NASDAQ:SEIC | Historical Stock Price | SEI INVESTMENTS CO

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
1981-03-25 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.18$0.70$2.72$10.58$41.07$159.491981-03-252026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$20.97$22.28522,600
2004-12-30$21.05$22.31556,600
2004-12-29$21.25$22.53579,800
2004-12-28$21.31$22.59580,800
2004-12-27$21.00$22.26400,400
2004-12-23$21.32$22.61628,600
2004-12-22$20.93$22.19670,200
2004-12-21$21.17$22.44763,400
2004-12-20$20.94$22.20628,800
2004-12-17$21.15$22.421,052,200
2004-12-16$20.79$22.041,123,400
2004-12-15$21.28$22.56990,600
2004-12-14$21.55$22.841,021,200
2004-12-13$21.17$22.44801,600
2004-12-10$20.89$22.15634,800
2004-12-09$20.71$21.95538,000
2004-12-08$20.52$21.76896,200
2004-12-07$20.25$21.48834,000
2004-12-06$20.34$21.57699,000
2004-12-03$19.86$21.06608,000
2004-12-02$19.90$21.10788,000
2004-12-01$20.09$21.31766,000
2004-11-30$19.56$20.73998,400
2004-11-29$19.57$20.75739,000
2004-11-26$19.50$20.68150,600
2004-11-24$19.50$20.68397,800
2004-11-23$19.43$20.60719,400
2004-11-22$19.11$20.26993,600
2004-11-19$19.33$20.49662,600
2004-11-18$19.54$20.72697,600
2004-11-17$19.55$20.73806,600
2004-11-16$19.31$20.47929,200
2004-11-15$19.34$20.511,617,000
2004-11-12$19.52$20.701,413,600
2004-11-11$19.08$20.231,010,400
2004-11-10$19.07$20.221,391,200
2004-11-09$19.24$20.402,681,200
2004-11-08$19.65$20.841,094,600
2004-11-05$19.46$20.631,450,400
2004-11-04$19.05$20.201,335,800
2004-11-03$18.50$19.621,558,400
2004-11-02$17.95$19.03618,200
2004-11-01$17.76$18.831,036,600
2004-10-29$18.00$19.08613,200
2004-10-28$17.98$19.06849,400
2004-10-27$18.00$19.09658,200
2004-10-26$17.78$18.851,140,400
2004-10-25$17.55$18.61924,000
2004-10-22$17.23$18.27446,800
2004-10-21$17.50$18.56591,600
2004-10-20$17.25$18.291,115,600
2004-10-19$16.87$17.891,606,600
2004-10-18$16.88$17.89305,600
2004-10-15$16.93$17.95586,400
2004-10-14$16.68$17.69429,400
2004-10-13$16.85$17.87563,800
2004-10-12$17.19$18.23598,800
2004-10-11$17.35$18.40581,400
2004-10-08$17.27$18.31913,200
2004-10-07$17.53$18.59799,400
2004-10-06$17.68$18.751,056,400
2004-10-05$17.55$18.611,299,200
2004-10-04$17.50$18.56958,400
2004-10-01$17.31$18.35794,200
2004-09-30$16.84$17.86776,800
2004-09-29$17.01$18.04870,600
2004-09-28$16.81$17.82933,200
2004-09-27$16.31$17.291,057,400
2004-09-24$16.79$17.80561,000
2004-09-23$16.78$17.79884,400
2004-09-22$16.80$17.81832,200
2004-09-21$17.43$18.49689,400
2004-09-20$17.08$18.12599,600
2004-09-17$17.37$18.41575,600
2004-09-16$17.48$18.53708,600
2004-09-15$17.00$18.03478,800
2004-09-14$17.29$18.33717,800
2004-09-13$17.21$18.25737,200
2004-09-10$16.98$18.00424,000
