On September 29, ASML Holding NV rose 3.12% in regular trading, trading at $1,829.58/share, with turnover of $679 million. The gain came amid a broad rally in semiconductor equipment stocks, driven by multiple positive catalysts across the chip sector.

On the news front, NVIDIA announced a $150 billion increase to its stock buyback authorization, while AMD unveiled an $8.2 billion acquisition of World Labs to advance AI world models, significantly boosting market confidence in AI compute investment. UBS analysts noted that ASML's lithography tool capacity forecasts still have room for upward revision, with the company planning to raise DUV and EUV output by 30% in 2027 and a further 30% in 2028. Citi also named ASML as one of the top beneficiaries of AI chip and memory chip capacity expansion trends. Additionally, ASML reported ongoing transactions under its current share buyback program.

Within the Semiconductor Equipment sector, peers also posted strong gains: Applied Materials up 4.29%, KLA Corporation up 4.15%, Lam Research up 3.33%, AXT Inc up 9.30%, and Teradyne up 1.80%.

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