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 — 2012

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2012-12-31$23.34$27.02971,700——
2012-12-28$23.06$26.69630,700——
2012-12-27$23.30$26.971,055,400——
2012-12-26$23.38$27.06798,200——
2012-12-24$23.40$27.09254,800——
2012-12-21$23.16$26.811,549,300——
2012-12-20$23.48$27.181,446,600——
2012-12-19$22.78$26.37637,500——
2012-12-18$23.08$26.161,142,400——
2012-12-17$22.66$25.68471,000——
2012-12-14$22.19$25.15697,700——
2012-12-13$22.40$25.39504,300——
2012-12-12$22.54$25.55570,900——
2012-12-11$22.45$25.45790,900——
2012-12-10$22.01$24.95780,400——
2012-12-07$22.09$25.04445,100——
2012-12-06$22.10$25.05537,900——
2012-12-05$22.00$24.94558,100——
2012-12-04$22.03$24.97670,900——
2012-12-03$22.11$25.06554,000——
2012-11-30$22.01$24.95947,500——
2012-11-29$22.11$25.06593,900——
2012-11-28$22.17$25.13639,500——
2012-11-27$22.28$25.25688,800——
2012-11-26$22.32$25.30638,300——
2012-11-23$22.50$25.50312,300——
2012-11-21$22.25$25.22537,300——
2012-11-20$21.98$24.91590,900——
2012-11-19$21.87$24.79672,200——
2012-11-16$21.37$24.22958,300——
2012-11-15$21.28$24.12872,100——
2012-11-14$21.20$24.03789,200——
2012-11-13$21.53$24.40831,600——
2012-11-12$21.60$24.48354,000——
2012-11-09$21.46$24.32596,000——
2012-11-08$21.53$24.40485,400——
2012-11-07$21.85$24.77708,800——
2012-11-06$22.24$25.21719,000——
2012-11-05$22.12$25.07425,400——
2012-11-02$22.05$24.99664,400——
2012-11-01$22.37$25.361,066,300——
2012-10-31$21.85$24.77813,900——
2012-10-26$21.91$24.83658,800——
2012-10-25$22.07$25.021,415,400——
2012-10-24$21.35$24.201,067,200——
2012-10-23$21.05$23.861,299,300——
2012-10-22$21.18$24.011,057,300——
2012-10-19$21.19$24.02782,300——
2012-10-18$21.57$24.45853,800——
2012-10-17$21.59$24.47692,200——
2012-10-16$21.49$24.36629,500——
2012-10-15$21.22$24.05470,200——
2012-10-12$21.17$24.00520,000——
2012-10-11$21.41$24.27403,100——
2012-10-10$21.22$24.05576,200——
2012-10-09$21.26$24.10989,300——
2012-10-08$21.33$24.18363,000——
2012-10-05$21.40$24.26428,700——
2012-10-04$21.59$24.47707,200——
2012-10-03$21.24$24.07741,400——
2012-10-02$21.34$24.19853,200——
2012-10-01$21.11$23.93946,900——
2012-09-28$21.44$24.30765,900——
2012-09-27$21.53$24.40708,900——
2012-09-26$21.34$24.191,291,300——
2012-09-25$21.70$24.60736,100——
2012-09-24$22.10$25.05808,900——
2012-09-21$22.15$25.112,292,700——
2012-09-20$22.06$25.00642,700——
2012-09-19$22.41$25.40717,800——
2012-09-18$22.46$25.46468,000——
2012-09-17$22.64$25.66779,400——
2012-09-14$22.83$25.88879,800——
2012-09-13$22.26$25.23813,800——
2012-09-12$22.04$24.98491,700——
2012-09-11$22.04$24.98666,300——
2012-09-10$22.12$25.07466,600——
2012-09-07$22.38$25.37507,700——
2012-09-06$22.32$25.301,614,200——
2012-09-05$21.75$24.65723,300——
2012-09-04$21.95$24.88664,900——
