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 — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$4.09$4.091,600
2006-12-28$4.08$4.071,400
2006-12-27$4.07$4.072,800
2006-12-26$4.06$4.053,200
2006-12-22$4.13$4.131,400
2006-12-21$4.15$4.152,200
2006-12-20$4.09$4.082,200
2006-12-19$4.14$4.14400
2006-12-18$4.15$4.15400
2006-12-15$4.15$4.15400
2006-12-14$4.19$4.195,800
2006-12-13$4.16$4.151,800
2006-12-12$4.12$4.12200
2006-12-11$4.20$4.20400
2006-12-08$4.29$4.291,800
2006-12-07$4.32$4.3210,800
2006-12-06$4.36$4.362,800
2006-12-05$4.40$4.40400
2006-12-04$4.40$4.402,800
2006-12-01$4.40$4.404,000
2006-11-30$4.25$4.240
2006-11-29$4.25$4.2421,000
2006-11-28$4.20$4.201,800
2006-11-27$4.17$4.16200
2006-11-24$4.22$4.210
2006-11-22$4.22$4.2112,600
2006-11-21$4.16$4.1612,600
2006-11-20$4.08$4.083,800
2006-11-17$4.24$4.242,000
2006-11-16$4.25$4.251,000
2006-11-15$4.25$4.255,400
2006-11-14$4.14$4.144,200
2006-11-13$4.18$4.181,400
2006-11-10$4.14$4.141,000
2006-11-09$4.14$4.14600
2006-11-08$4.13$4.131,400
2006-11-07$4.13$4.131,200
2006-11-06$4.14$4.144,200
2006-11-03$4.26$4.261,200
2006-11-02$4.22$4.211,200
2006-11-01$4.25$4.251,200
2006-10-31$4.28$4.2811,200
2006-10-30$4.45$4.442,200
2006-10-27$4.49$4.49600
2006-10-26$4.49$4.491,000
2006-10-25$4.37$4.363,600
2006-10-24$4.29$4.286,800
2006-10-23$4.44$4.442,200
2006-10-20$4.43$4.431,600
2006-10-19$4.47$4.474,800
2006-10-18$4.50$4.508,600
2006-10-17$4.43$4.436,800
2006-10-16$4.34$4.336,200
2006-10-13$4.37$4.3713,800
2006-10-12$4.31$4.315,800
2006-10-11$4.31$4.314,400
2006-10-10$4.33$4.3314,400
2006-10-09$4.37$4.362,200
2006-10-06$4.13$4.1329,400
2006-10-05$4.38$4.388,000
2006-10-04$4.34$4.349,400
2006-10-03$4.38$4.3813,400
2006-10-02$4.50$4.5024,000
2006-09-29$4.34$4.341,400
2006-09-28$4.38$4.381,600
2006-09-27$4.46$4.4627,200
2006-09-26$4.45$4.4521,200
2006-09-25$4.34$4.3425,200
2006-09-22$4.24$4.232,200
2006-09-21$4.32$4.3214,600
2006-09-20$4.20$4.2020,400
2006-09-19$4.10$4.106,200
2006-09-18$4.05$4.056,400
2006-09-15$4.02$4.02600
2006-09-14$4.09$4.083,800
2006-09-13$4.16$4.163,600
2006-09-12$4.15$4.1513,600
2006-09-11$4.10$4.107,200
2006-09-08$4.18$4.181,600
2006-09-07$4.07$4.0712,400
2006-09-06$4.13$4.137,000
2006-09-05$4.15$4.1511,800
2006-09-01$4.07$4.0727,200
2006-08-31$4.04$4.0416,800
2006-08-30$3.98$3.9814,400
2006-08-29$4.00$4.003,200
2006-08-28$4.01$4.017,800
2006-08-25$4.07$4.070
2006-08-24$4.07$4.071,200
2006-08-23$4.00$4.004,400
2006-08-22$4.03$4.0324,600
2006-08-21$4.01$4.017,400
2006-08-18$4.11$4.115,600
2006-08-17$4.06$4.052,400
2006-08-16$4.03$4.0297,600
2006-08-15$4.13$4.1361,000
2006-08-14$4.00$4.0014,000
2006-08-11$3.96$3.9613,200
2006-08-10$4.05$4.0510,000
2006-08-09$4.00$4.0011,800
2006-08-08$4.04$4.0444,600
2006-08-07$3.56$3.562,200
2006-08-04$3.53$3.530
2006-08-03$3.53$3.530
2006-08-02$3.53$3.532,000
2006-08-01$3.54$3.540
2006-07-31$3.54$3.541,800
2006-07-28$3.53$3.524,000
2006-07-27$3.50$3.50400
2006-07-26$3.50$3.501,200
2006-07-25$3.52$3.519,400
2006-07-24$3.50$3.49600
2006-07-21$3.43$3.430
2006-07-20$3.43$3.433,200
2006-07-19$3.48$3.485,600
2006-07-18$3.52$3.52400
2006-07-17$3.48$3.4813,200
2006-07-14$3.50$3.491,600
2006-07-13$3.44$3.4412,800
2006-07-12$3.53$3.5210,000
2006-07-11$3.55$3.554,000
2006-07-10$3.53$3.53400
2006-07-07$3.56$3.563,600
2006-07-06$3.59$3.59400
