NASDAQ:ERII | Historical Stock Price | Energy Recovery, 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
2008-07-02 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.87$3.30$5.81$10.23$18.03$31.762008-07-022026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$13.49$13.49512,400
2025-12-30$13.48$13.48613,300
2025-12-29$13.80$13.80321,500
2025-12-26$13.88$13.88287,000
2025-12-24$13.84$13.84152,300
2025-12-23$13.81$13.81399,000
2025-12-22$13.98$13.98409,500
2025-12-19$14.07$14.071,290,400
2025-12-18$14.43$14.43393,600
2025-12-17$14.13$14.13435,200
2025-12-16$14.44$14.44599,700
2025-12-15$14.52$14.52478,300
2025-12-12$14.47$14.47315,500
2025-12-11$14.60$14.60356,700
2025-12-10$14.41$14.41554,800
2025-12-09$14.23$14.23443,700
2025-12-08$14.50$14.50441,300
2025-12-05$14.72$14.72333,100
2025-12-04$14.68$14.68285,200
2025-12-03$14.90$14.90420,300
2025-12-02$14.43$14.43492,000
2025-12-01$14.46$14.46393,400
2025-11-28$14.45$14.45225,400
2025-11-26$14.38$14.38300,600
2025-11-25$14.25$14.25470,300
2025-11-24$13.88$13.88845,200
2025-11-21$13.64$13.64525,800
2025-11-20$13.28$13.28512,600
2025-11-19$14.00$14.00722,400
2025-11-18$14.43$14.43535,900
2025-11-17$14.50$14.50715,200
2025-11-14$14.55$14.55502,900
2025-11-13$14.53$14.53751,200
2025-11-12$14.26$14.26819,800
2025-11-11$14.05$14.05655,400
2025-11-10$14.06$14.061,050,200
2025-11-07$13.98$13.982,526,000
2025-11-06$14.49$14.491,153,400
2025-11-05$17.26$17.26521,000
2025-11-04$16.41$16.41339,600
2025-11-03$16.81$16.81402,400
2025-10-31$17.11$17.11335,300
2025-10-30$17.13$17.13220,800
2025-10-29$17.17$17.17280,400
2025-10-28$17.40$17.40321,300
2025-10-27$17.59$17.59291,200
2025-10-24$18.11$18.11309,200
2025-10-23$17.87$17.87409,500
2025-10-22$17.22$17.22392,800
2025-10-21$17.16$17.16556,400
2025-10-20$17.03$17.03466,900
2025-10-17$16.76$16.76457,900
2025-10-16$16.77$16.77564,700
2025-10-15$16.34$16.34436,600
2025-10-14$15.74$15.74271,200
2025-10-13$15.56$15.56294,900
2025-10-10$15.27$15.27364,300
2025-10-09$15.32$15.32647,200
2025-10-08$15.44$15.44464,600
2025-10-07$15.57$15.57291,500
2025-10-06$15.79$15.79292,000
2025-10-03$15.77$15.77466,200
2025-10-02$15.87$15.87347,900
2025-10-01$15.84$15.84371,500
2025-09-30$15.42$15.42325,000
2025-09-29$15.35$15.35497,900
2025-09-26$15.32$15.32479,200
2025-09-25$15.24$15.24435,600
2025-09-24$15.28$15.28388,100
2025-09-23$15.06$15.06387,300
2025-09-22$14.95$14.95396,000
2025-09-19$14.69$14.691,136,500
2025-09-18$15.14$15.14500,300
2025-09-17$14.60$14.60634,300
2025-09-16$14.62$14.62665,400
2025-09-15$14.55$14.55397,100
2025-09-12$14.36$14.36258,800
2025-09-11$14.53$14.53369,300
2025-09-10$14.59$14.59360,600
2025-09-09$14.38$14.38508,400
2025-09-08$14.58$14.58437,500
2025-09-05$14.42$14.42325,600
2025-09-04$14.31$14.31487,500
2025-09-03$14.10$14.10564,300
2025-09-02$14.34$14.34438,900
2025-08-29$14.21$14.21210,500
2025-08-28$14.41$14.41295,700
2025-08-27$14.57$14.57318,500
2025-08-26$14.52$14.52305,600
2025-08-25$14.49$14.49240,600
2025-08-22$14.73$14.73328,900
2025-08-21$14.19$14.19315,300
2025-08-20$14.34$14.34410,700
2025-08-19$14.42$14.42337,800
2025-08-18$14.25$14.25452,200
2025-08-15$14.18$14.18377,300
2025-08-14$14.49$14.49480,500
2025-08-13$14.62$14.62481,100
2025-08-12$14.30$14.30581,600
2025-08-11$13.89$13.89559,200
2025-08-08$14.19$14.19450,300
2025-08-07$14.65$14.65871,000
2025-08-06$13.62$13.62354,800
2025-08-05$13.63$13.63295,000
2025-08-04$13.33$13.33338,300
2025-08-01$12.79$12.79565,900
2025-07-31$13.45$13.45485,600
2025-07-30$13.64$13.64453,000
2025-07-29$13.67$13.67620,600
2025-07-28$13.72$13.72313,800
2025-07-25$13.88$13.88320,400
2025-07-24$13.91$13.91307,600
2025-07-23$13.85$13.85359,900
2025-07-22$13.67$13.67350,500
2025-07-21$13.55$13.55316,100
2025-07-18$13.54$13.54481,800
2025-07-17$13.65$13.65421,500
2025-07-16$13.45$13.45441,900
2025-07-15$13.00$13.00318,000
2025-07-14$13.12$13.12262,200
2025-07-11$13.16$13.16327,800
