Amkor Technology, Inc. (AMKR) shares climbed 6.7% to $66.73 at the July 21, 2026 close, a significant gain from the prior close of $62.56. That close is the latest confirmed price for AMKR; a live quote was not available. BestStocks flagged the session as a major change for AMKR. No single company-specific catalyst was confirmed during the move window. Below, we break down what changed for AMKR, why it matters for investors, how the stock reacted, and the catalysts on the calendar.
What happened
AMKR climbed 6.7% to $66.73
Amkor Technology, Inc. (AMKR) moved +6.67% from $62.56 to $66.73 on 2026-07-21. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was near its 5-day average, suggesting the move was not driven by unusual trading activity. Monitor for earnings announcements, analyst commentary on semiconductor assembly/testing demand, or macro commentary on chip manufacturing trends.
This summary describes the catalyst and move as first detected on Jul 21, 2026, 4:45 PM EDT; the stock has continued trading since, so the current price and percentage move (shown above) may be larger or smaller than the figures here.
ActivityWeak confidence
Rel. volume
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Calculating
Vs peers
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No comparable peers
Market cap
—
Earnings in
5d
2026-07-27
Price chart
Jun 22 – Jul 22
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details
What it means for Amkor Technology, Inc. investors
For Amkor Technology, Inc. investors, the recent signals are mixed, leaving the near-term picture neutral / mixed. On the constructive side: Strong 6.7% price move; Amkor Technology, Inc. (AMKR) moved +6.27% from $66.06 to $70.20 on 2026-07-14. Weighing against that: Amkor Technology, Inc. (AMKR) moved -6.83% from $67.64 to $63.02 on 2026-07-16; Amkor Technology fell 8.01% to $64.58, though no specific intraday catalyst was found in news or filings. BestStocks rates the overall signal quality weak (0/100). With earnings roughly 5 days out, the next report is the most likely near-term test of the move.
AMKR price reaction
AMKR last traded at $66.73, up $4.17 (+6.67%) from the previous close of $62.56. Over the past month the stock has ranged between $62.56 and $93.55, and it currently sits about 13% of the way up that band.
The bull and bear case for AMKR stock
Weighing the constructive signals against the risks, here is how the bull and bear case for Amkor Technology, Inc. (AMKR) lines up on the latest data.
▲ The bullish case
+Strong 6.7% price move.
+Amkor Technology, Inc. (AMKR) moved +6.27% from $66.06 to $70.20 on 2026-07-14.
▼ The bearish case
−Amkor Technology, Inc. (AMKR) moved -6.83% from $67.64 to $63.02 on 2026-07-16.
−Amkor Technology fell 8.01% to $64.58, though no specific intraday catalyst was found in news or filings.
Bull vs bear balanceNeutral / Mixed
BearishNeutralBullish
Weighing both sides, BestStocks' composite read of recent signals is roughly balanced, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.
Amkor Technology, Inc. (AMKR) moved -0.60% from $62.94 to $62.56 on 2026-07-20. We checked news, earnings, analyst updates, filings, and corporate actions — no company-specific catalyst was found. The move coincided with AMKR reaching a new 30-day low, while volume remained near its 5-day average.
Activity2026-07-17-0.1%
Amkor Technology, Inc. (AMKR) moved -0.13% from $63.02 to $62.94 on 2026-07-17. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The stock reached a new 30-day low on volume near its 5-day average.
Risk2026-07-16-6.8%
Amkor Technology, Inc. (AMKR) moved -6.83% from $67.64 to $63.02 on 2026-07-16. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The decline coincided with AMKR reaching a new 30-day low; volume was near its 5-day average.
Amkor Technology fell 8.01% to $64.58, though no specific intraday catalyst was found in news or filings. The decline occurred on below-average volume (0.50x typical for this time of day at 182 minutes into the session), suggesting institutional or broad-based selling rather than company-specific news. Recent analyst commentary (Zacks, July 14–15) highlighted AMKR's valuation discount and AI-driven growth catalysts, but the market's reaction today diverged from that constructive framing.
Activity2026-07-14+6.3%
Amkor Technology, Inc. (AMKR) moved +6.27% from $66.06 to $70.20 on 2026-07-14. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was near its 5-day average at 1.2x, indicating no unusual trading activity.
Risk2026-07-13-6.3%
Amkor Technology, Inc. (AMKR) moved -6.26% from $70.47 to $66.06 on 2026-07-13. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was near its 5-day average, suggesting the move was not driven by unusual trading activity.
Amkor Technology gained 9.48% to $73.25 in intraday trading, extending momentum after a +2.42% close on July 8 (Zacks). The sharp intraday move outpaces recent daily gains, though no specific catalyst event has been identified in available sources at this early stage of the session.
Amkor Technology fell 7.55% to $64.39 intraday with no identified catalyst in today's news or filings. The decline occurred 39 minutes into the session; volume data remains unreliable at this early timestamp. The company is scheduled to report Q2 2026 earnings on July 27, 2026.
Upcoming catalysts & outlook
Next earnings
2026-07-27
in 5 days
Thesis shift
Neutral / Mixed
bearish signal
Risk level
High
from change events
Frequently asked questions about AMKR
Why did Amkor Technology, Inc. (AMKR) stock move?
AMKR climbed 6.7% to $66.73. No single company-specific catalyst was confirmed during the move window, and it looks technical.
How much did AMKR stock rise?
AMKR gained 6.67% ($4.17) versus the prior close of $62.56, last trading at $66.73.
When is Amkor Technology, Inc.'s next earnings date?
AMKR's next earnings report is scheduled for 2026-07-27 — about 5 days away.
How BestStocks tracks AMKR
This page is generated automatically by BestStocks' change-detection system after its price and volume cleared AMKR-specific materiality thresholds, triggering an evidence check. It draws on 13 tracked change events for AMKR, cross-checked against the data sources listed below. A live intraday quote was not available, so price and volume figures are the confirmed end-of-day close from July 21, 2026 — not the current price — and the percentage move is that session's. They refresh once live quotes resume. For companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.
