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 — 1983

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1983-12-30$1.96$1.96198,400——
1983-12-29$1.97$1.971,592,000——
1983-12-28$1.90$1.90425,600——
1983-12-27$1.89$1.89566,400——
1983-12-23$1.87$1.87216,000——
1983-12-22$1.87$1.871,180,800——
1983-12-21$1.82$1.82540,800——
1983-12-20$1.80$1.80545,600——
1983-12-19$1.80$1.80296,000——
1983-12-16$1.80$1.80441,600——
1983-12-15$1.82$1.82283,200——
1983-12-14$1.84$1.84560,000——
1983-12-13$1.86$1.861,044,800——
1983-12-12$1.87$1.87499,200——
1983-12-09$1.88$1.88523,200——
1983-12-08$1.87$1.871,360,000——
1983-12-07$1.91$1.91843,200——
1983-12-06$1.90$1.901,323,200——
1983-12-05$1.84$1.84198,400——
1983-12-02$1.85$1.85470,400——
1983-12-01$1.86$1.862,281,600——
1983-11-30$1.82$1.821,656,000——
1983-11-29$1.81$1.811,072,000——
1983-11-28$1.77$1.77420,800——
1983-11-25$1.77$1.7749,600——
1983-11-23$1.77$1.77171,200——
1983-11-22$1.75$1.752,803,200——
1983-11-21$1.80$1.80705,600——
1983-11-18$1.80$1.804,755,200——
1983-11-17$1.84$1.845,467,200——
1983-11-16$1.86$1.861,852,800——
1983-11-15$1.85$1.85137,600——
1983-11-14$1.86$1.86427,200——
1983-11-11$1.85$1.85150,400——
1983-11-10$1.86$1.861,616,000——
1983-11-09$1.85$1.85720,000——
1983-11-08$1.85$1.852,040,000——
1983-11-07$1.86$1.861,556,800——
1983-11-04$1.84$1.841,132,800——
1983-11-03$1.85$1.85433,600——
1983-11-02$1.84$1.841,019,200——
1983-11-01$1.82$1.821,483,200——
1983-10-31$1.81$1.81400,000——
1983-10-28$1.80$1.801,427,200——
1983-10-27$1.77$1.771,540,800——
1983-10-26$1.83$1.83318,400——
1983-10-25$1.83$1.83742,400——
1983-10-24$1.80$1.80806,400——
1983-10-21$1.80$1.801,963,200——
1983-10-20$1.79$1.791,395,200——
1983-10-19$1.78$1.783,113,600——
1983-10-18$1.78$1.78430,400——
1983-10-17$1.78$1.781,129,600——
1983-10-14$1.78$1.78315,200——
1983-10-13$1.74$1.74211,200——
1983-10-12$1.73$1.731,716,800——
1983-10-11$1.73$1.731,844,800——
1983-10-10$1.76$1.76806,400——
1983-10-07$1.74$1.742,532,800——
1983-10-06$1.72$1.721,520,000——
1983-10-05$1.66$1.66752,000——
1983-10-04$1.66$1.66363,200——
1983-10-03$1.65$1.65276,800——
1983-09-30$1.65$1.65753,600——
1983-09-29$1.67$1.672,008,000——
1983-09-28$1.69$1.69574,400——
1983-09-27$1.69$1.69904,000——
1983-09-26$1.72$1.72475,200——
1983-09-23$1.72$1.721,176,000——
1983-09-22$1.67$1.671,192,000——
1983-09-21$1.63$1.62840,000——
1983-09-20$1.59$1.59908,800——
1983-09-19$1.58$1.581,443,200——
1983-09-16$1.55$1.551,732,800——
1983-09-15$1.53$1.532,174,400——
1983-09-14$1.65$1.65206,400——
1983-09-13$1.66$1.66230,400——
1983-09-12$1.65$1.65449,600——
1983-09-09$1.70$1.70107,200——
1983-09-08$1.70$1.70977,600——
1983-09-07$1.72$1.72340,800——
1983-09-06$1.70$1.70249,600——
