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 — 1993

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1993-12-31$3.19$3.1919,166
1993-12-30$3.47$3.47799
1993-12-29$3.47$3.470
1993-12-28$3.47$3.4723,426
1993-12-27$3.29$3.292,130
1993-12-23$3.19$3.195,856
1993-12-22$3.38$3.38172,498
1993-12-21$3.38$3.3857,499
1993-12-20$3.38$3.389,051
1993-12-17$3.43$3.437,986
1993-12-16$3.38$3.3852,175
1993-12-15$3.62$3.6244,988
1993-12-14$3.76$3.7678,795
1993-12-13$3.66$3.66532
1993-12-10$3.66$3.662,396
1993-12-09$3.94$3.9414,641
1993-12-08$3.94$3.944,259
1993-12-07$3.94$3.942,928
1993-12-06$3.94$3.94266
1993-12-03$3.66$3.6610,914
1993-12-02$3.94$3.94266
1993-12-01$3.66$3.661,863
1993-11-30$3.85$3.85532
1993-11-29$3.66$3.667,454
1993-11-26$3.66$3.661,597
1993-11-24$3.94$3.944,259
1993-11-23$3.80$3.808,518
1993-11-22$3.80$3.803,727
1993-11-19$3.66$3.665,590
1993-11-18$3.94$3.9410,648
1993-11-17$3.94$3.9440,995
1993-11-16$3.85$3.859,583
1993-11-15$4.04$4.0435,405
1993-11-12$3.90$3.9018,900
1993-11-11$3.85$3.854,259
1993-11-10$3.85$3.857,986
1993-11-09$3.85$3.855,324
1993-11-08$3.85$3.852,130
1993-11-05$3.76$3.760
1993-11-04$3.76$3.7657,233
1993-11-03$3.76$3.7637,002
1993-11-02$4.13$4.1324,757
1993-11-01$4.04$4.0418,634
1993-10-29$3.76$3.7624,490
1993-10-28$3.94$3.9410,382
1993-10-27$3.80$3.8087,314
1993-10-26$3.76$3.7660,694
1993-10-25$3.94$3.949,849
1993-10-22$3.94$3.9437,268
1993-10-21$3.99$3.99246,767
1993-10-20$3.85$3.8585,716
1993-10-19$3.57$3.5715,706
1993-10-18$3.38$3.3869,212
1993-10-15$3.33$3.3311,713
1993-10-14$3.19$3.195,324
1993-10-13$3.33$3.333,194
1993-10-12$3.47$3.470
1993-10-11$3.47$3.471,065
1993-10-08$3.47$3.472,662
1993-10-07$3.29$3.29799
1993-10-06$3.19$3.190
1993-10-05$3.19$3.19266
1993-10-04$3.19$3.199,849
1993-10-01$3.38$3.381,863
1993-09-30$3.19$3.198,785
1993-09-29$3.38$3.3814,375
1993-09-28$3.29$3.296,655
1993-09-27$3.19$3.197,720
1993-09-24$3.38$3.385,324
1993-09-23$3.38$3.3811,447
1993-09-22$3.47$3.470
1993-09-21$3.47$3.476,655
1993-09-20$3.57$3.57266
1993-09-17$3.57$3.57532
1993-09-16$3.43$3.433,727
1993-09-15$3.57$3.572,662
1993-09-14$3.38$3.383,194
1993-09-13$3.57$3.570
1993-09-10$3.57$3.57799
1993-09-09$3.57$3.5741,261
1993-09-08$3.47$3.471,863
1993-09-07$3.57$3.5714,641
1993-09-03$3.47$3.4729,282
1993-09-02$3.47$3.4721,030
1993-09-01$3.47$3.47266
1993-08-31$3.76$3.767,720
1993-08-30$3.47$3.470
1993-08-27$3.47$3.473,461
1993-08-26$3.57$3.570
1993-08-25$3.57$3.575,058
1993-08-24$3.47$3.476,921
1993-08-23$3.66$3.6613,842
1993-08-20$3.66$3.6616,504
1993-08-19$3.66$3.663,194
1993-08-18$3.71$3.7113,310
1993-08-17$3.85$3.8515,440
1993-08-16$3.66$3.6618,102
1993-08-13$3.94$3.946,655
1993-08-12$3.66$3.6639,930
1993-08-11$3.85$3.8517,835
1993-08-10$3.66$3.66532
1993-08-09$3.66$3.66532
1993-08-06$3.66$3.66532
1993-08-05$3.71$3.7112,511
1993-08-04$3.85$3.855,856
1993-08-03$3.71$3.7153,240
1993-08-02$3.66$3.664,792
1993-07-30$3.76$3.7610,648
1993-07-29$3.85$3.85532
1993-07-28$3.76$3.7646,585
1993-07-27$3.76$3.7647,384
1993-07-26$3.94$3.94128,042
1993-07-23$3.80$3.8015,440
1993-07-22$3.94$3.9432,210
1993-07-21$3.94$3.9416,771
1993-07-20$3.85$3.8510,914
1993-07-19$3.94$3.9499,559
1993-07-16$3.57$3.575,590
1993-07-15$3.47$3.470
1993-07-14$3.47$3.472,662
1993-07-13$3.57$3.574,525
1993-07-12$3.52$3.5228,750
1993-07-09$3.62$3.620
1993-07-08$3.62$3.62122,718
1993-07-07$3.71$3.7153,506
