NYSE:ECL | Historical Stock Price | ECOLAB INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1973-02-21 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.96$3.44$12.34$44.32$159.12$571.331973-02-212026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 1985

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1985-12-31$2.58$2.58854,400——
1985-12-30$2.59$2.59505,600——
1985-12-27$2.59$2.59244,800——
1985-12-26$2.58$2.5832,000——
1985-12-24$2.59$2.59129,600——
1985-12-23$2.57$2.57667,200——
1985-12-20$2.59$2.59526,400——
1985-12-19$2.59$2.59779,200——
1985-12-18$2.57$2.571,374,400——
1985-12-17$2.56$2.561,169,600——
1985-12-16$2.56$2.56910,400——
1985-12-13$2.51$2.51198,400——
1985-12-12$2.50$2.50443,200——
1985-12-11$2.51$2.51305,600——
1985-12-10$2.49$2.49184,000——
1985-12-09$2.48$2.48169,600——
1985-12-06$2.48$2.48390,400——
1985-12-05$2.48$2.48515,200——
1985-12-04$2.48$2.482,937,600——
1985-12-03$2.45$2.45876,800——
1985-12-02$2.38$2.381,720,000——
1985-11-29$2.38$2.38390,400——
1985-11-27$2.36$2.36888,000——
1985-11-26$2.33$2.33622,400——
1985-11-25$2.34$2.34947,200——
1985-11-22$2.33$2.33312,000——
1985-11-21$2.33$2.33395,200——
1985-11-20$2.33$2.3380,000——
1985-11-19$2.33$2.33256,000——
1985-11-18$2.32$2.3257,600——
1985-11-15$2.34$2.34595,200——
1985-11-14$2.33$2.33336,000——
1985-11-13$2.32$2.32270,400——
1985-11-12$2.32$2.322,115,200——
1985-11-11$2.31$2.31726,400——
1985-11-08$2.31$2.311,977,600——
1985-11-07$2.31$2.31857,600——
1985-11-06$2.33$2.33910,400——
1985-11-05$2.33$2.333,440,000——
1985-11-04$2.32$2.32612,800——
1985-11-01$2.34$2.341,372,800——
1985-10-31$2.32$2.32476,800——
1985-10-30$2.30$2.30480,000——
1985-10-29$2.27$2.271,641,600——
1985-10-28$2.16$2.16118,400——
1985-10-25$2.18$2.18166,400——
1985-10-24$2.17$2.1767,200——
1985-10-23$2.16$2.1680,000——
1985-10-22$2.17$2.17542,400——
1985-10-21$2.16$2.16176,000——
1985-10-18$2.18$2.18475,200——
1985-10-17$2.14$2.141,513,600——
1985-10-16$2.09$2.09617,600——
1985-10-15$2.08$2.08825,600——
1985-10-14$2.07$2.07220,800——
1985-10-11$2.08$2.081,408,000——
1985-10-10$2.08$2.08278,400——
1985-10-09$2.07$2.07129,600——
1985-10-08$2.07$2.07409,600——
1985-10-07$2.09$2.09472,000——
1985-10-04$2.11$2.113,200——
1985-10-03$2.10$2.10332,800——
1985-10-02$2.09$2.09115,200——
1985-10-01$2.09$2.091,308,800——
1985-09-30$2.08$2.08688,000——
1985-09-26$2.16$2.162,518,400——
1985-09-25$2.17$2.1765,600——
1985-09-24$2.17$2.1797,600——
1985-09-23$2.19$2.19129,600——
1985-09-20$2.17$2.17107,200——
1985-09-19$2.17$2.17710,400——
1985-09-18$2.18$2.18472,000——
1985-09-17$2.19$2.191,460,800——
1985-09-16$2.17$2.17350,400——
1985-09-13$2.17$2.17560,000——
1985-09-12$2.17$2.17848,000——
1985-09-11$2.18$2.18292,800——
