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Ethereum’s Sepolia testnet to trial 200 million block gas target with Glamsterdam upgrade on Oct. 6

Ethereum’s Sepolia testnet is set to gradually raise its block gas limit from 60M toward a 200 million target as part of the network’s Layer 1 scaling push. Prysm 7.2.0 and Teku 26.9.1 support the Glamsterdam upgrade, but validators must manually change settings for the new preference to take effect, so the realized limit will rise block by block rather than jump instantly. Ethereum’s block gas limit previously increased from 30M starting in February 2025 to 45M, and later moved to a 60M default after Fusaka client releases.

Why Is AXTI Stock Price Down 12.39% Today, Aug 28? Optics Profit-Taking

AXT (AXTI) fell 12.39% to close at $58.63 on August 28, 2026, as profit-taking spread through optics and indium-phosphide names. Read the daily analysis of AXT Inc's optics-cycle outlook, momentum risk and key technical levels.

Why Is IONQ Stock Price Down 7.68% Today, Aug 28? Quantum Selloff and Valuation Concerns Pressure Shares

IONQ fell 7.68% to $39.20 in the August 28, 2026 regular session as quantum-computing pure plays faced renewed valuation-sensitive selling. Read the daily analysis of IonQ's sector de-risking outlook, momentum risk and key technical levels.

Why Is IREN Stock Price Down 12.53% Today, Aug 28? Revenue Miss and AI Transition Concerns Pressure Shares

IREN fell 12.53% to USD 35.45 on August 28, 2026, after investors weighed a quarterly revenue miss and a large reported loss tied to its mining exit. Read the daily analysis of IREN Limited's earnings-reset outlook, momentum risk and key technical levels.

Why Is Arm Holdings (ARM) Stock Price Down 6.33% Today, Aug 28? Chip Selloff plus Higher Yields Pressure Shares

Arm Holdings (ARM) fell 6.33% to $239.05 in the August 28, 2026 regular session as technology and chip risk appetite weakened amid an elevated-yield backdrop. Read the daily analysis of Arm Holdings plc's sector-risk outlook, momentum risk and key technical levels.

Why Is NVIDIA (NVDA) Stock Price Down 4.57% Today, Aug 28? AI Financing Concerns and Chip Selloff Pressure Shares

NVIDIA (NVDA) fell 4.57% to $217.55 on Aug 28, 2026, as strong results met an elevated bar and renewed AI financing concerns pressured semiconductor risk appetite. Read the daily analysis of NVIDIA Corp's post-earnings outlook, momentum risk and key technical levels.

Why Is Lumentum (LITE) Stock Price Down 6.39% Today, Aug 28? AI Optics Selloff Pressures Shares

Lumentum (LITE) fell 6.39% to close at $895.00 on August 28, 2026, as investors de-risked AI-optics exposure amid a broader peer selloff. Read the daily analysis of Lumentum's optics-sector outlook, momentum risk and key technical levels.

Why Is Amazon (AMZN) Stock Price Up 3.97% Today, Aug 28? AI Sales Outlook and Cloud Demand Lift Shares

Amazon (AMZN) rose 3.97% to $266.43 on August 28, 2026, as an AI-led sales thesis and fresh clean-power commitments focused attention on its growth infrastructure. Read the daily analysis of Amazon's AI-demand outlook, momentum risk and key technical levels.

Why Is Marvell (MRVL) Stock Price Down 10.28% Today, Aug 28? Google Chip Revenue Timing Pressures Shares

Marvell (MRVL) fell 10.28% to $216.62 on August 28, 2026, as investors weighed strong quarterly results against questions about when Google-linked custom-chip revenue will become meaningful. Read the daily analysis of Marvell Technology's Google-revenue-timing outlook, momentum risk and key technical levels.

Arista Networks (ANET) Q2 2026 Earnings Overview: $3.04B Revenue Beat Drives a 3.57% Price Rally

Arista Networks reported Q2 2026 revenue of $3.04 billion, up 37.7% year over year, and issuer-defined non-GAAP EPS of $1.02, above LSEG expectations. This earnings report reviews revenue mix, Q3 guidance, the completed post-earnings session, and the technical price references shaping ANET’s August outlook.

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