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 — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2011-12-30$1.61$1.6138,800——
2011-12-29$1.63$1.634,800——
2011-12-28$1.67$1.6710,600——
2011-12-27$1.75$1.751,600——
2011-12-23$1.73$1.722,200——
2011-12-22$1.71$1.718,600——
2011-12-21$1.70$1.704,000——
2011-12-20$1.65$1.6519,600——
2011-12-19$1.70$1.700——
2011-12-16$1.70$1.702,000——
2011-12-15$1.70$1.702,400——
2011-12-14$1.73$1.727,800——
2011-12-13$1.69$1.6937,800——
2011-12-12$1.71$1.710——
2011-12-09$1.71$1.712,400——
2011-12-08$1.69$1.694,600——
2011-12-07$1.69$1.696,000——
2011-12-06$1.74$1.743,600——
2011-12-05$1.74$1.747,600——
2011-12-02$1.75$1.750——
2011-12-01$1.75$1.750——
2011-11-30$1.75$1.754,400——
2011-11-29$1.75$1.754,800——
2011-11-28$1.71$1.710——
2011-11-25$1.71$1.710——
2011-11-23$1.71$1.7113,800——
2011-11-22$1.73$1.730——
2011-11-21$1.73$1.7344,200——
2011-11-18$1.66$1.650——
2011-11-17$1.66$1.651,200——
2011-11-16$1.69$1.69400——
2011-11-15$1.75$1.753,000——
2011-11-14$1.74$1.740——
2011-11-11$1.74$1.744,000——
2011-11-10$1.70$1.700——
2011-11-09$1.70$1.700——
2011-11-08$1.70$1.70800——
2011-11-07$1.70$1.704,600——
2011-11-04$1.75$1.750——
2011-11-03$1.75$1.750——
2011-11-02$1.75$1.751,400——
2011-11-01$1.72$1.722,600——
2011-10-31$1.75$1.75400——
2011-10-28$1.69$1.690——
2011-10-27$1.69$1.690——
2011-10-26$1.69$1.690——
2011-10-25$1.69$1.690——
2011-10-24$1.69$1.691,200——
2011-10-21$1.66$1.66200——
2011-10-20$1.69$1.690——
2011-10-19$1.69$1.690——
2011-10-18$1.69$1.697,600——
2011-10-17$1.75$1.751,000——
2011-10-14$1.75$1.756,600——
2011-10-13$1.73$1.727,400——
2011-10-12$1.79$1.783,000——
2011-10-11$1.70$1.708,400——
2011-10-10$1.78$1.789,000——
2011-10-07$1.75$1.75800——
2011-10-06$1.63$1.630——
2011-10-05$1.63$1.630——
2011-10-04$1.63$1.6311,200——
2011-10-03$1.67$1.6715,600——
2011-09-30$1.75$1.750——
2011-09-29$1.75$1.751,600——
2011-09-28$1.79$1.78800——
2011-09-27$1.79$1.7914,600——
2011-09-26$1.76$1.762,800——
2011-09-23$1.75$1.7583,400——
2011-09-22$1.73$1.725,200——
2011-09-21$1.80$1.803,000——
2011-09-20$1.87$1.871,000——
2011-09-19$1.85$1.851,200——
2011-09-16$1.86$1.861,800——
2011-09-15$1.82$1.820——
2011-09-14$1.82$1.824,200——
2011-09-13$1.71$1.718,800——
2011-09-12$1.69$1.6910,200——
2011-09-09$1.75$1.754,800——
2011-09-08$1.71$1.716,600——
2011-09-07$1.73$1.738,400——
2011-09-06$1.67$1.664,000——
2011-09-02$1.71$1.715,800——
2011-09-01$1.72$1.729,800——
2011-08-31$1.75$1.757,800——
2011-08-30$1.72$1.72800——
2011-08-29$1.71$1.71200——
2011-08-26$1.74$1.740——
2011-08-25$1.74$1.749,200——
2011-08-24$1.75$1.756,400——
2011-08-23$1.68$1.680——
2011-08-22$1.68$1.6834,000——
2011-08-19$1.75$1.7514,600——
2011-08-18$1.80$1.8012,400——
2011-08-17$1.81$1.8122,200——
2011-08-16$1.86$1.862,000——
2011-08-15$1.85$1.853,400——
2011-08-12$1.94$1.940——
2011-08-11$1.94$1.94600——
2011-08-10$1.93$1.9313,600——
2011-08-09$1.95$1.954,400——
2011-08-08$1.85$1.846,600——
2011-08-05$1.92$1.9222,000——
2011-08-04$1.83$1.8216,800——
2011-08-03$1.95$1.9526,000——
2011-08-02$2.08$2.082,600——
2011-08-01$2.07$2.06800——
2011-07-29$2.08$2.081,800——
2011-07-28$2.10$2.101,200——
2011-07-27$2.07$2.0637,200——
2011-07-26$2.13$2.128,600——
2011-07-25$2.15$2.145,000——
2011-07-22$2.15$2.153,000——
2011-07-21$2.18$2.171,200——
2011-07-20$2.17$2.173,000——
2011-07-19$2.20$2.2019,800——
2011-07-18$2.26$2.260——
2011-07-15$2.26$2.267,400——
2011-07-14$2.23$2.222,600——
2011-07-13$2.16$2.160——
2011-07-12$2.16$2.163,400——
2011-07-11$2.15$2.158,600——
2011-07-08$2.20$2.201,000——
2011-07-07$2.16$2.151,400——
2011-07-06$2.16$2.160——
2011-07-05$2.16$2.16200——
2011-07-01$2.18$2.180——