1985-09-10$2.18$2.181,276,800——
1985-09-09$2.17$2.172,969,600——
1985-09-06$2.20$2.20870,400——
1985-09-05$2.18$2.182,292,800——
1985-09-04$2.19$2.191,489,600——
1985-09-03$2.19$2.192,779,200——
1985-08-30$2.16$2.16222,400——
1985-08-29$2.17$2.1748,000——
1985-08-28$2.17$2.17187,200——
1985-08-27$2.16$2.161,084,800——
1985-08-26$2.16$2.16302,400——
1985-08-23$2.16$2.16198,400——
1985-08-22$2.17$2.17636,800——
1985-08-21$2.14$2.14401,600——
1985-08-20$2.11$2.1130,400——
1985-08-19$2.11$2.11680,000——
1985-08-16$2.11$2.111,008,000——
1985-08-15$2.12$2.12678,400——
1985-08-14$2.13$2.123,118,400——
1985-08-13$2.11$2.111,140,800——
1985-08-12$2.16$2.16232,000——
1985-08-09$2.17$2.17308,800——
1985-08-08$2.18$2.182,092,800——
1985-08-07$2.18$2.181,324,800——
1985-08-06$2.20$2.20353,600——
1985-08-05$2.21$2.21529,600——
1985-08-02$2.16$2.16219,200——
1985-08-01$2.16$2.161,694,400——
1985-07-31$2.15$2.15321,600——
1985-07-30$2.15$2.15563,200——
1985-07-29$2.17$2.174,115,200——
1985-07-26$2.13$2.12241,600——
1985-07-25$2.10$2.10499,200——
1985-07-24$2.10$2.10358,400——
1985-07-23$2.09$2.09249,600——
1985-07-22$2.09$2.09390,400——
1985-07-19$2.07$2.071,440,000——
1985-07-18$2.07$2.07224,000——
1985-07-17$2.11$2.11913,600——
1985-07-16$2.14$2.14486,400——
1985-07-15$2.13$2.13803,200——
1985-07-12$2.10$2.10355,200——
1985-07-11$2.07$2.071,619,200——
1985-07-10$2.06$2.06406,400——
1985-07-09$2.05$2.05227,200——
1985-07-08$2.06$2.06676,800——
1985-07-05$2.06$2.06616,000——
1985-07-03$2.07$2.07356,800——
1985-07-02$2.07$2.07102,400——
1985-07-01$2.07$2.07464,000——
1985-06-28$2.08$2.081,633,600——
1985-06-27$2.07$2.07873,600——
1985-06-26$2.01$2.01187,200——
1985-06-25$1.99$1.99384,000——
1985-06-24$1.98$1.98216,000——
1985-06-21$1.98$1.98420,800——
1985-06-20$1.99$1.9941,600——
1985-06-19$1.98$1.98404,800——
1985-06-18$1.97$1.97155,200——
1985-06-17$1.97$1.97280,000——
1985-06-14$1.96$1.96344,000——
1985-06-13$1.98$1.981,144,000——
1985-06-12$2.00$2.00819,200——
1985-06-11$2.03$2.03630,400——
1985-06-10$2.02$2.02340,800——
1985-06-07$2.02$2.02305,600——
1985-06-06$2.02$2.02780,800——
1985-06-05$2.00$2.00792,000——
1985-06-04$2.02$2.02520,000——
1985-06-03$2.05$2.05891,200——
1985-05-31$2.07$2.071,059,200——
1985-05-30$1.98$1.98476,800——
1985-05-29$1.97$1.971,476,800——
1985-05-28$2.00$2.0088,000——
1985-05-24$1.99$1.9924,000——
1985-05-23$1.98$1.98576,000——
1985-05-22$1.98$1.98601,600——
1985-05-21$2.00$2.00297,600——
1985-05-20$2.00$2.00560,000——
1985-05-17$1.97$1.97227,200——
1985-05-16$1.97$1.97643,200——
1985-05-15$1.98$1.981,136,000——
1985-05-14$1.94$1.94332,800——
1985-05-13$1.93$1.93800,000——
1985-05-10$1.89$1.891,001,600——
1985-05-09$1.89$1.891,419,200——
1985-05-08$1.86$1.86617,600——