1983-09-02$1.68$1.681,872,000——
1983-09-01$1.63$1.631,123,200——
1983-08-31$1.63$1.621,201,600——
1983-08-30$1.59$1.59361,600——
1983-08-29$1.60$1.60163,200——
1983-08-26$1.59$1.59427,200——
1983-08-25$1.61$1.61116,800——
1983-08-24$1.61$1.61790,400——
1983-08-23$1.62$1.62550,400——
1983-08-22$1.61$1.61484,800——
1983-08-19$1.59$1.59665,600——
1983-08-18$1.63$1.63955,200——
1983-08-17$1.63$1.631,009,600——
1983-08-16$1.62$1.62825,600——
1983-08-15$1.60$1.60705,600——
1983-08-12$1.59$1.59944,000——
1983-08-11$1.60$1.602,275,200——
1983-08-10$1.58$1.586,060,800——
1983-08-09$1.61$1.611,403,200——
1983-08-08$1.63$1.63475,200——
1983-08-05$1.66$1.66273,600——
1983-08-04$1.68$1.68609,600——
1983-08-03$1.72$1.727,342,400——
1983-08-02$1.70$1.702,062,400——
1983-08-01$1.70$1.70408,000——
1983-07-29$1.70$1.701,126,400——
1983-07-28$1.72$1.72598,400——
1983-07-27$1.73$1.73851,200——
1983-07-26$1.73$1.73483,200——
1983-07-25$1.72$1.72774,400——
1983-07-22$1.72$1.721,320,000——
1983-07-21$1.72$1.72715,200——
1983-07-20$1.71$1.711,108,800——
1983-07-19$1.72$1.723,526,400——
1983-07-18$1.73$1.73628,800——
1983-07-15$1.75$1.7576,800——
1983-07-14$1.76$1.76915,200——
1983-07-13$1.75$1.75756,800——
1983-07-12$1.79$1.79707,200——
1983-07-11$1.84$1.84427,200——
1983-07-08$1.83$1.83796,800——
1983-07-07$1.79$1.79382,400——
1983-07-06$1.77$1.77486,400——
1983-07-05$1.78$1.78542,400——
1983-07-01$1.82$1.823,032,000——
1983-06-30$1.80$1.801,310,400——
1983-06-29$1.82$1.821,412,800——
1983-06-28$1.80$1.808,876,800——
1983-06-27$1.82$1.822,161,600——
1983-06-24$1.86$1.8622,072,000——
1983-06-23$1.86$1.86281,600——
1983-06-22$1.92$1.92316,800——
1983-06-21$1.92$1.92468,800——
1983-06-20$1.95$1.95651,200——
1983-06-17$2.05$2.05339,200——
1983-06-16$2.06$2.06924,800——
1983-06-15$2.08$2.08406,400——
1983-06-14$2.08$2.085,265,600——
1983-06-13$2.08$2.081,326,400——
1983-06-10$2.08$2.08153,600——
1983-06-09$2.05$2.05318,400——
1983-06-08$2.06$2.061,608,000——
1983-06-07$2.02$2.02174,400——
1983-06-06$2.02$2.023,016,000——
1983-06-03$2.02$2.02180,800——
1983-06-02$2.02$2.02337,600——
1983-06-01$2.05$2.051,590,400——
1983-05-31$2.04$2.04537,600——
1983-05-27$2.03$2.031,632,000——
1983-05-26$1.98$1.981,107,200——
1983-05-25$1.94$1.94817,600——
1983-05-24$1.91$1.91592,000——
1983-05-23$1.88$1.88860,800——
1983-05-20$1.91$1.911,731,200——
1983-05-19$1.94$1.941,212,800——
1983-05-18$2.02$2.023,755,200——
1983-05-17$1.93$1.93876,800——
1983-05-16$1.92$1.922,214,400——
1983-05-13$1.93$1.933,142,400——
1983-05-12$1.83$1.831,646,400——
1983-05-11$1.82$1.823,044,800——
1983-05-10$1.80$1.80272,000——
1983-05-09$1.79$1.79225,600——
1983-05-06$1.80$1.80763,200——
1983-05-05$1.73$1.732,553,600——
1983-05-04$1.74$1.741,337,600——
