AEHR is trading down -5.11% to about $100.55 during regular market hours, extending losses from the prior session's $105.97 close. The move reflects continued profit-taking and consolidation after a steep rally that lifted the stock roughly 320% in 2026.

AXT shares climbed roughly 50% over the last 30 days, from a closing price of $48.83 on July 20 to $73.43 on August 19, 2026. The rally was driven primarily by record second-quarter results reported on July 30, including revenue up 164% year over year and a return to profitability.

AXT, Inc. ( AXTI ) closed near $73, making a return to the $100 level a gain of roughly 35% from current prices. The strongest bull case rests on record demand for indium phosphide (InP) substrates used in AI data center optical transceivers.

AEHR fell -7.08% intraday to roughly $114.53, extending the prior session's -15.4% slide. The drop occurred during regular trading hours amid a broad AI/semiconductor sell-off.

FORM traded down -12.15% to $121.38 as of 1:48 p.m. ET on Tuesday, versus a prior close of $138.16; the decline extended a gap-down open during regular trading. The primary catalyst was disclosure that CEO Mike Slessor sold 16,002 shares (~$2.10 million) on Aug. 14 under a pre-arranged Rule 10b5-1 plan, cutting his stake by about 3.2%.

AEHR is down -15.17% in regular trading Tuesday, falling to $123.52 from Monday's close of $145.61 as of early afternoon. The drop is a sharp profit-taking reversal after a vertical run: shares had more than doubled from late-July lows and hit a record $147.40 on Aug 14.

AXTI traded down -14.98% at $81.59 during Tuesday's regular session as of 1:43 p.m. ET, versus Monday's $95.97 close. The decline began with a -6.7% premarket dip and accelerated after the open.

TER shares advanced roughly 37% over the 30 days through mid-August 2026, rebounding from a sharp July pullback. The recovery followed Teradyne's Q2 2026 results: revenue of $1.33 billion, up about 104% year over year, and non-GAAP EPS of $2.47, both above consensus.

Applied Materials posted record revenue of $9.12 billion for its fiscal third quarter ended July 26, 2026, up 25% year over year and above the consensus estimate of about $8.99 billion. Non-GAAP EPS (earnings per share) reached a record $3.50, beating the roughly $3.40 consensus; GAAP EPS was $3.17.

Lam Research Corporation ( LRCX ) has delivered significantly stronger year-to-date returns compared to Taiwan Semiconductor Manufacturing Company Limited ( TSM ), driven by robust equipment demand in the semiconductor sector. TSM benefits from direct exposure to advanced chip manufacturing and AI-related foundry services, with recent July revenue growth exceeding 44% year-over-year.

LRCX delivered approximately 82% year-to-date returns through early August 2026, significantly outpacing NVDA ’s roughly 20% gain over the same period. LRCX reported record quarterly revenue of $6.72 billion for the period ended June 28, 2026, with 30% year-over-year growth and gross margins reaching 52%.

Entegris shares closed at $152.08 on August 7, 2026, reflecting a modest gain of approximately 4.6% over the trailing 30 days, though the stock rebounded sharply from intra-period lows near $107 in late July. Second-quarter 2026 earnings handily beat Wall Street estimates, with revenue of $883.2 million rising 11.5% year-over-year and non-GAAP EPS of $0.93 topping consensus by roughly 13%.

Price target in focus: $500 — a round-number psychological level that sits roughly 27% above the current price near $393 and aligns with Cantor Fitzgerald's latest published target. Strongest bullish case: Record Q2 2026 revenue of approximately $255 million, upbeat Q3 guidance, and Nova's deepening position in advanced packaging and AI-driven semiconductor fabrication.

Amkor Technology shares dropped approximately 21.6% over the past 30 days, closing at $55.27 on August 7, 2026, compared with $70.47 on July 10, 2026. The steepest single-day decline occurred on July 28, when the stock plunged roughly 25% despite reporting record Q2 2026 revenue and earnings that significantly exceeded analyst expectations.

ASML shares posted a net decline of approximately 0.3% over the trailing 30 days, closing at $1,757.09 on July 24, 2026, despite swinging nearly 15% peak-to-trough within the same window. The company reported standout Q2 2026 results on July 15, with revenue of €9.33 billion and net income of €2.92 billion, both comfortably above consensus estimates.

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.