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 — 1988

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1988-12-30$3.31$3.49499,200——
1988-12-29$3.23$3.4188,000——
1988-12-28$3.22$3.4025,600——
1988-12-27$3.23$3.41236,000——
1988-12-23$3.19$3.3630,400——
1988-12-22$3.19$3.36353,600——
1988-12-21$3.19$3.36316,000——
1988-12-20$3.17$3.35356,000——
1988-12-19$3.17$3.35236,000——
1988-12-16$3.16$3.33269,600——
1988-12-15$3.11$3.28486,400——
1988-12-14$3.13$3.30260,800——
1988-12-13$3.16$3.31284,800——
1988-12-12$3.22$3.37788,000——
1988-12-09$3.25$3.41204,000——
1988-12-08$3.28$3.4472,000——
1988-12-07$3.33$3.49968,800——
1988-12-06$3.28$3.44181,600——
1988-12-05$3.28$3.44209,600——
1988-12-02$3.20$3.36176,800——
1988-12-01$3.23$3.39178,400——
1988-11-30$3.19$3.34639,200——
1988-11-29$3.14$3.29480,800——
1988-11-28$3.11$3.26318,400——
1988-11-25$3.13$3.28235,200——
1988-11-23$3.11$3.261,250,400——
1988-11-22$3.08$3.23392,800——
1988-11-21$3.06$3.21526,400——
1988-11-18$3.09$3.24797,600——
1988-11-17$3.11$3.26952,000——
1988-11-16$3.16$3.31212,800——
1988-11-15$3.16$3.31607,200——
1988-11-14$3.19$3.34311,200——
1988-11-11$3.19$3.34372,800——
1988-11-10$3.22$3.37269,600——
1988-11-09$3.23$3.39352,000——
1988-11-08$3.27$3.42658,400——
1988-11-07$3.28$3.44842,400——
1988-11-04$3.33$3.49509,600——
1988-11-03$3.38$3.541,340,800——
1988-11-02$3.30$3.46468,800——
1988-11-01$3.33$3.491,053,600——
1988-10-31$3.27$3.42118,400——
1988-10-28$3.28$3.44136,800——
1988-10-27$3.27$3.42864,800——
1988-10-26$3.31$3.47657,600——
1988-10-25$3.28$3.443,339,200——
1988-10-24$3.38$3.541,027,200——
1988-10-21$3.28$3.44309,600——
1988-10-20$3.31$3.471,131,200——
1988-10-19$3.23$3.393,318,400——
1988-10-18$3.19$3.341,154,400——
1988-10-17$3.14$3.29453,600——
1988-10-14$3.11$3.26112,800——
1988-10-13$3.09$3.2499,200——
1988-10-12$3.06$3.211,364,000——
1988-10-11$3.14$3.29165,600——
1988-10-10$3.13$3.28637,600——
1988-10-07$3.11$3.26244,800——
1988-10-06$3.09$3.24278,400——
1988-10-05$3.09$3.24293,600——
1988-10-04$3.05$3.19100,000——
1988-10-03$3.03$3.18399,200——
1988-09-30$3.11$3.26180,000——
1988-09-29$3.11$3.26431,200——
1988-09-28$3.13$3.28638,400——
1988-09-27$3.06$3.21369,600——
1988-09-26$3.06$3.21524,800——
1988-09-23$3.03$3.18349,600——
1988-09-22$2.97$3.11138,400——
1988-09-21$3.00$3.15250,400——
1988-09-20$3.00$3.15210,400——
1988-09-19$3.00$3.15235,200——
1988-09-16$2.97$3.11200,800——
1988-09-15$2.95$3.10163,200——
1988-09-14$3.00$3.15166,400——
1988-09-13$2.97$3.09216,800——
1988-09-12$2.94$3.0653,600——
1988-09-09$2.95$3.08324,000——
1988-09-08$2.94$3.06315,200——
1988-09-07$3.03$3.16124,800——
1988-09-06$3.08$3.21165,600——
