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 — 2000

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2000-12-29$28.00$29.222,598,000
2000-12-28$30.86$32.204,163,200
2000-12-27$29.78$31.083,613,200
2000-12-26$27.59$28.801,658,800
2000-12-22$26.50$27.65833,200
2000-12-21$25.50$26.61993,200
2000-12-20$24.92$26.011,101,600
2000-12-19$26.09$27.231,067,600
2000-12-18$26.67$27.832,156,400
2000-12-15$24.72$25.803,615,200
2000-12-14$25.00$26.091,455,600
2000-12-13$25.53$26.641,503,200
2000-12-12$26.28$27.432,232,800
2000-12-11$27.75$28.962,357,200
2000-12-08$26.58$27.742,210,800
2000-12-07$24.95$26.042,250,000
2000-12-06$24.72$25.801,943,200
2000-12-05$23.91$24.951,016,800
2000-12-04$23.80$24.83758,400
2000-12-01$23.44$24.461,776,800
2000-11-30$22.27$23.242,646,000
2000-11-29$22.81$23.811,020,400
2000-11-28$23.72$24.751,112,800
2000-11-27$24.28$25.341,435,600
2000-11-24$23.78$24.82412,800
2000-11-22$22.61$23.601,061,600
2000-11-21$22.16$23.122,818,400
2000-11-20$22.81$23.81798,400
2000-11-17$23.64$24.68955,600
2000-11-16$23.02$24.021,862,000
2000-11-15$23.73$24.771,265,200
2000-11-14$21.97$22.93816,400
2000-11-13$21.95$22.911,274,000
2000-11-10$22.56$23.551,426,800
2000-11-09$22.42$23.401,312,000
2000-11-08$21.25$22.181,264,400
2000-11-07$22.30$23.271,125,200
2000-11-06$21.94$22.891,065,200
2000-11-03$21.61$22.551,380,400
2000-11-02$21.53$22.471,035,600
2000-11-01$21.38$22.312,051,200
2000-10-31$22.69$23.681,605,200
2000-10-30$21.77$22.711,703,600
2000-10-27$21.25$22.18968,000
2000-10-26$20.09$20.97866,800
2000-10-25$20.06$20.941,525,200
2000-10-24$19.13$19.96960,800
2000-10-23$19.25$20.091,518,000
2000-10-20$18.72$19.531,142,000
2000-10-19$18.56$19.371,039,200
2000-10-18$17.97$18.751,399,600
2000-10-17$16.55$17.271,336,400
2000-10-16$16.08$16.784,159,200
2000-10-13$14.78$15.431,330,400
2000-10-12$14.16$14.77816,800
2000-10-11$14.58$15.211,508,000
2000-10-10$14.70$15.34942,400
2000-10-09$16.02$16.711,158,800
2000-10-06$15.78$16.471,609,600
2000-10-05$15.91$16.602,968,400
2000-10-04$15.28$15.954,641,200
2000-10-03$17.47$18.23897,600
2000-10-02$17.50$18.26656,000
2000-09-29$17.69$18.462,306,800
2000-09-28$18.48$19.29926,000
2000-09-27$17.33$18.08662,400
2000-09-26$17.39$18.15499,600
2000-09-25$17.88$18.651,982,800
2000-09-22$17.65$18.421,422,800
2000-09-21$17.16$17.911,529,600
2000-09-20$16.84$17.58758,400
2000-09-19$16.52$17.241,583,600
2000-09-18$15.08$15.741,832,000
2000-09-15$16.20$16.912,749,200
2000-09-14$16.83$17.56543,600
2000-09-13$16.70$17.421,116,800
2000-09-12$16.77$17.502,456,400
2000-09-11$17.27$18.022,239,600
