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 — 1998

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1998-12-31$18.09$23.39322,200——
1998-12-30$18.41$23.80807,600——
1998-12-29$18.84$24.36530,400——
1998-12-28$18.03$23.31456,000——
1998-12-24$17.50$22.63276,200——
1998-12-23$17.28$22.28498,800——
1998-12-22$16.84$21.71245,400——
1998-12-21$16.91$21.79343,600——
1998-12-18$16.84$21.71506,400——
1998-12-17$16.63$21.431,082,200——
1998-12-16$16.09$20.75400,600——
1998-12-15$16.13$20.79261,800——
1998-12-14$15.97$20.58227,800——
1998-12-11$15.84$20.42248,200——
1998-12-10$15.91$20.50294,800——
1998-12-09$16.19$20.87338,800——
1998-12-08$15.63$20.14374,600——
1998-12-07$16.22$20.91283,000——
1998-12-04$15.78$20.34377,600——
1998-12-03$16.09$20.75656,800——
1998-12-02$15.59$20.10269,400——
1998-12-01$15.59$20.10915,000——
1998-11-30$15.47$19.94248,800——
1998-11-27$15.78$20.34117,200——
1998-11-25$16.13$20.79328,600——
1998-11-24$16.19$20.87635,400——
1998-11-23$15.97$20.58523,200——
1998-11-20$15.44$19.90267,400——
1998-11-19$15.53$20.02378,400——
1998-11-18$15.56$20.06355,400——
1998-11-17$15.88$20.46530,000——
1998-11-16$15.56$20.061,095,000——
1998-11-13$15.50$19.98212,800——
1998-11-12$15.41$19.86310,200——
1998-11-11$15.31$19.74504,400——
1998-11-10$15.25$19.66484,800——
1998-11-09$15.19$19.58229,400——
1998-11-06$15.22$19.62421,800——
1998-11-05$15.25$19.66278,400——
1998-11-04$15.06$19.42465,600——
1998-11-03$14.97$19.30600,200——
1998-11-02$15.00$19.341,002,800——
1998-10-30$14.94$19.26416,400——
1998-10-29$14.81$19.09294,400——
1998-10-28$14.47$18.65311,400——
1998-10-27$14.69$18.93302,000——
1998-10-26$14.84$19.13450,800——
1998-10-23$14.72$18.97294,800——
1998-10-22$14.97$19.30530,000——
1998-10-21$14.97$19.30346,400——
1998-10-20$14.94$19.26662,400——
1998-10-19$15.00$19.34877,800——
1998-10-16$15.00$19.34964,400——
1998-10-15$14.59$18.81745,600——
1998-10-14$14.03$18.09675,600——
1998-10-13$14.25$18.37394,400——
1998-10-12$14.44$18.61217,600——
1998-10-09$14.44$18.61566,600——
1998-10-08$13.50$17.401,171,000——
1998-10-07$14.44$18.61567,600——
1998-10-06$14.81$19.09470,600——
1998-10-05$14.56$18.77744,000——
1998-10-02$15.50$19.98532,000——
1998-10-01$14.00$18.05429,600——
1998-09-30$14.22$18.33243,200——
1998-09-29$14.47$18.65496,800——
1998-09-28$14.69$18.93328,000——
1998-09-25$14.84$19.13314,000——
1998-09-24$14.50$18.69392,200——
1998-09-23$14.72$18.97324,800——
1998-09-22$14.63$18.85280,200——
1998-09-21$14.56$18.77341,800——
1998-09-18$14.13$18.21598,600——
1998-09-17$14.13$18.21234,400——
1998-09-16$14.41$18.57180,200——
1998-09-15$14.38$18.53310,600——
1998-09-14$14.03$18.09257,000——
1998-09-11$14.25$18.37357,200——
1998-09-10$14.03$18.03314,400——
1998-09-09$14.06$18.07222,600——
1998-09-08$14.22$18.27389,400——
