diluted EPS between $1.06 and $1.08.
The company introduced 1.6 Tbps AI fabric platforms and was named a Leader in the 2026 Gartner Magic Quadrant for Enterprise Wired and Wireless LAN.
2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits
Arista Networks reports Q1 2026 revenue of $2.709 billion, up 35.1% year-over-year.
GAAP diluted EPS was $0.80 and non-GAAP diluted EPS was $0.87, compared to $0.64 and $0.66 in Q1 2025.
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Q1 2026 revenue was $2.709 billion, an increase of 8.9% from Q4 2025 and 35.1% from Q1 2025.
GAAP operating margin was 42.7% and non-GAAP operating margin was 47.8%, flat year-over-year.
Cash flow from operations was $1.69 billion in Q1 2026.
For Q2 2026, the company expects revenue of approximately $2.8 billion, non-GAAP operating margin of 46-47%, and non-GAAP diluted EPS of approximately $0.88.
2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits
Arista Networks reports Q4 2025 revenue of $2.488B, up 28.9% YoY; full-year revenue $9.006B, up 28.6%.
Q4 2025 GAAP net income was $955.8 million, or $0.75 per diluted share, compared to $801.0 million, or $0.62 per diluted share, in Q4 2024.
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Q4 2025 non-GAAP net income was $1.047 billion, or $0.82 per diluted share, compared to $849.6 million, or $0.66 per diluted share, in Q4 2024.
Full-year 2025 GAAP net income was $3.511 billion, or $2.75 per diluted share, compared to $2.852 billion, or $2.23 per diluted share, in 2024.
Full-year 2025 non-GAAP net income was $3.806 billion, or $2.98 per diluted share, compared to $2.971 billion, or $2.32 per diluted share, in 2024.
For Q1 2026, Arista expects revenue of approximately $2.6 billion, non-GAAP gross margin between approximately 62-63%, and non-GAAP operating margin of approximately 46%.
2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits
Arista Networks appoints Kenneth Duda as President and CTO, effective September 5, 2025.
Duda's expanded role includes overseeing cloud and AI systems engineering and business development.
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Kenneth Duda, co-founder and current CTO and SVP of Engineering, was appointed President and Chief Technology Officer, effective September 5, 2025.
No new agreements or compensation arrangements were entered into with Duda in connection with his appointment.
The company amended its bylaws to allow multiple individuals to hold the President role and updated the forum selection provision.
Tyson Lamoreaux was appointed Senior Vice President of Cloud and AI Networking, reporting to Chief Development Officer Hugh Holbrook.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year · 8.01 Other Events · 9.01 Financial Statements and Exhibits
Arista Networks reports Q2 2025 revenue of $2.205 billion, up 30.4% year-over-year.
GAAP net income was $888.8 million, or $0.70 per diluted share, compared to $665.4 million, or $0.52 per diluted share, in Q2 2024.
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Revenue for the quarter ended June 30, 2025 was $2.205 billion, a 10.0% increase from Q1 2025 and a 30.4% increase from Q2 2024.
Non-GAAP net income was $923.5 million, or $0.73 per diluted share, compared to $672.6 million, or $0.53 per diluted share, in Q2 2024.
GAAP gross margin was 65.2%, and non-GAAP gross margin was 65.6%.
For Q3 2025, the company expects revenue of approximately $2.25 billion, non-GAAP gross margin of approximately 64%, and non-GAAP operating margin of approximately 47%.
2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits
Arista Networks appoints Todd Nightingale as President and COO, effective July 1, 2025.
Nightingale previously served as CEO and board member of Fastly, Inc. (September 2022 to June 2025) and held senior roles at Cisco Systems, including EVP and GM of Enterprise Networking and Cloud.
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Todd Nightingale, age 45, was appointed President and Chief Operating Officer of Arista Networks on June 13, 2025, with employment starting on or about July 1, 2025.
He will receive an annual base salary of $350,000, eligibility for a prorated 2025 bonus, and participation in the company's bonus program starting fiscal year 2026.
Subject to approvals, he will receive RSUs valued at $30,000,000 vesting over approximately four years and PSUs valued at $2,000,000 tied to three six-month performance periods.
A severance agreement provides 12 months of base salary and equity acceleration benefits upon qualifying termination, with enhanced acceleration (50% of unvested equity) if terminated without cause within 12 months after a change in control.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 9.01 Financial Statements and Exhibits