1988-09-02$2.98$3.11563,200——
1988-09-01$2.94$3.06102,400——
1988-08-31$2.95$3.08125,600——
1988-08-30$2.98$3.11145,600——
1988-08-29$2.91$3.03255,200——
1988-08-26$2.95$3.0820,000——
1988-08-25$2.97$3.09293,600——
1988-08-24$3.00$3.12335,200——
1988-08-23$3.02$3.14216,000——
1988-08-22$2.92$3.04117,600——
1988-08-19$2.91$3.03148,000——
1988-08-18$2.91$3.0350,400——
1988-08-17$2.94$3.0680,000——
1988-08-16$2.94$3.06160,000——
1988-08-15$2.91$3.03220,800——
1988-08-12$2.88$2.99288,800——
1988-08-11$2.88$2.99215,200——
1988-08-10$2.97$3.09121,600——
1988-08-09$2.98$3.11312,800——
1988-08-08$3.02$3.14433,600——
1988-08-05$3.03$3.16283,200——
1988-08-04$3.09$3.22339,200——
1988-08-03$3.13$3.26549,600——
1988-08-02$3.09$3.22636,000——
1988-08-01$3.06$3.19564,800——
1988-07-29$3.03$3.16401,600——
1988-07-28$3.00$3.12672,000——
1988-07-27$3.00$3.12488,000——
1988-07-26$3.00$3.12171,200——
1988-07-25$2.95$3.08374,400——
1988-07-22$2.89$3.01747,200——
1988-07-21$2.84$2.961,544,000——
1988-07-20$2.94$3.06440,000——
1988-07-19$2.91$3.031,435,200——
1988-07-18$2.84$2.961,102,400——
1988-07-15$2.83$2.951,305,600——
1988-07-14$2.78$2.90972,000——
1988-07-13$2.80$2.91678,400——
1988-07-12$2.80$2.911,412,800——
1988-07-11$2.80$2.91858,400——
1988-07-08$2.84$2.961,017,600——
1988-07-07$2.77$2.882,152,000——
1988-07-06$2.77$2.88415,200——
1988-07-05$2.80$2.91292,000——
1988-07-01$2.81$2.931,076,800——
1988-06-30$2.81$2.93826,400——
1988-06-29$2.69$2.80743,200——
1988-06-28$2.78$2.90876,800——
1988-06-27$2.81$2.931,450,400——
1988-06-24$2.84$2.961,668,000——
1988-06-23$2.86$2.981,228,000——
1988-06-22$2.91$3.032,634,400——
1988-06-21$2.81$2.93319,200——
1988-06-20$2.75$2.86446,400——
1988-06-17$2.83$2.952,542,400——
1988-06-16$2.92$3.041,320,800——
1988-06-15$2.88$2.998,352,000——
1988-06-14$2.97$3.072,782,400——
1988-06-13$3.28$3.40111,200——
1988-06-10$3.28$3.40408,800——
1988-06-09$3.27$3.38105,600——
1988-06-08$3.28$3.40268,000——
1988-06-07$3.25$3.3678,400——
1988-06-06$3.25$3.36392,800——
1988-06-03$3.27$3.3832,000——
1988-06-02$3.28$3.40306,400——
1988-06-01$3.38$3.49380,800——
1988-05-31$3.17$3.28443,200——
1988-05-27$3.03$3.14105,600——
1988-05-26$3.03$3.1471,200——
1988-05-25$3.00$3.10142,400——
1988-05-24$2.98$3.09511,200——
1988-05-23$2.94$3.04225,600——
1988-05-20$2.97$3.07232,000——
1988-05-19$3.03$3.14329,600——
1988-05-18$3.02$3.12244,800——
1988-05-17$3.02$3.12194,400——
1988-05-16$3.03$3.14218,400——
1988-05-13$3.06$3.17157,600——
1988-05-12$2.98$3.09261,600——
1988-05-11$3.02$3.12436,800——
1988-05-10$3.06$3.171,282,400——
1988-05-09$3.00$3.10220,800——
1988-05-06$3.03$3.14212,800——
1988-05-05$3.13$3.23298,400——