1998-09-04$13.84$17.78287,200——
1998-09-03$13.91$17.87295,800——
1998-09-02$14.28$18.35380,200——
1998-09-01$14.19$18.231,103,600——
1998-08-31$13.91$17.87517,400——
1998-08-28$14.13$18.15383,800——
1998-08-27$14.16$18.19392,200——
1998-08-26$14.59$18.75327,200——
1998-08-25$14.91$19.15328,600——
1998-08-24$14.72$18.91264,400——
1998-08-21$14.75$18.95434,600——
1998-08-20$14.81$19.03325,600——
1998-08-19$14.91$19.15346,400——
1998-08-18$14.84$19.07235,400——
1998-08-17$14.94$19.19168,000——
1998-08-14$14.81$19.03236,400——
1998-08-13$14.78$18.99356,600——
1998-08-12$14.84$19.07662,400——
1998-08-11$14.72$18.91392,200——
1998-08-10$14.88$19.11298,200——
1998-08-07$15.06$19.35393,600——
1998-08-06$15.13$19.43509,200——
1998-08-05$14.94$19.19878,600——
1998-08-04$15.06$19.35431,000——
1998-08-03$15.59$20.03268,000——
1998-07-31$15.69$20.15271,600——
1998-07-30$16.00$20.55429,200——
1998-07-29$15.69$20.15358,200——
1998-07-28$15.81$20.31326,600——
1998-07-27$16.16$20.76397,400——
1998-07-24$15.78$20.27201,200——
1998-07-23$16.03$20.59195,200——
1998-07-22$16.31$20.96326,600——
1998-07-21$16.16$20.76221,800——
1998-07-20$16.16$20.76215,400——
1998-07-17$15.88$20.39293,800——
1998-07-16$16.25$20.88389,400——
1998-07-15$15.88$20.39350,200——
1998-07-14$16.22$20.84472,600——
1998-07-13$15.94$20.47342,200——
1998-07-10$16.34$21.00523,400——
1998-07-09$16.06$20.64493,200——
1998-07-08$16.06$20.64519,400——
1998-07-07$15.38$19.75393,200——
1998-07-06$15.97$20.51287,000——
1998-07-02$15.63$20.07240,600——
1998-07-01$15.53$19.95369,000——
1998-06-30$15.50$19.91659,200——
1998-06-29$15.97$20.51292,000——
1998-06-26$15.84$20.35169,800——
1998-06-25$15.75$20.23453,400——
1998-06-24$15.84$20.35172,200——
1998-06-23$15.63$20.07194,800——
1998-06-22$15.50$19.91226,800——
1998-06-19$15.47$19.87473,400——
1998-06-18$15.81$20.31166,600——
1998-06-17$15.66$20.11294,200——
1998-06-16$15.53$19.95316,200——
1998-06-15$15.31$19.67602,200——
1998-06-12$15.28$19.63511,600——
1998-06-11$14.94$19.13450,200——
1998-06-10$15.50$19.85245,400——
1998-06-09$15.59$19.97141,800——
1998-06-08$15.59$19.97311,400——
1998-06-05$15.56$19.93219,000——
1998-06-04$15.41$19.73340,200——
1998-06-03$15.22$19.49305,400——
1998-06-02$15.31$19.61410,000——
1998-06-01$15.44$19.77515,400——
1998-05-29$15.44$19.77395,400——
1998-05-28$15.53$19.89260,600——
1998-05-27$15.47$19.81297,200——
1998-05-26$15.63$20.01149,800——
1998-05-22$15.88$20.33101,400——
1998-05-21$15.72$20.13517,400——
1998-05-20$15.66$20.05364,000——
1998-05-19$15.75$20.17307,800——
1998-05-18$15.72$20.13344,400——
1998-05-15$15.94$20.41219,800——
1998-05-14$15.81$20.25450,800——
1998-05-13$16.00$20.49177,400——
1998-05-12$16.19$20.73176,600——
1998-05-11$16.09$20.61157,000——
1998-05-08$16.22$20.77263,400——
1998-05-07$15.78$20.21206,800——
1998-05-06$15.75$20.17236,800——