2000-09-08$16.13$16.83813,600
2000-09-07$15.86$16.551,327,200
2000-09-06$15.78$16.47980,800
2000-09-05$16.06$16.762,665,200
2000-09-01$16.13$16.832,269,200
2000-08-31$15.88$16.5715,116,400
2000-08-30$16.47$17.19845,600
2000-08-29$16.06$16.761,056,800
2000-08-28$15.91$16.601,118,800
2000-08-25$16.38$17.092,908,800
2000-08-24$15.78$16.47402,800
2000-08-23$15.29$15.96781,600
2000-08-22$15.73$16.42613,200
2000-08-21$15.98$16.68767,600
2000-08-18$15.31$15.98326,000
2000-08-17$15.91$16.60340,800
2000-08-16$15.97$16.66503,600
2000-08-15$15.11$15.77245,600
2000-08-14$15.33$16.00506,000
2000-08-11$15.59$16.27416,400
2000-08-10$14.63$15.26499,600
2000-08-09$14.50$15.13271,200
2000-08-08$14.22$14.84451,200
2000-08-07$14.03$14.64505,200
2000-08-04$14.36$14.99516,000
2000-08-03$13.50$14.09566,800
2000-08-02$13.00$13.57411,600
2000-08-01$13.03$13.60548,000
2000-07-31$13.69$14.28827,200
2000-07-28$13.00$13.571,099,600
2000-07-27$12.28$12.82853,600
2000-07-26$14.23$14.85515,600
2000-07-25$14.75$15.39496,000
2000-07-24$14.28$14.90218,000
2000-07-21$14.58$15.21551,600
2000-07-20$15.50$16.18492,800
2000-07-19$13.72$14.32523,200
2000-07-18$13.33$13.91476,400
2000-07-17$13.73$14.33330,400
2000-07-14$13.73$14.33257,600
2000-07-13$13.50$14.09423,200
2000-07-12$13.25$13.83608,000
2000-07-11$12.94$13.50936,400
2000-07-10$13.66$14.251,274,800
2000-07-07$13.31$13.891,456,800
2000-07-06$12.00$12.521,014,000
2000-07-05$11.14$11.63373,200
2000-07-03$10.83$11.30222,400
2000-06-30$9.95$10.392,316,000
2000-06-29$11.41$11.90805,200
2000-06-28$11.77$12.281,026,800
2000-06-27$10.58$11.04413,200
2000-06-26$11.44$11.94582,800
2000-06-23$10.89$11.37311,600
2000-06-22$10.72$11.191,177,200
2000-06-21$10.63$11.09520,400
2000-06-20$11.25$11.74834,000
2000-06-19$12.17$12.70588,000
2000-06-16$12.08$12.611,790,400
2000-06-15$11.67$12.18474,000
2000-06-14$11.28$11.77368,400
2000-06-13$11.67$12.18327,600
2000-06-12$11.33$11.83424,800
2000-06-09$11.51$12.01475,200
2000-06-08$11.58$12.09327,600
2000-06-07$11.70$12.21661,200
2000-06-06$11.43$11.93750,000
2000-06-05$11.72$12.23440,400
2000-06-02$11.54$12.04520,800
2000-06-01$11.49$11.99772,800
2000-05-31$11.68$12.171,321,200
2000-05-30$11.66$12.14279,600
2000-05-26$10.39$10.82524,400
2000-05-25$10.57$11.01394,800
2000-05-24$11.35$11.83480,000
2000-05-23$10.90$11.351,195,200
2000-05-22$10.74$11.19585,600
2000-05-19$10.49$10.93477,600
2000-05-18$10.40$10.84435,600
2000-05-17$10.10$10.5385,200
2000-05-16$10.41$10.84410,400
2000-05-15$10.10$10.52447,600
2000-05-12$9.96$10.37211,200
2000-05-11$10.04$10.46837,600
