AMKR

-8.2%🔴 Potential overreaction

Amkor Technology Inc · Technology

$43.69Vol 3.07M · 0.9× normalMkt cap −$0.97BMarket closed — 2026-10-14 session

What happened

Move

-8.2%

Price

$43.69

Volume

3.07M

0.9× normal

Market cap

$10.85B

−$0.97B today

Why it moved

No clear catalyst identified

No reliable news, earnings or analyst driver was found for this move. A move this size without an obvious driver is most likely flow/positioning-driven rather than a fundamentals story.

Verdict — was the move justified?

🔴 Potential overreaction

A 2.9σ move well beyond the sector with no identified fundamental or news driver — the reaction appears larger than currently visible evidence justifies. Likely flow/positioning-driven.

How unusual is this move

σ score

2.9σ

vs own 20d volatility

Percentile

97th

of 1270 daily moves

Avg daily move

±2.5%

own 5y average

vs sector

-5.0%

beyond sector median

Today’s move is among the largest 3% of AMKR’s daily moves over the last 5 years — while the sector moved -3.2% and the market -0.6%.

What happened after similar moves

57 similar down moves in AMKR’s 5-year history:

After 5 days

+1.1%

58% higher

After 20 days

+3.5%

60% higher

Median of same-direction moves within ±35% magnitude band. Past patterns don’t predict outcomes — context, not signal.

Fundamental context

V 42G 11P 49H 73Q 60

Insider activity (90d): net selling $275.0K

Valuation context

P/E (TTM)

20.0

5y median 16.1

P/E percentile

67%

vs own 5y history

FCF yield

-0.0%

Valuation sits near the middle of its own historical range (67th percentile).

Full fundamental analysis on PreMarketPrice

Pillar scores, financial statements, valuation history, news & more for AMKR

→