2006-07-05$3.58$3.577,800
2006-07-03$3.54$3.540
2006-06-30$3.54$3.5412,400
2006-06-29$3.55$3.552,600
2006-06-28$3.50$3.49400
2006-06-27$3.59$3.5912,200
2006-06-26$3.44$3.433,200
2006-06-23$3.54$3.541,400
2006-06-22$3.55$3.554,000
2006-06-21$3.60$3.6013,000
2006-06-20$3.40$3.402,800
2006-06-19$3.46$3.460
2006-06-16$3.46$3.4625,000
2006-06-15$3.50$3.506,200
2006-06-14$3.32$3.318,200
2006-06-13$3.43$3.43600
2006-06-12$3.42$3.4115,400
2006-06-09$3.43$3.4312,800
2006-06-08$3.42$3.4135,600
2006-06-07$3.48$3.481,000
2006-06-06$3.45$3.4515,000
2006-06-05$3.51$3.51800
2006-06-02$3.60$3.604,600
2006-06-01$3.72$3.723,800
2006-05-31$3.53$3.522,400
2006-05-30$3.45$3.4514,000
2006-05-26$3.63$3.626,400
2006-05-25$3.60$3.601,000
2006-05-24$3.58$3.5822,200
2006-05-23$3.51$3.502,000
2006-05-22$3.50$3.507,400
2006-05-19$3.41$3.414,600
2006-05-18$3.46$3.463,800
2006-05-17$3.38$3.3825,400
2006-05-16$3.63$3.6285,000
2006-05-15$3.47$3.472,000
2006-05-12$3.31$3.318,800
2006-05-11$3.42$3.4214,000
2006-05-10$3.60$3.601,600
2006-05-09$3.51$3.513,600
2006-05-08$3.65$3.653,600
2006-05-05$3.64$3.6436,600
2006-05-04$3.50$3.497,800
2006-05-03$3.60$3.602,600
2006-05-02$3.61$3.611,200
2006-05-01$3.67$3.67200
2006-04-28$3.63$3.623,200
2006-04-27$3.53$3.531,800
2006-04-26$3.48$3.483,400
2006-04-25$3.64$3.632,600
2006-04-24$3.67$3.671,400
2006-04-21$3.68$3.671,400
2006-04-20$3.50$3.503,200
2006-04-19$3.58$3.57800
2006-04-18$3.58$3.571,200
2006-04-17$3.49$3.496,000
2006-04-13$3.52$3.51800
2006-04-12$3.44$3.441,400
2006-04-11$3.43$3.4313,200
2006-04-10$3.42$3.411,200
2006-04-07$3.40$3.403,000
2006-04-06$3.34$3.349,400
2006-04-05$3.18$3.1727,000
2006-04-04$3.18$3.187,200
2006-04-03$3.20$3.205,600
2006-03-31$3.17$3.1734,800
2006-03-30$3.00$3.002,400
2006-03-29$2.87$2.870
2006-03-28$2.87$2.873,200
2006-03-27$2.87$2.870
2006-03-24$2.87$2.8716,200
2006-03-23$2.93$2.927,800
2006-03-22$2.96$2.962,000
2006-03-21$3.05$3.052,000
2006-03-20$2.91$2.905,400
2006-03-17$2.95$2.954,800
2006-03-16$2.96$2.950
2006-03-15$2.96$2.950
2006-03-14$2.96$2.951,200
2006-03-13$3.06$3.062,000
2006-03-10$3.00$3.002,800
2006-03-09$3.00$3.000
2006-03-08$3.00$3.00600
2006-03-07$3.00$3.002,400
2006-03-06$3.06$3.0614,400
2006-03-03$3.07$3.0612,200
2006-03-02$2.90$2.904,200
2006-03-01$2.86$2.85400
2006-02-28$2.81$2.8117,600
2006-02-27$2.88$2.8722,600
2006-02-24$2.95$2.95200
2006-02-23$2.92$2.923,200
2006-02-22$2.92$2.921,800
2006-02-21$2.90$2.893,400
2006-02-17$3.02$3.027,000
2006-02-16$2.90$2.907,600
2006-02-15$2.88$2.8712,800
2006-02-14$3.02$3.0210,000
2006-02-13$3.03$3.039,200
2006-02-10$3.12$3.125,600
2006-02-09$3.12$3.124,800
2006-02-08$3.19$3.1816,400
2006-02-07$3.16$3.160
2006-02-06$3.16$3.165,800
2006-02-03$3.17$3.1710,600
2006-02-02$3.06$3.066,000
2006-02-01$3.13$3.124,400
2006-01-31$3.18$3.177,400
2006-01-30$3.21$3.215,400
2006-01-27$3.14$3.146,400
2006-01-26$3.19$3.180
2006-01-25$3.19$3.1819,800
2006-01-24$3.13$3.1212,000
2006-01-23$3.15$3.155,400
2006-01-20$3.17$3.168,000
2006-01-19$3.13$3.1214,200
2006-01-18$3.27$3.2712,400
2006-01-17$3.25$3.2535,200
2006-01-13$3.13$3.126,400
2006-01-12$3.16$3.16113,400
2006-01-11$3.47$3.476,600
2006-01-10$3.49$3.497,000
2006-01-09$3.42$3.4120,200
2006-01-06$3.53$3.526,200
2006-01-05$3.52$3.526,600
2006-01-04$3.55$3.5511,000
2006-01-03$3.42$3.422,200