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 — 1978

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1978-12-29$1.37$1.37320,000——
1978-12-28$1.34$1.34337,600——
1978-12-27$1.34$1.34225,600——
1978-12-26$1.34$1.34108,800——
1978-12-22$1.34$1.34177,600——
1978-12-21$1.33$1.33440,000——
1978-12-20$1.34$1.340——
1978-12-19$1.34$1.34364,800——
1978-12-18$1.31$1.31620,800——
1978-12-15$1.42$1.42252,800——
1978-12-14$1.44$1.44158,400——
1978-12-13$1.45$1.45228,800——
1978-12-12$1.45$1.45398,400——
1978-12-11$1.47$1.47265,600——
1978-12-08$1.48$1.48211,200——
1978-12-07$1.50$1.50134,400——
1978-12-06$1.52$1.52238,400——
1978-12-05$1.50$1.50214,400——
1978-12-04$1.45$1.45144,000——
1978-12-01$1.45$1.45156,800——
1978-11-30$1.45$1.45276,800——
1978-11-29$1.42$1.42252,800——
1978-11-28$1.44$1.44600,000——
1978-11-27$1.52$1.52361,600——
1978-11-24$1.55$1.55286,400——
1978-11-22$1.55$1.55572,800——
1978-11-21$1.51$1.51484,800——
1978-11-20$1.46$1.46283,200——
1978-11-17$1.43$1.43216,000——
1978-11-16$1.39$1.3944,800——
1978-11-15$1.38$1.38259,200——
1978-11-14$1.38$1.38545,600——
1978-11-13$1.38$1.38344,000——
1978-11-10$1.44$1.44788,800——
1978-11-09$1.39$1.39355,200——
1978-11-08$1.38$1.38569,600——
1978-11-07$1.33$1.33563,200——
1978-11-06$1.27$1.27750,400——
1978-11-03$1.27$1.27425,600——
1978-11-02$1.28$1.28457,600——
1978-11-01$1.34$1.34532,800——
1978-10-31$1.34$1.34414,400——
1978-10-30$1.38$1.38328,000——
1978-10-27$1.42$1.42388,800——
1978-10-26$1.49$1.49702,400——
1978-10-25$1.46$1.46428,800——
1978-10-24$1.44$1.44451,200——
1978-10-23$1.48$1.48443,200——
1978-10-20$1.45$1.45684,800——
1978-10-19$1.52$1.52441,600——
1978-10-18$1.51$1.51280,000——
1978-10-17$1.56$1.56609,600——
1978-10-16$1.58$1.58464,000——
1978-10-13$1.63$1.63928,000——
1978-10-12$1.70$1.70217,600——
1978-10-11$1.72$1.72395,200——
1978-10-10$1.72$1.721,513,600——
1978-10-09$1.73$1.7373,600——
1978-10-06$1.73$1.73259,200——
1978-10-05$1.73$1.73358,400——
1978-10-04$1.73$1.73214,400——
1978-10-03$1.73$1.73379,200——
1978-10-02$1.77$1.77484,800——
1978-09-29$1.77$1.771,377,600——
1978-09-28$1.70$1.70417,600——
1978-09-27$1.73$1.73411,200——
1978-09-26$1.76$1.76446,400——
1978-09-25$1.73$1.73558,400——
1978-09-22$1.81$1.811,107,200——
1978-09-21$1.84$1.841,718,400——
1978-09-20$1.74$1.741,161,600——
1978-09-19$1.66$1.661,548,800——
1978-09-18$1.63$1.62577,600——
1978-09-15$1.70$1.701,254,400——
1978-09-14$1.71$1.71710,400——
1978-09-13$1.74$1.74993,600——
1978-09-12$1.81$1.81548,800——
1978-09-11$1.80$1.801,387,200——
1978-09-08$1.81$1.811,632,000——
1978-09-07$1.72$1.72656,000——
1978-09-06$1.65$1.65304,000——
