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 — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$22.56$23.591,198,000
2001-12-28$22.76$23.80599,000
2001-12-27$22.67$23.71906,000
2001-12-26$22.23$23.251,016,400
2001-12-24$22.14$23.15965,800
2001-12-21$22.05$23.061,739,400
2001-12-20$21.78$22.77900,800
2001-12-19$22.05$23.051,245,600
2001-12-18$22.01$23.021,383,400
2001-12-17$21.88$22.87672,800
2001-12-14$21.71$22.70905,800
2001-12-13$21.43$22.411,571,400
2001-12-12$21.42$22.391,075,800
2001-12-11$21.28$22.251,352,200
2001-12-10$21.36$22.34841,200
2001-12-07$21.88$22.88534,000
2001-12-06$22.25$23.271,037,600
2001-12-05$21.27$22.241,106,000
2001-12-04$20.88$21.83699,200
2001-12-03$20.13$21.05728,400
2001-11-30$20.25$21.171,283,800
2001-11-29$20.13$21.051,073,800
2001-11-28$19.93$20.85931,000
2001-11-27$20.15$21.071,178,400
2001-11-26$20.05$20.971,021,600
2001-11-23$19.43$20.32219,200
2001-11-21$19.18$20.06456,600
2001-11-20$19.21$20.08536,000
2001-11-19$19.56$20.45708,800
2001-11-16$19.24$20.121,210,400
2001-11-15$19.50$20.391,373,200
2001-11-14$19.76$20.661,829,000
2001-11-13$18.96$19.831,635,400
2001-11-12$17.51$18.31660,400
2001-11-09$17.31$18.10809,000
2001-11-08$17.26$18.051,107,000
2001-11-07$16.76$17.53705,000
2001-11-06$16.50$17.261,438,400
2001-11-05$16.06$16.791,308,400
2001-11-02$15.98$16.70708,800
2001-11-01$15.59$16.301,315,600
2001-10-31$15.38$16.081,463,000
2001-10-30$15.44$16.15591,000
2001-10-29$15.99$16.721,043,600
2001-10-26$16.60$17.361,594,400
2001-10-25$16.48$17.231,200,000
2001-10-24$16.82$17.59896,600
2001-10-23$16.62$17.38511,400
2001-10-22$16.63$17.381,440,800
2001-10-19$17.33$18.121,401,200
2001-10-18$16.96$17.731,300,800
2001-10-17$16.86$17.631,532,400
2001-10-16$17.42$18.221,477,600
2001-10-15$16.26$17.01788,800
2001-10-12$16.65$17.413,746,000
2001-10-11$17.03$17.802,832,400
2001-10-10$17.71$18.51841,400
2001-10-09$16.79$17.56859,600
2001-10-08$16.55$17.31733,800
2001-10-05$16.75$17.51766,800
2001-10-04$16.75$17.511,365,600
2001-10-03$16.50$17.251,433,000
2001-10-02$15.36$16.064,550,000
2001-10-01$14.57$15.242,371,200
2001-09-28$16.00$16.731,675,600
2001-09-27$15.50$16.20867,800
2001-09-26$15.59$16.301,142,800
2001-09-25$16.12$16.853,102,800
2001-09-24$15.67$16.391,423,600
2001-09-21$13.95$14.592,833,000
2001-09-20$14.83$15.501,545,400
2001-09-19$15.42$16.122,324,600
2001-09-18$16.56$17.311,068,000
2001-09-17$16.75$17.521,195,000
2001-09-10$17.49$18.291,361,600
2001-09-07$16.99$17.761,833,800
2001-09-06$17.57$18.372,501,200
2001-09-05$19.07$19.942,059,800
2001-09-04$20.29$21.21665,800
2001-08-31$20.52$21.46640,200
2001-08-30$20.35$21.28898,400
2001-08-29$21.08$22.04843,600
2001-08-28$20.58$21.511,906,400
2001-08-27$21.73$22.72523,000
2001-08-24$21.98$22.98521,000
2001-08-23$21.89$22.88410,200
2001-08-22$22.30$23.32433,600
2001-08-21$22.22$23.23800,600
2001-08-20$22.33$23.35879,800
2001-08-17$21.34$22.321,514,000
2001-08-16$21.53$22.511,513,800
2001-08-15$21.82$22.811,614,800
2001-08-14$22.92$23.971,091,000
2001-08-13$23.05$24.10470,600
2001-08-10$23.09$24.14669,600
2001-08-09$23.17$24.22410,400
2001-08-08$23.06$24.111,205,600
2001-08-07$23.30$24.36469,200
2001-08-06$23.25$24.31306,400
2001-08-03$23.68$24.771,343,400
2001-08-02$24.17$25.28690,000
2001-08-01$24.44$25.561,382,200
2001-07-31$23.96$25.051,038,800
2001-07-30$23.62$24.70899,200
2001-07-27$23.42$24.49530,200
2001-07-26$23.45$24.521,939,800
2001-07-25$22.93$23.98830,200
2001-07-24$23.30$24.36683,000
2001-07-23$23.73$24.811,088,200
2001-07-20$24.30$25.40632,800
2001-07-19$25.17$26.321,157,400
2001-07-18$24.88$26.01658,800
2001-07-17$24.89$26.02974,800
2001-07-16$25.00$26.141,112,600
2001-07-13$25.33$26.492,693,800
2001-07-12$25.66$26.832,391,000
2001-07-11$24.23$25.34794,800
2001-07-10$24.26$25.371,708,600
2001-07-09$24.03$25.121,130,600
2001-07-06$23.91$25.001,317,600
2001-07-05$24.30$25.41906,200
2001-07-03$24.40$25.51847,800
