Exhibit 99.1
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ASML RECEIVES FAVORABLE RULING FROM FULL ITC


VELDHOVEN, The Netherlands, March 18, 2003 - ASML Holding NV (ASML) today
announced that the US International Trade Commission (Commission) in
Washington D.C. ruled in favor of ASML on all claims filed against the company
by competitor Nikon Corporation of Japan. The Commission denied the petition
by Nikon seeking review of the initial determination made by an administrative
law judge on January 29, 2003.

The Commission determined that ASML had not violated Section 337 of US trade
law, which governs investigations into allegations of certain unfair practices
in import trade.

"The Commission has completed a thorough and far-reaching examination of these
claims and, at three different times, offered conclusions that wholly and
consistently support ASML," said Doug Dunn, president and CEO, ASML. "We are
pleased that our employees, customers and others in the industry now know that
the allegations brought against ASML were without merit."

About ASML

ASML is the world's leading provider of lithography systems for the
semiconductor industry, manufacturing complex machines that are critical to
the production of integrated circuits or chips. Headquartered in Veldhoven,
the Netherlands, ASML is traded on Euronext Amsterdam and NASDAQ under the
symbol ASML. For more information, visit the Web site at www.asml.com.



Media Contact:
Tom McGuire - Corporate Communications - +31.40.268.5758 - Veldhoven, the
Netherlands
Beth Kitchener - Corporate Communications - +31.40.268.2602 - Veldhoven, the
Netherlands

Investor Relations Contacts:
Doug Marsh - US Institutional Investor Relations +1.480.383.4006 - Tempe,
Arizona, USA
Craig DeYoung - Investor Relations +31.40.268.3938 - Veldhoven, the
Netherlands