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.

View year

Historical Stock Price — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$3.53$3.5224,400
2005-12-29$3.48$3.487,800
2005-12-28$3.55$3.5522,000
2005-12-27$3.59$3.5813,000
2005-12-23$3.46$3.467,600
2005-12-22$3.49$3.4912,000
2005-12-21$3.49$3.4958,200
2005-12-20$3.58$3.5721,000
2005-12-19$3.64$3.645,600
2005-12-16$3.45$3.443,400
2005-12-15$3.61$3.6123,600
2005-12-14$3.64$3.6362,200
2005-12-13$3.69$3.6814,000
2005-12-12$3.74$3.745,600
2005-12-09$3.84$3.8416,400
2005-12-08$3.76$3.760
2005-12-07$3.76$3.7659,400
2005-12-06$3.61$3.612,000
2005-12-05$3.67$3.6710,800
2005-12-02$3.58$3.5714,000
2005-12-01$3.63$3.636,800
2005-11-30$3.57$3.5733,800
2005-11-29$3.36$3.3526,200
2005-11-28$3.37$3.3725,800
2005-11-25$3.48$3.481,800
2005-11-23$3.43$3.4312,400
2005-11-22$3.52$3.518,600
2005-11-21$3.51$3.5023,800
2005-11-18$3.59$3.5920,400
2005-11-17$3.58$3.5814,000
2005-11-16$3.47$3.463,000
2005-11-15$3.54$3.5416,800
2005-11-14$3.64$3.6418,000
2005-11-11$3.94$3.9320,600
2005-11-10$3.76$3.7611,200
2005-11-09$3.50$3.507,400
2005-11-08$3.45$3.444,800
2005-11-07$3.46$3.456,200
2005-11-04$3.37$3.372,400
2005-11-03$3.37$3.3714,800
2005-11-02$3.40$3.4027,000
2005-11-01$3.27$3.2716,600
2005-10-31$3.18$3.1739,200
2005-10-28$3.16$3.1633,200
2005-10-27$3.18$3.1787,600
2005-10-26$3.35$3.3523,800
2005-10-25$3.41$3.4137,000
2005-10-24$3.34$3.3449,800
2005-10-21$3.47$3.465,200
2005-10-20$3.45$3.4519,200
2005-10-19$3.54$3.5415,200
2005-10-18$3.50$3.509,400
2005-10-17$3.51$3.514,600
2005-10-14$3.50$3.506,800
2005-10-13$3.54$3.5426,000
2005-10-12$3.57$3.573,400
2005-10-11$3.54$3.543,000
2005-10-10$3.45$3.4523,800
2005-10-07$3.41$3.415,000
2005-10-06$3.52$3.5115,800
2005-10-05$3.46$3.464,400
2005-10-04$3.57$3.573,000
2005-10-03$3.53$3.521,400
2005-09-30$3.57$3.576,400
2005-09-29$3.58$3.578,200
2005-09-28$3.56$3.5652,600
2005-09-27$3.44$3.4450,200
2005-09-26$3.53$3.5266,200
2005-09-23$3.48$3.4810,200
2005-09-22$3.48$3.489,400
2005-09-21$3.56$3.5644,400
2005-09-20$3.62$3.6111,800
2005-09-19$3.72$3.721,800
2005-09-16$3.75$3.7418,000
2005-09-15$3.64$3.6411,600
2005-09-14$3.74$3.7414,600
2005-09-13$3.91$3.9179,600
2005-09-12$3.86$3.8531,400
2005-09-09$3.76$3.7636,400
2005-09-08$3.52$3.5219,800
2005-09-07$3.56$3.5636,400
2005-09-06$3.51$3.5129,600
2005-09-02$3.56$3.566,400
2005-09-01$3.58$3.5713,400
2005-08-31$3.56$3.566,600
2005-08-30$3.53$3.538,000
2005-08-29$3.58$3.575,600
2005-08-26$3.58$3.5733,400
2005-08-25$3.68$3.6854,200
2005-08-24$3.82$3.8246,200
2005-08-23$3.90$3.898,600
2005-08-22$3.83$3.8335,000
2005-08-19$3.85$3.8523,200
2005-08-18$3.92$3.9210,000
2005-08-17$3.80$3.8038,800
2005-08-16$3.98$3.9873,600
2005-08-15$3.84$3.84136,000
2005-08-12$3.69$3.6980,800
2005-08-11$3.65$3.65139,400
2005-08-10$3.60$3.601,609,400
2005-08-09$5.24$5.2368,000
2005-08-08$5.42$5.42103,600
2005-08-05$5.64$5.63102,000
2005-08-04$5.44$5.4473,000
2005-08-03$5.33$5.3357,400
2005-08-02$5.26$5.26201,000
2005-08-01$5.29$5.2950,400
2005-07-29$5.33$5.3247,000
2005-07-28$5.21$5.21127,800
2005-07-27$5.19$5.19337,800
2005-07-26$4.90$4.9058,600
2005-07-25$4.68$4.6839,400
2005-07-22$4.84$4.8429,400
2005-07-21$5.00$5.00100,200
2005-07-20$5.08$5.08283,000
2005-07-19$4.54$4.5414,200
2005-07-18$4.53$4.5215,400
2005-07-15$4.54$4.5410,400
2005-07-14$4.58$4.5833,000
2005-07-13$4.65$4.6446,200
2005-07-12$4.56$4.55110,000
2005-07-11$4.40$4.4015,400
2005-07-08$4.40$4.4023,600