1993-07-06$3.57$3.5746,585
1993-07-02$3.57$3.576,389
1993-07-01$3.47$3.477,454
1993-06-30$3.66$3.6611,979
1993-06-29$3.47$3.4720,497
1993-06-28$3.38$3.387,187
1993-06-25$3.38$3.38532
1993-06-24$3.62$3.62532
1993-06-23$3.38$3.3813,044
1993-06-22$3.43$3.431,331
1993-06-21$3.43$3.430
1993-06-18$3.43$3.432,662
1993-06-17$3.43$3.432,928
1993-06-16$3.57$3.571,331
1993-06-15$3.43$3.435,590
1993-06-14$3.57$3.573,993
1993-06-11$3.52$3.520
1993-06-10$3.52$3.525,856
1993-06-09$3.43$3.431,331
1993-06-08$3.57$3.570
1993-06-07$3.57$3.571,331
1993-06-04$3.52$3.5259,895
1993-06-03$3.76$3.7611,180
1993-06-02$3.52$3.525,324
1993-06-01$3.76$3.760
1993-05-28$3.76$3.761,863
1993-05-27$3.52$3.523,461
1993-05-26$3.52$3.5210,648
1993-05-25$3.76$3.764,792
1993-05-24$3.47$3.47799
1993-05-21$3.47$3.474,259
1993-05-20$3.47$3.471,331
1993-05-19$3.43$3.432,928
1993-05-18$3.57$3.5719,699
1993-05-17$3.43$3.437,986
1993-05-14$3.43$3.439,849
1993-05-13$3.47$3.4793,436
1993-05-12$3.43$3.4339,398
1993-05-11$3.38$3.3821,296
1993-05-10$3.47$3.470
1993-05-07$3.47$3.4714,907
1993-05-06$3.38$3.383,993
1993-05-05$3.33$3.33532
1993-05-04$3.33$3.3314,907
1993-05-03$3.33$3.33532
1993-04-30$3.38$3.383,194
1993-04-29$3.47$3.470
1993-04-28$3.47$3.471,065
1993-04-27$3.43$3.435,856
1993-04-26$3.38$3.3873,205
1993-04-23$3.47$3.475,856
1993-04-22$3.57$3.570
1993-04-21$3.57$3.575,856
1993-04-20$3.47$3.474,259
1993-04-19$3.66$3.6616,504
1993-04-16$3.76$3.764,792
1993-04-15$3.57$3.571,597
1993-04-14$3.66$3.6617,835
1993-04-13$3.47$3.475,590
1993-04-12$3.66$3.660
1993-04-08$3.66$3.6632,476
1993-04-07$3.38$3.3866,816
1993-04-06$3.38$3.3859,629
1993-04-05$3.71$3.7110,648
1993-04-02$3.66$3.6662,025
1993-04-01$3.71$3.715,856
1993-03-31$3.66$3.6610,914
1993-03-30$3.76$3.7679,860
1993-03-29$3.76$3.7624,490
1993-03-26$3.94$3.9432,743
1993-03-25$3.76$3.7653,240
1993-03-24$3.76$3.76145,345
1993-03-23$3.85$3.85176,757
1993-03-22$3.94$3.9499,293
1993-03-19$3.85$3.85134,431
1993-03-18$3.85$3.8563,888
1993-03-17$3.90$3.90163,713
1993-03-16$3.94$3.94174,095
1993-03-15$3.71$3.71132,834
1993-03-12$3.76$3.761,597
1993-03-11$3.52$3.526,123
1993-03-10$3.47$3.4714,375
1993-03-09$3.66$3.661,331
1993-03-08$3.47$3.4715,173
1993-03-05$3.47$3.4710,116
1993-03-04$3.43$3.4314,641
1993-03-03$3.57$3.57248,365
1993-03-02$3.62$3.6214,109
1993-03-01$3.66$3.6614,375
1993-02-26$3.66$3.6627,685
1993-02-25$3.80$3.8021,562
1993-02-24$3.76$3.7619,166
1993-02-23$3.76$3.762,130
1993-02-22$3.76$3.7619,699
1993-02-19$3.76$3.762,130
1993-02-18$3.80$3.805,058
1993-02-17$3.76$3.7615,972
1993-02-16$4.04$4.0479,594
1993-02-12$4.04$4.040
1993-02-11$4.04$4.042,662
1993-02-10$3.94$3.944,792
1993-02-09$3.94$3.9455,103
1993-02-08$4.13$4.1336,469
1993-02-05$4.23$4.2339,131
1993-02-04$4.23$4.2340,196
1993-02-03$4.04$4.0432,743
1993-02-02$4.13$4.1319,433
1993-02-01$4.04$4.046,389
1993-01-29$4.13$4.1318,900
1993-01-28$4.04$4.0425,023
1993-01-27$4.09$4.0959,895
1993-01-26$4.18$4.1822,893
1993-01-25$4.23$4.2377,464
1993-01-22$4.13$4.1327,951
1993-01-21$4.04$4.0427,951
1993-01-20$3.85$3.8518,368
1993-01-19$3.66$3.663,993
1993-01-18$3.76$3.766,921
1993-01-15$3.71$3.716,389
1993-01-14$3.66$3.663,727
1993-01-13$3.66$3.6632,743
1993-01-12$3.66$3.66532
1993-01-11$3.66$3.6613,576
1993-01-08$3.66$3.6612,778
1993-01-07$3.66$3.6611,180
1993-01-06$3.76$3.7615,173
1993-01-05$3.94$3.946,389
1993-01-04$4.04$4.048,785