2000-05-10$9.30$9.69398,400
2000-05-09$9.89$10.30264,000
2000-05-08$9.97$10.39177,600
2000-05-05$9.81$10.22208,800
2000-05-04$9.54$9.94258,000
2000-05-03$9.76$10.17531,600
2000-05-02$9.66$10.07399,600
2000-05-01$10.00$10.42516,000
2000-04-28$9.95$10.36416,400
2000-04-27$9.92$10.33196,800
2000-04-26$9.81$10.22379,200
2000-04-25$9.88$10.29387,600
2000-04-24$9.54$9.94478,800
2000-04-20$9.29$9.68470,400
2000-04-19$9.42$9.81736,800
2000-04-18$9.41$9.80902,400
2000-04-17$8.85$9.22582,000
2000-04-14$8.59$8.951,998,000
2000-04-13$8.94$9.31536,400
2000-04-12$8.70$9.06560,400
2000-04-11$9.29$9.68502,800
2000-04-10$9.19$9.58265,200
2000-04-07$9.15$9.53205,200
2000-04-06$9.14$9.52346,800
2000-04-05$9.03$9.40396,000
2000-04-04$9.21$9.602,223,600
2000-04-03$9.37$9.761,519,200
2000-03-31$9.45$9.851,164,000
2000-03-30$8.78$9.14637,200
2000-03-29$8.73$9.09378,000
2000-03-28$8.96$9.33284,400
2000-03-27$8.69$9.05188,400
2000-03-24$9.26$9.64672,000
2000-03-23$9.04$9.42771,600
2000-03-22$8.69$9.05444,000
2000-03-21$8.57$8.93412,800
2000-03-20$8.24$8.58736,800
2000-03-17$8.20$8.54280,800
2000-03-16$8.33$8.68367,200
2000-03-15$7.96$8.29249,600
2000-03-14$8.04$8.38253,200
2000-03-13$8.01$8.35222,000
2000-03-10$8.10$8.44699,600
2000-03-09$8.11$8.45673,200
2000-03-08$8.09$8.43496,800
2000-03-07$8.17$8.51596,400
2000-03-06$8.07$8.41470,400
2000-03-03$8.03$8.36613,200
2000-03-02$7.84$8.17632,400
2000-03-01$7.87$8.201,123,200
2000-02-29$7.44$7.751,108,800
2000-02-28$7.68$8.001,047,600
2000-02-25$7.76$8.09402,000
2000-02-24$7.53$7.85637,200
2000-02-23$8.16$8.501,010,400
2000-02-22$7.87$8.20937,200
2000-02-18$8.03$8.37880,800
2000-02-17$8.00$8.33748,800
2000-02-16$7.70$8.03333,600
2000-02-15$8.05$8.38274,800
2000-02-14$8.04$8.38925,200
2000-02-11$7.75$8.07798,000
2000-02-10$8.20$8.541,509,600
2000-02-09$8.34$8.69889,200
2000-02-08$8.25$8.591,935,600
2000-02-07$8.19$8.541,671,600
2000-02-04$8.42$8.77967,200
2000-02-03$8.71$9.07783,600
2000-02-02$8.92$9.291,530,000
2000-02-01$8.64$9.00568,800
2000-01-31$8.69$9.05331,200
2000-01-28$8.72$9.08688,800
2000-01-27$8.38$8.731,210,800
2000-01-26$8.39$8.74601,200
2000-01-25$8.68$9.05837,600
2000-01-24$9.18$9.571,022,400
2000-01-21$9.36$9.75714,000
2000-01-20$9.28$9.67608,400
2000-01-19$9.21$9.59450,000
2000-01-18$9.19$9.57963,600
2000-01-14$9.16$9.541,437,600
2000-01-13$9.16$9.54379,200
2000-01-12$8.98$9.35362,400
2000-01-11$9.02$9.401,206,000
2000-01-10$9.67$10.07276,000
2000-01-07$9.52$9.921,113,600
2000-01-06$9.08$9.46270,000
2000-01-05$9.27$9.66606,000
2000-01-04$9.23$9.60783,600
2000-01-03$9.97$10.37716,400