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 — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2011-12-30$2.58$2.58327,600——
2011-12-29$2.73$2.731,383,600——
2011-12-28$2.68$2.68317,100——
2011-12-27$2.57$2.5788,300——
2011-12-23$2.59$2.59243,500——
2011-12-22$2.52$2.52250,300——
2011-12-21$2.47$2.47178,100——
2011-12-20$2.72$2.72270,700——
2011-12-19$2.64$2.64134,500——
2011-12-16$2.63$2.63696,800——
2011-12-15$2.79$2.79229,200——
2011-12-14$2.80$2.80190,100——
2011-12-13$2.71$2.71159,100——
2011-12-12$2.89$2.89156,100——
2011-12-09$2.85$2.85180,400——
2011-12-08$2.52$2.52112,200——
2011-12-07$2.69$2.6990,600——
2011-12-06$2.74$2.74131,400——
2011-12-05$2.79$2.79150,400——
2011-12-02$2.63$2.6375,700——
2011-12-01$2.63$2.63344,600——
2011-11-30$2.88$2.88573,500——
2011-11-29$2.46$2.46159,900——
2011-11-28$2.54$2.54243,400——
2011-11-25$2.27$2.27183,100——
2011-11-23$2.27$2.27247,700——
2011-11-22$2.39$2.39149,500——
2011-11-21$2.50$2.50148,700——
2011-11-18$2.50$2.50259,100——
2011-11-17$2.52$2.52102,500——
2011-11-16$2.50$2.50148,400——
2011-11-15$2.53$2.53141,500——
2011-11-14$2.48$2.48351,400——
2011-11-11$2.62$2.62199,800——
2011-11-10$2.63$2.63324,400——
2011-11-09$2.67$2.67532,400——
2011-11-08$2.97$2.97209,900——
2011-11-07$3.00$3.00156,400——
2011-11-04$3.00$3.00164,500——
2011-11-03$3.17$3.17160,700——
2011-11-02$3.15$3.15141,400——
2011-11-01$3.01$3.01301,000——
2011-10-31$3.07$3.07138,700——
2011-10-28$3.27$3.27218,400——
2011-10-27$3.44$3.44500,800——
2011-10-26$3.08$3.08172,800——
2011-10-25$3.01$3.01229,300——
2011-10-24$3.16$3.16173,400——
2011-10-21$2.99$2.99160,200——
2011-10-20$2.93$2.93126,300——
2011-10-19$2.93$2.93116,500——
2011-10-18$3.04$3.04245,800——
2011-10-17$2.89$2.89195,900——
2011-10-14$3.08$3.08178,400——
2011-10-13$3.06$3.06259,200——
2011-10-12$2.91$2.91302,400——
2011-10-11$2.91$2.91195,400——
2011-10-10$3.00$3.00292,100——
2011-10-07$2.85$2.85326,100——
2011-10-06$2.93$2.93224,300——
2011-10-05$3.02$3.02173,400——
2011-10-04$2.94$2.94294,200——
2011-10-03$2.78$2.78371,300——
2011-09-30$3.00$3.00492,500——
2011-09-29$3.10$3.101,419,400——
2011-09-28$2.99$2.99637,100——
2011-09-27$2.90$2.90293,800——
2011-09-26$3.09$3.09273,600——
2011-09-23$2.86$2.86334,900——
2011-09-22$2.62$2.62238,500——
2011-09-21$2.65$2.65239,900——
2011-09-20$2.60$2.60176,800——
2011-09-19$2.54$2.54166,500——
2011-09-16$2.61$2.61189,100——
2011-09-15$2.53$2.53207,300——
2011-09-14$2.68$2.68194,400——
2011-09-13$2.59$2.59120,900——
2011-09-12$2.50$2.50159,000——
2011-09-09$2.49$2.49177,000——
2011-09-08$2.50$2.50128,800——
2011-09-07$2.51$2.51233,800——
2011-09-06$2.42$2.42111,200——
