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 — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$5.20$5.19141,200——
2004-12-30$5.02$5.01225,600——
2004-12-29$5.23$5.23928,200——
2004-12-28$3.98$3.988,600——
2004-12-27$4.09$4.082,600——
2004-12-23$4.20$4.206,600——
2004-12-22$4.46$4.460——
2004-12-21$4.46$4.4611,400——
2004-12-20$4.00$4.003,200——
2004-12-17$4.33$4.332,000——
2004-12-16$4.25$4.253,600——
2004-12-15$4.15$4.153,200——
2004-12-14$4.13$4.136,800——
2004-12-13$4.20$4.202,200——
2004-12-10$4.13$4.132,400——
2004-12-09$4.13$4.134,600——
2004-12-08$4.11$4.111,000——
2004-12-07$4.33$4.330——
2004-12-06$4.33$4.331,000——
2004-12-03$4.30$4.301,000——
2004-12-02$4.33$4.330——
2004-12-01$4.33$4.33800——
2004-11-30$4.40$4.404,000——
2004-11-29$4.40$4.401,000——
2004-11-26$4.30$4.300——
2004-11-24$4.30$4.302,000——
2004-11-23$4.22$4.2216,400——
2004-11-22$4.50$4.505,600——
2004-11-19$4.05$4.054,400——
2004-11-18$4.30$4.301,000——
2004-11-17$4.30$4.30200——
2004-11-16$4.14$4.130——
2004-11-15$4.14$4.1311,600——
2004-11-12$4.28$4.284,200——
2004-11-11$3.99$3.992,400——
2004-11-10$3.89$3.891,000——
2004-11-09$3.85$3.859,800——
2004-11-08$4.11$4.11800——
2004-11-05$4.20$4.207,200——
2004-11-04$4.19$4.195,400——
2004-11-03$4.13$4.1310,200——
2004-11-02$4.10$4.104,400——
2004-11-01$4.15$4.157,600——
2004-10-29$4.19$4.188,000——
2004-10-28$4.13$4.1319,000——
2004-10-27$4.01$4.012,800——
2004-10-26$4.09$4.089,600——
2004-10-25$3.97$3.960——
2004-10-22$3.97$3.964,600——
2004-10-21$3.84$3.841,000——
2004-10-20$3.97$3.975,000——
2004-10-19$3.70$3.708,800——
2004-10-18$3.78$3.786,400——
2004-10-15$3.68$3.6722,600——
2004-10-14$3.56$3.561,800——
2004-10-13$3.82$3.823,200——
2004-10-12$3.81$3.8012,800——
2004-10-11$3.75$3.758,600——
2004-10-08$3.65$3.65600——
2004-10-07$3.78$3.789,400——
2004-10-06$3.81$3.8118,000——
2004-10-05$3.90$3.8918,000——
2004-10-04$3.77$3.770——
2004-10-01$3.77$3.773,400——
2004-09-30$3.74$3.741,200——
2004-09-29$3.78$3.7814,200——
2004-09-28$3.54$3.5421,400——
2004-09-27$4.05$4.052,800——
2004-09-24$4.05$4.05400——
2004-09-23$4.02$4.028,600——
2004-09-22$4.01$4.016,000——
2004-09-21$4.13$4.131,000——
2004-09-20$3.95$3.956,800——
2004-09-17$4.10$4.1014,800——
2004-09-16$3.75$3.7419,800——
2004-09-15$3.91$3.904,800——
2004-09-14$3.73$3.722,400——
2004-09-13$3.75$3.7512,400——
2004-09-10$3.60$3.6021,600——
2004-09-09$3.50$3.5012,000——
2004-09-08$3.13$3.1210,000——
2004-09-07$3.18$3.1861,000——
2004-09-03$3.30$3.301,400——
2004-09-02$3.22$3.2211,600——
2004-09-01$3.50$3.503,000——
2004-08-31$3.45$3.4414,200——
2004-08-30$3.22$3.228,400——
2004-08-27$3.14$3.131,000——
2004-08-26$3.42$3.425,800——
2004-08-25$3.48$3.480——
2004-08-24$3.48$3.480——
2004-08-23$3.48$3.484,000——
2004-08-20$3.29$3.291,200——
2004-08-19$3.51$3.5112,000——
2004-08-18$3.48$3.480——
2004-08-17$3.48$3.4817,000——
2004-08-16$3.50$3.491,600——
2004-08-13$3.38$3.381,000——
2004-08-12$3.28$3.284,400——
2004-08-11$3.30$3.302,200——
2004-08-10$3.50$3.5013,200——
2004-08-09$3.25$3.2511,600——
2004-08-06$3.58$3.5710,000——
2004-08-05$3.35$3.3533,800——
2004-08-04$3.37$3.377,400——
2004-08-03$3.75$3.754,800——
2004-08-02$3.30$3.3010,800——
2004-07-30$3.28$3.2810,800——
2004-07-29$3.29$3.294,000——
2004-07-28$3.20$3.2018,600——
2004-07-27$3.13$3.12200——
2004-07-26$3.33$3.331,600——
2004-07-23$3.20$3.2012,800——
2004-07-22$3.19$3.190——
2004-07-21$3.19$3.199,800——
2004-07-20$3.31$3.314,800——
2004-07-19$3.24$3.243,800——
2004-07-16$3.15$3.155,600——
2004-07-15$3.26$3.268,400——
2004-07-14$3.20$3.20200——
2004-07-13$3.28$3.2827,000——
2004-07-12$3.35$3.358,000——
2004-07-09$3.36$3.354,200——
2004-07-08$3.39$3.3913,200——
