NVTS fell -9.11% during regular trading on July 8, dropping to $12.72 after closing at $13.99 the previous session. The primary catalyst is a patent infringement lawsuit filed by rival Wolfspeed after Tuesday's close, alleging NVTS's GaNFast and GeneSiC product lines infringe multiple Wolfspeed patents.

MXL shares are down -6.94% during regular trading on Tuesday, falling to $79.86 from a previous close of $85.82, extending a brutal multi-session selloff. The decline continues fallout from MaxLinear's late-June removal from multiple Russell value benchmarks, including the Russell 3000, 2000, and Small Cap Composite Value indexes, forcing index-tracking funds to rebalance and exit positions.

Vishay Intertechnology shares have declined approximately 25.7% over the last 30 days, falling from $57.20 to $42.49, driven primarily by a large dilutive equity offering. The company priced a $750 million public offering of 15 million common shares at $50 per share on June 29, with underwriters exercising the full overallotment option, bringing total net proceeds to roughly $830 million.

Micron Technology MU shares dropped roughly 6.03% in premarket trading Tuesday, falling to $925.37 from a prior close near $984.75. The decline followed a broad semiconductor selloff triggered by a "sell-the-news" reaction to Samsung's preliminary quarterly results.

AMD shares surged +7.14% to $554.79 during Monday's regular session, building on a premarket gain of roughly +3% after the July 4 holiday break. The primary catalyst was news that Japanese self-driving startup Turing began using AMD's AI GPUs for about 10% of its AI training workloads, with AMD Ventures also investing in the company's $79 million Series A extension.

ON Semiconductor shares have fallen approximately 22% over the past 30 days, driven overwhelmingly by the announcement of a $7 billion all-stock acquisition of Synaptics. The deal, announced on June 25, triggered a single-day decline of roughly 23% on June 26 — the steepest one-day drop in the company's recent history — as investors reacted to dilution concerns and strategic fit questions.

Qualcomm shares have tumbled approximately 18.4% over the last 30 days, falling from $215.94 on June 5 to $176.25 as of early July, marking the stock's worst monthly performance in roughly seven years. The June 24 Investor Day, which unveiled an ambitious $40 billion non-handset revenue target by fiscal 2029, triggered a sharp "sell-the-news" reaction as investors focused on the multi-year timeline before core data-center chips ship.

QuickLogic shares fell approximately 26.5% over the past 30 days, dropping from $21.80 on June 2 to $16.02 by July 2, 2026. A broad semiconductor sector selloff in late June, triggered by South Korean memory contagion and AI infrastructure spending concerns, accelerated the decline.

Kulicke and Soffa Industries, Inc. ( KLIC ) and Power Integrations, Inc.

Both DIOD and KLIC are semiconductor companies that have delivered substantial year-to-date gains, significantly outperforming broader market benchmarks in recent market activity. DIOD focuses on discrete, analog, and logic semiconductors with exposure to automotive and industrial end markets, while KLIC provides semiconductor assembly equipment and advanced packaging solutions.

DIOD shares fell approximately 14.5% over the past 30 days, retreating from a closing price of $112.50 on June 4 to $96.17 as of July 2. The decline follows a sharp rally that pushed the stock to a multi-month high of $123.50 on June 18, suggesting profit-taking and a technical correction.

Rambus shares fell approximately 33% over the past 30 days, erasing a significant portion of earlier 2026 gains. The decline accelerated in late June, with the stock dropping from around $170 to below $115 amid heavy selling volume.

Arm Holdings shares declined approximately 23% over the past 30 days, falling from $411.83 on June 3 to $315.50, as a broad AI-sector rotation triggered heavy profit-taking in high-multiple semiconductor names. The selloff was driven primarily by valuation concerns and sector-wide de-risking rather than company-specific fundamental deterioration, with a Korean-led chip rout accelerating the pullback in late June.

Astera Labs (ALAB) shares climbed approximately 14% over the past 30 days, extending a powerful multi-month rally driven by AI infrastructure demand. Nasdaq-100 index inclusion, effective June 22, triggered mandatory buying from passive funds and ETFs tracking the benchmark, adding sustained upward pressure.

AIP shares plunged -20.26% during Thursday's regular session to $34.52, extending a brutal multi-day selloff from all-time highs above $50 reached on June 30. The collapse was driven by a broader semiconductor sector rout, with the Philadelphia Semiconductor Index sinking 6.3% in its worst single-session decline of 2026.

MRVL stock rose approximately 68% over the past 30 days, reflecting strong upward momentum in recent trading sessions. The surge aligns with broader strength in the semiconductor sector and increasing demand for AI-related infrastructure solutions.

MU shares fell -4.65% in premarket and early regular trading on Wednesday, extending a pullback from the all-time high of $1,255 reached on June 25. The decline was driven by a broad semiconductor sector selloff, with Intel, Arm, Marvell, and ASML also trading lower amid AI infrastructure cost concerns and portfolio rebalancing at the start of the second half of 2026.

INTC shares rose approximately 15% over the past 30 days, climbing from a closing price near $114.68 on May 29, 2026, to $131.72 on June 29, 2026. The stock showed strong momentum within a broader quarterly recovery, with year-to-date gains exceeding 240% as of late June 2026.

VSH shares are trading approximately 11% lower in premarket on June 30, 2026, following a significant equity dilution announcement the prior session. The primary catalyst is Vishay's pricing of a $750 million underwritten public offering of 15 million common shares at $50 per share — a notable discount to the prior closing price of $56.35.

Broadcom (AVGO) shares declined approximately 10.21% over the past 30 days amid broader market volatility. The stock reached a recent high near $495 in early June 2026 before retreating toward the $365 area by late June.