2011-09-02$2.48$2.48259,300——
2011-09-01$2.51$2.51244,200——
2011-08-31$2.56$2.56227,800——
2011-08-30$2.85$2.85122,900——
2011-08-29$2.76$2.76238,200——
2011-08-26$2.58$2.5892,000——
2011-08-25$2.52$2.52178,400——
2011-08-24$2.53$2.53182,900——
2011-08-23$2.68$2.68386,500——
2011-08-22$2.43$2.43254,400——
2011-08-19$2.15$2.15180,300——
2011-08-18$2.24$2.24237,900——
2011-08-17$2.25$2.25163,300——
2011-08-16$2.29$2.29164,800——
2011-08-15$2.33$2.33232,100——
2011-08-12$2.25$2.25396,100——
2011-08-11$2.38$2.38322,600——
2011-08-10$2.26$2.26228,700——
2011-08-09$2.50$2.50528,400——
2011-08-08$2.24$2.24634,300——
2011-08-05$2.78$2.78466,600——
2011-08-04$2.98$2.98785,900——
2011-08-03$3.00$3.00361,500——
2011-08-02$2.84$2.84343,600——
2011-08-01$2.90$2.90273,900——
2011-07-29$3.07$3.07255,700——
2011-07-28$2.94$2.94257,700——
2011-07-27$2.95$2.95343,100——
2011-07-26$3.00$3.0093,400——
2011-07-25$3.00$3.0095,700——
2011-07-22$3.09$3.0972,900——
2011-07-21$3.21$3.21153,800——
2011-07-20$3.20$3.20307,600——
2011-07-19$3.12$3.12155,000——
2011-07-18$3.11$3.11234,000——
2011-07-15$3.02$3.02127,400——
2011-07-14$3.06$3.06137,200——
2011-07-13$3.16$3.16139,000——
2011-07-12$3.00$3.00136,000——
2011-07-11$2.95$2.95242,000——
2011-07-08$3.18$3.18113,800——
2011-07-07$3.30$3.30197,400——
2011-07-06$3.14$3.14224,000——
2011-07-05$3.25$3.25107,100——
2011-07-01$3.30$3.30202,800——
2011-06-30$3.27$3.27241,000——
2011-06-29$3.30$3.301,696,100——
2011-06-28$3.38$3.38925,700——
2011-06-27$3.07$3.07168,100——
2011-06-24$3.06$3.061,743,700——
2011-06-23$2.86$2.86152,300——
2011-06-22$2.87$2.87143,700——
2011-06-21$2.86$2.86222,600——
2011-06-20$2.79$2.79192,600——
2011-06-17$2.89$2.89965,300——
2011-06-16$2.87$2.87164,100——
2011-06-15$2.81$2.81232,100——
2011-06-14$2.76$2.76283,500——
2011-06-13$2.59$2.59164,300——
2011-06-10$2.51$2.51467,000——
2011-06-09$2.40$2.40136,700——
2011-06-08$2.46$2.46169,900——
2011-06-07$2.39$2.39167,100——
2011-06-06$2.43$2.43229,400——
2011-06-03$2.49$2.49298,200——
2011-06-02$2.65$2.65140,500——
2011-06-01$2.58$2.58194,300——
2011-05-31$2.76$2.76370,400——
2011-05-27$2.73$2.7378,700——
2011-05-26$2.72$2.7295,900——
2011-05-25$2.66$2.66115,500——
2011-05-24$2.62$2.62263,000——
2011-05-23$2.75$2.75273,600——
2011-05-20$2.99$2.99163,400——
2011-05-19$2.98$2.98249,700——
2011-05-18$2.98$2.98293,200——
2011-05-17$2.88$2.88199,700——
2011-05-16$2.79$2.79131,000——
2011-05-13$2.91$2.91156,200——
2011-05-12$3.05$3.05340,000——
2011-05-11$2.91$2.91221,700——
2011-05-10$3.00$3.00383,800——
2011-05-09$2.77$2.77408,600——
2011-05-06$2.71$2.71342,700——
2011-05-05$2.88$2.88163,000——
