Amkor Technology, Inc. (AMKR) shares tumbled 10.7% to $39.05 as of October 23, 2026, a sharp decline from the prior close of $43.73. BestStocks flagged the session as a major change for AMKR. The move is tied to price move down. 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 fell 10.7% to $39.05
AMKR tumbled 10.7% in its latest session, moving from $43.73 to $39.05.
Material / EarningsMedium confidence
Rel. volume
1.3×
Normal
Vs peers
—
No comparable peers
Market cap
$9.7B
NASDAQ Global Select
Analyst target
$79
+101.7% vs price
Price chart
Sep 22 – Oct 23
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 add up to a strong bearish shift. On the constructive side: Positive price momentum. Weighing against that: Material negative event; Sharp 10.7% decline — elevated risk. Wall Street's consensus price target sits at $78.75, implying +101.7% upside from $39.05. BestStocks rates the overall signal quality medium (61/100). With earnings roughly 3 days out, the next report is the most likely near-term test of the move.
AMKR price reaction
AMKR last traded at $39.05, down $4.68 (-10.70%) from the previous close of $43.73. The session traded on 1.3× average volume (normal), so participation was unremarkable. Over the past month the stock has ranged between $39.05 and $56.02, and it currently sits about 0% of the way up that band.
Bullish and bearish analyst opinions on Amkor Technology, Inc. (AMKR)
The consensus analyst price target on Amkor Technology, Inc. (AMKR) is $78.75, 101.7% above the recent $39.05. Over the past 90 days analysts logged 0 upgrades, 4 maintains, and 0 downgrades. Here is how the bullish and bearish cases on AMKR line up.
▲ The bullish case
+Wall Street's consensus price target of $78.75 implies +101.7% upside from $39.05.
+The Street's most bullish target is $90.00 (+130.5%).
+Positive price momentum.
▼ The bearish case
−Material negative event.
−Sharp 10.7% decline — elevated risk.
−AMKR fell 4.81% to $41.93, extending a nine-day losing streak totaling over 21% from earlier October.
−Amkor Technology declined 6.44% to $44.55 as a broad semiconductor sector pullback—driven by a report showing OpenAI's annualized revenue running significantly below market estimates—dampened AI supply-chain sentiment.
−Amkor Technology (AMKR) fell 7.00% to $48.11, driven by a combination of broader semiconductor sector weakness and macroeconomic headwinds.
Bull vs bear balanceStrong Bearish Shift
BearishNeutralBullish
Weighing both sides, BestStocks' composite read of recent signals is strongly bearish, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.
Analyst price targets and ratings are FMP consensus figures as of Oct 23, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.
Analyst expectations
Consensus target: $79+101.7%
= 4 maintains
B. Riley Securities maintained Neutral · 2026-10-20
AMKR fell 4.81% to $41.93, extending a nine-day losing streak totaling over 21% from earlier October. The decline reflects both sector-wide semiconductor weakness—triggered by Federal Reserve Chairman Kevin Warsh's remarks prioritizing price stability over near-term rate cuts, which pressured peers like Intel and Lam Research—and mounting valuation concerns ahead of Q3 earnings (per UBS downgrade cited by investing.com). Volume of 1.95M shares ran 43% below the session average for this time of day.
Amkor Technology declined 6.44% to $44.55 as a broad semiconductor sector pullback—driven by a report showing OpenAI's annualized revenue running significantly below market estimates—dampened AI supply-chain sentiment. Elevated 10-year Treasury yields near 5.2% are also pressuring high-growth technology valuations. Volume traded 1.54M shares (0.63x average for this time of session), indicating below-average participation.
Amkor Technology rose 6.33% to $56.25 as part of a broader semiconductor sector rally on October 2, 2026. Peer equities including MACOM, Semtech, and Texas Instruments posted strong gains, alleviating recent volatility. The rebound was supported by sustained demand for Amkor's advanced packaging services—particularly its NVIDIA partnerships and Arizona manufacturing footprint—and analyst commentary highlighting cash-flow upside from operational leverage and margin expansion in 2026.
Material / Earnings2026-09-22+4.6%
AMKR moved -100.00% from its $51.60 open to a $54.59 close on 2026-09-22.
Amkor Technology (AMKR) fell 7.00% to $48.11, driven by a combination of broader semiconductor sector weakness and macroeconomic headwinds. A risk-off tone in tech equities stems from renewed U.S.-Iran tensions pushing oil above $90/bbl and Treasury yields to multi-year highs, raising concerns over potential September rate hikes (web_catalyst). The stock gapped down at the open; volume of 2.53M shares (1.25x normal for this time of session) reflects elevated activity.
Amkor Technology gained 6.53% to $50.89, driven by investor anticipation ahead of management's presentation at the Goldman Sachs Communacopia + Technology Conference on September 9, 2026. The gain reflects renewed interest in the company's advanced semiconductor packaging capabilities and exposure to high-performance computing demand from key customers. Volume of 1.9M shares ran 1.47x normal for this time of session.
Amkor Technology fell 6.22% to $48.52 following sector-wide semiconductor de-risking combined with lingering caution over its Q2 earnings guidance. The company beat Q2 estimates in late July but issued conservative Q3 revenue guidance of $1.95–$2.05 billion, below consensus expectations (Yahoo Finance, MarketWatch). Macroeconomic headwinds—including bond yield shifts and profit-taking in AI/hardware names—have amplified the pullback, though volume remained near historical normal at 0.71x expected for this point in the session.
In-depth AMKR event analyses
Permanent, dated analyses of AMKR's most significant sessions.
AMKR tumbled 10.7% to $39.05. No single company-specific catalyst was confirmed during the move window, and it looks technical.
How much did AMKR stock fall?
AMKR lost 10.70% ($4.68) versus the prior close of $43.73, last trading at $39.05 on 1.3× average volume.
When is Amkor Technology, Inc.'s next earnings date?
AMKR's next earnings report is estimated for 2026-10-26 — about 3 days away.
What is the analyst price target for AMKR?
The consensus analyst price target for AMKR is $78.75, about 101.7% above the current $39.05. Over the past 90 days, analysts recorded 0 upgrades, 4 maintains, and 0 downgrades.
How BestStocks tracks AMKR
This page is generated automatically by BestStocks' change-detection system after price move down was detected and verified against independent data sources. It draws on 20 tracked change events for AMKR, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of October 23, 2026 and refresh as new information is detected; 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.
