NASDAQ:CSPI | Historical Stock Price | CSP INC /MA/

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
1982-01-29 to 2026-09-04
Data captured

Stock Price Chart

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

$1.18$2.32$4.56$8.97$17.61$34.601982-01-292026-08-27

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$1.83$1.833,200
2009-12-30$1.91$1.910
2009-12-29$1.91$1.9180,600
2009-12-28$1.82$1.8222,400
2009-12-24$1.85$1.842,600
2009-12-23$1.85$1.8420,000
2009-12-22$1.83$1.82800
2009-12-21$1.88$1.889,400
2009-12-18$1.86$1.862,000
2009-12-17$1.85$1.858,400
2009-12-16$1.84$1.8394,800
2009-12-15$1.93$1.9236,800
2009-12-14$1.97$1.97107,600
2009-12-11$1.80$1.8010,200
2009-12-10$1.75$1.7523,400
2009-12-09$1.82$1.821,200
2009-12-08$1.83$1.823,200
2009-12-07$1.83$1.827,000
2009-12-04$1.80$1.801,000
2009-12-03$1.81$1.8126,600
2009-12-02$1.76$1.765,200
2009-12-01$1.79$1.789,800
2009-11-30$1.73$1.732,600
2009-11-27$1.74$1.743,000
2009-11-25$1.74$1.740
2009-11-24$1.74$1.740
2009-11-23$1.74$1.745,200
2009-11-20$1.74$1.740
2009-11-19$1.74$1.7413,000
2009-11-18$1.79$1.78600
2009-11-17$1.80$1.8019,800
2009-11-16$1.81$1.819,600
2009-11-13$1.82$1.823,600
2009-11-12$1.80$1.801,600
2009-11-11$1.80$1.805,600
2009-11-10$1.79$1.795,200
2009-11-09$1.77$1.7618,200
2009-11-06$1.78$1.7812,600
2009-11-05$1.80$1.808,400
2009-11-04$1.74$1.7411,000
2009-11-03$1.77$1.770
2009-11-02$1.77$1.772,000
2009-10-30$1.84$1.84600
2009-10-29$1.76$1.7619,400
2009-10-28$1.72$1.719,200
2009-10-27$1.80$1.8015,600
2009-10-26$1.83$1.824,600
2009-10-23$1.87$1.875,400
2009-10-22$1.83$1.824,600
2009-10-21$1.82$1.8210,000
2009-10-20$1.83$1.8315,000
2009-10-19$1.85$1.8510,400
2009-10-16$1.83$1.831,800
2009-10-15$1.84$1.847,200
2009-10-14$1.82$1.820
2009-10-13$1.82$1.820
2009-10-12$1.82$1.820
2009-10-09$1.82$1.820
2009-10-08$1.82$1.821,800
2009-10-07$1.85$1.854,000
2009-10-06$1.83$1.827,400
2009-10-05$1.85$1.855,600
2009-10-02$1.81$1.81200
2009-10-01$1.80$1.801,400
2009-09-30$1.82$1.82400
2009-09-29$1.85$1.854,200
2009-09-28$1.86$1.8621,600
2009-09-25$1.80$1.803,800
2009-09-24$1.85$1.855,800
2009-09-23$1.83$1.8312,800
2009-09-22$1.82$1.825,800
2009-09-21$1.84$1.839,400
2009-09-18$1.86$1.860
2009-09-17$1.86$1.860
2009-09-16$1.86$1.865,000
2009-09-15$1.86$1.8610,200
2009-09-14$1.85$1.845,200
2009-09-11$1.84$1.8315,200
2009-09-10$1.81$1.815,600
2009-09-09$1.81$1.8113,600
2009-09-08$1.81$1.8110,000
2009-09-04$1.80$1.801,600
2009-09-03$1.78$1.78600
2009-09-02$1.79$1.788,400
2009-09-01$1.78$1.785,400
2009-08-31$1.80$1.80400
2009-08-28$1.76$1.764,000
2009-08-27$1.78$1.77600
2009-08-26$1.81$1.810
2009-08-25$1.81$1.819,200
2009-08-24$1.78$1.7728,600
2009-08-21$1.78$1.77200
2009-08-20$1.80$1.800
2009-08-19$1.80$1.800
2009-08-18$1.80$1.804,400
2009-08-17$1.76$1.764,200
2009-08-14$1.79$1.7810,800
2009-08-13$1.83$1.8219,800
2009-08-12$1.80$1.80800
2009-08-11$1.88$1.8790,800
2009-08-10$2.13$2.1216,200
2009-08-07$1.96$1.963,400
2009-08-06$1.93$1.923,400
2009-08-05$1.93$1.930
2009-08-04$1.93$1.93400
2009-08-03$1.98$1.9821,600
2009-07-31$1.89$1.8816,200
2009-07-30$1.93$1.922,200
2009-07-29$1.93$1.930
2009-07-28$1.93$1.93800
2009-07-27$1.94$1.933,600
2009-07-24$1.93$1.922,800
2009-07-23$1.93$1.9249,800
2009-07-22$1.83$1.825,200
2009-07-21$1.88$1.8815,400
2009-07-20$1.89$1.8924,000
2009-07-17$1.80$1.804,400
2009-07-16$1.81$1.812,600
2009-07-15$1.83$1.820
2009-07-14$1.83$1.827,200
2009-07-13$1.89$1.89200
2009-07-10$1.88$1.8816,800