2011-05-04$2.91$2.91202,000——
2011-05-03$2.92$2.92171,800——
2011-05-02$2.94$2.94341,200——
2011-04-29$3.09$3.09196,000——
2011-04-28$3.19$3.19126,500——
2011-04-27$3.18$3.18223,900——
2011-04-26$3.19$3.19222,900——
2011-04-25$3.12$3.12132,900——
2011-04-21$3.17$3.17216,900——
2011-04-20$3.21$3.21984,500——
2011-04-19$3.05$3.05378,900——
2011-04-18$2.85$2.85788,400——
2011-04-15$3.02$3.02312,100——
2011-04-14$3.13$3.13115,400——
2011-04-13$3.09$3.09261,300——
2011-04-12$3.25$3.25300,500——
2011-04-11$3.11$3.11141,900——
2011-04-08$3.04$3.04230,800——
2011-04-07$3.13$3.13144,100——
2011-04-06$3.20$3.20269,300——
2011-04-05$3.20$3.20188,700——
2011-04-04$3.19$3.19212,200——
2011-04-01$3.18$3.18306,300——
2011-03-31$3.18$3.18430,500——
2011-03-30$3.37$3.371,233,400——
2011-03-29$3.40$3.40619,600——
2011-03-28$3.23$3.23155,300——
2011-03-25$3.30$3.30196,300——
2011-03-24$3.28$3.28209,200——
2011-03-23$3.27$3.27201,000——
2011-03-22$3.40$3.40437,600——
2011-03-21$3.18$3.18143,400——
2011-03-18$3.11$3.11226,400——
2011-03-17$3.05$3.05235,600——
2011-03-16$3.09$3.09304,200——
2011-03-15$3.04$3.04250,200——
2011-03-14$3.00$3.00223,300——
2011-03-11$3.10$3.10435,100——
2011-03-10$3.00$3.00383,100——
2011-03-09$3.13$3.13183,400——
2011-03-08$3.16$3.16365,500——
2011-03-07$3.17$3.17532,600——
2011-03-04$3.30$3.301,078,500——
2011-03-03$3.44$3.44172,200——
2011-03-02$3.36$3.36247,400——
2011-03-01$3.40$3.40283,000——
2011-02-28$3.39$3.39478,000——
2011-02-25$3.31$3.31181,700——
2011-02-24$3.30$3.30201,300——
2011-02-23$3.27$3.27211,100——
2011-02-22$3.32$3.32280,300——
2011-02-18$3.41$3.41170,500——
2011-02-17$3.34$3.34204,000——
2011-02-16$3.36$3.36581,200——
2011-02-15$3.42$3.42133,200——
2011-02-14$3.45$3.45117,100——
2011-02-11$3.42$3.42426,000——
2011-02-10$3.44$3.44348,100——
2011-02-09$3.54$3.54191,500——
2011-02-08$3.68$3.68216,000——
2011-02-07$3.66$3.66263,400——
2011-02-04$3.66$3.66160,200——
2011-02-03$3.65$3.65241,600——
2011-02-02$3.54$3.54404,700——
2011-02-01$3.54$3.54335,700——
2011-01-31$3.42$3.42324,300——
2011-01-28$3.38$3.38756,900——
2011-01-27$3.58$3.58406,700——
2011-01-26$3.52$3.52227,200——
2011-01-25$3.49$3.49479,900——
2011-01-24$3.57$3.571,035,900——
2011-01-21$3.60$3.60214,100——
2011-01-20$3.65$3.65285,500——
2011-01-19$3.65$3.65537,100——
2011-01-18$3.89$3.89396,700——
2011-01-14$4.10$4.10366,400——
2011-01-13$4.07$4.07419,900——
2011-01-12$4.13$4.13325,900——
2011-01-11$4.23$4.23529,200——
2011-01-10$3.90$3.90225,900——
2011-01-07$3.91$3.91324,900——
2011-01-06$3.92$3.92431,700——
2011-01-05$4.02$4.02368,500——
2011-01-04$3.93$3.93896,400——
2011-01-03$4.15$4.152,316,500——