Ecolab closed at $315.01 on Nov 4, up 3.39% — matching its 52-week closing high. Volume of 2.7M shares was 1.86× its 20-day average (above normal).
Split-adjusted performance: +12.2% over one month, +19.6% over six months, +22.4% over one year.
In the quarter ended Sep 30, 2026, revenue was $4.69B, up 12.7% from a year earlier, with a net margin of 11.7%.
Short interest was 4.9M shares at the Oct 15 settlement, down 9.6% from the prior report (2.0% of float, 4.0 days to cover).