2004-07-07$3.43$3.4323,600——
2004-07-06$3.47$3.4628,200——
2004-07-02$3.61$3.614,600——
2004-07-01$3.52$3.521,200——
2004-06-30$3.70$3.7012,600——
2004-06-29$3.51$3.502,000——
2004-06-28$3.56$3.564,400——
2004-06-25$3.50$3.4912,000——
2004-06-24$3.51$3.500——
2004-06-23$3.51$3.503,400——
2004-06-22$3.45$3.456,800——
2004-06-21$3.52$3.517,000——
2004-06-18$3.50$3.50600——
2004-06-17$3.50$3.506,200——
2004-06-16$3.63$3.620——
2004-06-15$3.63$3.622,200——
2004-06-14$3.74$3.7416,600——
2004-06-10$3.25$3.2542,600——
2004-06-09$3.36$3.3538,000——
2004-06-08$3.41$3.4124,800——
2004-06-07$3.62$3.6219,600——
2004-06-04$3.69$3.686,600——
2004-06-03$3.67$3.6796,000——
2004-06-02$3.79$3.791,600——
2004-06-01$3.88$3.887,400——
2004-05-28$3.60$3.6015,000——
2004-05-27$3.30$3.309,000——
2004-05-26$3.30$3.3010,000——
2004-05-25$3.25$3.253,800——
2004-05-24$3.10$3.101,600——
2004-05-21$3.20$3.205,400——
2004-05-20$3.33$3.3315,800——
2004-05-19$3.36$3.36600——
2004-05-18$3.36$3.357,400——
2004-05-17$3.36$3.3510,200——
2004-05-14$3.52$3.5225,600——
2004-05-13$3.21$3.211,000——
2004-05-12$3.26$3.26142,000——
2004-05-11$3.35$3.3577,800——
2004-05-10$3.38$3.3873,800——
2004-05-07$3.73$3.731,400——
2004-05-06$3.72$3.7238,600——
2004-05-05$3.75$3.7516,600——
2004-05-04$3.90$3.9029,000——
2004-05-03$3.53$3.5236,000——
2004-04-30$3.96$3.9610,600——
2004-04-29$3.98$3.9879,800——
2004-04-28$4.07$4.07596,000——
2004-04-27$3.05$3.051,200——
2004-04-26$2.89$2.88600——
2004-04-23$3.19$3.190——
2004-04-22$3.19$3.193,800——
2004-04-21$3.20$3.201,000——
2004-04-20$3.20$3.20800——
2004-04-19$3.23$3.239,000——
2004-04-16$3.00$3.000——
2004-04-15$3.00$3.002,200——
2004-04-14$2.80$2.7910,400——
2004-04-13$2.89$2.890——
2004-04-12$2.89$2.890——
2004-04-08$2.89$2.89800——
2004-04-07$3.00$2.991,200——
2004-04-06$3.00$3.000——
2004-04-05$3.00$3.002,000——
2004-04-02$2.79$2.792,000——
2004-04-01$3.00$3.001,000——
2004-03-31$3.00$3.006,200——
2004-03-30$2.83$2.836,400——
2004-03-29$3.11$3.106,800——
2004-03-26$3.01$3.0133,200——
2004-03-25$2.90$2.90600——
2004-03-24$2.78$2.782,600——
2004-03-23$2.79$2.782,400——
2004-03-22$2.86$2.850——
2004-03-19$2.86$2.851,000——
2004-03-18$2.79$2.790——
2004-03-17$2.79$2.790——
2004-03-16$2.79$2.79400——
2004-03-15$2.92$2.922,400——
2004-03-12$2.92$2.921,600——
2004-03-11$3.00$3.000——
2004-03-10$3.00$3.003,800——
2004-03-09$2.93$2.92600——
2004-03-08$3.02$3.020——
2004-03-05$3.02$3.0221,200——
2004-03-04$3.25$3.250——
2004-03-03$3.25$3.255,600——
2004-03-02$3.25$3.2529,400——
2004-03-01$3.09$3.094,600——
2004-02-27$3.27$3.279,200——
2004-02-26$3.03$3.038,600——
2004-02-25$3.23$3.235,600——
2004-02-24$2.96$2.95400——
2004-02-23$3.20$3.200——
2004-02-20$3.20$3.206,800——
2004-02-19$2.97$2.969,600——
2004-02-18$3.11$3.104,200——
2004-02-17$3.09$3.09400——
2004-02-13$3.21$3.210——
2004-02-12$3.21$3.217,200——
2004-02-11$3.12$3.12200——
2004-02-10$3.08$3.0714,200——
2004-02-09$3.18$3.188,800——
2004-02-06$3.33$3.3333,600——
2004-02-05$3.35$3.3566,800——
2004-02-04$3.25$3.253,000——
2004-02-03$3.15$3.155,400——
2004-02-02$3.23$3.239,800——
2004-01-30$3.07$3.074,200——
2004-01-29$2.97$2.9622,800——
2004-01-28$3.02$3.0217,600——
2004-01-27$3.04$3.046,800——
2004-01-26$3.13$3.1311,600——
2004-01-23$3.21$3.213,400——
2004-01-22$3.25$3.2553,400——
2004-01-21$3.21$3.2115,400——
2004-01-20$3.10$3.1020,400——
2004-01-16$3.19$3.1814,800——
2004-01-15$2.93$2.923,200——
2004-01-14$3.07$3.061,200——
2004-01-13$3.00$3.004,000——
2004-01-12$2.89$2.8812,400——
2004-01-09$2.94$2.9442,800——
2004-01-08$3.00$3.001,000——
2004-01-07$3.01$3.012,800——
2004-01-06$3.00$3.001,800——
2004-01-05$3.16$3.164,600——
2004-01-02$3.18$3.1724,600——