Arista Networks, Inc. (ANET)
ANET moved a median of -0.10% 30 minutes after news, and +0.10% by the close. How ANET actually reacts to news — the realized, point-in-time move the market made, measured across 758 labeled events over the last three years with zero look-ahead.
ANET’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.12% | 55% | 757 |
| 30-min | -0.10% | 47% | 757 |
| 60-min | +0.01% | 51% | 757 |
| to close | +0.10% | 55% | 753 |
| Middle 50% of ANET reactions | -0.81% to +0.69% |
|---|---|
| Median reaction (30-min) | -0.10% |
| Measured reactions | 758 |
Half of all Arista Networks, Inc. news events land between -0.81% and +0.69% at 30 minutes.
Reaction stats as of 2026-08-31. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ANET reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 41 | -0.26% | 44% | +0.92% |
| Analyst downgrades | 21 | -1.37% | 33% | -0.29% |
| Coverage initiations | 20 | +0.04% | 50% | +0.31% |
| Rating reiterations | 204 | -0.14% | 38% | -0.33% |
| Price-target raises | 91 | +0.00% | 51% | -0.34% |
| Price-target cuts | 12 | -0.36% | 25% | -0.64% |
Last 3 years, pulled 2026-08-31. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. See how ANET ranks against every other measured name →
That’s how ANET usually reacts — get an email when it moves on news →Email me when ANET moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ANET's baseline. Nothing else.
Recent ANET events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Inside the Multibillion-Dollar Race to Build the AI Economy's Physical Backbone | Press release | GlobeNewswire | +0.81% | +1.01% | |
| Form 10-Q Arista Networks, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -6.09% | -7.33% | |
| Arista Networks, Inc. Reports Second Quarter 2026 Financial Results | Press release | Business Wire | -6.09% | -7.33% | |
| Form 8-K Arista Networks, Inc. For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | -6.09% | -7.33% | |
| Arista Networks Introduces AI-Driven Zero Trust Branch | Press release | Business Wire | -1.05% | +0.08% | |
| Arista Networks to Announce Q2 2026 Financial Results on Tuesday, August 4, 2026 | Press release | Business Wire | +2.14% | +8.95% | |
| Arista Introduces Next-Generation 1.6Terabit Portfolio for AI Fabrics | Press release | Business Wire | -1.53% | -3.54% | |
| Form 8-K Arista Networks, Inc. For: May 29 | SEC filing · Form 8-K | SEC EDGAR | -2.40% | -0.93% | |
| Form SD Arista Networks, Inc. | SEC filing · Form SD | SEC EDGAR | -0.13% | +0.82% | |
| Arista Networks Positioned as a Leader in the 2026 Gartner® Magic Quadrant™ for Enterprise Wired and Wireless LAN | Press release | Business Wire | +0.02% | -0.44% | |
| Form 10-Q Arista Networks, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.29% | -3.47% | |
| Arista Networks, Inc. Reports First Quarter 2026 Financial Results | Press release | Business Wire | -0.29% | -3.47% | |
| Form 8-K Arista Networks, Inc. For: May 05 | SEC filing · Form 8-K | SEC EDGAR | -0.29% | -3.47% | |
| Form ARS Arista Networks, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +1.20% | +1.47% | |
| Form DEF 14A Arista Networks, Inc. For: May 29 | SEC filing · Form DEF | SEC EDGAR | +1.20% | +1.47% | |
| Form DEFA14A Arista Networks, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +1.20% | +1.47% | |
| Arista Networks to Announce Q1 2026 Financial Results on Tuesday, May 5, 2026 | Press release | Business Wire | +1.39% | +1.17% | |
| Arista Announces XPO High Density Liquid Cooled Pluggable Optics | Press release | Business Wire | -0.23% | -2.69% | |
| Form 10-K Arista Networks, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.76% | +1.84% | |
| Arista Networks, Inc. Reports Fourth Quarter and Year End 2025 Financial Results | Press release | Business Wire | +1.65% | -2.26% | |
| Form 8-K Arista Networks, Inc. For: Feb 12 | SEC filing · Form 8-K | SEC EDGAR | +1.65% | -2.26% | |
| Arista Networks to Announce Q4 2025 Financial Results on Thursday, February 12, 2026 | Press release | Business Wire | -0.52% | -1.76% | |
