TOP TIERMARKET NEWSWIRE
Movers explained · 2026-07-29

Archived explainer. For the current picture see today's AMKR page.

Why Is AMKOR TECHNOLOGY INC (AMKR) Stock Down Today?

By the Top Tier Newswire AI Desk · July 29, 2026 at 5:29 AM ET · reviewed against 18 wire stories

AMKOR TECHNOLOGY INC (AMKR) is down -24.74% in the latest session. Our newswire has captured 18 stories on AMKR across 9 sources in the last 36 hours, with AI sentiment reading mixed (avg 47/100).

Why AMKR stock is down today

Amkor Technology Inc (AMKR) fell 24.74% to $45.69 in the session, marking one of the largest declines in recent weeks. The sharp drop followed the company's Q2 earnings report, which included a record revenue of $1.9 billion but was accompanied by weaker-than-expected guidance for the next quarter. Analysts and investors focused on the cautious outlook, which overshadowed the strong performance in AI-driven growth and led to immediate selling pressure.

What Happened

Amkor reported its highest quarterly revenue ever, up 26% year-over-year to $1.9 billion with earnings per share of $0.70, exceeding expectations. However, the company’s Q3 revenue guidance of $1.95 billion to $2.05 billion failed to meet investor expectations, prompting a sharp selloff. The stock closed down for a fourth consecutive session, with Barron's reporting a 23% drop. B. Riley highlighted near-term challenges, including program delays and AI sentiment pressure, as potential sources of continued volatility. Morgan Stanley recently raised its price target to $70 but maintained an equal-weight rating, suggesting a neutral stance despite the recent decline.

What The Data Shows

The stock has fallen 26.7% over the last eight sessions, from $62.94 to $46.14. Insiders have sold $6.2 million worth of shares in the past 90 days, with no insider purchases recorded. Recent transactions include sales by EVP Mark Rogers and CFO Megan Faust. The stock is now trading below its 200-day moving average for the first time in nearly a year. With a beta of 2.21, AMKR has been more volatile than the broader market. The stock’s 52-week range is $20.86 to $96.68, and its P/E ratio of 34.9 suggests it is trading at a premium relative to earnings.

What To Watch

The company’s next earnings report will be a key event to monitor. Until then, investors should watch for shifts in coverage and analyst sentiment, particularly as AI sector dynamics and supply chain developments could influence Amkor’s performance.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Not financial advice.

