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 — 2013

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2013-12-31$4.05$4.5931,800
2013-12-30$4.01$4.5563,000
2013-12-27$4.07$4.6263,200
2013-12-26$4.06$4.6035,000
2013-12-24$4.13$4.683,800
2013-12-23$4.15$4.6516,200
2013-12-20$4.11$4.6038,800
2013-12-19$4.10$4.5914,200
2013-12-18$4.09$4.5955,200
2013-12-17$4.00$4.4982,000
2013-12-16$4.04$4.5329,600
2013-12-13$4.10$4.6017,000
2013-12-12$4.07$4.5612,000
2013-12-11$4.08$4.589,200
2013-12-10$4.04$4.5320,000
2013-12-09$4.06$4.5534,200
2013-12-06$4.05$4.5413,000
2013-12-05$4.12$4.625,800
2013-12-04$4.09$4.5811,600
2013-12-03$4.13$4.6319,200
2013-12-02$4.10$4.6022,200
2013-11-29$4.05$4.5448,000
2013-11-27$4.08$4.5710,600
2013-11-26$3.87$4.3425,200
2013-11-25$3.87$4.342,800
2013-11-22$3.90$4.3742,000
2013-11-21$3.93$4.4017,000
2013-11-20$3.99$4.4721,800
2013-11-19$3.99$4.488,200
2013-11-18$3.99$4.4762,800
2013-11-15$3.93$4.4010,400
2013-11-14$3.95$4.4314,200
2013-11-13$3.95$4.4316,400
2013-11-12$3.92$4.393,200
2013-11-11$3.95$4.438,600
2013-11-08$3.97$4.459,200
2013-11-07$3.90$4.3747,400
2013-11-06$3.97$4.4568,600
2013-11-05$3.80$4.268,600
2013-11-04$3.90$4.3712,000
2013-11-01$3.84$4.3016,400
2013-10-31$3.78$4.2444,200
2013-10-30$3.53$3.9621,200
2013-10-29$3.49$3.919,400
2013-10-28$3.48$3.9019,800
2013-10-25$3.38$3.7923,800
2013-10-24$3.46$3.8814,800
2013-10-23$3.37$3.7721,000
2013-10-22$3.45$3.8622,800
2013-10-21$3.46$3.88131,400
2013-10-18$3.45$3.8694,600
2013-10-17$3.45$3.8727,000
2013-10-16$3.45$3.8743,800
2013-10-15$3.45$3.8687,000
2013-10-14$3.48$3.908,000
2013-10-11$3.50$3.9319,200
2013-10-10$3.50$3.9220,200
2013-10-09$3.50$3.9233,400
2013-10-08$3.54$3.9623,600
2013-10-07$3.52$3.9416,200
2013-10-04$3.50$3.9227,800
2013-10-03$3.51$3.9325,200
2013-10-02$3.55$3.9822,800
2013-10-01$3.55$3.9810,200
2013-09-30$3.54$3.9624,200
2013-09-27$3.58$4.01127,000
2013-09-26$3.55$3.9815,400
2013-09-25$3.58$4.016,600
2013-09-24$3.54$3.9723,000
2013-09-23$3.55$3.9813,600
2013-09-20$3.57$4.002,600
2013-09-19$3.56$3.9914,800
2013-09-18$3.57$4.0038,600
2013-09-17$3.52$3.9429,800
2013-09-16$3.58$4.028,800
2013-09-13$3.55$3.986,600
2013-09-12$3.53$3.9613,600
2013-09-11$3.58$4.0119,000
2013-09-10$3.67$4.1111,000
2013-09-09$3.52$3.9470,000
2013-09-06$3.57$4.0016,400
2013-09-05$3.53$3.9517,000
2013-09-04$3.55$3.9830,200
2013-09-03$3.55$3.9855,200
2013-08-30$3.54$3.9721,600
2013-08-29$3.57$4.0018,000
2013-08-28$3.52$3.9421,200
2013-08-27$3.52$3.9521,000
2013-08-26$3.52$3.9435,800
2013-08-23$3.50$3.9324,200
2013-08-22$3.47$3.8930,000
2013-08-21$3.48$3.9053,400
2013-08-20$3.46$3.8824,200
2013-08-19$3.44$3.8548,600
2013-08-16$3.50$3.8724,800
2013-08-15$3.48$3.8531,600
2013-08-14$3.50$3.8619,600
2013-08-13$3.48$3.8444,400
2013-08-12$3.42$3.7886,400
2013-08-09$3.43$3.7964,000
2013-08-08$3.52$3.89155,600
2013-08-07$3.44$3.80339,400
2013-08-06$4.38$4.8432,400
2013-08-05$4.40$4.8617,800
2013-08-02$4.40$4.8635,800
2013-08-01$4.40$4.8662,200
2013-07-31$4.37$4.8318,600
2013-07-30$4.41$4.886,400
2013-07-29$4.42$4.8823,400
2013-07-26$4.42$4.8940,800
2013-07-25$4.44$4.9023,600
2013-07-24$4.42$4.8920,200
2013-07-23$4.44$4.9050,000
2013-07-22$4.44$4.9032,000
2013-07-19$4.39$4.8544,400
2013-07-18$4.43$4.9057,600
2013-07-17$4.43$4.8926,600
2013-07-16$4.44$4.9011,400
2013-07-15$4.40$4.8655,800
2013-07-12$4.43$4.9029,000
2013-07-11$4.45$4.92243,400
2013-07-10$4.45$4.9284,200
2013-07-09$4.45$4.9121,400
2013-07-08$4.43$4.9017,400
