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 — 1984

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1984-12-31$1.69$1.69182,400
1984-12-28$1.68$1.68432,000
1984-12-27$1.68$1.68206,400
1984-12-26$1.69$1.69560,000
1984-12-24$1.66$1.66849,600
1984-12-21$1.66$1.66100,800
1984-12-20$1.66$1.661,060,800
1984-12-19$1.64$1.64584,000
1984-12-18$1.64$1.641,120,000
1984-12-17$1.61$1.61465,600
1984-12-14$1.61$1.61132,800
1984-12-13$1.58$1.58376,000
1984-12-12$1.58$1.58584,000
1984-12-11$1.57$1.572,304,000
1984-12-10$1.56$1.56497,600
1984-12-07$1.59$1.59686,400
1984-12-06$1.59$1.591,032,000
1984-12-05$1.59$1.591,009,600
1984-12-04$1.59$1.59272,000
1984-12-03$1.58$1.58633,600
1984-11-30$1.58$1.58305,600
1984-11-29$1.57$1.57238,400
1984-11-28$1.57$1.57700,800
1984-11-27$1.57$1.57633,600
1984-11-26$1.55$1.551,046,400
1984-11-23$1.55$1.55488,000
1984-11-21$1.55$1.55553,600
1984-11-20$1.52$1.5262,400
1984-11-19$1.53$1.53233,600
1984-11-16$1.53$1.53331,200
1984-11-15$1.53$1.53177,600
1984-11-14$1.52$1.52312,000
1984-11-13$1.52$1.52465,600
1984-11-12$1.55$1.55809,600
1984-11-09$1.56$1.56712,000
1984-11-08$1.55$1.55232,000
1984-11-07$1.55$1.55304,000
1984-11-06$1.55$1.55224,000
1984-11-05$1.55$1.55129,600
1984-11-02$1.55$1.55392,000
1984-11-01$1.55$1.551,342,400
1984-10-31$1.56$1.56328,000
1984-10-30$1.57$1.57894,400
1984-10-29$1.58$1.58200,000
1984-10-26$1.58$1.58425,600
1984-10-25$1.59$1.59758,400
1984-10-24$1.59$1.59601,600
1984-10-23$1.59$1.59304,000
1984-10-22$1.61$1.613,011,200
1984-10-19$1.59$1.59164,800
1984-10-18$1.58$1.581,112,000
1984-10-17$1.58$1.582,828,800
1984-10-16$1.56$1.56427,200
1984-10-15$1.52$1.521,948,800
1984-10-12$1.52$1.5294,400
1984-10-11$1.52$1.52251,200
1984-10-10$1.53$1.531,091,200
1984-10-09$1.52$1.52409,600
1984-10-08$1.55$1.5588,000
1984-10-05$1.56$1.56144,000
1984-10-04$1.57$1.57638,400
1984-10-03$1.56$1.56865,600
1984-10-02$1.60$1.60156,800
1984-10-01$1.60$1.60272,000
1984-09-28$1.59$1.59353,600
1984-09-27$1.59$1.592,204,800
1984-09-26$1.55$1.55382,400
1984-09-25$1.55$1.55284,800
1984-09-24$1.56$1.56385,600
1984-09-21$1.56$1.561,784,000
1984-09-20$1.52$1.52665,600
1984-09-19$1.55$1.552,766,400
1984-09-18$1.57$1.57411,200
1984-09-17$1.58$1.58673,600
1984-09-14$1.58$1.581,035,200
1984-09-13$1.56$1.562,406,400
1984-09-12$1.57$1.57713,600
1984-09-11$1.56$1.563,747,200
1984-09-10$1.52$1.52467,200
1984-09-07$1.51$1.51281,600
1984-09-06$1.50$1.50579,200
1984-09-05$1.48$1.4859,200