1978-09-05$1.62$1.62232,000——
1978-09-01$1.61$1.61528,000——
1978-08-31$1.63$1.63627,200——
1978-08-30$1.63$1.631,152,000——
1978-08-29$1.56$1.561,105,600——
1978-08-28$1.49$1.49336,000——
1978-08-25$1.49$1.49248,000——
1978-08-24$1.48$1.48897,600——
1978-08-23$1.47$1.471,564,800——
1978-08-22$1.43$1.43236,800——
1978-08-21$1.41$1.41766,400——
1978-08-18$1.45$1.45289,600——
1978-08-17$1.44$1.44304,000——
1978-08-16$1.42$1.42289,600——
1978-08-15$1.42$1.42400,000——
1978-08-14$1.42$1.42267,200——
1978-08-11$1.43$1.43393,600——
1978-08-10$1.41$1.41355,200——
1978-08-09$1.36$1.36953,600——
1978-08-08$1.31$1.31344,000——
1978-08-07$1.32$1.32166,400——
1978-08-04$1.32$1.32289,600——
1978-08-03$1.31$1.31481,600——
1978-08-02$1.33$1.33140,800——
1978-08-01$1.33$1.33118,400——
1978-07-31$1.32$1.32148,800——
1978-07-28$1.31$1.31260,800——
1978-07-27$1.34$1.34150,400——
1978-07-26$1.36$1.36158,400——
1978-07-25$1.36$1.36395,200——
1978-07-24$1.39$1.3972,000——
1978-07-21$1.40$1.40456,000——
1978-07-20$1.42$1.42355,200——
1978-07-19$1.37$1.37304,000——
1978-07-18$1.34$1.34187,200——
1978-07-17$1.36$1.36472,000——
1978-07-14$1.31$1.31124,800——
1978-07-13$1.30$1.30150,400——
1978-07-12$1.30$1.3067,200——
1978-07-11$1.30$1.30153,600——
1978-07-10$1.32$1.32104,000——
1978-07-07$1.33$1.33276,800——
1978-07-06$1.34$1.34136,000——
1978-07-05$1.34$1.34302,400——
1978-07-03$1.35$1.3511,200——
1978-06-30$1.35$1.3520,800——
1978-06-29$1.35$1.35193,600——
1978-06-28$1.34$1.34248,000——
1978-06-27$1.33$1.33272,000——
1978-06-26$1.33$1.33228,800——
1978-06-23$1.34$1.34204,800——
1978-06-22$1.36$1.36163,200——
1978-06-21$1.36$1.36473,600——
1978-06-20$1.39$1.39283,200——
1978-06-19$1.42$1.42188,800——
1978-06-16$1.44$1.44118,400——
1978-06-15$1.46$1.46185,600——
1978-06-14$1.48$1.48444,800——
1978-06-13$1.47$1.47420,800——
1978-06-12$1.46$1.46572,800——
1978-06-09$1.41$1.41628,800——
1978-06-08$1.41$1.41478,400——
1978-06-07$1.39$1.39513,600——
1978-06-06$1.39$1.39366,400——
1978-06-05$1.38$1.38438,400——
1978-06-02$1.37$1.37614,400——
1978-06-01$1.39$1.39443,200——
1978-05-31$1.41$1.41172,800——
1978-05-30$1.41$1.41230,400——
1978-05-26$1.41$1.41142,400——
1978-05-25$1.41$1.41265,600——
1978-05-24$1.41$1.41212,800——
1978-05-23$1.41$1.41420,800——
1978-05-22$1.41$1.41160,000——
1978-05-19$1.42$1.42508,800——
1978-05-18$1.39$1.391,020,800——
1978-05-17$1.39$1.39113,600——
1978-05-16$1.39$1.39873,600——
1978-05-15$1.38$1.38769,600——
1978-05-12$1.38$1.38556,800——
1978-05-11$1.36$1.36649,600——
1978-05-10$1.34$1.34916,800——
1978-05-09$1.33$1.33443,200——
1978-05-08$1.31$1.31276,800——
1978-05-05$1.31$1.31726,400——
