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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$9.75$15.6317,800
2023-12-28$9.89$15.8561,600
2023-12-27$9.88$15.8528,600
2023-12-26$10.08$16.1637,600
2023-12-22$10.16$16.2914,000
2023-12-21$10.13$16.2525,200
2023-12-20$10.05$16.0824,200
2023-12-19$9.71$15.5330,600
2023-12-18$9.57$15.3259,400
2023-12-15$8.35$13.37147,600
2023-12-14$9.11$14.57141,400
2023-12-13$9.72$15.56136,400
2023-12-12$8.95$14.33359,600
2023-12-11$11.32$18.11117,000
2023-12-08$11.25$18.0157,800
2023-12-07$12.25$19.6021,600
2023-12-06$12.05$19.2931,200
2023-12-05$12.45$19.9366,200
2023-12-04$12.63$20.22119,000
2023-12-01$13.85$22.1780,800
2023-11-30$12.48$19.9716,200
2023-11-29$12.50$20.0127,800
2023-11-28$12.54$20.0633,400
2023-11-27$12.44$19.9135,600
2023-11-24$12.57$20.1227,600
2023-11-22$12.77$20.4356,800
2023-11-21$12.44$19.9148,400
2023-11-20$12.40$19.8514,600
2023-11-17$12.00$19.2138,600
2023-11-16$11.48$18.3723,200
2023-11-15$12.13$19.4111,400
2023-11-14$11.84$18.9425,200
2023-11-13$11.85$18.9716,400
2023-11-10$12.00$19.2141,200
2023-11-09$12.40$19.8556,400
2023-11-08$9.67$15.4838,400
2023-11-07$9.78$15.6517,200
2023-11-06$10.45$16.7256,600
2023-11-03$10.28$16.4521,400
2023-11-02$10.70$17.1356,400
2023-11-01$10.13$16.218,200
2023-10-31$10.43$16.6926,800
2023-10-30$9.75$15.6146,800
2023-10-27$8.95$14.3319,200
2023-10-26$9.48$15.1710,600
2023-10-25$8.90$14.2424,200
2023-10-24$8.75$14.0126,600
2023-10-23$8.82$14.1211,600
2023-10-20$9.03$14.4577,800
2023-10-19$9.18$14.6967,600
2023-10-18$9.50$15.2094,800
2023-10-17$9.31$14.9049,800
2023-10-16$9.90$15.858,800
2023-10-13$9.95$15.9350,600
2023-10-12$10.47$16.7653,600
2023-10-11$9.49$15.1842,200
2023-10-10$9.00$14.4118,000
2023-10-09$8.26$13.2113,600
2023-10-06$8.55$13.687,600
2023-10-05$8.33$13.3345,400
2023-10-04$8.26$13.2133,800
2023-10-03$8.00$12.8125,800
2023-10-02$8.91$14.2535,000
2023-09-29$8.75$14.0172,200
2023-09-28$8.77$14.0315,200
2023-09-27$8.73$13.9740,200
2023-09-26$8.45$13.539,800
2023-09-25$8.25$13.2138,400
2023-09-22$8.54$13.6638,000
2023-09-21$8.36$13.3864,400
2023-09-20$8.62$13.79160,600
2023-09-19$9.81$15.69299,000
2023-09-18$11.80$18.88190,600
2023-09-15$10.95$17.53102,800
2023-09-14$10.55$16.8979,000
2023-09-13$10.19$16.3150,000
2023-09-12$10.21$16.3485,600
2023-09-11$9.93$15.8935,600
2023-09-08$9.65$15.4578,000
2023-09-07$9.49$15.1888,400
2023-09-06$9.01$14.42105,400
2023-09-05$8.85$14.16231,400
2023-09-01$8.00$12.8184,200
2023-08-31$7.75$12.4130,200
2023-08-30$7.78$12.4539,600
2023-08-29$7.63$12.2094,800
2023-08-28$7.34$11.7454,800
2023-08-25$7.05$11.2827,000
2023-08-24$7.20$11.5218,200
2023-08-23$7.11$11.3811,000
2023-08-22$7.06$11.2911,800
2023-08-21$7.35$11.7319,800
2023-08-18$7.47$11.9221,000
2023-08-17$7.33$11.6916,200
2023-08-16$7.45$11.8929,000
2023-08-15$7.05$11.2528,000
2023-08-14$6.85$10.9315,200
2023-08-11$6.61$10.5522,600
2023-08-10$6.79$10.8320,000
2023-08-09$6.80$10.8574,600
2023-08-08$6.31$10.0730,000
2023-08-07$6.50$10.3811,000
2023-08-04$6.54$10.4422,800
2023-08-03$6.47$10.336,200
2023-08-02$6.63$10.5811,800
2023-08-01$6.58$10.507,200
2023-07-31$6.41$10.236,000
2023-07-28$6.31$10.0612,600
2023-07-27$6.27$10.017,000
2023-07-26$6.09$9.7220,200
2023-07-25$5.83$9.306,000
2023-07-24$5.69$9.088,000
2023-07-21$5.68$9.078,600
2023-07-20$5.75$9.1818,800
2023-07-19$5.61$8.9511,000
2023-07-18$5.52$8.813,600
2023-07-17$5.38$8.5915,200
2023-07-14$5.38$8.585,400
2023-07-13$5.43$8.6741,400
2023-07-12$5.08$8.1032,000
2023-07-11$5.39$8.6012,600