2025-07-10$13.38$13.38304,100
2025-07-09$13.27$13.27306,400
2025-07-08$13.06$13.06667,000
2025-07-07$12.88$12.88299,500
2025-07-03$13.20$13.20427,100
2025-07-02$12.88$12.88325,200
2025-07-01$12.72$12.72346,900
2025-06-30$12.78$12.78653,800
2025-06-27$12.62$12.621,075,900
2025-06-26$12.41$12.41376,300
2025-06-25$12.13$12.13297,600
2025-06-24$12.27$12.27399,200
2025-06-23$12.19$12.19330,900
2025-06-20$12.02$12.02917,800
2025-06-18$12.18$12.18321,800
2025-06-17$12.21$12.21310,400
2025-06-16$12.43$12.43375,100
2025-06-13$12.36$12.36354,200
2025-06-12$12.57$12.57373,600
2025-06-11$12.68$12.68263,300
2025-06-10$12.82$12.82377,600
2025-06-09$12.72$12.72330,000
2025-06-06$12.63$12.63292,800
2025-06-05$12.46$12.46353,000
2025-06-04$12.53$12.53332,000
2025-06-03$12.56$12.56446,800
2025-06-02$12.40$12.40554,600
2025-05-30$12.61$12.61652,200
2025-05-29$12.38$12.38404,000
2025-05-28$12.38$12.38456,500
2025-05-27$12.63$12.63412,000
2025-05-23$12.56$12.56423,200
2025-05-22$12.45$12.45541,500
2025-05-21$12.64$12.64524,200
2025-05-20$12.91$12.91534,000
2025-05-19$13.08$13.08443,300
2025-05-16$13.16$13.16676,700
2025-05-15$12.28$12.28685,400
2025-05-14$12.31$12.31674,400
2025-05-13$12.26$12.26657,500
2025-05-12$12.24$12.24994,200
2025-05-09$11.37$11.37985,100
2025-05-08$12.25$12.252,527,700
2025-05-07$15.04$15.04492,200
2025-05-06$14.88$14.88495,400
2025-05-05$15.58$15.58304,700
2025-05-02$15.80$15.80218,000
2025-05-01$15.58$15.58336,000
2025-04-30$15.45$15.45368,900
2025-04-29$15.40$15.40435,200
2025-04-28$15.01$15.01622,200
2025-04-25$15.17$15.17339,300
2025-04-24$15.18$15.18710,100
2025-04-23$14.76$14.76593,600
2025-04-22$14.88$14.88356,800
2025-04-21$14.63$14.63242,300
2025-04-17$14.83$14.83388,100
2025-04-16$14.87$14.87367,500
2025-04-15$15.08$15.08389,300
2025-04-14$14.88$14.88257,600
2025-04-11$14.84$14.84417,000
2025-04-10$14.60$14.60355,900
2025-04-09$15.19$15.19558,000
2025-04-08$14.31$14.31596,800
2025-04-07$14.46$14.46554,400
2025-04-04$14.41$14.41617,800
2025-04-03$14.95$14.95510,400
2025-04-02$15.97$15.97498,200
2025-04-01$15.85$15.85379,100
2025-03-31$15.89$15.89430,000
2025-03-28$15.95$15.95272,100
2025-03-27$16.18$16.18331,300
2025-03-26$16.54$16.54314,600
2025-03-25$16.60$16.60362,900
2025-03-24$16.83$16.83466,800
2025-03-21$16.11$16.111,028,200
2025-03-20$16.31$16.31349,000
2025-03-19$16.66$16.66442,300
2025-03-18$16.16$16.16581,400
2025-03-17$15.80$15.80487,700
2025-03-14$16.38$16.38557,200
2025-03-13$15.99$15.99327,300
2025-03-12$16.24$16.24638,000
2025-03-11$16.54$16.54618,000
2025-03-10$16.22$16.22433,800
2025-03-07$16.37$16.37335,800
2025-03-06$15.67$15.67390,600
2025-03-05$15.61$15.61396,000
2025-03-04$15.22$15.22439,200
2025-03-03$15.12$15.12492,900
2025-02-28$14.96$14.96628,300
2025-02-27$15.05$15.05521,900
2025-02-26$14.68$14.68271,400
2025-02-25$14.68$14.68306,300
2025-02-24$14.78$14.78271,500
2025-02-21$14.65$14.65281,400
2025-02-20$15.48$15.48254,300
2025-02-19$15.63$15.63168,700
2025-02-18$15.55$15.55359,700
2025-02-14$15.29$15.29346,600
2025-02-13$15.10$15.10205,800
2025-02-12$14.90$14.90256,100
2025-02-11$14.86$14.86155,400
2025-02-10$14.72$14.72150,900
2025-02-07$14.53$14.53150,200
2025-02-06$14.70$14.70170,300
2025-02-05$14.69$14.69190,700
2025-02-04$14.58$14.58215,700
2025-02-03$14.14$14.14380,500
2025-01-31$14.34$14.34331,000
2025-01-30$14.56$14.56249,100
2025-01-29$14.42$14.42355,000
2025-01-28$14.33$14.33217,100
2025-01-27$14.26$14.26353,600
2025-01-24$14.40$14.40228,600
2025-01-23$14.61$14.61208,500
2025-01-22$14.73$14.73322,400
2025-01-21$15.11$15.11226,900
2025-01-17$14.77$14.77366,600
2025-01-16$14.35$14.35251,600
2025-01-15$14.37$14.37240,100
2025-01-14$14.10$14.10216,900
2025-01-13$14.06$14.06297,300
2025-01-10$14.14$14.14292,100
2025-01-08$14.79$14.79304,000
2025-01-07$14.89$14.89261,700
2025-01-06$15.34$15.34248,400
2025-01-03$15.06$15.06211,200
2025-01-02$14.89$14.89299,300