Cerebras Systems Inc. (CBRS)
CBRS moved a median of -0.53% 30 minutes after news, and -0.37% by the close. How CBRS actually reacts to news — the realized, point-in-time move the market made, measured across 163 labeled events over the last three years with zero look-ahead.
CBRS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 47% | 163 |
| 30-min | -0.53% | 46% | 163 |
| 60-min | -1.39% | 37% | 163 |
| to close | -0.37% | 45% | 163 |
| Middle 50% of CBRS reactions | -3.38% to +2.23% |
|---|---|
| Median reaction (30-min) | -0.53% |
| Measured reactions | 163 |
Half of all Cerebras Systems Inc. news events land between -3.38% and +2.23% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How CBRS reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 11 | -3.94% | 27% | -6.73% |
| Coverage initiations | 32 | +4.92% | 88% | +11.66% |
| Rating reiterations | 26 | -0.01% | 50% | -0.65% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 3 further classes were observed with fewer than 10 measured events and are not published. See how CBRS ranks against every other measured name →
That’s how CBRS usually reacts — get an email when it moves on news →Email me when CBRS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CBRS's baseline. Nothing else.
Recent CBRS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Institute of Foundation Models and Inception42 Launch Jais 3: The World's Leading Arabic-Native AI for Speech, Writing and Agents | Press release | PR Newswire | -1.08% | +3.77% | |
| Gimlet Labs Adds Cerebras to Deliver Ultrafast AI Inference through Gimlet Cloud | Press release | GlobeNewswire | -1.34% | -3.79% | |
| Cerebras and Compute Nordic Finland Announce New 165 MW AI Data Centre in Mikkeli, Finland | Press release | GlobeNewswire | +0.33% | -3.78% | |
| Zone Frontier Inc. Announces Completion of Corporate Name Change | Press release | PR Newswire | +0.33% | -3.78% | |
| Cerebras and Callosum Partner to Deliver Ultra-Low-Latency Heterogeneous Agentic Inference | Press release | GlobeNewswire | +0.34% | -0.11% | |
| Mayfield Adds Aditya Singh as Partner to Expand AI Infrastructure Investing at Inception | Press release | Business Wire | +0.06% | +1.03% | |
| Cerebras Unveils CS-4: Up to 30 Times Faster than GPU-based Solutions | Press release | GlobeNewswire | -1.33% | -0.65% | |
| Cerebras to Host Livestream of 2026 SUPERNOVA Event | Press release | GlobeNewswire | -0.48% | -2.72% | |
| Cerebras Powers Ultrafast Mode for OpenAI’s GPT-5.6 Sol | Press release | GlobeNewswire | -0.23% | +2.53% | |
| Cerebras Systems Fast Inference Cloud Business Nearly Quadruples in Second Quarter 2026 | Press release | GlobeNewswire | +3.09% | +5.34% | |
| Form 10-Q Cerebras Systems Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +3.09% | +5.34% | |
| Form 8-K Cerebras Systems Inc. For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +3.09% | +5.34% | |
| Form S-8 POS Cerebras Systems Inc. | SEC filing · Form S-8 | SEC EDGAR | +3.09% | +5.34% | |
| Lovable and Cerebras Partner to Power AI Software Creation on the World's Fastest Inference Platform | Press release | GlobeNewswire | -1.20% | -2.19% | |
| AI's Trillion-Dollar Infrastructure Buildout is Fueling the Next Wave of Data Center Investment Opportunities | Press release | Canada Newswire | -0.26% | -11.08% | |
| Cerebras Systems Sets Date of Second-Quarter 2026 Financial Results | Press release | GlobeNewswire | +0.80% | +7.32% | |
| CrowdStrike and Cerebras Partner to Power AI Detection and Response on the World's Fastest Inference | Press release | GlobeNewswire | +9.51% | +2.18% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Cerebras Systems Inc. (CBRS) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | +1.01% | +6.40% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Cerebras Systems Inc. (CBRS) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.44% | -0.70% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Cerebras Systems Inc. (CBRS) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | +0.51% | +0.21% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Cerebras Systems Inc. (CBRS) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -4.23% | -6.29% | |
| Cerebras Systems Inc. (CBRS) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.89% | -3.83% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Cerebras Systems Inc. (CBRS) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.52% | +8.51% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Cerebras Systems Inc. (CBRS) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | -1.45% | +8.61% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Cerebras Systems Inc. (CBRS) And Encourages Stockholders to Reach Out | Press release | ACCESS Newswire | -0.42% | +4.86% | |
| Cerebras Systems Announces Strong First Quarter 2026 Results | Press release | GlobeNewswire | -4.69% | -12.71% | |
| Cerebras Systems Sets Date of First-Quarter 2026 Financial Results | Press release | GlobeNewswire | +1.12% | +4.71% | |
| Tradr Launches Two Leveraged ETFs on Cerebras Systems | Press release | PR Newswire | -0.40% | -4.44% | |
| Cerebras Systems Announces Closing of Initial Public Offering | Press release | GlobeNewswire | +1.89% | +1.77% | |
| Leverage Shares by Themes Follows Cerebras Systems IPO with Introduction of New 2X Single-Stock ETF: CBRG | Press release | GlobeNewswire | +0.23% | -6.54% | |
| Cerebras Systems Announces Pricing of Initial Public Offering | Press release | GlobeNewswire | +0.00% | -11.12% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CBRS section they belong to.
Where else CBRS is measured.
CBRS earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Cerebras Systems Inc.'s median reaction calculated?
Every labeled CBRS 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 163 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. 46% of CBRS'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 2026-09-21.
Does CBRS'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.