2023-07-10$5.58$8.907,000
2023-07-07$5.82$9.288,600
2023-07-06$5.67$9.0532,400
2023-07-05$6.05$9.659,400
2023-07-03$6.06$9.6724,600
2023-06-30$5.96$9.5137,800
2023-06-29$6.45$10.3011,800
2023-06-28$6.50$10.3810,000
2023-06-27$6.61$10.5410,400
2023-06-26$6.70$10.699,000
2023-06-23$6.83$10.898,600
2023-06-22$6.58$10.503,800
2023-06-21$6.69$10.6722,400
2023-06-20$6.70$10.7021,800
2023-06-16$6.87$10.9741,400
2023-06-15$6.37$10.1612,800
2023-06-14$6.46$10.3114,000
2023-06-13$6.51$10.3820,000
2023-06-12$6.50$10.374,800
2023-06-09$6.44$10.273,400
2023-06-08$6.26$9.995,000
2023-06-07$6.39$10.1910,000
2023-06-06$6.24$9.9614,800
2023-06-05$6.19$9.8719,400
2023-06-02$6.22$9.9210,400
2023-06-01$6.17$9.8530,400
2023-05-31$6.16$9.836,600
2023-05-30$6.29$10.0310,800
2023-05-26$6.11$9.7512,200
2023-05-25$6.15$9.8123,400
2023-05-24$5.97$9.5374,400
2023-05-23$5.85$9.319,000
2023-05-22$5.95$9.479,800
2023-05-19$5.78$9.1926,400
2023-05-18$5.50$8.7515,200
2023-05-17$5.50$8.7532,200
2023-05-16$5.25$8.3523,800
2023-05-15$5.59$8.8912,400
2023-05-12$5.40$8.5926,200
2023-05-11$5.35$8.5116,800
2023-05-10$5.68$9.0424,600
2023-05-09$6.22$9.8915,200
2023-05-08$6.24$9.9222,000
2023-05-05$6.30$10.0223,200
2023-05-04$5.87$9.3328,200
2023-05-03$6.18$9.8219,400
2023-05-02$6.21$9.8711,400
2023-05-01$6.21$9.8728,200
2023-04-28$6.40$10.188,800
2023-04-27$6.64$10.564,000
2023-04-26$6.45$10.263,600
2023-04-25$6.44$10.2410,200
2023-04-24$6.70$10.6512,400
2023-04-21$7.12$11.329,000
2023-04-20$7.13$11.344,000
2023-04-19$7.21$11.467,600
2023-04-18$7.31$11.639,800
2023-04-17$7.22$11.486,800
2023-04-14$7.36$11.7033,000
2023-04-13$7.40$11.7740,200
2023-04-12$7.14$11.3617,800
2023-04-11$6.88$10.9424,800
2023-04-10$7.11$11.3016,200
2023-04-06$7.10$11.2911,800
2023-04-05$6.95$11.0626,000
2023-04-04$6.95$11.0618,200
2023-04-03$6.84$10.8717,000
2023-03-31$6.80$10.8115,800
2023-03-30$6.72$10.6811,400
2023-03-29$6.67$10.6115,400
2023-03-28$6.60$10.5020,400
2023-03-27$6.52$10.3643,400
2023-03-24$6.15$9.7814,800
2023-03-23$6.01$9.5518,000
2023-03-22$5.88$9.354,800
2023-03-21$5.92$9.4115,800
2023-03-20$5.93$9.435,600
2023-03-17$5.95$9.4715,000
2023-03-16$6.22$9.8964,800
2023-03-15$5.98$9.517,400
2023-03-14$5.88$9.3511,600
2023-03-13$5.85$9.319,600
2023-03-10$5.75$9.1510,400
2023-03-09$5.88$9.3528,200
2023-03-08$5.95$9.4610,800
2023-03-07$5.58$8.8715,600
2023-03-06$5.62$8.9421,200
2023-03-03$5.51$8.779,000
2023-03-02$5.49$8.738,000
2023-03-01$5.63$8.967,800
2023-02-28$5.53$8.807,200
2023-02-27$5.67$9.0113,600
2023-02-24$5.63$8.966,400
2023-02-23$5.60$8.9117,000
2023-02-22$5.63$8.9228,200
2023-02-21$5.63$8.9321,800
2023-02-17$5.90$9.359,000
2023-02-16$6.00$9.518,600
2023-02-15$6.03$9.5639,400
2023-02-14$6.10$9.6832,200
2023-02-13$6.04$9.5842,200
2023-02-10$5.48$8.6912,400
2023-02-09$5.41$8.5831,800
2023-02-08$5.60$8.88126,800
2023-02-07$5.81$9.2135,000
2023-02-06$5.66$8.9712,200
2023-02-03$5.53$8.7716,000
2023-02-02$5.51$8.749,000
2023-02-01$5.44$8.6317,400
2023-01-31$5.43$8.611,200
2023-01-30$5.43$8.615,400
2023-01-27$5.44$8.635,200
2023-01-26$5.53$8.778,800
2023-01-25$5.48$8.697,400
2023-01-24$5.43$8.6210,400
2023-01-23$5.51$8.7416,600
2023-01-20$5.49$8.7011,600
2023-01-19$5.37$8.5215,600
2023-01-18$5.55$8.8122,800
2023-01-17$5.43$8.6257,400
2023-01-13$5.25$8.3331,600
2023-01-12$5.06$8.0310,000
2023-01-11$5.13$8.144,400
2023-01-10$5.13$8.1415,400
2023-01-09$5.12$8.1225,800
2023-01-06$4.91$7.7923,800
2023-01-05$4.83$7.6628,800
2023-01-04$4.72$7.4825,800
2023-01-03$4.73$7.508,600