2013-07-05$4.41$4.8835,600
2013-07-03$4.43$4.8912,600
2013-07-02$4.44$4.9017,800
2013-07-01$4.32$4.7758,000
2013-06-28$4.45$4.9223,000
2013-06-27$4.49$4.9631,000
2013-06-26$4.46$4.9318,000
2013-06-25$4.46$4.9353,600
2013-06-24$4.46$4.9382,600
2013-06-21$4.38$4.8452,800
2013-06-20$4.45$4.9147,400
2013-06-19$4.58$5.0617,800
2013-06-18$4.59$5.0720,800
2013-06-17$4.52$5.0051,000
2013-06-14$4.58$5.0621,000
2013-06-13$4.60$5.0836,200
2013-06-12$4.60$5.0984,200
2013-06-11$4.54$5.0285,200
2013-06-10$4.60$5.08265,000
2013-06-07$4.24$4.68260,800
2013-06-06$4.15$4.59153,600
2013-06-05$4.16$4.6014,000
2013-06-04$4.25$4.7071,200
2013-06-03$4.07$4.4936,000
2013-05-31$4.07$4.5017,200
2013-05-30$4.03$4.4668,800
2013-05-29$4.04$4.4664,600
2013-05-28$3.93$4.35139,000
2013-05-24$3.94$4.3588,200
2013-05-23$4.17$4.6110,800
2013-05-22$4.11$4.5492,000
2013-05-21$4.22$4.6055,800
2013-05-20$4.22$4.60120,800
2013-05-17$4.24$4.6341,600
2013-05-16$4.24$4.6364,200
2013-05-15$4.24$4.6367,200
2013-05-14$4.18$4.5642,000
2013-05-13$4.26$4.65178,600
2013-05-10$4.22$4.61111,600
2013-05-09$4.19$4.57329,800
2013-05-08$3.73$4.07672,600
2013-05-07$2.92$3.1856,000
2013-05-06$2.90$3.1790,000
2013-05-03$2.86$3.1211,200
2013-05-02$2.81$3.069,200
2013-05-01$2.78$3.0422,400
2013-04-30$2.78$3.0412,800
2013-04-29$2.75$3.003,000
2013-04-26$2.83$3.095,800
2013-04-25$2.86$3.1215,000
2013-04-24$2.70$2.958,200
2013-04-23$2.90$3.178,400
2013-04-22$2.90$3.1618,400
2013-04-19$2.95$3.2234,600
2013-04-18$2.95$3.2241,200
2013-04-17$2.95$3.2214,800
2013-04-16$2.95$3.2213,600
2013-04-15$2.95$3.2257,000
2013-04-12$2.92$3.1816,200
2013-04-11$2.91$3.1814,000
2013-04-10$2.91$3.1819,000
2013-04-09$2.92$3.191,600
2013-04-08$2.92$3.1816,200
2013-04-05$2.95$3.2229,600
2013-04-04$2.95$3.223,200
2013-04-03$2.92$3.1922,000
2013-04-02$2.92$3.199,200
2013-04-01$2.92$3.1918,800
2013-03-28$2.93$3.2030,000
2013-03-27$2.80$3.0615,800
2013-03-26$2.62$2.8615,000
2013-03-25$2.56$2.7940,000
2013-03-22$2.64$2.8830,000
2013-03-21$2.81$3.068,600
2013-03-20$2.82$3.0819,800
2013-03-19$2.89$3.1612,600
2013-03-18$2.92$3.181,200
2013-03-15$2.94$3.2190,200
2013-03-14$2.93$3.2032,000
2013-03-13$2.86$3.123,600
2013-03-12$2.90$3.1612,200
2013-03-11$2.83$3.0980,200
2013-03-08$2.97$3.2427,800
2013-03-07$3.03$3.3030,200
2013-03-06$3.09$3.3820,000
2013-03-05$3.08$3.3622,400
2013-03-04$3.07$3.3548,200
2013-03-01$2.98$3.26119,600
2013-02-28$3.39$3.705,200
2013-02-27$3.34$3.6543,600
2013-02-26$3.42$3.7345,000
2013-02-25$3.33$3.6416,200
2013-02-22$3.33$3.638,800
2013-02-21$3.35$3.6561,800
2013-02-20$3.35$3.6628,000
2013-02-19$3.35$3.6652,400
2013-02-15$3.35$3.6583,600
2013-02-14$3.34$3.6435,400
2013-02-13$3.32$3.6284,600
2013-02-12$3.24$3.53295,800
2013-02-11$3.34$3.65115,200
2013-02-08$3.30$3.6065,000
2013-02-07$3.30$3.61127,000
2013-02-06$3.06$3.3447,200
2013-02-05$3.12$3.4046,400
2013-02-04$3.06$3.3439,600
2013-02-01$3.11$3.4051,000
2013-01-31$3.13$3.4119,800
2013-01-30$3.14$3.4245,000
2013-01-29$3.13$3.4215,400
2013-01-28$3.13$3.4289,200
2013-01-25$3.10$3.3927,400
2013-01-24$3.14$3.4383,400
2013-01-23$3.11$3.3944,600
2013-01-22$2.93$3.2026,200
2013-01-18$2.92$3.1850,600
2013-01-17$3.02$3.2925,200
2013-01-16$3.03$3.3126,000
2013-01-15$3.03$3.3185,400
2013-01-14$3.33$3.6384,600
2013-01-11$3.36$3.6712,800
2013-01-10$3.29$3.5942,200
2013-01-09$3.39$3.7051,600
2013-01-08$3.37$3.6884,200
2013-01-07$3.31$3.6175,000
2013-01-04$3.35$3.6638,000
2013-01-03$3.31$3.6241,800
2013-01-02$3.28$3.58157,400