2004-09-09$16.79$17.80843,600
2004-09-08$16.61$17.61434,600
2004-09-07$16.75$17.76693,800
2004-09-03$16.57$17.57746,400
2004-09-02$16.86$17.88422,600
2004-09-01$16.58$17.59775,000
2004-08-31$16.34$17.331,033,600
2004-08-30$15.86$16.81358,600
2004-08-27$15.97$16.93509,600
2004-08-26$16.06$17.02384,200
2004-08-25$16.25$17.23616,600
2004-08-24$15.93$16.89867,400
2004-08-23$15.89$16.85689,200
2004-08-20$16.11$17.08456,000
2004-08-19$16.00$16.97575,200
2004-08-18$15.93$16.89611,000
2004-08-17$15.53$16.46719,000
2004-08-16$15.52$16.46895,600
2004-08-13$15.01$15.91456,600
2004-08-12$14.93$15.83575,000
2004-08-11$15.23$16.14878,600
2004-08-10$15.23$16.14694,000
2004-08-09$14.90$15.801,187,600
2004-08-06$15.12$16.031,333,600
2004-08-05$15.35$16.27769,400
2004-08-04$15.50$16.43952,600
2004-08-03$15.64$16.581,063,600
2004-08-02$15.54$16.47747,200
2004-07-30$15.34$16.26807,000
2004-07-29$15.44$16.371,250,000
2004-07-28$15.21$16.13821,200
2004-07-27$15.53$16.46846,400
2004-07-26$15.18$16.09455,600
2004-07-23$15.30$16.22662,400
2004-07-22$15.38$16.311,454,000
2004-07-21$15.60$16.542,144,800
2004-07-20$15.85$16.811,309,000
2004-07-19$15.43$16.361,697,000
2004-07-16$14.72$15.60640,800
2004-07-15$14.87$15.772,388,800
2004-07-14$14.40$15.271,378,400
2004-07-13$14.42$15.291,236,600
2004-07-12$14.57$15.44993,400
2004-07-09$14.26$15.12878,400
2004-07-08$14.36$15.23891,400
2004-07-07$14.43$15.301,445,200
2004-07-06$14.35$15.21780,600
2004-07-02$14.74$15.62846,200
2004-07-01$14.58$15.46935,400
2004-06-30$14.52$15.401,357,200
2004-06-29$14.63$15.512,122,600
2004-06-28$14.40$15.271,438,400
2004-06-25$14.03$14.871,026,800
2004-06-24$14.01$14.85686,200
2004-06-23$13.89$14.721,526,200
2004-06-22$13.85$14.691,550,600
2004-06-21$13.70$14.53917,000
2004-06-18$13.73$14.551,200,800
2004-06-17$13.73$14.561,086,000
2004-06-16$13.79$14.621,029,400
2004-06-15$13.99$14.83624,800
2004-06-14$14.14$14.99705,800
2004-06-10$14.39$15.25540,200
2004-06-09$14.44$15.31652,000
2004-06-08$14.70$15.59832,600
2004-06-07$14.82$15.71530,200
2004-06-04$14.60$15.48682,200
2004-06-03$14.42$15.24700,800
2004-06-02$14.37$15.181,119,000
2004-06-01$14.44$15.261,695,200
2004-05-28$14.75$15.581,070,000
2004-05-27$14.71$15.54627,400
2004-05-26$14.58$15.41574,600
2004-05-25$14.45$15.27550,000
2004-05-24$14.26$15.06420,400
2004-05-21$14.23$15.03467,000
2004-05-20$14.27$15.08456,000
2004-05-19$14.22$15.02428,400
2004-05-18$14.29$15.09691,000
2004-05-17$14.22$15.03566,800
2004-05-14$14.37$15.18517,800
2004-05-13$14.32$15.13675,400
2004-05-12$14.50$15.321,328,000
2004-05-11$14.60$15.42418,200
2004-05-10$14.45$15.27931,000
2004-05-07$14.60$15.43789,200
2004-05-06$14.85$15.69786,200