| Arista Introduces Massive Scale Campus Mobility | Press release | Business Wire | +1.25% | +1.28% | |
| November Updates for NetZoom Visio Stencils Library of Data Center, Networking and AV Devices | Press release | PR Web | +1.25% | +1.28% | |
| Form 10-Q Arista Networks, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.83% | -1.46% | |
| Arista Networks, Inc. Reports Third Quarter 2025 Financial Results | Press release | Business Wire | +0.83% | -1.46% | |
| Form 8-K Arista Networks, Inc. For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | +0.83% | -1.46% | |
| Arista Networks Unveils Next Generation Data and AI Centers | Press release | Business Wire | +0.23% | +3.07% | |
| Arista Networks to Announce Q3 2025 Financial Results on Tuesday, November 4, 2025 | Press release | Business Wire | +2.01% | +6.33% | |
| Form 8-K Arista Networks, Inc. For: Sep 05 | SEC filing · Form 8-K | SEC EDGAR | +0.62% | +1.00% | |
| Defiance Launches ANEL: 2X Long ETF for Arista Networks, Inc. | Press release | GlobeNewswire | -0.49% | +1.10% | |
| Form 10-Q Arista Networks, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.24% | +2.42% | |
| Arista Networks, Inc. Reports Second Quarter 2025 Financial Results | Press release | Business Wire | +0.24% | +2.42% | |
| Form 8-K Arista Networks, Inc. For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | +0.24% | +2.42% | |
| Arista Networks to Announce Q2 2025 Financial Results on Tuesday, August 5, 2025 | Press release | Business Wire | +0.95% | +2.34% | |
| Arista Networks Expands AI-Driven Campus and Branch Networking Offerings | Press release | Business Wire | -0.28% | -3.32% | |
| Form 8-K Arista Networks, Inc. For: Jun 13 | SEC filing · Form 8-K | SEC EDGAR | -0.37% | -4.90% | |
| Form 8-K Arista Networks, Inc. For: May 30 | SEC filing · Form 8-K | SEC EDGAR | +0.96% | +0.10% | |
| Form SD Arista Networks, Inc. | SEC filing · Form SD | SEC EDGAR | +0.08% | -0.47% | |
| Form DEFA14A Arista Networks, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.41% | +0.09% | |
| Form 10-Q Arista Networks, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -2.74% | +0.51% | |
| Arista Networks, Inc. Reports First Quarter 2025 Financial Results | Press release | Business Wire | -2.74% | +0.51% | |
| Form 8-K Arista Networks, Inc. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -2.74% | +0.51% | |
| Form ARS Arista Networks, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.97% | -1.79% | |
| Form DEF 14A Arista Networks, Inc. For: May 30 | SEC filing · Form DEF | SEC EDGAR | -0.97% | -1.79% | |
| Form DEFA14A Arista Networks, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.97% | -1.79% | |
| Arista Networks to Announce Q1 2025 Financial Results on Tuesday, May 6, 2025 | Press release | Business Wire | +2.45% | +10.29% | |
| Form 8-K Arista Networks, Inc. For: Mar 14 | SEC filing · Form 8-K | SEC EDGAR | +0.55% | +0.57% | |
| Arista Introduces Intelligent Innovations for AI Networking | Press release | Business Wire | +0.12% | -2.66% | |
| Form 10-K Arista Networks, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.74% | -0.73% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ANET section they belong to.
Where else ANET is measured.
ANET earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Workday, Inc. - Class A (WDAY) | 764 | +0.11% | 55% |
| EXFO Inc - Subordinate Voting Shares (EXFO) | 761 | 0.00% | 41% |
| Perion Network Ltd - Ordinary Shares (PERI) | 756 | +0.16% | 56% |
| Manhattan Associates, Inc. (MANH) | 753 | +0.01% | 51% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Technology names, measured the same way →
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How the numbers are made.
How is Arista Networks, Inc.'s median reaction calculated?
Every labeled ANET news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 758 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 47% of ANET's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-08-31.
Does ANET's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.