1998-05-05$16.13$20.65302,000——
1998-05-04$15.94$20.41333,200——
1998-05-01$15.97$20.45200,200——
1998-04-30$15.84$20.29382,800——
1998-04-29$15.50$19.85226,400——
1998-04-28$15.47$19.81159,600——
1998-04-27$15.44$19.77585,000——
1998-04-24$15.53$19.89339,800——
1998-04-23$15.66$20.05270,400——
1998-04-22$15.63$20.01350,800——
1998-04-21$15.81$20.25596,000——
1998-04-20$15.41$19.73377,400——
1998-04-17$15.09$19.33391,000——
1998-04-16$14.94$19.13597,800——
1998-04-15$15.00$19.21438,400——
1998-04-14$14.69$18.81297,000——
1998-04-13$14.31$18.33498,000——
1998-04-09$14.75$18.89271,200——
1998-04-08$14.56$18.65298,800——
1998-04-07$14.63$18.73274,600——
1998-04-06$14.88$19.05410,200——
1998-04-03$14.84$19.01270,400——
1998-04-02$14.81$18.97375,400——
1998-04-01$14.72$18.85673,400——
1998-03-31$14.50$18.57827,200——
1998-03-30$14.22$18.21398,200——
1998-03-27$14.16$18.13376,400——
1998-03-26$14.19$18.17914,000——
1998-03-25$14.19$18.17287,800——
1998-03-24$14.38$18.41786,400——
1998-03-23$14.38$18.41523,600——
1998-03-20$14.34$18.37774,000——
1998-03-19$14.50$18.57559,000——
1998-03-18$14.56$18.65479,800——
1998-03-17$14.56$18.65389,200——
1998-03-16$14.19$18.17425,600——
1998-03-13$14.09$18.05450,000——
1998-03-12$14.22$18.15312,600——
1998-03-11$14.50$18.51200,200——
1998-03-10$14.38$18.35827,000——
1998-03-09$14.41$18.39256,600——
1998-03-06$14.56$18.59658,800——
1998-03-05$14.28$18.23205,200——
1998-03-04$14.44$18.43314,000——
1998-03-03$14.50$18.51459,800——
1998-03-02$14.53$18.55181,200——
1998-02-27$14.41$18.39186,600——
1998-02-26$14.38$18.35189,200——
1998-02-25$14.34$18.31252,600——
1998-02-24$14.16$18.07426,800——
1998-02-23$14.22$18.15396,000——
1998-02-20$14.22$18.15323,800——
1998-02-19$13.91$17.75468,200——
1998-02-18$14.13$18.03213,600——
1998-02-17$14.16$18.07276,000——
1998-02-13$13.97$17.83281,800——
1998-02-12$14.06$17.95464,000——
1998-02-11$14.06$17.95454,200——
1998-02-10$14.09$17.99683,600——
1998-02-09$13.84$17.67448,000——
1998-02-06$13.81$17.63298,000——
1998-02-05$13.72$17.51384,800——
1998-02-04$13.63$17.39276,400——
1998-02-03$13.88$17.71430,000——
1998-02-02$13.81$17.63323,800——
1998-01-30$13.69$17.47333,200——
1998-01-29$13.50$17.23380,600——
1998-01-28$13.59$17.35296,400——
1998-01-27$13.66$17.43230,000——
1998-01-26$13.69$17.47339,600——
1998-01-23$13.69$17.47378,400——
1998-01-22$13.84$17.67232,600——
1998-01-21$13.78$17.59334,000——
1998-01-20$13.81$17.63295,600——
1998-01-16$13.91$17.75380,400——
1998-01-15$13.42$17.13310,400——
1998-01-14$13.53$17.27379,600——
1998-01-13$13.53$17.27588,400——
1998-01-12$13.55$17.29554,400——
1998-01-09$13.59$17.35562,400——
1998-01-08$13.75$17.55333,200——
1998-01-07$13.86$17.69516,400——
1998-01-06$13.89$17.73444,000——
1998-01-05$14.02$17.89479,600——
1998-01-02$13.89$17.73236,400——