Teradyne shares closed at $365.80 on August 3, 2026, roughly flat compared to 30 days prior, but the stock experienced extreme intra-period swings including a sharp sell-off from its $487.91 June high and a dramatic post-earnings recovery. Second-quarter 2026 revenue more than doubled year-over-year to $1.33 billion, with non-GAAP EPS of $2.47 beating consensus estimates by a wide margin, driven by surging AI-related semiconductor test demand.

Applied Materials (AMAT) shares fell approximately 17.4% over the last 30 days, sliding from $603.04 on July 2 to $497.99 by early August 2026. The decline is part of a broader correction: AMAT plunged roughly 41% from its 52-week high of $739.67 set on June 30 before staging a 15% single-day rebound on July 30.

Lam Research (LRCX) shares have fallen approximately 20.4% over the past 30 days, dropping from $351.41 on July 2 to $279.66 as of August 3, 2026. A broader semiconductor equipment sector selloff, profit-taking after a massive year-to-date rally, and mounting valuation concerns have driven the steep decline.

KLA Corporation (KLAC) shares have fallen approximately 25% over the past 30 days, plunging from $235.55 on July 2 to $176.30 as of early August 2026. The decline is part of a broader semiconductor sector rotation, with the stock down roughly 42% from its June 30 all-time high of $301.71.

Teradyne closed at $367.69 on July 31, 2026, meaning a move to $500 requires roughly 36% upside from current levels. The all-time high of $487.91, set on June 30, 2026, demonstrates that $500 is within the stock's recent trading range and represents a realistic psychological milestone.

Applied Materials (AMAT) closed at $507.67 on July 31, 2026, meaning a climb to $800 would require a gain of approximately 58% from current levels. The stock's 52-week high of $739.67 demonstrates that prices above $700 are achievable, making $800 a credible — though ambitious — extension of the prior rally.

AXTI surged +24.76% during Friday's regular session to $58.56, extending gains after already rocketing +26.97% on Thursday following blowout Q2 earnings released after Wednesday's close. Q2 results crushed estimates: revenue soared +165% YoY to $47.6M (vs. $34.1M consensus), non-GAAP EPS hit $0.19 (vs. $0.07 expected), and gross margins jumped to 45% from 8.2% a year ago.

Record revenue: Lam Research reported $6.72 billion in revenue for the fiscal fourth quarter ended June 2026, up 30% year-over-year and surpassing the consensus estimate of approximately $6.66 billion. Earnings beat: Non-GAAP (adjusted) diluted earnings per share reached a record $1.82, exceeding the Zacks Consensus Estimate of $1.69 by roughly 8%.

Camtek Ltd. (CAMT) shares declined approximately 19% in the last 30 days, falling from $157.32 on June 29 to $126.97 on July 29, 2026. The sell-off extends a broader downtrend that began after the stock hit its 52-week high of $215.99 on May 11, representing a total drawdown of roughly 41% from peak to current levels.

Revenue beat: KLA posted Q4 FY2026 revenue of $3.66 billion, exceeding the consensus estimate of $3.61 billion and landing above the midpoint of its own guidance range. Earnings outperformance: Non-GAAP diluted EPS (earnings per share) came in at $1.05, surpassing analyst expectations of $1.00 per share and hitting the upper end of company guidance.

AMKR plunged -24.08% during Tuesday's regular session, falling from a $60.71 prior close to $46.09, as a post-earnings sell-off accelerated throughout the trading day. The primary catalyst was disappointing Q3 revenue guidance of $1.95B–$2.05B (midpoint $2.0B), which fell well short of the $2.1B consensus, overshadowing a strong Q2 beat of $0.70 EPS on record $1.9B revenue.

LRCX fell -8.22% to $267.64 during regular trading on July 28, extending Monday's -4.46% decline and marking a brutal two-day semiconductor equipment rout. The primary catalyst was a global chip-sector selloff sparked by reports that a Chinese state-backed firm has begun mass-producing immersion DUV lithography machines, directly threatening ASML's near-monopoly and by extension the entire Western equipment ecosystem.

AMAT dropped -6.82% during Tuesday's regular session, extending Monday's -3.61% decline, with the stock sliding from a prior close of $516.89 to roughly $481.63 by mid-morning. The primary catalyst is a report that a Chinese state-backed manufacturer has begun producing domestic immersion DUV lithography machines, threatening the China revenue base of Western chip equipment suppliers including Applied Materials.

KLA Corporation (KLAC) is scheduled to report its fourth-quarter fiscal 2026 results on Tuesday, July 28, after the market closes, covering the period ended June 30, 2026. Company guidance calls for revenue of approximately $3.575 billion (plus or minus $200 million) and non-GAAP diluted earnings per share (EPS) of roughly $9.87 (plus or minus $1.00), both near the midpoint of Wall Street consensus.

ICHR tumbled -13.91% during Monday's regular trading session, falling to $74.51 from Friday's close of $86.55, making it one of the steepest decliners on the Nasdaq. The selloff was driven by a broad semiconductor sector rout, with the group down roughly -3.3%, as names like MaxLinear also fell sharply alongside Ichor.

Applied Materials shares declined approximately 19.7% between June 25 and July 24, 2026, falling from $668.00 to $536.25 as a sector-wide semiconductor sell-off took hold. The stock remains up roughly 28.6% over the trailing quarter despite the recent pullback, reflecting the powerful AI-driven rally that propelled AMAT to an all-time high of $739.67 on June 30.

KLA Corporation (KLAC) shares declined approximately 18.7% over the past 30 days, falling from $258.80 on June 25 to $210.52 on July 24. The stock hit an all-time high of $301.71 on June 30 before a sharp reversal triggered by insider selling, valuation concerns, and broad semiconductor sector rotation.

AEHR tumbled -12.04% during regular trading on Friday, extending a multi-session slide from its post-earnings peak of $98.91 on July 21 to approximately $77.85. The selloff reflects aggressive profit-taking after the stock surged over +40% following its July 14 blowout fiscal Q4 earnings report and FY2027 revenue guidance of $130M–$150M, implying 160%–200% year-over-year growth.

Applied Materials (AMAT) and KLA Corporation (KLAC) both supply critical equipment to the semiconductor industry, with AMAT focusing on deposition and etch processes while KLAC specializes in process control and yield management. In recent market activity, both stocks have delivered strong year-to-date gains amid AI-driven demand for advanced chips, though the sector has experienced periodic volatility.

Both AMAT and LRCX operate in the semiconductor equipment sector and have delivered substantial year-to-date gains amid strong demand for AI-related chip manufacturing tools. Recent market activity has seen heightened volatility across the sector, with AMAT experiencing notable intraday and weekly declines while LRCX has retreated from earlier all-time highs.