2004-05-05$14.97$15.81775,600
2004-05-04$14.79$15.62700,400
2004-05-03$14.71$15.54740,800
2004-04-30$14.76$15.601,072,000
2004-04-29$14.89$15.731,484,400
2004-04-28$14.74$15.581,883,800
2004-04-27$15.02$15.871,664,400
2004-04-26$15.04$15.891,186,000
2004-04-23$14.97$15.811,915,400
2004-04-22$14.77$15.602,982,000
2004-04-21$14.63$15.452,098,800
2004-04-20$14.54$15.364,657,200
2004-04-19$15.13$15.982,075,800
2004-04-16$15.98$16.88544,600
2004-04-15$15.85$16.75855,600
2004-04-14$15.82$16.711,141,200
2004-04-13$15.89$16.79631,000
2004-04-12$16.21$17.12609,800
2004-04-08$16.10$17.01552,800
2004-04-07$16.20$17.12577,000
2004-04-06$16.32$17.241,107,400
2004-04-05$16.56$17.501,042,400
2004-04-02$16.70$17.651,258,200
2004-04-01$16.65$17.591,042,000
2004-03-31$16.50$17.431,608,600
2004-03-30$16.60$17.54905,000
2004-03-29$16.72$17.67990,400
2004-03-26$16.66$17.601,072,400
2004-03-25$16.74$17.691,762,800
2004-03-24$16.55$17.491,588,200
2004-03-23$16.67$17.61811,200
2004-03-22$16.57$17.511,592,400
2004-03-19$17.15$18.12612,000
2004-03-18$17.30$18.27763,200
2004-03-17$17.34$18.32763,800
2004-03-16$17.08$18.051,463,400
2004-03-15$16.96$17.921,796,400
2004-03-12$17.31$18.29529,800
2004-03-11$17.07$18.04740,400
2004-03-10$17.32$18.30798,600
2004-03-09$17.91$18.92937,800
2004-03-08$17.67$18.67979,800
2004-03-05$18.05$19.07778,600
2004-03-04$17.93$18.95368,800
2004-03-03$17.79$18.79637,000
2004-03-02$17.72$18.72893,800
2004-03-01$17.72$18.72730,600
2004-02-27$17.86$18.87847,400
2004-02-26$17.51$18.50778,200
2004-02-25$17.19$18.16289,000
2004-02-24$17.16$18.13607,400
2004-02-23$16.89$17.84764,600
2004-02-20$17.17$18.14548,000
2004-02-19$17.20$18.17544,400
2004-02-18$17.54$18.53875,800
2004-02-17$17.72$18.72891,400
2004-02-13$17.42$18.411,003,400
2004-02-12$17.36$18.34494,600
2004-02-11$17.50$18.49643,400
2004-02-10$17.23$18.20725,600
2004-02-09$17.11$18.07697,200
2004-02-06$16.98$17.94689,400
2004-02-05$16.67$17.611,062,800
2004-02-04$16.52$17.46854,200
2004-02-03$16.93$17.891,087,800
2004-02-02$17.12$18.092,815,000
2004-01-30$16.95$17.912,683,800
2004-01-29$16.00$16.911,285,400
2004-01-28$15.70$16.581,561,800
2004-01-27$15.94$16.84848,400
2004-01-26$16.11$17.02833,600
2004-01-23$15.85$16.751,129,000
2004-01-22$16.23$17.14907,200
2004-01-21$16.51$17.452,118,000
2004-01-20$15.94$16.841,139,200
2004-01-16$16.04$16.951,493,400
2004-01-15$15.78$16.673,616,600
2004-01-14$16.38$17.30916,000
2004-01-13$16.19$17.11913,800
2004-01-12$16.41$17.341,322,200
2004-01-09$15.93$16.83769,800
2004-01-08$16.04$16.95948,400
2004-01-07$16.03$16.93743,600
2004-01-06$15.94$16.841,232,600
2004-01-05$15.77$16.661,282,000
2004-01-02$15.15$16.00848,600