1988-05-04$3.20$3.31442,400——
1988-05-03$3.23$3.35187,200——
1988-05-02$3.22$3.331,244,000——
1988-04-29$3.25$3.3680,800——
1988-04-28$3.22$3.33408,800——
1988-04-27$3.20$3.31197,600——
1988-04-26$3.25$3.36652,800——
1988-04-25$3.22$3.33220,800——
1988-04-22$3.25$3.36614,400——
1988-04-21$3.39$3.51808,800——
1988-04-20$3.38$3.491,296,800——
1988-04-19$3.38$3.49217,600——
1988-04-18$3.39$3.51256,000——
1988-04-15$3.39$3.511,169,600——
1988-04-14$3.31$3.43306,400——
1988-04-13$3.45$3.57178,400——
1988-04-12$3.42$3.54182,400——
1988-04-11$3.44$3.56668,000——
1988-04-08$3.38$3.49220,000——
1988-04-07$3.31$3.43365,600——
1988-04-06$3.28$3.40687,200——
1988-04-05$3.25$3.36410,400——
1988-04-04$3.22$3.33176,800——
1988-03-31$3.19$3.30129,600——
1988-03-30$3.27$3.38539,200——
1988-03-29$3.33$3.44555,200——
1988-03-28$3.34$3.46330,400——
1988-03-25$3.33$3.44183,200——
1988-03-24$3.33$3.44382,400——
1988-03-23$3.34$3.461,249,600——
1988-03-22$3.36$3.48136,800——
1988-03-21$3.34$3.4624,800——
1988-03-18$3.36$3.48151,200——
1988-03-17$3.34$3.46232,000——
1988-03-16$3.36$3.48293,600——
1988-03-15$3.41$3.50981,600——
1988-03-14$3.38$3.47409,600——
1988-03-11$3.36$3.46555,200——
1988-03-10$3.41$3.50546,400——
1988-03-09$3.42$3.52267,200——
1988-03-08$3.44$3.54180,000——
1988-03-07$3.39$3.49233,600——
1988-03-04$3.38$3.47248,000——
1988-03-03$3.38$3.473,256,000——
1988-03-02$3.28$3.38673,600——
1988-03-01$3.31$3.41274,400——
1988-02-29$3.20$3.30522,400——
1988-02-26$3.13$3.22884,000——
1988-02-25$3.09$3.18955,200——
1988-02-24$3.05$3.14902,400——
1988-02-23$3.06$3.15564,800——
1988-02-22$3.00$3.09294,400——
1988-02-19$2.98$3.07104,800——
1988-02-18$2.94$3.02264,000——
1988-02-17$2.91$2.99557,600——
1988-02-16$2.81$2.891,862,400——
1988-02-12$2.92$3.01197,600——
1988-02-11$2.95$3.04200,800——
1988-02-10$2.91$2.9938,400——
1988-02-09$2.92$3.01148,800——
1988-02-08$2.84$2.93362,400——
1988-02-05$2.94$3.02131,200——
1988-02-04$2.95$3.04154,400——
1988-02-03$2.97$3.0539,200——
1988-02-02$2.98$3.07144,800——
1988-02-01$2.91$2.99134,400——
1988-01-29$2.95$3.04363,200——
1988-01-28$2.89$2.97195,200——
1988-01-27$2.84$2.9352,000——
1988-01-26$2.81$2.89125,600——
1988-01-25$2.84$2.93303,200——
1988-01-22$2.80$2.88284,000——
1988-01-21$2.78$2.86211,200——
1988-01-20$2.88$2.96152,800——
1988-01-19$2.97$3.05177,600——
1988-01-18$3.00$3.0949,600——
1988-01-15$3.02$3.10223,200——
1988-01-14$2.97$3.0573,600——
1988-01-13$2.91$2.99342,400——
1988-01-12$2.83$2.91260,000——
1988-01-11$2.94$3.02134,400——
1988-01-08$2.98$3.07412,000——
1988-01-07$3.05$3.14527,200——
1988-01-06$3.06$3.15296,800——
1988-01-05$3.13$3.22425,600——
1988-01-04$3.08$3.17130,400——