1978-05-04$1.30$1.30283,200——
1978-05-03$1.31$1.31819,200——
1978-05-02$1.30$1.301,182,400——
1978-05-01$1.28$1.281,923,200——
1978-04-28$1.28$1.28326,400——
1978-04-27$1.28$1.28193,600——
1978-04-26$1.30$1.30233,600——
1978-04-25$1.29$1.29243,200——
1978-04-24$1.30$1.30188,800——
1978-04-21$1.30$1.30384,000——
1978-04-20$1.30$1.30264,000——
1978-04-19$1.30$1.30806,400——
1978-04-18$1.27$1.27518,400——
1978-04-17$1.27$1.271,056,000——
1978-04-14$1.27$1.27600,000——
1978-04-13$1.20$1.20264,000——
1978-04-12$1.19$1.19270,400——
1978-04-11$1.20$1.20838,400——
1978-04-10$1.20$1.20110,400——
1978-04-07$1.20$1.20126,400——
1978-04-06$1.20$1.20193,600——
1978-04-05$1.20$1.20224,000——
1978-04-04$1.19$1.1965,600——
1978-04-03$1.18$1.18704,000——
1978-03-31$1.20$1.20451,200——
1978-03-30$1.23$1.23272,000——
1978-03-29$1.25$1.25129,600——
1978-03-28$1.25$1.25190,400——
1978-03-27$1.25$1.25144,000——
1978-03-23$1.27$1.27140,800——
1978-03-22$1.27$1.27131,200——
1978-03-21$1.27$1.27123,200——
1978-03-20$1.28$1.28417,600——
1978-03-17$1.25$1.25132,800——
1978-03-16$1.25$1.25481,600——
1978-03-15$1.24$1.24312,000——
1978-03-14$1.23$1.23206,400——
1978-03-13$1.24$1.2499,200——
1978-03-10$1.24$1.2457,600——
1978-03-09$1.24$1.2448,000——
1978-03-08$1.23$1.2378,400——
1978-03-07$1.24$1.24152,000——
1978-03-06$1.23$1.23115,200——
1978-03-03$1.23$1.23196,800——
1978-03-02$1.23$1.23142,400——
1978-03-01$1.23$1.23238,400——
1978-02-28$1.23$1.2364,000——
1978-02-27$1.23$1.23100,800——
1978-02-24$1.24$1.24300,800——
1978-02-23$1.24$1.24113,600——
1978-02-22$1.24$1.24208,000——
1978-02-21$1.22$1.2291,200——
1978-02-17$1.23$1.23150,400——
1978-02-16$1.23$1.23160,000——
1978-02-15$1.23$1.23118,400——
1978-02-14$1.21$1.21172,800——
1978-02-13$1.23$1.2380,000——
1978-02-10$1.22$1.22156,800——
1978-02-09$1.22$1.22171,200——
1978-02-08$1.23$1.2389,600——
1978-02-07$1.23$1.2346,400——
1978-02-06$1.24$1.2427,200——
1978-02-03$1.24$1.2480,000——
1978-02-02$1.24$1.24129,600——
1978-02-01$1.24$1.24123,200——
1978-01-31$1.22$1.22198,400——
1978-01-30$1.23$1.2352,800——
1978-01-27$1.23$1.23100,800——
1978-01-26$1.23$1.23104,000——
1978-01-25$1.26$1.26212,800——
1978-01-24$1.26$1.26222,400——
1978-01-23$1.26$1.26185,600——
1978-01-20$1.25$1.2538,400——
1978-01-19$1.26$1.26161,600——
1978-01-18$1.27$1.2796,000——
1978-01-17$1.27$1.27140,800——
1978-01-16$1.28$1.28129,600——
1978-01-13$1.28$1.28286,400——
1978-01-12$1.27$1.27590,400——
1978-01-11$1.27$1.27102,400——
1978-01-10$1.28$1.28736,000——
1978-01-09$1.30$1.30368,000——
1978-01-06$1.30$1.30332,800——
1978-01-05$1.36$1.36289,600——
1978-01-04$1.38$1.38169,600——
1978-01-03$1.39$1.39225,600——