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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$6.53$10.174,000
2019-12-30$6.61$10.293,600
2019-12-27$6.54$10.075,800
2019-12-26$6.71$10.331,000
2019-12-24$6.65$10.241,800
2019-12-23$6.72$10.351,600
2019-12-20$6.73$10.362,400
2019-12-19$6.73$10.363,000
2019-12-18$6.71$10.335,400
2019-12-17$6.63$10.2014,200
2019-12-16$6.80$10.4733,800
2019-12-13$6.72$10.343,800
2019-12-12$6.63$10.2026,000
2019-12-11$6.63$10.2033,600
2019-12-10$6.45$9.9410,800
2019-12-09$6.40$9.862,800
2019-12-06$6.27$9.653,800
2019-12-05$6.35$9.772,200
2019-12-04$6.31$9.72800
2019-12-03$6.41$9.871,800
2019-12-02$6.42$9.8827,400
2019-11-29$6.42$9.881,600
2019-11-27$6.43$9.902,400
2019-11-26$6.45$9.941,200
2019-11-25$6.45$9.94400
2019-11-22$6.45$9.943,000
2019-11-21$6.27$9.666,800
2019-11-20$6.01$9.256,800
2019-11-19$6.43$9.902,000
2019-11-18$6.39$9.842,400
2019-11-15$6.33$9.746,400
2019-11-14$6.45$9.945,200
2019-11-13$6.44$9.927,400
2019-11-12$6.45$9.9413,600
2019-11-11$6.35$9.782,000
2019-11-08$6.33$9.743,000
2019-11-07$6.38$9.822,000
2019-11-06$6.41$9.87400
2019-11-05$6.43$9.90800
2019-11-04$6.45$9.931,600
2019-11-01$6.37$9.801,200
2019-10-31$6.21$9.579,600
2019-10-30$6.58$10.142,200
2019-10-29$6.48$9.981,800
2019-10-28$6.56$10.10200
2019-10-25$6.56$10.10400
2019-10-24$6.58$10.131,800
2019-10-23$6.62$10.192,200
2019-10-22$6.56$10.10800
2019-10-21$6.59$10.141,200
2019-10-18$6.49$10.001,800
2019-10-17$6.56$10.103,200
2019-10-16$6.54$10.073,000
2019-10-15$6.60$10.163,400
2019-10-14$6.62$10.201,400
2019-10-11$6.63$10.205,400
2019-10-10$6.61$10.1713,400
2019-10-09$6.55$10.083,400
2019-10-08$6.42$9.8919,000
2019-10-07$6.58$10.130
2019-10-04$6.58$10.133,600
2019-10-03$6.58$10.133,600
2019-10-02$6.43$9.902,600
2019-10-01$6.78$10.441,000
2019-09-30$6.71$10.34600
2019-09-27$6.65$10.242,200
2019-09-26$6.54$10.07600
2019-09-25$6.41$9.873,400
2019-09-24$6.69$10.301,600
2019-09-23$6.72$10.35200
2019-09-20$6.72$10.359,200
2019-09-19$6.48$9.984,800
2019-09-18$6.40$9.862,400
2019-09-17$6.45$9.941,800
2019-09-16$6.65$10.242,000
2019-09-13$6.65$10.243,800
2019-09-12$6.72$10.356,000
2019-09-11$6.82$10.511,400
2019-09-10$6.79$10.450
2019-09-09$6.79$10.455,400
2019-09-06$6.79$10.463,600
2019-09-05$6.70$10.324,600
2019-09-04$6.72$10.352,000
2019-09-03$6.83$10.510
2019-08-30$6.83$10.51600
2019-08-29$6.80$10.472,000
2019-08-28$6.74$10.271,200
2019-08-27$6.68$10.171,400
2019-08-26$6.76$10.291,400
2019-08-23$6.71$10.210
2019-08-22$6.71$10.21800
2019-08-21$6.65$10.131,400
2019-08-20$6.81$10.371,000
2019-08-19$6.70$10.212,000
2019-08-16$6.82$10.391,000
2019-08-15$6.75$10.28200
2019-08-14$6.75$10.28400
2019-08-13$6.75$10.281,600
2019-08-12$6.65$10.13800
2019-08-09$6.81$10.371,000
2019-08-08$6.85$10.4311,600
2019-08-07$6.72$10.2418,600
2019-08-06$6.88$10.473,800
2019-08-05$6.96$10.592,200
2019-08-02$7.33$11.17400
2019-08-01$6.75$10.282,800
2019-07-31$6.83$10.406,600
2019-07-30$6.96$10.601,800
2019-07-29$6.88$10.473,400
2019-07-26$6.99$10.653,200
2019-07-25$7.04$10.723,000
2019-07-24$7.09$10.801,400
2019-07-23$7.06$10.753,400
2019-07-22$7.06$10.751,600
2019-07-19$7.08$10.781,600
2019-07-18$6.90$10.511,200
2019-07-17$7.11$10.821,400
2019-07-16$7.05$10.744,800
2019-07-15$6.97$10.621,800
2019-07-12$7.03$10.716,800
2019-07-11$7.29$11.102,800
2019-07-10$7.18$10.933,000
2019-07-09$7.19$10.942,600
2019-07-08$7.23$11.013,200
