Shares of ALMU are declining approximately 16.00% on Monday, May 18, 2026, falling from a Friday, May 15 close of $24.86 to approximately $20.88 — a third consecutive session of post-earnings selling that has now erased approximately 33.7% of ALMU's value from the May 13 pre-earnings close of $31.49, as the market continues to reprice the stock following the May 13 Q3 FY2026 report that delivered a revenue miss and a significant full-year guidance cut attributing contract delays directly to U.S. government shutdown disruptions.

Advanced Micro Devices, Inc. ( AMD ) designs and manufactures high-performance semiconductors, including central processing units (CPUs), graphics processing units (GPUs), and data-center accelerators. Its core business model centers on delivering energy-efficient chips for computing, gaming, data centers, and embedded systems. The company competes in the semiconductor industry against peers such as NVIDIA and Intel, with a growing emphasis on artificial intelligence and high-performance computing. Strong fundamentals in the Data Center segment, which now accounts for the majority of revenue growth, help explain recent stock behavior as investors reward exposure to accelerating AI demand.

Texas Instruments (TXN) stock rose approximately 40% over the past 30 days, driven primarily by strong first-quarter earnings results and upbeat guidance. Over the past quarter, the stock advanced significantly amid broader semiconductor sector momentum and improving demand signals.

Shares of NVTS are down approximately 11% in early trading on May 15, 2026, pulling back from the prior session's close of $22.28 to approximately $19.83. The primary catalyst is continued investor reaction to the company's $125 million at-the-market equity offering, announced May 11, which carries immediate and significant dilution implications for existing shareholders.

Shares of MRVL are down approximately 6% in premarket trading on May 15, 2026, declining from the prior session's close of $182.58 to approximately $171.62. The primary catalyst is a broad-based semiconductor sector selloff, with the iShares Semiconductor ETF on track to break a six-week winning streak.

Shares of INTC are down approximately 5% in premarket trading on May 15, 2026, from the prior session's close of $115.93, pointing to an opening near $110. The primary driver is broad profit-taking across the semiconductor sector, with the iShares Semiconductor ETF on track to break a six-week winning streak.

Shares of POET fell approximately 17% in premarket trading on May 15, 2026, extending a volatile session following an overnight earnings release. The primary catalyst is a Q1 2026 EPS miss: POET reported a GAAP loss of -$0.08 per share, falling short of the consensus estimate of -$0.05 by $0.03, or roughly 60% worse than expected.

GFS stock surged +55% over the past 30 days, driven by strong Q1 earnings beat and AI-focused growth initiatives. Over the past quarter, shares gained +55%, reflecting recovery from early-year lows amid semiconductor demand recovery.

STM stock surged +56% over the past 30 days, driven by a strong Q1 earnings beat on revenue, upbeat Q2 guidance, and multiple analyst upgrades highlighting AI and automotive recovery. Over the past quarter, the stock rose +92%, fueled by semiconductor sector rally, AI data center demand, and strategic deals like the AWS partnership.

NXPI stock surged +41% over the past 30 days, driven primarily by a strong Q1 earnings beat and positive guidance, triggering a 26% single-day gain. Over the past quarter, the stock rose +50%, reflecting recovery from earlier lows amid improving end-market demand in automotive and industrial sectors.

Shares of BTGO are declining approximately 15% on Thursday, May 14, 2026, falling from a Wednesday, May 13 close of $11.91 to approximately $10.24 — an earnings-driven selloff following Q1 2026 results released after Wednesday's close that delivered a massive EPS miss of -$0.62 against a -$0.01 consensus estimate, a significant revenue miss of $3.77 billion against the $5.65 billion estimate, and a net loss that more than doubled year-over-year to -$60.7 million

ALMU shares are down approximately 16% in premarket trading on May 14, 2026, following the release of fiscal Q3 2026 financial results after the close on May 13. Primary catalyst: Aeluma narrowed and effectively cut its full-year FY2026 revenue guidance to $4.2M–$4.6M, trimming the upper end of the prior $4.0M–$6.0M range by $1.4 million, citing government shutdown-related contract delays.

Analysts expect Q1 2026 revenue of approximately $411 million, up about 15% year-over-year from $358 million in Q1 2025. Consensus EPS estimate stands at $0.56 per share, a 24% increase from $0.45 in the year-ago quarter.

Shares of NVTS are declining approximately 14.00% on Tuesday, May 12, 2026, falling from a Monday, May 11 close of $22.65 to approximately $19.48 — a post-tariff-rally profit-taking reversal that is unwinding a significant portion of Monday's 21–24% surge driven by the U.S.-China 90-day tariff pause, as the fundamental Q1 2026 earnings concerns that the tariff enthusiasm temporarily overrode reassert themselves in today's trading session.

MRVL stock surged +30% over the last 30 days, driven by robust AI data center demand and strategic partnerships with NVIDIA and Google. Over the past quarter, shares rocketed +110%, propelled by record fiscal 2026 revenues and accelerating growth guidance.

ADI stock surged +19% over the past 30 days, driven by strong sector momentum in analog semiconductors and anticipation ahead of Q2 earnings. Over the past quarter, shares climbed +29%, fueled by robust Q1 fiscal 2026 results with 30% revenue growth and record data center orders.

QCOM stock surged +59% over the last 30 days, driven by strong Q2 earnings beat, a $20 billion buyback announcement, and AI data center wins. Over the past quarter, shares rose +47%, rebounding from earlier lows amid automotive revenue records and diversification beyond handsets.

ARM stock surged +43% over the past 30 days, driven by the launch of its AGI CPU for AI data centers and strong Q4 earnings beat. Over the past quarter, shares climbed +92%, fueled by AI infrastructure demand, partnerships with Meta and others, and adoption of Armv9 architecture.

INTC stock surged +86% over the past 30 days, driven primarily by a blockbuster Q1 2026 earnings beat and upbeat guidance, with shares jumping 24% in a single day post-earnings. Over the past quarter, the stock rose +140%, reflecting a broader recovery in the semiconductor sector fueled by AI demand and Intel's turnaround efforts.

MU stock surged +59% over the past 30 days, driven by explosive AI demand for high-bandwidth memory (HBM) and sold-out 2026 supply. Over the past quarter, shares climbed +71%, fueled by record earnings beats and upward analyst revisions.