Major Dutch semiconductor equipment makers saw their stock prices drop sharply during late trading on the Damrak on Monday.
The sell-off followed reports that China is preparing to manufacture its own advanced chip-making machinery on a larger scale.
Chinese developments pressure local tech sector
According to tech news outlet The Information, Chinese manufacturers are working to produce equipment that utilizes deep ultraviolet immersion lithography.
These specialized machines are expected to be supplied to several domestic chip producers across China in the coming period.
While sources indicate the Chinese equipment currently lags behind in reliability, the news still unsettled investors in Europe.
Market analysts note that Veldhoven-based ASML maintains its technological edge for now as the Chinese hardware requires extensive further testing.
Heavy losses on the AEX index
Despite that technology gap, ASML shares closed 8.5 percent lower, reaching their lowest valuation since early June.
Assembly equipment maker Besi suffered an even larger drop, falling nearly 10 percent and marking the largest decline on the flagship index.
Semiconductor supplier ASMI also saw significant pressure, losing over 7 percent of its value by the close of the market.
The benchmark index hosted on the Euronext Amsterdam exchange dropped 0.8 percent overall to close at 1,081.13 points.
Broader market shifts and oil price drops
The mid-cap segment fared slightly better, with the local index for mid-sized Dutch companies closing marginally higher at 1,090.97 points.
Broader European markets generally saw positive movement, with gains recorded across major exchanges in London, Paris, and Frankfurt.
Energy stocks on the local exchange faced separate headwinds as international crude oil prices fell sharply following diplomatic developments in the Middle East.
Lower fuel costs did provide a small lift to airline group Air France-KLM, which gained 1.3 percent in Amsterdam trading.
