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 — 1982

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1982-12-31$6.10$6.105,324
1982-12-30$6.10$6.1010,116
1982-12-29$6.25$6.2517,569
1982-12-28$6.25$6.2514,907
1982-12-27$6.29$6.2919,166
1982-12-23$6.29$6.2910,382
1982-12-22$6.20$6.2049,513
1982-12-21$6.10$6.1010,382
1982-12-20$6.20$6.2019,166
1982-12-17$6.20$6.2014,375
1982-12-16$6.10$6.1018,634
1982-12-15$6.20$6.2055,370
1982-12-14$6.10$6.1030,879
1982-12-13$6.10$6.1032,743
1982-12-10$6.48$6.4844,988
1982-12-09$6.57$6.5777,464
1982-12-08$6.67$6.67498,593
1982-12-07$6.86$6.8640,729
1982-12-06$7.04$7.043,194
1982-12-03$7.04$7.04799
1982-12-02$7.04$7.043,993
1982-12-01$7.04$7.04799
1982-11-30$6.95$6.951,331
1982-11-29$7.04$7.0413,842
1982-11-26$7.04$7.043,727
1982-11-24$6.95$6.953,461
1982-11-23$6.95$6.954,525
1982-11-22$7.04$7.048,785
1982-11-19$7.14$7.146,655
1982-11-18$7.04$7.045,324
1982-11-17$7.04$7.047,720
1982-11-16$6.86$6.8624,757
1982-11-15$7.33$7.3312,511
1982-11-12$7.33$7.334,792
1982-11-11$7.33$7.3317,835
1982-11-10$7.14$7.1412,511
1982-11-09$7.04$7.043,727
1982-11-08$6.86$6.867,187
1982-11-05$6.86$6.8613,842
1982-11-04$6.95$6.958,252
1982-11-03$6.95$6.9547,384
1982-11-02$6.86$6.8628,750
1982-11-01$5.92$5.922,928
1982-10-29$5.92$5.926,655
1982-10-28$5.82$5.823,194
1982-10-27$5.82$5.822,396
1982-10-26$5.82$5.8211,447
1982-10-25$5.82$5.8222,893
1982-10-22$6.20$6.2018,634
1982-10-21$5.73$5.7343,657
1982-10-20$5.35$5.3516,238
1982-10-19$5.26$5.268,518
1982-10-18$5.17$5.1712,778
1982-10-15$5.17$5.1711,979
1982-10-14$5.26$5.266,921
1982-10-13$5.35$5.3511,447
1982-10-12$5.35$5.3521,030
1982-10-11$5.73$5.7311,979
1982-10-08$5.63$5.6324,757
1982-10-07$5.26$5.266,655
1982-10-06$5.17$5.1727,152
1982-10-05$4.70$4.707,720
1982-10-04$4.70$4.706,123
1982-10-01$4.41$4.412,928
1982-09-30$4.51$4.515,590
1982-09-29$4.70$4.7012,511
1982-09-28$4.79$4.798,252
1982-09-27$4.70$4.701,597
1982-09-24$4.70$4.703,993
1982-09-23$4.60$4.601,863
1982-09-22$4.60$4.606,921
1982-09-21$4.51$4.512,130
1982-09-20$4.41$4.415,324
1982-09-17$4.41$4.418,252
1982-09-16$4.74$4.748,518
1982-09-15$4.70$4.7010,648
1982-09-14$4.79$4.7916,238
1982-09-13$4.88$4.8827,685
1982-09-10$4.60$4.6021,296
1982-09-09$4.60$4.6022,361
1982-09-08$4.27$4.2712,245
1982-09-07$4.18$4.187,720
1982-09-03$4.18$4.1811,180
1982-09-02$4.09$4.0912,245
1982-09-01$4.04$4.0412,778
1982-08-31$4.13$4.1316,238
1982-08-30$4.04$4.0413,044
1982-08-27$3.94$3.949,849
1982-08-26$3.85$3.8510,116
1982-08-25$3.71$3.715,856
1982-08-24$3.62$3.625,590
1982-08-23$3.62$3.625,856
1982-08-20$3.57$3.57799
1982-08-19$3.57$3.575,058
1982-08-18$3.57$3.578,785
1982-08-17$3.47$3.478,518
1982-08-16$3.47$3.4712,245
1982-08-13$3.47$3.471,863
1982-08-12$3.47$3.473,993
1982-08-11$3.38$3.383,194
1982-08-10$3.38$3.384,259
1982-08-09$3.38$3.382,130
1982-08-06$3.57$3.57532
1982-08-05$3.57$3.571,331
1982-08-04$3.62$3.622,928
1982-08-03$3.66$3.666,389
1982-08-02$3.66$3.662,928
1982-07-30$3.62$3.623,194
1982-07-29$3.62$3.6212,511
1982-07-28$3.71$3.7120,764
1982-07-27$3.71$3.713,993
1982-07-26$3.71$3.711,597
1982-07-23$3.71$3.716,921