1984-09-04$1.47$1.47259,200
1984-08-31$1.50$1.50131,200
1984-08-30$1.52$1.52104,000
1984-08-29$1.52$1.52187,200
1984-08-28$1.52$1.52320,000
1984-08-27$1.53$1.53401,600
1984-08-24$1.52$1.52156,800
1984-08-23$1.53$1.53160,000
1984-08-22$1.55$1.55240,000
1984-08-21$1.53$1.531,192,000
1984-08-20$1.51$1.51569,600
1984-08-17$1.50$1.501,390,400
1984-08-16$1.46$1.461,856,000
1984-08-15$1.45$1.45326,400
1984-08-14$1.47$1.47219,200
1984-08-13$1.48$1.48166,400
1984-08-10$1.49$1.49617,600
1984-08-09$1.49$1.49604,800
1984-08-08$1.49$1.49400,000
1984-08-07$1.51$1.51920,000
1984-08-06$1.51$1.51196,800
1984-08-03$1.51$1.512,489,600
1984-08-02$1.41$1.41108,800
1984-08-01$1.39$1.39193,600
1984-07-31$1.39$1.39126,400
1984-07-30$1.39$1.39353,600
1984-07-27$1.41$1.411,067,200
1984-07-26$1.39$1.3978,400
1984-07-25$1.39$1.391,278,400
1984-07-24$1.39$1.39686,400
1984-07-23$1.41$1.41499,200
1984-07-20$1.39$1.39142,400
1984-07-19$1.41$1.41171,200
1984-07-18$1.41$1.414,291,200
1984-07-17$1.41$1.4165,600
1984-07-16$1.41$1.4111,200
1984-07-13$1.41$1.4160,800
1984-07-12$1.41$1.41696,000
1984-07-11$1.41$1.41233,600
1984-07-10$1.41$1.41240,000
1984-07-09$1.41$1.41843,200
1984-07-06$1.40$1.40206,400
1984-07-05$1.41$1.4149,600
1984-07-03$1.41$1.41377,600
1984-07-02$1.41$1.41812,800
1984-06-29$1.41$1.41825,600
1984-06-28$1.41$1.41182,400
1984-06-27$1.41$1.411,310,400
1984-06-26$1.43$1.43564,800
1984-06-25$1.43$1.431,203,200
1984-06-22$1.48$1.481,252,800
1984-06-21$1.51$1.51489,600
1984-06-20$1.50$1.50430,400
1984-06-19$1.52$1.5224,000
1984-06-18$1.52$1.52156,800
1984-06-15$1.52$1.52792,000
1984-06-14$1.53$1.53929,600
1984-06-13$1.52$1.522,308,800
1984-06-12$1.53$1.53884,800
1984-06-11$1.53$1.5367,200
1984-06-08$1.52$1.5262,400
1984-06-07$1.52$1.5272,000
1984-06-06$1.52$1.52276,800
1984-06-05$1.51$1.51342,400
1984-06-04$1.52$1.521,292,800
1984-06-01$1.48$1.48179,200
1984-05-31$1.47$1.47379,200
1984-05-30$1.46$1.46686,400
1984-05-29$1.47$1.471,016,000
1984-05-25$1.48$1.481,166,400
1984-05-24$1.45$1.45779,200
1984-05-23$1.45$1.45684,800
1984-05-22$1.45$1.45118,400
1984-05-21$1.45$1.45572,800
1984-05-18$1.44$1.44441,600
1984-05-17$1.44$1.4480,000
1984-05-16$1.45$1.45836,800
1984-05-15$1.45$1.451,019,200
1984-05-14$1.45$1.451,889,600
1984-05-11$1.45$1.45419,200
1984-05-10$1.45$1.452,254,400
1984-05-09$1.44$1.44492,800
1984-05-08$1.44$1.44793,600
1984-05-07$1.44$1.44275,200
1984-05-04$1.45$1.45432,000
1984-05-03$1.44$1.44225,600