1983-05-03$1.75$1.75649,600——
1983-05-02$1.77$1.771,174,400——
1983-04-29$1.76$1.761,931,200——
1983-04-28$1.71$1.712,336,000——
1983-04-27$1.70$1.703,249,600——
1983-04-26$1.74$1.74216,000——
1983-04-25$1.73$1.73795,200——
1983-04-22$1.73$1.73153,600——
1983-04-21$1.74$1.74267,200——
1983-04-20$1.74$1.74985,600——
1983-04-19$1.73$1.73248,000——
1983-04-18$1.74$1.74812,800——
1983-04-15$1.75$1.751,240,000——
1983-04-14$1.73$1.732,222,400——
1983-04-13$1.73$1.731,729,600——
1983-04-12$1.75$1.75540,800——
1983-04-11$1.74$1.741,486,400——
1983-04-08$1.75$1.75579,200——
1983-04-07$1.73$1.731,240,000——
1983-04-06$1.73$1.732,184,000——
1983-04-05$1.73$1.73880,000——
1983-04-04$1.67$1.671,864,000——
1983-03-31$1.70$1.70961,600——
1983-03-30$1.72$1.72800,000——
1983-03-29$1.72$1.722,929,600——
1983-03-28$1.76$1.76720,000——
1983-03-25$1.80$1.80176,000——
1983-03-24$1.81$1.81755,200——
1983-03-23$1.84$1.84302,400——
1983-03-22$1.85$1.85904,000——
1983-03-21$1.88$1.88380,800——
1983-03-18$1.89$1.894,979,200——
1983-03-17$1.88$1.88870,400——
1983-03-16$1.87$1.8783,200——
1983-03-15$1.89$1.89660,800——
1983-03-14$1.88$1.88108,800——
1983-03-11$1.89$1.89307,200——
1983-03-10$1.88$1.881,742,400——
1983-03-09$1.87$1.871,884,800——
1983-03-08$1.88$1.88684,800——
1983-03-07$1.88$1.881,020,800——
1983-03-04$1.84$1.84739,200——
1983-03-03$1.85$1.851,860,800——
1983-03-02$1.86$1.861,360,000——
1983-03-01$1.88$1.88928,000——
1983-02-28$1.87$1.87272,000——
1983-02-25$1.86$1.861,004,800——
1983-02-24$1.89$1.892,771,200——
1983-02-23$1.86$1.86788,800——
1983-02-22$1.88$1.88400,000——
1983-02-18$1.88$1.88601,600——
1983-02-17$1.88$1.881,232,000——
1983-02-16$1.88$1.881,592,000——
1983-02-15$1.88$1.88377,600——
1983-02-14$1.90$1.9099,200——
1983-02-11$1.91$1.91558,400——
1983-02-10$1.90$1.90544,000——
1983-02-09$1.87$1.87550,400——
1983-02-08$1.83$1.83886,400——
1983-02-07$1.83$1.83771,200——
1983-02-04$1.81$1.81432,000——
1983-02-03$1.83$1.83425,600——
1983-02-02$1.83$1.83360,000——
1983-02-01$1.84$1.84720,000——
1983-01-31$1.86$1.861,475,200——
1983-01-28$1.87$1.87694,400——
1983-01-27$1.86$1.861,820,800——
1983-01-26$1.86$1.861,088,000——
1983-01-25$1.86$1.862,216,000——
1983-01-24$1.91$1.911,088,000——
1983-01-21$1.98$1.98433,600——
1983-01-20$1.98$1.981,070,400——
1983-01-19$1.95$1.951,705,600——
1983-01-18$1.98$1.981,329,600——
1983-01-17$2.02$2.021,235,200——
1983-01-14$1.98$1.98865,600——
1983-01-13$1.95$1.951,299,200——
1983-01-12$1.93$1.931,505,600——
1983-01-11$1.91$1.914,296,000——
1983-01-10$1.91$1.911,840,000——
1983-01-07$1.85$1.851,550,400——
1983-01-06$1.82$1.824,232,000——
1983-01-05$1.70$1.706,534,400——
1983-01-04$1.69$1.69990,400——
1983-01-03$1.70$1.70190,400——