1985-05-07$1.86$1.861,108,800——
1985-05-06$1.78$1.78360,000——
1985-05-03$1.79$1.79384,000——
1985-05-02$1.80$1.801,017,600——
1985-05-01$1.80$1.80510,400——
1985-04-30$1.82$1.82222,400——
1985-04-29$1.83$1.83281,600——
1985-04-26$1.84$1.8472,000——
1985-04-25$1.82$1.82227,200——
1985-04-24$1.82$1.82427,200——
1985-04-23$1.84$1.8456,000——
1985-04-22$1.85$1.85340,800——
1985-04-19$1.86$1.86513,600——
1985-04-18$1.84$1.84560,000——
1985-04-17$1.84$1.84363,200——
1985-04-16$1.88$1.88720,000——
1985-04-15$1.88$1.88816,000——
1985-04-12$1.88$1.88473,600——
1985-04-11$1.88$1.88971,200——
1985-04-10$1.88$1.88825,600——
1985-04-09$1.87$1.87252,800——
1985-04-08$1.86$1.86171,200——
1985-04-04$1.85$1.8597,600——
1985-04-03$1.84$1.84246,400——
1985-04-02$1.84$1.84136,000——
1985-04-01$1.84$1.84737,600——
1985-03-29$1.81$1.81126,400——
1985-03-28$1.78$1.78366,400——
1985-03-27$1.76$1.76563,200——
1985-03-26$1.73$1.73259,200——
1985-03-25$1.73$1.73339,200——
1985-03-22$1.74$1.74177,600——
1985-03-21$1.75$1.75128,000——
1985-03-20$1.75$1.75254,400——
1985-03-19$1.75$1.75726,400——
1985-03-18$1.73$1.73308,800——
1985-03-15$1.73$1.73616,000——
1985-03-14$1.72$1.72446,400——
1985-03-13$1.71$1.711,158,400——
1985-03-12$1.79$1.79291,200——
1985-03-11$1.80$1.80577,600——
1985-03-08$1.80$1.80276,800——
1985-03-07$1.80$1.80928,000——
1985-03-06$1.82$1.82582,400——
1985-03-05$1.81$1.81747,200——
1985-03-04$1.79$1.792,494,400——
1985-03-01$1.77$1.77352,000——
1985-02-28$1.78$1.78374,400——
1985-02-27$1.77$1.77220,800——
1985-02-26$1.77$1.77174,400——
1985-02-25$1.77$1.77246,400——
1985-02-22$1.78$1.78491,200——
1985-02-21$1.80$1.801,955,200——
1985-02-20$1.83$1.83632,000——
1985-02-19$1.82$1.82518,400——
1985-02-15$1.84$1.8436,800——
1985-02-14$1.85$1.85334,400——
1985-02-13$1.86$1.86835,200——
1985-02-12$1.81$1.81945,600——
1985-02-11$1.80$1.80324,800——
1985-02-08$1.80$1.8060,800——
1985-02-07$1.79$1.7994,400——
1985-02-06$1.79$1.79166,400——
1985-02-05$1.79$1.79569,600——
1985-02-04$1.79$1.79540,800——
1985-02-01$1.80$1.80723,200——
1985-01-31$1.82$1.82728,000——
1985-01-30$1.80$1.801,073,600——
1985-01-29$1.80$1.80563,200——
1985-01-28$1.79$1.791,161,600——
1985-01-25$1.78$1.78196,800——
1985-01-24$1.77$1.771,036,800——
1985-01-23$1.76$1.76329,600——
1985-01-22$1.73$1.73224,000——
1985-01-21$1.73$1.73160,000——
1985-01-18$1.74$1.74177,600——
1985-01-17$1.73$1.73136,000——
1985-01-16$1.73$1.73140,800——
1985-01-15$1.73$1.73912,000——
1985-01-14$1.73$1.73540,800——
1985-01-11$1.73$1.73675,200——
1985-01-10$1.71$1.711,036,800——
1985-01-09$1.69$1.692,497,600——
1985-01-08$1.70$1.7084,800——
1985-01-07$1.69$1.691,635,200——
1985-01-04$1.69$1.69238,400——
1985-01-03$1.68$1.68808,000——
1985-01-02$1.69$1.691,067,200——