On June 26, Amkor Technology fell 5.31% in regular trading, trading at $80.383/share, with turnover of $56.22 million. The semiconductor equipment sector came under renewed broad-based selling pressure, with major peers declining significantly: Teradyne down 7.12%, Lam Research down 4.62%, Applied Materials down 4.51%, KLA-Tencor down 4.20%, and ASML down 2.38%.

Amkor Technology had previously surged over 24% in June following the announcement of a ten-year strategic partnership with TSMC to jointly expand advanced semiconductor packaging capacity in Arizona. The rapid appreciation pushed the stock price above its upper Bollinger Band, with short-term technical indicators signaling overbought conditions. Under the dual pressure of sustained sector-wide adjustment and excessive prior gains, the stock extended its pullback trajectory. B.Riley recently raised its price target on Amkor from $70 to $90 while maintaining a Neutral rating, with the analyst consensus mean target at $81.11.

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