AMKR by the numbers

Last: $45.69Session: -24.74%7 sessions: -31.70%Coverage: 18 stories / 9 sourcesAI sentiment: 47/100 (mixed)Mkt cap: $16.1BP/E: 34.952w: $20.86 to $96.68
AMKR · Jul 29 session (5-min) · -4.82% vs prior close · updated 6:13 PM ET
$41.77$45.02$48.27prev close $45.69$43.497:00 AM9:47 AM12:35 PM3:22 PM6:10 PM7:00 AM · $46.007:05 AM · $46.087:10 AM · $46.307:15 AM · $46.407:20 AM · $46.607:25 AM · $46.407:30 AM · $46.347:35 AM · $46.127:40 AM · $46.017:45 AM · $45.927:50 AM · $45.907:55 AM · $45.778:00 AM · $45.998:05 AM · $46.008:10 AM · $45.908:15 AM · $45.658:20 AM · $45.418:25 AM · $45.508:30 AM · $45.328:35 AM · $45.378:40 AM · $45.578:45 AM · $45.598:50 AM · $45.708:55 AM · $45.509:00 AM · $45.359:05 AM · $45.479:10 AM · $45.459:15 AM · $45.379:20 AM · $45.449:25 AM · $46.009:30 AM · $47.929:35 AM · $47.549:40 AM · $47.809:45 AM · $47.009:50 AM · $46.329:55 AM · $45.7510:00 AM · $46.2610:05 AM · $46.1310:10 AM · $45.8110:15 AM · $45.9610:20 AM · $45.6510:25 AM · $45.3410:30 AM · $45.3710:35 AM · $44.8510:40 AM · $44.7910:45 AM · $45.1910:50 AM · $45.4210:55 AM · $45.8411:00 AM · $45.7911:05 AM · $45.7111:10 AM · $45.5111:15 AM · $45.5011:20 AM · $45.7811:25 AM · $45.5111:30 AM · $45.3811:35 AM · $45.1611:40 AM · $45.2411:45 AM · $45.1311:50 AM · $44.6511:55 AM · $44.5412:00 PM · $44.1912:05 PM · $44.2812:10 PM · $44.0612:15 PM · $44.1612:20 PM · $44.1612:25 PM · $44.4212:30 PM · $44.3712:35 PM · $44.4012:40 PM · $44.2112:45 PM · $44.5712:50 PM · $44.7312:55 PM · $44.911:00 PM · $45.231:05 PM · $45.051:10 PM · $45.151:15 PM · $45.091:20 PM · $45.191:25 PM · $44.871:30 PM · $45.091:35 PM · $45.291:40 PM · $45.301:45 PM · $45.271:50 PM · $45.301:55 PM · $45.162:00 PM · $45.612:05 PM · $45.932:10 PM · $45.612:15 PM · $45.172:20 PM · $45.122:25 PM · $44.952:30 PM · $44.942:35 PM · $45.332:40 PM · $45.682:45 PM · $45.892:50 PM · $46.012:55 PM · $46.083:00 PM · $45.953:05 PM · $45.453:10 PM · $45.483:15 PM · $45.063:20 PM · $44.663:25 PM · $44.853:30 PM · $44.343:35 PM · $44.023:40 PM · $43.953:45 PM · $43.653:50 PM · $43.343:55 PM · $42.724:00 PM · $42.724:05 PM · $42.994:10 PM · $42.834:15 PM · $42.374:20 PM · $42.504:25 PM · $42.404:30 PM · $42.124:35 PM · $42.364:40 PM · $42.604:45 PM · $42.744:50 PM · $42.994:55 PM · $42.845:00 PM · $43.005:05 PM · $43.015:10 PM · $43.015:15 PM · $43.045:20 PM · $43.015:25 PM · $43.015:30 PM · $43.145:35 PM · $42.845:40 PM · $42.695:45 PM · $42.665:50 PM · $42.665:55 PM · $43.216:00 PM · $43.206:05 PM · $43.106:10 PM · $43.49
AI sentiment, last 36h · averaged over 18 stories · 47/100 neutral
AI sentiment 47/100 (neutral)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 8 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishSeeking Alpha · sentiment 42 · Amkor tumbles after Q2 results, but analysts highlight strong margins, record revenueSeeking Alpha · 42Amkor tumbles after Q2 results, but analysts highlight strong margins, record revenueInvesting.com Markets · sentiment 34 · Why is Amkor Technology stock crashing today?Investing.com Markets · 34Why is Amkor Technology stock crashing today?Barron's · sentiment 32 · Amkor Tech Scores an Earnings Beat and the Stock Plummets 23%Barron's · 32Amkor Tech Scores an Earnings Beat and the Stock Plummets 23%Barchart · sentiment 48 · Amkor Just Crushed Earnings. Here’s Why Wall Street Still Punished AMKR Stock.Barchart · 48Amkor Just Crushed Earnings. Here’s Why Wall Street Still Punished AMKR Stock.CNBC · sentiment 50 · Stocks making the biggest moves midday: Boeing, Amkor, Corning, Sandisk, Iqvia & moreCNBC · 50Stocks making the biggest moves midday: Boeing, Amkor, Corning, Sandisk, Iqvia & moreStocktwits News · sentiment 38 · AMKR Stock Falls Below 200-DMA For First Time In Nearly A Year – B. Riley Says AI Sentiment Pressure Remains A RiskStocktwits News · 38AMKR Stock Falls Below 200-DMA For First Time In Nearly A Year – B. Riley Says AI Sentime…Barchart · sentiment 73 · Amkor Has a Fresh Catalyst With a New Nvidia Deal. How to Play AMKR Stock Here.Barchart · 73Amkor Has a Fresh Catalyst With a New Nvidia Deal. How to Play AMKR Stock Here.Barron's · sentiment 48 · U.S. Markets Finished Mixed Tuesday As IQVIA Holdings Led, Amkor Technology LaggedBarron's · 48U.S. Markets Finished Mixed Tuesday As IQVIA Holdings Led, Amkor Technology Lagged
1d agoBarron'sNEUTRAL 48General

U.S. Markets Finished Mixed Tuesday As IQVIA Holdings Led, Amkor Technology Lagged

1d agoBarchartBULLISH 73M&A

Amkor Has a Fresh Catalyst With a New Nvidia Deal. How to Play AMKR Stock Here.

Amkor just landed a $1.5 billion Nvidia partnership. So, should you buy, sell, or hold the stock now?

1d agoStocktwits NewsBEARISH 38Analyst

AMKR Stock Falls Below 200-DMA For First Time In Nearly A Year – B. Riley Says AI Sentiment Pressure Remains A Risk

B. Riley stated near-term challenges, including weakness in communications, program delays, and pressure from AI sentiment, could create volatility for the stock.

1d agoCNBCNEUTRAL 50General

Stocks making the biggest moves midday: Boeing, Amkor, Corning, Sandisk, Iqvia & more

Comprehensive up-to-date news coverage, aggregated from sources all over the world by Google News.

1d agoBarchartNEUTRAL 48Earnings

Amkor Just Crushed Earnings. Here’s Why Wall Street Still Punished AMKR Stock.

Amkor posted its strongest quarter ever, but cautious guidance stole the spotlight from its AI-driven growth.

1d agoBarron'sBEARISH 32Earnings

Amkor Tech Scores an Earnings Beat and the Stock Plummets 23%

The semiconductor packager is set to close lower for a fourth straight session after its guidance fails to impress Wall Street.

1d agoInvesting.com MarketsBEARISH 34General

Why is Amkor Technology stock crashing today?

Why is Amkor Technology stock crashing today?

1d agoSeeking AlphaBEARISH 42Earnings

Amkor tumbles after Q2 results, but analysts highlight strong margins, record revenue

Amkor (AMKR) stock drops despite record Q2 results as Q3 revenue guidance misses.

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More on AMKR: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier AMKR move explainers: 2026-07-29 · 2026-07-28 · 2026-07-27 · 2026-07-24