2001-07-02$24.51$25.632,295,400
2001-06-29$23.70$24.781,274,600
2001-06-28$23.33$24.391,165,200
2001-06-27$22.90$23.95624,400
2001-06-26$22.58$23.61895,000
2001-06-25$22.33$23.34760,000
2001-06-22$22.13$23.14720,800
2001-06-21$21.93$22.941,072,000
2001-06-20$21.40$22.371,001,000
2001-06-19$20.47$21.401,023,800
2001-06-18$19.73$20.63849,800
2001-06-15$20.73$21.671,042,400
2001-06-14$20.42$21.36705,600
2001-06-13$20.92$21.88300,000
2001-06-12$21.11$22.07273,000
2001-06-11$21.04$22.00618,600
2001-06-08$21.00$21.96206,600
2001-06-07$21.19$22.13669,800
2001-06-06$20.80$21.721,056,600
2001-06-05$21.30$22.25793,000
2001-06-04$20.38$21.28786,400
2001-06-01$20.29$21.19501,800
2001-05-31$20.38$21.29975,800
2001-05-30$20.07$20.961,346,400
2001-05-29$20.73$21.65749,200
2001-05-25$21.39$22.34353,000
2001-05-24$22.00$22.98707,000
2001-05-23$21.55$22.50659,000
2001-05-22$21.86$22.831,236,800
2001-05-21$21.83$22.801,078,200
2001-05-18$20.72$21.64443,000
2001-05-17$20.82$21.751,119,400
2001-05-16$20.67$21.58393,400
2001-05-15$20.08$20.98534,600
2001-05-14$19.50$20.37475,400
2001-05-11$19.66$20.53624,800
2001-05-10$19.66$20.53910,000
2001-05-09$19.34$20.20713,600
2001-05-08$19.95$20.84651,000
2001-05-07$20.17$21.071,490,000
2001-05-04$20.33$21.231,149,400
2001-05-03$20.48$21.38619,800
2001-05-02$20.71$21.631,565,400
2001-05-01$20.17$21.07812,200
2001-04-30$20.06$20.951,788,800
2001-04-27$19.54$20.401,310,200
2001-04-26$18.23$19.041,406,200
2001-04-25$17.33$18.101,331,200
2001-04-24$17.05$17.811,225,400
2001-04-23$17.68$18.47593,800
2001-04-20$18.30$19.11519,600
2001-04-19$18.63$19.461,000,400
2001-04-18$18.50$19.322,356,600
2001-04-17$16.25$16.971,970,200
2001-04-16$15.49$16.18664,000
2001-04-12$16.13$16.84995,800
2001-04-11$15.48$16.171,126,800
2001-04-10$15.34$16.021,450,000
2001-04-09$14.27$14.901,287,000
2001-04-06$14.97$15.631,190,000
2001-04-05$16.16$16.871,338,000
2001-04-04$14.00$14.621,679,400
2001-04-03$14.38$15.011,362,800
2001-04-02$15.91$16.611,402,200
2001-03-30$15.59$16.292,295,200
2001-03-29$16.38$17.10912,400
2001-03-28$16.22$16.94637,000
2001-03-27$17.22$17.981,252,600
2001-03-26$16.19$16.91771,600
2001-03-23$16.50$17.23812,200
2001-03-22$15.00$15.673,189,200
2001-03-21$14.97$15.632,610,800
2001-03-20$16.97$17.72926,400
2001-03-19$17.66$18.44988,600
2001-03-16$17.13$17.891,739,400
2001-03-15$16.81$17.562,375,000
2001-03-14$17.25$18.021,988,200
2001-03-13$17.97$18.771,681,800
2001-03-12$17.69$18.471,238,200
2001-03-09$19.13$19.971,223,600
2001-03-08$19.47$20.331,145,200
2001-03-07$20.50$21.41869,400
2001-03-06$21.22$22.16428,800
2001-03-05$20.50$21.41564,000
2001-03-02$20.91$21.84821,000
2001-03-01$20.84$21.77914,600
2001-02-28$21.36$22.311,108,000
2001-02-27$22.25$23.24618,000
2001-02-26$22.23$23.22822,000
2001-02-23$21.50$22.46812,000
2001-02-22$21.03$21.971,967,600
2001-02-21$20.91$21.842,088,000
2001-02-20$22.13$23.111,376,000
2001-02-16$22.94$23.96670,800
2001-02-15$23.42$24.46854,800
2001-02-14$23.27$24.301,239,200
2001-02-13$22.48$23.48836,800
2001-02-12$22.25$23.24959,200
2001-02-09$22.63$23.63980,000
2001-02-08$22.91$23.922,518,400
2001-02-07$21.77$22.73978,800
2001-02-06$22.00$22.982,185,200
2001-02-05$21.34$22.291,574,400
2001-02-02$21.53$22.491,346,400
2001-02-01$21.03$21.971,376,800
2001-01-31$20.66$21.572,190,400
2001-01-30$21.25$22.194,021,600
2001-01-29$20.91$21.841,316,400
2001-01-26$20.59$21.511,985,600
2001-01-25$19.64$20.511,263,200
2001-01-24$20.28$21.181,807,200
2001-01-23$19.69$20.562,167,200
2001-01-22$18.23$19.041,729,200
2001-01-19$18.19$19.001,865,200
2001-01-18$18.69$19.522,466,000
2001-01-17$17.92$18.722,720,800
2001-01-16$18.95$19.802,841,200
2001-01-12$20.22$21.121,234,000
2001-01-11$20.23$21.132,470,400
2001-01-10$19.73$20.614,658,400
2001-01-09$19.41$20.273,613,600
2001-01-08$20.92$21.852,781,600
2001-01-05$21.56$22.522,492,800
2001-01-04$22.58$23.582,560,800
2001-01-03$24.84$25.934,177,600
2001-01-02$23.31$24.334,597,600