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 — 2009

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2009-12-31$6.88$6.88262,100
2009-12-30$6.73$6.73294,500
2009-12-29$6.86$6.86269,300
2009-12-28$7.03$7.03373,900
2009-12-24$7.04$7.04359,100
2009-12-23$7.03$7.03369,200
2009-12-22$7.05$7.05177,100
2009-12-21$7.10$7.10379,000
2009-12-18$6.93$6.93828,800
2009-12-17$6.80$6.80301,800
2009-12-16$7.00$7.00379,900
2009-12-15$6.87$6.87757,300
2009-12-14$6.70$6.70203,800
2009-12-11$6.73$6.73626,000
2009-12-10$6.66$6.66612,500
2009-12-09$6.50$6.50236,900
2009-12-08$6.51$6.51281,100
2009-12-07$6.41$6.41459,100
2009-12-04$6.58$6.58749,700
2009-12-03$6.35$6.352,078,700
2009-12-02$5.70$5.70126,600
2009-12-01$5.61$5.61396,400
2009-11-30$5.59$5.59412,300
2009-11-27$5.81$5.81407,700
2009-11-25$5.62$5.62155,800
2009-11-24$5.79$5.79212,500
2009-11-23$5.76$5.76201,800
2009-11-20$5.51$5.51250,900
2009-11-19$5.45$5.45283,000
2009-11-18$5.51$5.51174,000
2009-11-17$5.55$5.55161,500
2009-11-16$5.57$5.57362,700
2009-11-13$5.70$5.70296,100
2009-11-12$5.69$5.69192,100
2009-11-11$5.68$5.68284,700
2009-11-10$5.52$5.52269,200
2009-11-09$5.70$5.70315,000
2009-11-06$5.64$5.64498,500
2009-11-05$5.97$5.97294,000
2009-11-04$5.71$5.71269,800
2009-11-03$5.78$5.78115,500
2009-11-02$5.76$5.76293,600
2009-10-30$5.58$5.58288,500
2009-10-29$5.60$5.60171,100
2009-10-28$5.52$5.52208,300
2009-10-27$5.55$5.55168,100
2009-10-26$5.45$5.45272,800
2009-10-23$5.57$5.57144,900
2009-10-22$5.72$5.72157,500
2009-10-21$5.77$5.77344,700
2009-10-20$5.99$5.99183,800
2009-10-19$6.09$6.09292,700
2009-10-16$6.08$6.08324,300
2009-10-15$6.03$6.03209,500
2009-10-14$6.06$6.06537,400
2009-10-13$6.18$6.18542,600
2009-10-12$6.07$6.07480,100
2009-10-09$6.07$6.07670,000
2009-10-08$5.81$5.81223,700
2009-10-07$5.90$5.90444,900
2009-10-06$5.99$5.99414,400
2009-10-05$5.91$5.91310,800
2009-10-02$5.50$5.50162,500
2009-10-01$5.65$5.65350,200
2009-09-30$5.84$5.84228,700
2009-09-29$5.97$5.97213,500
2009-09-28$5.95$5.95376,200
2009-09-25$5.72$5.72166,800
2009-09-24$5.71$5.71279,200
2009-09-23$5.74$5.74378,400
2009-09-22$5.49$5.49267,000
2009-09-21$5.48$5.48244,800
2009-09-18$5.71$5.71323,100
2009-09-17$5.85$5.85335,900
2009-09-16$5.90$5.90379,300
2009-09-15$5.92$5.92343,500
2009-09-14$5.65$5.65172,200
2009-09-11$5.65$5.65425,300
2009-09-10$5.74$5.74782,500
2009-09-09$5.20$5.20289,400
2009-09-08$5.18$5.18301,400
2009-09-04$5.25$5.25408,600
2009-09-03$5.18$5.18623,000
2009-09-02$5.03$5.03241,000
2009-09-01$5.07$5.07475,600
2009-08-31$5.25$5.25558,700
2009-08-28$5.21$5.21386,000
2009-08-27$5.24$5.24219,200
2009-08-26$5.27$5.27522,200
2009-08-25$5.31$5.31478,300
2009-08-24$5.38$5.38380,900
2009-08-21$5.46$5.46818,700
2009-08-20$5.25$5.25628,300
2009-08-19$5.01$5.01570,500
2009-08-18$5.01$5.01476,700
2009-08-17$4.98$4.98791,500
2009-08-14$5.27$5.27439,000
2009-08-13$5.37$5.37330,800
2009-08-12$5.52$5.52387,000
2009-08-11$5.50$5.50488,500
2009-08-10$5.61$5.61716,700
2009-08-07$5.73$5.731,872,700
2009-08-06$6.93$6.93175,000
2009-08-05$7.22$7.22174,000
2009-08-04$7.23$7.23269,500
2009-08-03$7.05$7.05312,200
2009-07-31$6.99$6.99169,800
2009-07-30$6.98$6.98238,800
2009-07-29$6.75$6.75179,500
2009-07-28$6.92$6.92153,300
2009-07-27$7.05$7.05275,600
2009-07-24$6.81$6.81306,600
2009-07-23$6.70$6.70232,300
2009-07-22$6.72$6.72460,000
2009-07-21$6.60$6.60342,700
2009-07-20$6.72$6.72190,200
2009-07-17$6.90$6.90409,200
2009-07-16$7.05$7.05476,500
2009-07-15$7.12$7.12182,100
2009-07-14$7.02$7.02231,200
2009-07-13$6.74$6.74284,000
2009-07-10$6.67$6.67152,400
2009-07-09$6.65$6.65134,900
2009-07-08$6.52$6.52154,700