2012-08-31$21.75$24.65669,000——
2012-08-30$21.68$24.57480,600——
2012-08-29$21.92$24.85500,400——
2012-08-28$21.89$24.811,142,100——
2012-08-27$21.94$24.87651,900——
2012-08-24$22.01$24.95664,200——
2012-08-23$22.06$25.00666,200——
2012-08-22$22.11$25.06800,300——
2012-08-21$22.26$25.231,286,200——
2012-08-20$21.97$24.90801,900——
2012-08-17$21.89$24.81446,600——
2012-08-16$21.82$24.73743,900——
2012-08-15$21.39$24.24608,900——
2012-08-14$21.29$24.13613,900——
2012-08-13$21.37$24.22891,100——
2012-08-10$21.40$24.26581,300——
2012-08-09$21.55$24.43656,100——
2012-08-08$21.68$24.57365,200——
2012-08-07$21.75$24.65609,500——
2012-08-06$21.53$24.40569,600——
2012-08-03$21.45$24.31576,800——
2012-08-02$20.86$23.64550,600——
2012-08-01$21.11$23.93603,200——
2012-07-31$21.18$24.01778,200——
2012-07-30$21.29$24.13901,900——
2012-07-27$21.65$24.541,537,800——
2012-07-26$20.95$23.751,425,400——
2012-07-25$20.22$22.92917,900——
2012-07-24$20.18$22.87871,700——
2012-07-23$20.43$23.161,081,700——
2012-07-20$20.74$23.519,800,200——
2012-07-19$21.27$24.111,512,700——
2012-07-18$21.18$24.013,104,800——
2012-07-17$19.89$22.541,827,300——
2012-07-16$20.17$22.861,165,600——
2012-07-13$20.01$22.68971,600——
2012-07-12$19.85$22.50864,500——
2012-07-11$19.89$22.54924,900——
2012-07-10$19.86$22.511,143,600——
2012-07-09$19.46$22.06535,100——
2012-07-06$19.56$22.17330,400——
2012-07-05$19.76$22.40704,200——
2012-07-03$19.92$22.58333,500——
2012-07-02$19.87$22.52562,800——
2012-06-29$19.89$22.54662,000——
2012-06-28$19.31$21.89837,600——
2012-06-27$19.34$21.921,381,600——
2012-06-26$19.35$21.931,560,100——
2012-06-25$19.33$21.91675,900——
2012-06-22$19.65$22.27916,300——
2012-06-21$19.50$22.101,343,000——
2012-06-20$19.68$22.311,590,200——
2012-06-19$19.50$22.101,113,900——
2012-06-18$18.91$21.43679,500——
2012-06-15$18.71$21.21984,800——
2012-06-14$18.20$20.63663,400——
2012-06-13$18.15$20.40672,100——
2012-06-12$18.43$20.72489,600——
2012-06-11$18.06$20.30604,600——
2012-06-08$18.28$20.55503,600——
2012-06-07$18.22$20.48415,800——
2012-06-06$18.27$20.54615,200——
2012-06-05$17.83$20.04889,200——
2012-06-04$17.39$19.55916,800——
2012-06-01$17.22$19.361,177,700——
2012-05-31$17.91$20.131,302,000——
2012-05-30$18.04$20.28840,400——
2012-05-29$18.41$20.69739,000——
2012-05-25$18.13$20.38708,400——
2012-05-24$18.14$20.39954,900——
2012-05-23$18.00$20.23794,000——
2012-05-22$17.93$20.15821,600——
2012-05-21$18.00$20.23418,900——
2012-05-18$17.68$19.87515,600——
2012-05-17$18.07$20.31443,500——
2012-05-16$18.52$20.82606,200——
2012-05-15$18.63$20.94407,400——
2012-05-14$18.81$21.14531,700——
2012-05-11$19.10$21.47951,300——
2012-05-10$18.99$21.35536,000——
2012-05-09$18.93$21.28558,400——
2012-05-08$19.27$21.66523,400——
2012-05-07$19.34$21.74878,500——
2012-05-04$19.36$21.76780,100——
