Ecolab Inc.'s stock surged 5.00% during intraday trading on Tuesday, following the release of its fourth-quarter 2025 financial results and an optimistic outlook for 2026.

The water, hygiene, and infection prevention solutions company reported adjusted earnings per share of $2.08 for the fourth quarter, exceeding the analyst consensus estimate of $2.07. Quarterly sales reached $4.196 billion, also beating expectations of $4.190 billion, representing a 5% year-over-year increase.

Furthermore, Ecolab provided strong guidance for the full year 2026, forecasting adjusted diluted EPS in the range of $8.43 to $8.63, the midpoint of which is above analysts' average estimate. The company expects reported sales to increase 7% to 9%, with organic sales growth of 3% to 4%. Positive commentary from the company's conference call, highlighting expected double-digit growth in its Life Sciences and Ovivo businesses, along with a raised price target from Mizuho Securities, contributed to the bullish investor sentiment.