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 — 1992

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1992-12-31$3.94$3.944,525——
1992-12-30$3.85$3.854,525——
1992-12-29$3.90$3.900——
1992-12-28$3.90$3.902,130——
1992-12-24$4.04$4.042,396——
1992-12-23$3.90$3.9011,447——
1992-12-22$3.80$3.806,389——
1992-12-21$4.04$4.047,720——
1992-12-18$3.85$3.8520,231——
1992-12-17$4.04$4.041,863——
1992-12-16$3.94$3.9452,175——
1992-12-15$3.85$3.8548,981——
1992-12-14$3.80$3.8033,807——
1992-12-11$4.04$4.0417,303——
1992-12-10$3.76$3.7623,159——
1992-12-09$4.04$4.04109,941——
1992-12-08$3.94$3.94322,102——
1992-12-07$4.51$4.51171,699——
1992-12-04$4.27$4.27437,100——
1992-12-03$3.66$3.66237,983——
1992-12-02$3.66$3.6688,911——
1992-12-01$3.76$3.769,849——
1992-11-30$3.57$3.5731,678——
1992-11-27$3.76$3.762,130——
1992-11-25$3.62$3.625,058——
1992-11-24$3.62$3.6257,233——
1992-11-23$3.76$3.7610,116——
1992-11-20$3.47$3.4746,053——
1992-11-19$3.57$3.5712,778——
1992-11-18$3.62$3.6211,979——
1992-11-17$3.62$3.6260,960——
1992-11-16$3.57$3.5743,391——
1992-11-13$3.47$3.477,454——
1992-11-12$3.43$3.4354,837——
1992-11-11$3.66$3.668,252——
1992-11-10$3.52$3.5222,627——
1992-11-09$3.57$3.5730,347——
1992-11-06$3.57$3.5710,648——
1992-11-05$3.57$3.5739,398——
1992-11-04$3.57$3.5726,886——
1992-11-03$3.29$3.29111,538——
1992-11-02$3.01$3.0126,088——
1992-10-30$3.10$3.10120,855——
1992-10-29$3.10$3.1016,504——
1992-10-28$3.10$3.1076,399——
1992-10-27$3.01$3.015,856——
1992-10-26$2.72$2.721,597——
1992-10-23$2.91$2.9118,900——
1992-10-22$2.96$2.9621,562——
1992-10-21$2.91$2.9137,002——
1992-10-20$2.82$2.8213,310——
1992-10-19$2.72$2.7221,296——
1992-10-16$2.77$2.7710,648——
1992-10-15$2.68$2.68116,063——
1992-10-14$2.86$2.862,662——
1992-10-13$2.77$2.773,194——
1992-10-12$2.72$2.720——
1992-10-09$2.72$2.72266——
1992-10-08$2.86$2.8643,391——
1992-10-07$2.72$2.7227,685——
1992-10-06$2.72$2.7224,757——
1992-10-05$2.82$2.8240,196——
1992-10-02$2.72$2.727,986——
1992-10-01$2.77$2.771,331——
1992-09-30$2.77$2.772,662——
1992-09-29$2.77$2.775,058——
1992-09-28$3.01$3.01532——
1992-09-25$3.01$3.01532——
1992-09-24$2.77$2.77799——
1992-09-23$2.82$2.820——
1992-09-22$2.82$2.823,993——
1992-09-21$2.82$2.825,324——
1992-09-18$2.82$2.8211,979——
1992-09-17$2.63$2.634,259——
1992-09-16$2.68$2.6830,347——
1992-09-15$2.63$2.635,856——
1992-09-14$2.63$2.6352,974——
1992-09-11$2.82$2.820——
1992-09-10$2.82$2.825,590——
1992-09-09$2.91$2.915,324——
1992-09-08$2.86$2.860——
1992-09-04$2.86$2.8619,433——
1992-09-03$2.82$2.8210,116——
1992-09-02$2.96$2.969,317——
1992-09-01$2.82$2.822,928——
1992-08-31$3.01$3.010——
1992-08-28$3.01$3.0110,648——
1992-08-27$2.82$2.820——
1992-08-26$2.82$2.822,662——
1992-08-25$3.01$3.010——
1992-08-24$3.01$3.019,583——
1992-08-21$3.10$3.100——
1992-08-20$3.10$3.1012,245——
1992-08-19$3.05$3.055,856——
1992-08-18$3.19$3.192,928——
1992-08-17$3.19$3.190——
1992-08-14$3.19$3.190——
1992-08-13$3.19$3.19266——
1992-08-12$2.91$2.9113,310——
1992-08-11$3.19$3.19266——
1992-08-10$3.19$3.19532——
1992-08-07$3.19$3.190——
1992-08-06$3.19$3.19266——
1992-08-05$3.01$3.0116,504——
1992-08-04$3.01$3.01266——
1992-08-03$3.01$3.01532——
1992-07-31$3.15$3.152,130——
1992-07-30$3.10$3.100——
1992-07-29$3.10$3.106,123——
1992-07-28$3.10$3.1063,356——
1992-07-27$3.10$3.100——
1992-07-24$3.10$3.1011,979——
1992-07-23$3.19$3.19266——
1992-07-22$2.91$2.91266——
1992-07-21$3.19$3.190——
1992-07-20$3.19$3.190——
1992-07-17$3.19$3.190——
1992-07-16$3.19$3.19266——
1992-07-15$3.05$3.0514,109——
1992-07-14$3.10$3.1074,270——
1992-07-13$3.10$3.10799——
1992-07-10$3.29$3.2944,189——
1992-07-09$3.24$3.244,525——
1992-07-08$3.47$3.47266——
1992-07-07$3.38$3.3845,786——