2009-07-07$6.51$6.51202,700
2009-07-06$6.73$6.73223,600
2009-07-02$6.59$6.59220,000
2009-07-01$7.13$7.13243,600
2009-06-30$7.08$7.08255,200
2009-06-29$7.09$7.09367,200
2009-06-26$7.36$7.363,673,100
2009-06-25$6.70$6.70362,800
2009-06-24$6.48$6.48185,100
2009-06-23$6.53$6.53194,300
2009-06-22$6.56$6.56237,400
2009-06-19$6.70$6.70242,500
2009-06-18$6.76$6.76176,300
2009-06-17$6.91$6.91259,700
2009-06-16$6.65$6.65288,800
2009-06-15$7.07$7.07198,200
2009-06-12$7.16$7.16186,900
2009-06-11$7.15$7.15318,100
2009-06-10$6.90$6.90364,900
2009-06-09$7.18$7.18198,300
2009-06-08$7.38$7.38292,600
2009-06-05$7.18$7.18389,500
2009-06-04$6.73$6.73499,700
2009-06-03$6.37$6.372,483,200
2009-06-02$6.84$6.84910,000
2009-06-01$7.62$7.62343,300
2009-05-29$7.98$7.98233,200
2009-05-28$7.94$7.94189,300
2009-05-27$7.94$7.94361,600
2009-05-26$7.87$7.87232,500
2009-05-22$7.72$7.72148,300
2009-05-21$7.60$7.60231,600
2009-05-20$7.90$7.90156,000
2009-05-19$7.72$7.72198,700
2009-05-18$8.02$8.02318,800
2009-05-15$7.79$7.79136,900
2009-05-14$7.75$7.75181,900
2009-05-13$7.59$7.59197,300
2009-05-12$7.80$7.80240,400
2009-05-11$8.12$8.12192,800
2009-05-08$8.20$8.20465,300
2009-05-07$8.33$8.33289,000
2009-05-06$8.18$8.18204,200
2009-05-05$8.08$8.08198,100
2009-05-04$8.27$8.27185,900
2009-05-01$8.08$8.08196,000
2009-04-30$7.88$7.88183,300
2009-04-29$7.95$7.95191,300
2009-04-28$7.98$7.9897,100
2009-04-27$8.07$8.07220,800
2009-04-24$8.53$8.53438,600
2009-04-23$7.96$7.96139,700
2009-04-22$7.93$7.93172,500
2009-04-21$7.90$7.90265,500
2009-04-20$7.81$7.81318,100
2009-04-17$8.55$8.55404,000
2009-04-16$8.00$8.00477,600
2009-04-15$7.08$7.08284,700
2009-04-14$6.77$6.77116,400
2009-04-13$6.99$6.99139,900
2009-04-09$7.15$7.15148,700
2009-04-08$6.55$6.5583,400
2009-04-07$6.72$6.7283,400
2009-04-06$7.06$7.0670,100
2009-04-03$7.31$7.31107,600
2009-04-02$7.56$7.56408,000
2009-04-01$7.55$7.55240,900
2009-03-31$7.60$7.60304,000
2009-03-30$7.47$7.47240,000
2009-03-27$7.25$7.25118,100
2009-03-26$7.34$7.34189,700
2009-03-25$7.04$7.04256,000
2009-03-24$6.41$6.4164,800
2009-03-23$6.50$6.50125,900
2009-03-20$6.32$6.32279,100
2009-03-19$6.46$6.4686,800
2009-03-18$6.40$6.40105,100
2009-03-17$6.40$6.4091,600
2009-03-16$6.36$6.36104,300
2009-03-13$6.38$6.38140,500
2009-03-12$6.15$6.15276,800
2009-03-11$5.70$5.70278,700
2009-03-10$4.93$4.93531,100
2009-03-09$4.68$4.68184,100
2009-03-06$4.72$4.72549,200
2009-03-05$4.99$4.99334,600
2009-03-04$5.59$5.59446,400
2009-03-03$5.99$5.99205,600
2009-03-02$6.02$6.02281,700
2009-02-27$6.31$6.31262,700
2009-02-26$6.71$6.71111,900
2009-02-25$6.75$6.75144,700
2009-02-24$6.81$6.81216,900
2009-02-23$6.42$6.42124,900
2009-02-20$6.95$6.95245,000
2009-02-19$6.73$6.73133,700
2009-02-18$6.31$6.31275,200
2009-02-17$6.45$6.45102,600
2009-02-13$6.42$6.42112,400
2009-02-12$6.37$6.37150,000
2009-02-11$6.36$6.3682,500
2009-02-10$6.35$6.35181,200
2009-02-09$6.34$6.34272,700
2009-02-06$6.35$6.35211,900
2009-02-05$6.35$6.35305,000
2009-02-04$6.39$6.39622,900
2009-02-03$6.12$6.12372,700
2009-02-02$6.38$6.38196,000
2009-01-30$6.25$6.25128,700
2009-01-29$6.30$6.30198,800
2009-01-28$6.87$6.8788,300
2009-01-27$6.87$6.8797,500
2009-01-26$6.79$6.7979,300
2009-01-23$6.76$6.76173,000
2009-01-22$6.88$6.8890,200
2009-01-21$6.92$6.92171,900
2009-01-20$6.71$6.71138,400
2009-01-16$6.80$6.80129,100
2009-01-15$6.85$6.85201,000
2009-01-14$6.84$6.84128,900
2009-01-13$6.92$6.92236,200
2009-01-12$7.15$7.1572,400
2009-01-09$7.43$7.43275,700
2009-01-08$7.86$7.8688,000
2009-01-07$8.16$8.16136,200
2009-01-06$8.66$8.66154,000
2009-01-05$8.00$8.00115,800
2009-01-02$7.95$7.95111,400