Waters Corp stock heads into the open after setting a new 12-month high

Waters Corp stock closed the last session on the New York Stock Exchange on September 17, 2026 at a level reported around USD 418.64, up roughly 2.4% from its prior close. In the same session, the Nasdaq Composite gained about 1.8%, so Waters Corp outperformed its primary reference index in percentage terms.

September 17, 2026 in numbers

Waters Corp Inc. (ISIN US9418481035, NYSE: WAT) saw its shares trade as high as USD 429.67 during the September 17, 2026 session before ending the day near USD 418.64, according to a wrap by MarketBeat. That report highlighted that the intraday high marked a new 12-month peak for the stock on September 17, 2026, underscoring the strength of its recent price momentum. Trading volume in that session was reported at 44,033 shares, indicating active interest as the stock pushed into fresh high territory per the same MarketBeat data.

With the intraday high at USD 429.67 and the closing level near USD 418.64 on September 17, 2026, Waters Corp remained just below its newly established 52-week high, as noted by Investing.com. That same report placed the stock less than 1% under the 52-week peak, with a market capitalization around USD 41.6 billion on September 17, 2026. Against this backdrop, Waters Corp continued a three-month price advance of about 20%, as a valuation overview by GuruFocus noted on September 17, 2026.

Outlook for today

No new company specific events for Waters Corp were reported for September 18, 2026 in the latest investor relations and market calendar summaries, so the stock heads into today’s open mainly carrying the technical momentum from its recent 12-month high on September 17, 2026. The broader United States equity market also closed higher on September 17, 2026, with the S&P 500 rising 1.1% to 7,637.76 according to a session recap by Las Vegas Sun, which may continue to frame sentiment around United States listed growth and technology oriented names today.