2009-07-09$1.81$1.8113,800
2009-07-08$1.85$1.850
2009-07-07$1.85$1.850
2009-07-06$1.85$1.850
2009-07-02$1.85$1.85400
2009-07-01$1.94$1.9348,800
2009-06-30$1.78$1.773,800
2009-06-29$1.84$1.83800
2009-06-26$1.80$1.804,000
2009-06-25$1.75$1.75400
2009-06-24$1.73$1.726,400
2009-06-23$1.73$1.724,400
2009-06-22$1.76$1.763,000
2009-06-19$1.80$1.8018,800
2009-06-18$1.73$1.738,400
2009-06-17$1.76$1.761,400
2009-06-16$1.76$1.764,400
2009-06-15$1.78$1.7711,400
2009-06-12$1.80$1.801,400
2009-06-11$1.80$1.803,200
2009-06-10$1.83$1.820
2009-06-09$1.83$1.8298,400
2009-06-08$1.80$1.8013,200
2009-06-05$1.73$1.733,400
2009-06-04$1.75$1.757,200
2009-06-03$1.71$1.715,800
2009-06-02$1.71$1.7127,400
2009-06-01$1.65$1.6519,800
2009-05-29$1.60$1.607,800
2009-05-28$1.68$1.679,400
2009-05-27$1.57$1.569,600
2009-05-26$1.55$1.5516,800
2009-05-22$1.63$1.63800
2009-05-21$1.70$1.700
2009-05-20$1.70$1.705,400
2009-05-19$1.63$1.6314,800
2009-05-18$1.55$1.554,800
2009-05-15$1.55$1.549,200
2009-05-14$1.53$1.5310,200
2009-05-13$1.56$1.568,000
2009-05-12$1.73$1.720
2009-05-11$1.73$1.7219,800
2009-05-08$1.58$1.5815,000
2009-05-07$1.50$1.5017,800
2009-05-06$1.55$1.5452,800
2009-05-05$1.53$1.534,600
2009-05-04$1.55$1.5427,400
2009-05-01$1.49$1.4820,800
2009-04-30$1.50$1.5029,000
2009-04-29$1.50$1.5016,800
2009-04-28$1.51$1.5134,400
2009-04-27$1.44$1.437,000
2009-04-24$1.41$1.4141,000
2009-04-23$1.43$1.428,400
2009-04-22$1.41$1.4120,000
2009-04-21$1.40$1.404,200
2009-04-20$1.34$1.3417,200
2009-04-17$1.40$1.4040,000
2009-04-16$1.38$1.3729,200
2009-04-15$1.40$1.401,000
2009-04-14$1.28$1.2732,000
2009-04-13$1.33$1.338,000
2009-04-09$1.34$1.3338,200
2009-04-08$1.38$1.3711,400
2009-04-07$1.36$1.3619,800
2009-04-06$1.35$1.3512,000
2009-04-03$1.38$1.3749,600
2009-04-02$1.38$1.3740,600
2009-04-01$1.43$1.4267,000
2009-03-31$1.43$1.4240,400
2009-03-30$1.47$1.4720,400
2009-03-27$1.56$1.555,200
2009-03-26$1.57$1.5630,400
2009-03-25$1.60$1.6023,600
2009-03-24$1.55$1.5510,000
2009-03-23$1.51$1.518,400
2009-03-20$1.49$1.4819,200
2009-03-19$1.55$1.547,200
2009-03-18$1.50$1.505,600
2009-03-17$1.51$1.500
2009-03-16$1.51$1.503,800
2009-03-13$1.58$1.587,000
2009-03-12$1.50$1.506,800
2009-03-11$1.42$1.4216,000
2009-03-10$1.41$1.4122,200
2009-03-09$1.29$1.2912,600
2009-03-06$1.26$1.2512,800
2009-03-05$1.32$1.327,000
2009-03-04$1.35$1.3512,400
2009-03-03$1.36$1.3612,200
2009-03-02$1.37$1.3710,600
2009-02-27$1.40$1.402,400
2009-02-26$1.42$1.422,200
2009-02-25$1.42$1.429,200
2009-02-24$1.43$1.428,400
2009-02-23$1.36$1.365,400
2009-02-20$1.46$1.46166,200
2009-02-19$1.56$1.5613,000
2009-02-18$1.54$1.5414,400
2009-02-17$1.54$1.5420,000
2009-02-13$1.56$1.5612,800
2009-02-12$1.51$1.5143,800
2009-02-11$1.56$1.5533,000
2009-02-10$1.55$1.5554,800
2009-02-09$1.59$1.5935,400
2009-02-06$1.60$1.60127,400
2009-02-05$1.71$1.7128,400
2009-02-04$1.60$1.60102,000
2009-02-03$1.73$1.72148,400
2009-02-02$1.40$1.4092,000
2009-01-30$1.60$1.6010,400
2009-01-29$1.62$1.6117,200
2009-01-28$1.69$1.6920,800
2009-01-27$1.65$1.6426,000
2009-01-26$1.73$1.73147,400
2009-01-23$1.59$1.59274,000
2009-01-22$1.33$1.3215,600
2009-01-21$1.38$1.3856,600
2009-01-20$1.41$1.419,400
2009-01-16$1.42$1.4211,800
2009-01-15$1.43$1.4215,800
2009-01-14$1.41$1.4112,400
2009-01-13$1.48$1.4712,600
2009-01-12$1.50$1.5057,200
2009-01-09$1.61$1.619,200
2009-01-08$1.75$1.7519,800
2009-01-07$1.61$1.618,200
2009-01-06$1.77$1.7638,400
2009-01-05$1.68$1.6722,800
2009-01-02$1.56$1.561,200