What changed: Cerebras announced two major growth initiatives on July 9: a partnership expansion with Flex to scale U.S. manufacturing of CS-3 systems with a projected 7x production increase in Milpitas, California, and a European infrastructure expansion targeting 200MW of AI compute capacity by end of 2027 (per PRNewswire and Globe Newswire). The stock rose 6.83% to $194.14, driven by concrete capacity-expansion catalysts signaling accelerating AI infrastructure demand.

Detected Jul 9, 1:00 PM ET

Source: PR Newswire ↗

What changed: Astera Labs rose 7.51% to $422.68, likely driven by momentum following last month's facility expansion announcement in Taiwan and recent bullish analyst updates noted by Zacks on July 8. The stock was also flagged as a strong momentum play ahead of the company's Q2 2026 earnings call scheduled for release on July 8 (per Globe Newswire).

Detected Jul 9, 1:00 PM ET

Source: Motley Fool ↗

What changed: Sterling Infrastructure rallied 8.33% to $715.77 on bullish analyst commentary highlighting the company's substantial backlog in AI data center construction projects, according to web sources. The move was reinforced by a softer jobs report that reduced Fed rate-hike concerns and a broader market shift favoring industrials. An SEC 8-K material event filing was also submitted today, though its specific contents are not yet detailed in available sources.

Detected Jul 9, 1:00 PM ET

Source: FMP intraday

What changed: Lam Research surged 9.51% to $364.82, though no earnings release or major news catalyst appears in available sources at this early intraday timestamp. The company announced a scheduled earnings call for July 29, 2026, but that forward-looking notice alone does not explain today's sharp move. Volume data is not yet reliable early in the session.

Detected Jul 9, 1:00 PM ET

Source: PR Newswire ↗

What changed: Ionis Pharmaceuticals announced Thursday that its Phase 3 CARDIO-TTRansform trial of eplontersen (Wainua), developed with partner AstraZeneca for transthyretin-mediated amyloid cardiomyopathy, failed to meet its primary endpoint of reducing cardiovascular deaths and recurring heart problems (Reuters, Barron's). IONS fell 18.39% from $84.46 to $68.93 in intraday trading.

Detected Jul 9, 1:00 PM ET

Source: Benzinga ↗

What changed: Fervo Energy shares surged 12.01% to $26.40 intraday, reversing a prior decline. Volume reached 906,862 shares (1.79x normal for this stage of session), indicating renewed buying interest. No specific intraday catalyst was identified in available sources; the move follows an earlier session drop noted in Yahoo Finance data from July 8.

Detected Jul 9, 1:00 PM ET

Source: Yahoo Finance ↗

What changed: Rivian shares recovered 6.57% to $17.75 after a sharp selloff that began when the company announced a dilutive share offering on July 7, which had sent the stock down nearly 20% the prior day (Benzinga). Volume surged to 18.8M shares, 3.12x the session-average rate at this time of day, indicating active institutional repositioning. The rebound follows the initial panic capitulation, though the stock remains pressured by Ford's growing hybrid profitability advantage over EV-only competitors like Rivian and Lucid.

Detected Jul 9, 1:00 PM ET

Source: CNBC ↗

What changed: HPE rose 6.45% to $47.55, driven by investor appetite for its AI infrastructure positioning. The Motley Fool reported on July 9 that HPE's nearly $6 billion backlog is fueled by enterprise customers shifting AI workloads to on-premises infrastructure, leveraging its Juniper acquisition to offer integrated compute, networking, and storage stacks. Volume of 3.9 million shares ran at 1.00x historical average.

Detected Jul 9, 1:00 PM ET

Source: Motley Fool ↗

What changed: Amkor Technology gained 9.48% to $73.25 in intraday trading, extending momentum after a +2.42% close on July 8 (Zacks). The sharp intraday move outpaces recent daily gains, though no specific catalyst event has been identified in available sources at this early stage of the session.

Detected Jul 9, 1:00 PM ET

Source: Zacks ↗

What changed: AMD rose 5.46% to $545.66, gaining ground as AI chip stocks rebounded amid a sector sell-off. According to Motley Fool, AMD is positioned in inference and agentic AI trends, while Barron's noted the stock has climbed 259% over 12 months despite headwinds from new Intel competition. Volume data remains unreliable early in the session.

Detected Jul 9, 1:00 PM ET

Source: Benzinga ↗

What changed: FormFactor surged +8.28% to $120.83 intraday (from $111.59), though no immediate catalyst was identified in current news or evidence. The company is scheduled to announce Q2 2026 financial results on July 29th at 1:25 p.m. PT.

Detected Jul 9, 1:00 PM ET

Source: GlobeNewswire ↗

What changed: Western Digital rallied 8.27% to $595.81, driven by surging AI-related storage demand and data center needs that fueled a sector-wide spike in memory stocks, according to web searches. The gain was further supported by a broader market rotation where investors rotated capital from GPU leaders into memory plays like WDC and Seagate amid renewed semiconductor demand optimism.

Detected Jul 9, 1:00 PM ET

Source: investors.com ↗