1992-07-06$3.47$3.47532——
1992-07-02$3.38$3.385,324——
1992-07-01$3.33$3.330——
1992-06-30$3.33$3.335,324——
1992-06-29$3.47$3.470——
1992-06-26$3.47$3.471,065——
1992-06-25$3.47$3.470——
1992-06-24$3.47$3.470——
1992-06-23$3.47$3.470——
1992-06-22$3.47$3.473,194——
1992-06-19$3.47$3.475,590——
1992-06-18$3.43$3.430——
1992-06-17$3.43$3.4327,951——
1992-06-16$3.38$3.382,662——
1992-06-15$3.43$3.43799——
1992-06-12$3.57$3.573,727——
1992-06-11$3.57$3.5721,030——
1992-06-10$3.38$3.38799——
1992-06-09$3.57$3.57266——
1992-06-08$3.43$3.432,662——
1992-06-05$3.57$3.57799——
1992-06-04$3.43$3.4361,226——
1992-06-03$3.38$3.389,849——
1992-06-02$3.57$3.571,331——
1992-06-01$3.52$3.5211,447——
1992-05-29$3.62$3.62266——
1992-05-28$3.47$3.4711,713——
1992-05-27$3.38$3.380——
1992-05-26$3.38$3.38799——
1992-05-22$3.38$3.387,454——
1992-05-21$3.47$3.476,123——
1992-05-20$3.38$3.385,324——
1992-05-19$3.57$3.573,993——
1992-05-18$3.47$3.470——
1992-05-15$3.47$3.470——
1992-05-14$3.47$3.479,317——
1992-05-13$3.47$3.471,863——
1992-05-12$3.57$3.57266——
1992-05-11$3.57$3.570——
1992-05-08$3.57$3.571,065——
1992-05-07$3.38$3.386,921——
1992-05-06$3.38$3.3855,902——
1992-05-05$3.38$3.388,785——
1992-05-04$3.57$3.572,662——
1992-05-01$3.57$3.573,194——
1992-04-30$3.76$3.7634,340——
1992-04-29$3.38$3.38266——
1992-04-28$3.29$3.2926,886——
1992-04-27$3.19$3.190——
1992-04-24$3.19$3.191,863——
1992-04-23$3.19$3.19799——
1992-04-22$3.10$3.1013,842——
1992-04-21$3.29$3.298,785——
1992-04-20$3.15$3.1510,648——
1992-04-16$3.29$3.2911,979——
1992-04-15$3.19$3.195,856——
1992-04-14$3.29$3.29266——
1992-04-13$3.19$3.1913,044——
1992-04-10$3.29$3.2910,914——
1992-04-09$3.10$3.104,259——
1992-04-08$3.38$3.3850,844——
1992-04-07$3.47$3.473,727——
1992-04-06$3.52$3.520——
1992-04-03$3.52$3.520——
1992-04-02$3.52$3.5214,375——
1992-04-01$3.47$3.473,727——
1992-03-31$3.47$3.472,130——
1992-03-30$3.47$3.472,662——
1992-03-27$3.52$3.5218,634——
1992-03-26$3.76$3.7629,016——
1992-03-25$3.71$3.7134,606——
1992-03-24$3.52$3.5227,951——
1992-03-23$3.76$3.7628,483——
1992-03-20$3.52$3.5230,081——
1992-03-19$3.57$3.5727,685——
1992-03-18$3.62$3.6233,807——
1992-03-17$3.66$3.6676,666——
1992-03-16$3.38$3.385,324——
1992-03-13$3.47$3.47266——
1992-03-12$3.19$3.193,993——
1992-03-11$3.47$3.471,597——
1992-03-10$3.43$3.436,123——
1992-03-09$3.47$3.471,597——
1992-03-06$3.19$3.191,331——
1992-03-05$3.47$3.475,324——
1992-03-04$3.38$3.385,058——
1992-03-03$3.38$3.3821,030——
1992-03-02$3.43$3.433,461——
1992-02-28$3.38$3.3812,245——
1992-02-27$3.38$3.3830,081——
1992-02-26$3.38$3.381,863——
1992-02-25$3.38$3.38799——
1992-02-24$3.43$3.437,986——
1992-02-21$3.43$3.430——
1992-02-20$3.43$3.4332,743——
1992-02-19$3.29$3.294,525——
1992-02-18$3.57$3.570——
1992-02-14$3.57$3.5724,757——
1992-02-13$3.57$3.578,518——
1992-02-12$3.57$3.570——
1992-02-11$3.57$3.571,065——
1992-02-10$3.66$3.66799——
1992-02-07$3.38$3.3812,778——
1992-02-06$3.57$3.575,324——
1992-02-05$3.57$3.5713,310——
1992-02-04$3.57$3.575,590——
1992-02-03$3.29$3.297,720——
1992-01-31$3.66$3.6620,764——
1992-01-30$3.62$3.625,324——
1992-01-29$3.66$3.662,396——
1992-01-28$3.66$3.666,389——
1992-01-27$3.52$3.5223,426——
1992-01-24$3.71$3.714,259——
1992-01-23$3.71$3.71799——
1992-01-22$3.66$3.662,662——
1992-01-21$3.47$3.4710,648——
1992-01-20$3.57$3.5717,037——
1992-01-17$3.76$3.767,986——
1992-01-16$3.76$3.76177,023——
1992-01-15$3.76$3.7647,916——
1992-01-14$3.47$3.4748,981——
1992-01-13$3.15$3.156,389——
1992-01-10$3.05$3.0510,382——
1992-01-09$3.01$3.0129,282——
1992-01-08$2.96$2.9613,310——
1992-01-07$2.91$2.911,065——
1992-01-06$3.01$3.018,518——
1992-01-03$3.05$3.0533,807——
1992-01-02$3.05$3.05266——