2019-07-05$7.47$11.371,000
2019-07-03$7.47$11.37200
2019-07-02$7.26$11.0514,400
2019-07-01$7.55$11.502,200
2019-06-28$7.63$11.614,600
2019-06-27$7.56$11.513,200
2019-06-26$7.45$11.347,200
2019-06-25$7.43$11.32200
2019-06-24$7.43$11.323,600
2019-06-21$7.48$11.39600
2019-06-20$7.61$11.59200
2019-06-19$7.62$11.614,200
2019-06-18$7.62$11.607,000
2019-06-17$7.60$11.5816,200
2019-06-14$7.54$11.486,800
2019-06-13$7.19$10.953,200
2019-06-12$7.25$11.048,000
2019-06-11$7.56$11.523,000
2019-06-10$7.48$11.391,400
2019-06-07$7.60$11.585,800
2019-06-06$7.50$11.42800
2019-06-05$7.24$11.038,400
2019-06-04$7.52$11.4516,600
2019-06-03$7.05$10.7411,400
2019-05-31$6.97$10.622,600
2019-05-30$6.85$10.433,200
2019-05-29$6.87$10.34600
2019-05-28$7.04$10.60400
2019-05-24$6.88$10.374,000
2019-05-23$6.97$10.4917,200
2019-05-22$7.18$10.8119,200
2019-05-21$7.30$11.004,800
2019-05-20$7.17$10.792,200
2019-05-17$7.35$11.0720,400
2019-05-16$7.05$10.6215,200
2019-05-15$6.96$10.4819,000
2019-05-14$6.67$10.0524,200
2019-05-13$6.50$9.7913,400
2019-05-10$6.39$9.634,000
2019-05-09$6.43$9.68200
2019-05-08$6.43$9.6826,600
2019-05-07$6.83$10.283,200
2019-05-06$6.75$10.175,000
2019-05-03$7.02$10.581,400
2019-05-02$6.51$9.813,800
2019-05-01$6.59$9.92200
2019-04-30$6.59$9.922,600
2019-04-29$6.47$9.75400
2019-04-26$6.41$9.661,200
2019-04-25$6.29$9.48600
2019-04-24$6.29$9.482,200
2019-04-23$6.34$9.5414,400
2019-04-22$6.20$9.349,200
2019-04-18$6.13$9.245,800
2019-04-17$5.90$8.89600
2019-04-16$6.02$9.062,400
2019-04-15$6.01$9.05600
2019-04-12$6.02$9.0620,000
2019-04-11$6.01$9.058,000
2019-04-10$6.10$9.1935,000
2019-04-09$6.11$9.2017,200
2019-04-08$6.24$9.3910,600
2019-04-05$5.90$8.892,200
2019-04-04$5.61$8.446,600
2019-04-03$6.00$9.0310,200
2019-04-02$5.79$8.7217,200
2019-04-01$5.65$8.5031,600
2019-03-29$5.58$8.401,400
2019-03-28$5.68$8.552,400
2019-03-27$5.70$8.5911,200
2019-03-26$5.75$8.664,400
2019-03-25$5.50$8.2814,400
2019-03-22$5.35$8.068,600
2019-03-21$5.33$8.027,400
2019-03-20$5.43$8.177,800
2019-03-19$5.30$7.9826,800
2019-03-18$5.27$7.938,800
2019-03-15$5.18$7.8013,400
2019-03-14$5.18$7.8019,400
2019-03-13$5.21$7.844,800
2019-03-12$5.14$7.747,200
2019-03-11$5.17$7.791,200
2019-03-08$5.15$7.753,200
2019-03-07$5.10$7.6814,800
2019-03-06$5.05$7.613,600
2019-03-05$5.06$7.6210,000
2019-03-04$5.05$7.602,200
2019-03-01$5.05$7.617,600
2019-02-28$5.06$7.62200
2019-02-27$5.06$7.623,200
2019-02-26$5.06$7.5114,600
2019-02-25$5.09$7.552,200
2019-02-22$5.10$7.5617,200
2019-02-21$5.01$7.432,800
2019-02-20$4.96$7.354,000
2019-02-19$4.97$7.3719,800
2019-02-15$4.78$7.0924,600
2019-02-14$4.76$7.079,800
2019-02-13$4.75$7.0520,200
2019-02-12$4.76$7.06600
2019-02-11$4.68$6.957,800
2019-02-08$4.71$6.994,200
2019-02-07$4.72$7.003,000
2019-02-06$4.71$6.983,600
2019-02-05$4.68$6.9445,400
2019-02-04$4.87$7.2210,000
2019-02-01$5.05$7.503,200
2019-01-31$4.91$7.284,200
2019-01-30$4.98$7.381,200
2019-01-29$5.10$7.56400
2019-01-28$4.98$7.3810,400
2019-01-25$4.80$7.1212,200
2019-01-24$4.86$7.211,800
2019-01-23$4.81$7.137,400
2019-01-22$4.97$7.383,400
2019-01-18$4.76$7.061,400
2019-01-17$4.79$7.115,000
2019-01-16$4.92$7.303,600
2019-01-15$4.82$7.153,200
2019-01-14$5.00$7.42400
2019-01-11$5.00$7.4216,800
2019-01-10$4.89$7.253,800
2019-01-09$4.90$7.274,000
2019-01-08$4.87$7.235,400
2019-01-07$4.77$7.071,000
2019-01-04$4.90$7.2715,800
2019-01-03$5.05$7.3819,000
2019-01-02$5.00$7.303,400