ASM stock heads into the open after a 2.9 percent jump

At the close on September 18, 2026, ASM stock finished at EUR 813.80 on Euronext Amsterdam, up 2.91 percent, as European chipmakers benefited from renewed interest in artificial intelligence plays. Trading volume and sector moves set the tone for today.

ASM stock closed at EUR 813.80 on Euronext Amsterdam on September 18, 2026, marking a 2.91 percent gain versus the previous session. Compared with broader European chip peers, ASM participated in a sector-wide upswing driven by renewed demand for artificial intelligence-related semiconductor equipment.

September 18, 2026 in numbers

ASM International N.V. (ISIN NL0000334118) most recently closed at EUR 813.80 on its primary listing in Amsterdam on September 18, 2026, after rising 2.91 percent from the prior close, according to market data cited in a Teleborsa-based wrap. As Ad-hoc-news reported on September 21, 2026, that move on September 18, 2026 corresponded to a daily increase of 2.91 percent and was interpreted as renewed buying interest at current levels. The same report highlighted a technical support reference around EUR 720.00, placing the latest close noticeably above that level and underscoring the recent upward bias.

In the broader European chip space, ASM traded in tandem with other semiconductor equipment makers. As Il Sole 24 Ore Radiocor noted on September 21, 2026, European chipmakers such as ASM International and ASML registered gains, with ASM shares up around 1.50 percent intraday at EUR 826.00 in Amsterdam during a recent session, illustrating continued investor appetite for the segment. That sector performance provided a context in which ASM's close at EUR 813.80 on September 18, 2026 stood as part of a broader move in technology names linked to artificial intelligence investment themes.

AI and chip sentiment driving today

Today, ASM enters the new session against a backdrop of strong global enthusiasm for semiconductor and artificial intelligence-related stocks. On September 21, 2026, European semiconductor shares opened higher as investors allocated fresh capital to AI beneficiaries, according to GuruFocus, which pointed to notable gains in leading chip-equipment names. In parallel, Wall Street saw a sharp advance in major indices on September 21, 2026, with the S&P 500 and Nasdaq Composite both posting robust percentage increases as AI optimism reignited and Treasury yields eased, according to Livemint. That combination of firmer global equity benchmarks and ongoing AI-related demand shapes the environment in which ASM stock is due to trade today on Euronext Amsterdam.