2012-05-03$19.99$22.47543,800——
2012-05-02$20.20$22.71792,000——
2012-05-01$20.54$23.09926,800——
2012-04-30$20.20$22.71863,200——
2012-04-27$20.28$22.80549,400——
2012-04-26$20.29$22.81679,800——
2012-04-25$20.20$22.71384,300——
2012-04-24$19.82$22.28529,800——
2012-04-23$19.82$22.28482,900——
2012-04-20$19.93$22.40432,000——
2012-04-19$19.95$22.43354,900——
2012-04-18$20.12$22.62827,000——
2012-04-17$20.50$23.04814,900——
2012-04-16$20.04$22.53548,100——
2012-04-13$19.88$22.35611,400——
2012-04-12$20.25$22.761,141,800——
2012-04-11$19.97$22.45754,300——
2012-04-10$19.75$22.20940,400——
2012-04-09$20.25$22.761,056,900——
2012-04-05$20.92$23.52544,400——
2012-04-04$20.83$23.41583,900——
2012-04-03$21.02$23.631,045,600——
2012-04-02$21.07$23.68607,100——
2012-03-30$20.69$23.26806,600——
2012-03-29$20.76$23.34662,300——
2012-03-28$21.00$23.61744,700——
2012-03-27$21.16$23.79365,900——
2012-03-26$21.35$24.00744,500——
2012-03-23$21.04$23.65653,200——
2012-03-22$20.96$23.56506,100——
2012-03-21$21.24$23.88592,800——
2012-03-20$21.14$23.76553,300——
2012-03-19$21.33$23.98521,100——
2012-03-16$21.37$24.021,171,500——
2012-03-15$21.31$23.95862,000——
2012-03-14$20.75$23.32523,600——
2012-03-13$20.86$23.45669,100——
2012-03-12$20.10$22.59578,400——
2012-03-09$20.03$22.52650,500——
2012-03-08$19.91$22.381,035,300——
2012-03-07$19.91$22.38772,100——
2012-03-06$19.35$21.75617,600——
2012-03-05$19.77$22.22729,300——
2012-03-02$19.92$22.39878,100——
2012-03-01$19.90$22.37849,300——
2012-02-29$19.75$22.201,079,600——
2012-02-28$19.81$22.27616,200——
2012-02-27$19.77$22.22425,300——
2012-02-24$19.76$22.21671,100——
2012-02-23$19.69$22.13586,600——
2012-02-22$19.45$21.86538,000——
2012-02-21$19.60$22.03641,200——
2012-02-17$19.79$22.25561,600——
2012-02-16$19.84$22.30800,800——
2012-02-15$19.54$21.96751,200——
2012-02-14$19.43$21.84543,400——
2012-02-13$19.51$21.93644,900——
2012-02-10$19.39$21.80803,000——
2012-02-09$19.48$21.90463,400——
2012-02-08$19.30$21.69591,300——
2012-02-07$19.46$21.87557,100——
2012-02-06$19.47$21.89732,600——
2012-02-03$19.57$22.00894,000——
2012-02-02$19.05$21.41702,600——
2012-02-01$18.87$21.211,007,200——
2012-01-31$18.37$20.651,361,300——
2012-01-30$17.94$20.171,049,200——
2012-01-27$18.19$20.45806,800——
2012-01-26$18.32$20.59811,300——
2012-01-25$18.13$20.381,308,200——
2012-01-24$18.71$21.03861,800——
2012-01-23$18.77$21.10705,400——
2012-01-20$18.69$21.01728,000——
2012-01-19$18.61$20.92643,200——
2012-01-18$18.52$20.82677,000——
2012-01-17$18.12$20.37698,600——
2012-01-13$18.06$20.30621,800——
2012-01-12$18.29$20.56498,700——
2012-01-11$18.21$20.47536,700——
2012-01-10$18.12$20.37680,000——
2012-01-09$17.67$19.86508,600——
2012-01-06$17.58$19.76733,400——
2012-01-05$17.55$19.731,021,600——
2012-01-04$17.43$19.59570,200——
2012-01-03$17.50$19.67887,000——