2011-06-30$2.18$2.180——
2011-06-29$2.18$2.181,800——
2011-06-28$2.18$2.170——
2011-06-27$2.18$2.17600——
2011-06-24$2.23$2.233,200——
2011-06-23$2.22$2.223,000——
2011-06-22$2.19$2.191,200——
2011-06-21$2.24$2.247,000——
2011-06-20$2.17$2.174,400——
2011-06-17$2.17$2.177,400——
2011-06-16$2.05$2.0528,000——
2011-06-15$2.10$2.107,600——
2011-06-14$2.10$2.1014,600——
2011-06-13$2.14$2.148,000——
2011-06-10$2.19$2.199,600——
2011-06-09$2.17$2.166,400——
2011-06-08$2.18$2.177,200——
2011-06-07$2.18$2.176,200——
2011-06-06$2.19$2.194,600——
2011-06-03$2.23$2.2310,000——
2011-06-02$2.22$2.227,400——
2011-06-01$2.18$2.17800——
2011-05-31$2.22$2.226,200——
2011-05-27$2.21$2.2114,400——
2011-05-26$2.21$2.217,600——
2011-05-25$2.19$2.196,000——
2011-05-24$2.22$2.224,200——
2011-05-23$2.20$2.202,200——
2011-05-20$2.19$2.1919,200——
2011-05-19$2.25$2.252,800——
2011-05-18$2.26$2.268,400——
2011-05-17$2.26$2.2615,600——
2011-05-16$2.26$2.266,200——
2011-05-13$2.28$2.276,600——
2011-05-12$2.30$2.291,000——
2011-05-11$2.27$2.277,600——
2011-05-10$2.29$2.2914,400——
2011-05-09$2.30$2.306,000——
2011-05-06$2.31$2.3111,400——
2011-05-05$2.35$2.3424,200——
2011-05-04$2.35$2.3484,800——
2011-05-03$2.38$2.3819,600——
2011-05-02$2.42$2.4222,000——
2011-04-29$2.38$2.388,800——
2011-04-28$2.41$2.4110,200——
2011-04-27$2.38$2.3811,000——
2011-04-26$2.41$2.4129,200——
2011-04-25$2.38$2.3855,000——
2011-04-21$2.38$2.3813,200——
2011-04-20$2.34$2.349,800——
2011-04-19$2.37$2.374,000——
2011-04-18$2.30$2.309,000——
2011-04-15$2.38$2.3815,600——
2011-04-14$2.38$2.3815,600——
2011-04-13$2.38$2.385,200——
2011-04-12$2.37$2.3713,400——
2011-04-11$2.34$2.3411,800——
2011-04-08$2.32$2.3213,400——
2011-04-07$2.35$2.349,400——
2011-04-06$2.30$2.3015,000——
2011-04-05$2.33$2.334,200——
2011-04-04$2.32$2.3217,800——
2011-04-01$2.29$2.2916,200——
2011-03-31$2.29$2.295,800——
2011-03-30$2.30$2.2924,800——
2011-03-29$2.21$2.215,000——
2011-03-28$2.18$2.1816,800——
2011-03-25$2.15$2.143,800——
2011-03-24$2.17$2.172,200——
2011-03-23$2.17$2.1713,200——
2011-03-22$2.16$2.15400——
2011-03-21$2.13$2.1212,000——
2011-03-18$2.13$2.127,400——
2011-03-17$2.13$2.127,400——
2011-03-16$2.10$2.100——
2011-03-15$2.10$2.1013,800——
2011-03-14$2.12$2.123,600——
2011-03-11$2.13$2.121,200——
2011-03-10$2.13$2.1223,400——
2011-03-09$2.17$2.1610,800——
2011-03-08$2.14$2.1427,400——
2011-03-07$2.13$2.1319,000——
2011-03-04$2.13$2.136,400——
2011-03-03$2.19$2.194,200——
2011-03-02$2.15$2.158,800——
2011-03-01$2.13$2.1211,800——
2011-02-28$2.06$2.0612,200——
2011-02-25$2.12$2.128,400——
2011-02-24$2.09$2.097,600——
2011-02-23$2.03$2.0349,200——
2011-02-22$2.09$2.0922,400——
2011-02-18$2.16$2.1611,400——
2011-02-17$2.21$2.2113,800——
2011-02-16$2.21$2.215,800——
2011-02-15$2.20$2.203,200——
2011-02-14$2.19$2.1932,400——
2011-02-11$2.23$2.2252,400——
2011-02-10$2.19$2.1932,600——
2011-02-09$2.14$2.14104,400——
2011-02-08$2.15$2.15199,200——
2011-02-07$2.00$2.0024,400——
2011-02-04$1.93$1.9319,000——
2011-02-03$1.95$1.951,600——
2011-02-02$1.95$1.951,000——
2011-02-01$2.00$2.006,200——
2011-01-31$1.98$1.987,000——
2011-01-28$1.97$1.9723,200——
2011-01-27$1.98$1.9812,600——
2011-01-26$1.97$1.9730,400——
2011-01-25$1.98$1.9812,000——
2011-01-24$1.98$1.988,000——
2011-01-21$1.94$1.936,200——
2011-01-20$1.98$1.980——
2011-01-19$1.98$1.984,000——
2011-01-18$1.99$1.9910,600——
2011-01-14$2.00$1.992,200——
2011-01-13$2.00$1.998,200——
2011-01-12$1.98$1.9852,800——
2011-01-11$2.05$2.0512,400——
2011-01-10$2.05$2.054,000——
2011-01-07$2.01$2.0116,600——
2011-01-06$2.04$2.046,400——
2011-01-05$2.08$2.087,200——
2011-01-04$1.96$1.9613,400——
2011-01-03$1.92$1.9218,800——