2005-07-07$4.45$4.4542,600
2005-07-06$4.38$4.388,000
2005-07-05$4.28$4.2811,600
2005-07-01$4.31$4.3128,000
2005-06-30$4.12$4.1147,000
2005-06-29$4.33$4.3342,400
2005-06-28$4.26$4.2644,000
2005-06-27$4.23$4.2329,200
2005-06-24$4.25$4.2523,600
2005-06-23$4.33$4.3352,200
2005-06-22$4.43$4.4345,600
2005-06-21$4.49$4.4950,000
2005-06-20$4.35$4.3425,800
2005-06-17$4.39$4.3940,800
2005-06-16$4.34$4.3477,200
2005-06-15$4.44$4.4498,800
2005-06-14$4.50$4.5097,800
2005-06-13$4.33$4.3392,200
2005-06-10$4.53$4.5265,600
2005-06-09$4.55$4.5543,000
2005-06-08$4.58$4.5897,000
2005-06-07$4.81$4.8151,600
2005-06-06$4.72$4.7229,800
2005-06-03$4.73$4.7248,800
2005-06-02$4.80$4.80128,600
2005-06-01$4.71$4.70218,400
2005-05-31$4.91$4.91983,400
2005-05-27$4.50$4.50172,600
2005-05-26$4.07$4.06103,000
2005-05-25$4.26$4.2620,800
2005-05-24$4.20$4.2042,000
2005-05-23$4.37$4.3669,200
2005-05-20$4.38$4.38167,600
2005-05-19$4.11$4.11179,800
2005-05-18$3.98$3.98350,800
2005-05-17$4.12$4.11173,400
2005-05-16$4.19$4.19281,000
2005-05-13$4.46$4.46500,400
2005-05-12$5.13$5.12753,600
2005-05-11$5.01$5.00719,800
2005-05-10$4.62$4.621,476,200
2005-05-09$3.50$3.5012,000
2005-05-06$3.50$3.493,800
2005-05-05$3.45$3.450
2005-05-04$3.45$3.455,200
2005-05-03$3.25$3.2515,000
2005-05-02$3.31$3.31800
2005-04-29$3.63$3.631,200
2005-04-28$3.54$3.54800
2005-04-27$3.50$3.502,200
2005-04-26$3.53$3.52600
2005-04-25$3.50$3.492,600
2005-04-22$3.38$3.3810,000
2005-04-21$3.34$3.3418,400
2005-04-20$3.60$3.6014,800
2005-04-19$3.56$3.5614,000
2005-04-18$3.80$3.803,000
2005-04-15$3.76$3.760
2005-04-14$3.76$3.768,800
2005-04-13$3.60$3.602,800
2005-04-12$3.74$3.747,200
2005-04-11$3.82$3.820
2005-04-08$3.82$3.828,600
2005-04-07$4.07$4.0716,800
2005-04-06$3.96$3.963,200
2005-04-05$4.10$4.10600
2005-04-04$4.39$4.39800
2005-04-01$4.23$4.231,400
2005-03-31$4.34$4.336,400
2005-03-30$4.35$4.3419,800
2005-03-29$4.25$4.254,800
2005-03-28$4.28$4.2814,000
2005-03-24$4.02$4.0210,200
2005-03-23$3.71$3.716,800
2005-03-22$3.63$3.6362,400
2005-03-21$3.36$3.3514,800
2005-03-18$3.53$3.5311,400
2005-03-17$3.62$3.620
2005-03-16$3.62$3.62800
2005-03-15$3.61$3.61800
2005-03-14$3.60$3.602,400
2005-03-11$3.58$3.572,600
2005-03-10$3.76$3.76400
2005-03-09$3.83$3.8331,600
2005-03-08$3.75$3.7560,800
2005-03-07$4.00$4.001,200
2005-03-04$3.94$3.930
2005-03-03$3.94$3.932,000
2005-03-02$4.00$3.996,200
2005-03-01$4.06$4.0514,600
2005-02-28$4.00$3.9925,800
2005-02-25$3.95$3.9526,000
2005-02-24$3.97$3.9627,000
2005-02-23$4.05$4.0513,000
2005-02-22$4.10$4.10220,600
2005-02-18$4.82$4.815,200
2005-02-17$4.71$4.7026,400
2005-02-16$4.69$4.694,600
2005-02-15$4.70$4.701,200
2005-02-14$4.73$4.724,800
2005-02-11$4.90$4.899,200
2005-02-10$5.00$5.005,800
2005-02-09$4.83$4.833,600
2005-02-08$4.99$4.996,000
2005-02-07$4.78$4.7810,400
2005-02-04$5.00$5.004,200
2005-02-03$4.87$4.8615,200
2005-02-02$4.70$4.7044,200
2005-02-01$4.44$4.4421,200
2005-01-31$4.81$4.813,200
2005-01-28$4.81$4.809,400
2005-01-27$4.68$4.6815,600
2005-01-26$4.36$4.3517,000
2005-01-25$4.31$4.3031,200
2005-01-24$4.30$4.3021,800
2005-01-21$4.43$4.4314,400
2005-01-20$4.52$4.5116,600
2005-01-19$4.58$4.5732,600
2005-01-18$4.28$4.2816,800
2005-01-14$4.54$4.5442,400
2005-01-13$4.54$4.5412,200
2005-01-12$4.53$4.5310,600
2005-01-11$4.63$4.6296,000
2005-01-10$4.59$4.5882,800
2005-01-07$4.71$4.7142,800
2005-01-06$4.80$4.8045,200
2005-01-05$4.74$4.7413,200
2005-01-04$4.71$4.7083,800
2005-01-03$4.88$4.8775,800