1982-07-22$3.66$3.6613,310
1982-07-21$3.47$3.4711,447
1982-07-20$3.47$3.473,993
1982-07-19$3.47$3.4716,504
1982-07-16$3.47$3.4715,173
1982-07-15$3.47$3.4723,692
1982-07-14$3.19$3.1910,648
1982-07-13$3.05$3.056,921
1982-07-12$3.01$3.0110,382
1982-07-09$3.01$3.012,928
1982-07-08$3.01$3.0119,433
1982-07-07$3.15$3.15532
1982-07-06$3.15$3.157,454
1982-07-02$3.24$3.245,324
1982-07-01$3.33$3.3310,382
1982-06-30$3.47$3.474,792
1982-06-29$3.47$3.473,993
1982-06-28$3.47$3.470
1982-06-25$3.47$3.471,331
1982-06-24$3.47$3.4710,116
1982-06-23$3.47$3.4711,713
1982-06-22$3.38$3.384,259
1982-06-21$3.38$3.3838,333
1982-06-18$3.38$3.387,986
1982-06-17$3.52$3.523,194
1982-06-16$3.57$3.5711,979
1982-06-15$3.66$3.665,058
1982-06-14$3.71$3.7111,979
1982-06-11$3.66$3.667,454
1982-06-10$3.57$3.574,259
1982-06-09$3.57$3.5718,900
1982-06-08$3.47$3.479,849
1982-06-07$3.47$3.4719,433
1982-06-04$3.33$3.3332,476
1982-06-03$3.19$3.19532
1982-06-02$3.19$3.191,065
1982-06-01$3.19$3.191,065
1982-05-28$3.19$3.19799
1982-05-27$3.19$3.198,785
1982-05-26$3.33$3.334,792
1982-05-25$3.43$3.439,051
1982-05-24$3.43$3.433,461
1982-05-21$3.43$3.430
1982-05-20$3.43$3.436,921
1982-05-19$3.43$3.43799
1982-05-18$3.43$3.435,856
1982-05-17$3.52$3.524,792
1982-05-14$3.52$3.52266
1982-05-13$3.52$3.528,518
1982-05-12$3.47$3.473,461
1982-05-11$3.47$3.4723,426
1982-05-10$3.62$3.6213,576
1982-05-07$3.76$3.7613,576
1982-05-06$3.85$3.8520,764
1982-05-05$3.85$3.8525,555
1982-05-04$3.66$3.6611,713
1982-05-03$3.57$3.575,856
1982-04-30$3.57$3.5718,900
1982-04-29$3.47$3.4733,275
1982-04-28$3.43$3.4310,914
1982-04-27$3.43$3.4329,814
1982-04-26$3.33$3.333,993
1982-04-23$3.33$3.333,461
1982-04-22$3.29$3.2911,180
1982-04-21$3.29$3.295,058
1982-04-20$3.29$3.2930,081
1982-04-19$3.29$3.2916,238
1982-04-16$3.05$3.0568,147
1982-04-15$3.01$3.012,130
1982-04-14$3.01$3.010
1982-04-13$3.01$3.010
1982-04-12$3.01$3.011,065
1982-04-08$3.01$3.01266
1982-04-07$3.01$3.017,720
1982-04-06$3.10$3.10532
1982-04-05$3.10$3.100
1982-04-02$3.10$3.10266
1982-04-01$3.10$3.100
1982-03-31$3.10$3.101,863
1982-03-30$3.10$3.100
1982-03-29$3.10$3.100
1982-03-26$3.10$3.101,331
1982-03-25$3.10$3.100
1982-03-24$3.10$3.102,130
1982-03-23$3.10$3.100
1982-03-22$3.10$3.10266
1982-03-19$3.10$3.101,863
1982-03-18$3.10$3.100
1982-03-17$3.10$3.101,863
1982-03-16$3.10$3.101,331
1982-03-15$3.10$3.102,130
1982-03-12$3.10$3.10799
1982-03-11$3.10$3.103,993
1982-03-10$3.10$3.102,662
1982-03-09$3.10$3.100
1982-03-08$3.10$3.102,130
1982-03-05$3.10$3.104,792
1982-03-04$3.10$3.108,518
1982-03-03$3.10$3.1010,116
1982-03-02$3.10$3.101,331
1982-03-01$3.10$3.103,194
1982-02-26$3.10$3.100
1982-02-25$3.10$3.106,389
1982-02-24$3.10$3.10799
1982-02-23$3.10$3.101,331
1982-02-22$3.10$3.101,863
1982-02-19$3.10$3.10799
1982-02-18$3.10$3.103,727
1982-02-17$3.10$3.102,130
1982-02-16$3.10$3.106,123
1982-02-12$3.10$3.103,993
1982-02-11$3.10$3.10799
1982-02-10$3.10$3.102,130
1982-02-09$3.10$3.107,986
1982-02-08$3.15$3.154,259
1982-02-05$3.10$3.103,993
1982-02-04$3.10$3.107,986
1982-02-03$3.10$3.1018,102
1982-02-02$3.10$3.1028,483
1982-02-01$3.10$3.1072,939
1982-01-29$3.15$3.15101,156