1984-05-02$1.45$1.45931,200
1984-05-01$1.45$1.45347,200
1984-04-30$1.43$1.43664,000
1984-04-27$1.43$1.43718,400
1984-04-26$1.43$1.43494,400
1984-04-25$1.41$1.41561,600
1984-04-24$1.41$1.41286,400
1984-04-23$1.41$1.41192,000
1984-04-19$1.42$1.42188,800
1984-04-18$1.42$1.42528,000
1984-04-17$1.43$1.43600,000
1984-04-16$1.43$1.43140,800
1984-04-13$1.44$1.441,164,800
1984-04-12$1.39$1.39160,000
1984-04-11$1.38$1.38558,400
1984-04-10$1.37$1.37374,400
1984-04-09$1.37$1.37491,200
1984-04-06$1.38$1.38304,000
1984-04-05$1.38$1.381,476,800
1984-04-04$1.38$1.384,915,200
1984-04-03$1.38$1.381,161,600
1984-04-02$1.38$1.38472,000
1984-03-30$1.36$1.361,684,800
1984-03-29$1.38$1.381,232,000
1984-03-28$1.37$1.371,499,200
1984-03-27$1.34$1.3480,000
1984-03-26$1.35$1.35246,400
1984-03-23$1.35$1.35936,000
1984-03-22$1.39$1.39352,000
1984-03-21$1.41$1.41427,200
1984-03-20$1.40$1.40440,000
1984-03-19$1.40$1.4075,200
1984-03-16$1.41$1.411,595,200
1984-03-15$1.43$1.43257,600
1984-03-14$1.43$1.431,574,400
1984-03-13$1.43$1.43945,600
1984-03-12$1.41$1.41142,400
1984-03-09$1.43$1.4368,800
1984-03-08$1.43$1.43441,600
1984-03-07$1.39$1.39921,600
1984-03-06$1.46$1.46987,200
1984-03-05$1.46$1.46198,400
1984-03-02$1.46$1.461,563,200
1984-03-01$1.47$1.471,924,800
1984-02-29$1.48$1.48264,000
1984-02-28$1.47$1.471,396,800
1984-02-27$1.48$1.48937,600
1984-02-24$1.48$1.481,801,600
1984-02-23$1.45$1.451,750,400
1984-02-22$1.48$1.48401,600
1984-02-21$1.46$1.46211,200
1984-02-17$1.46$1.46203,200
1984-02-16$1.47$1.47163,200
1984-02-15$1.45$1.45502,400
1984-02-14$1.44$1.44193,600
1984-02-13$1.45$1.451,099,200
1984-02-10$1.47$1.47811,200
1984-02-09$1.48$1.481,897,600
1984-02-08$1.51$1.51300,800
1984-02-07$1.55$1.55931,200
1984-02-06$1.57$1.571,360,000
1984-02-03$1.58$1.581,614,400
1984-02-02$1.57$1.571,548,800
1984-02-01$1.58$1.58310,400
1984-01-31$1.58$1.58940,800
1984-01-30$1.59$1.59844,800
1984-01-27$1.59$1.59590,400
1984-01-26$1.59$1.592,006,400
1984-01-25$1.59$1.591,676,800
1984-01-24$1.59$1.59937,600
1984-01-23$1.63$1.621,300,800
1984-01-20$1.63$1.635,764,800
1984-01-19$1.63$1.621,747,200
1984-01-18$1.62$1.625,065,600
1984-01-17$1.59$1.592,104,000
1984-01-16$1.59$1.59355,200
1984-01-13$1.59$1.59435,200
1984-01-12$1.58$1.581,331,200
1984-01-11$1.56$1.561,249,600
1984-01-10$1.59$1.592,921,600
1984-01-09$1.61$1.61707,200
1984-01-06$1.67$1.672,441,600
1984-01-05$1.70$1.701,534,400
1984-01-04$1.69$1.693,764,800
1984-01-03$1.80$1.801,366,400