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 — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$23.79$26.36451,200
2010-12-30$23.88$26.46211,600
2010-12-29$24.01$26.61620,100
2010-12-28$23.86$26.44473,500
2010-12-27$24.08$26.69385,200
2010-12-23$24.01$26.61449,800
2010-12-22$24.07$26.67649,900
2010-12-21$24.18$26.801,123,500
2010-12-20$24.09$26.591,115,900
2010-12-17$23.98$26.461,605,200
2010-12-16$24.01$26.50658,500
2010-12-15$23.67$26.12736,800
2010-12-14$23.86$26.33377,300
2010-12-13$23.90$26.38362,800
2010-12-10$24.16$26.66346,600
2010-12-09$23.88$26.35776,700
2010-12-08$23.67$26.12530,800
2010-12-07$23.81$26.28591,700
2010-12-06$23.85$26.32485,500
2010-12-03$23.84$26.31501,400
2010-12-02$23.72$26.18993,300
2010-12-01$23.05$25.44662,000
2010-11-30$22.58$24.92788,700
2010-11-29$22.87$25.24676,700
2010-11-26$22.90$25.27201,000
2010-11-24$23.00$25.38571,000
2010-11-23$22.65$25.00854,700
2010-11-22$22.97$25.35601,200
2010-11-19$23.04$25.43402,800
2010-11-18$22.93$25.31562,000
2010-11-17$22.58$24.92623,100
2010-11-16$22.56$24.90961,700
2010-11-15$22.95$25.33392,800
2010-11-12$23.03$25.42881,700
2010-11-11$23.43$25.86816,700
2010-11-10$23.29$25.70912,100
2010-11-09$22.97$25.35620,600
2010-11-08$23.09$25.48679,000
2010-11-05$23.36$25.78596,700
2010-11-04$23.17$25.57943,200
2010-11-03$22.82$25.18727,900
2010-11-02$22.57$24.91533,100
2010-11-01$22.22$24.52653,100
2010-10-29$22.15$24.44530,800
2010-10-28$21.99$24.27523,200
2010-10-27$22.16$24.46713,900
2010-10-26$21.98$24.26789,900
2010-10-25$21.94$24.21639,200
2010-10-22$21.94$24.21476,400
2010-10-21$21.81$24.071,243,400
2010-10-20$21.78$24.041,450,000
2010-10-19$21.23$23.431,503,700
2010-10-18$21.27$23.47667,300
2010-10-15$20.99$23.16495,200
2010-10-14$21.00$23.18554,000
2010-10-13$21.04$23.22556,300
2010-10-12$20.77$22.92703,000
2010-10-11$20.55$22.68278,200
2010-10-08$20.55$22.68310,200
2010-10-07$20.34$22.45619,200
2010-10-06$20.68$22.82466,700
2010-10-05$20.69$22.831,034,000
2010-10-04$20.10$22.18559,700
2010-10-01$20.35$22.46547,500
2010-09-30$20.34$22.451,522,500
2010-09-29$20.24$22.34889,900
2010-09-28$19.99$22.06840,700
2010-09-27$19.88$21.94599,000
2010-09-24$20.02$22.09705,100
2010-09-23$19.45$21.46801,600
2010-09-22$19.90$21.96670,800
2010-09-21$20.03$22.11866,200
2010-09-20$20.45$22.57848,600
2010-09-17$19.84$21.903,714,700
2010-09-16$19.71$21.75435,600
2010-09-15$19.71$21.75497,500
2010-09-14$19.53$21.55560,400
2010-09-13$19.54$21.56906,200
2010-09-10$19.27$21.27660,100
2010-09-09$19.00$20.97755,200
2010-09-08$19.14$21.12985,700
2010-09-07$18.90$20.86652,000
2010-09-03$19.11$21.09935,400
2010-09-02$18.76$20.701,045,800
2010-09-01$18.32$20.221,068,500
2010-08-31$17.70$19.531,344,800
2010-08-30$17.57$19.39680,200
2010-08-27$18.02$19.891,237,100
2010-08-26$17.61$19.431,705,300
2010-08-25$17.81$19.661,782,300
2010-08-24$17.97$19.832,277,600
2010-08-23$18.68$20.62857,900
2010-08-20$19.08$21.061,065,000
2010-08-19$18.93$20.891,053,500
2010-08-18$19.24$21.231,517,600
2010-08-17$19.73$21.77652,300
2010-08-16$19.35$21.35501,600
2010-08-13$19.28$21.28657,700
2010-08-12$19.40$21.41852,300
2010-08-11$19.48$21.501,477,500
2010-08-10$20.11$22.191,002,800
2010-08-09$20.51$22.63920,200
2010-08-06$20.00$22.071,108,600
2010-08-05$19.86$21.92739,000
2010-08-04$19.81$21.861,580,400
2010-08-03$19.51$21.531,449,000
2010-08-02$19.52$21.541,870,900
2010-07-30$19.18$21.172,142,100
2010-07-29$19.34$21.341,516,000
2010-07-28$19.52$21.542,335,400
2010-07-27$19.90$21.962,619,800
2010-07-26$20.10$22.181,634,300
2010-07-23$19.93$21.992,049,000
2010-07-22$20.01$22.082,666,000
2010-07-21$20.50$22.621,241,300
2010-07-20$21.58$23.82760,300
2010-07-19$21.05$23.23391,900
2010-07-16$21.01$23.19803,500
2010-07-15$21.76$24.01510,200
2010-07-14$21.81$24.07932,800
2010-07-13$22.05$24.33734,800
2010-07-12$21.66$23.90542,200
2010-07-09$21.89$24.16632,800
2010-07-08$21.65$23.89697,200
2010-07-07$21.57$23.80958,700
2010-07-06$20.31$22.41661,400
2010-07-02$20.27$22.37409,400
2010-07-01$20.41$22.521,105,100
2010-06-30$20.36$22.47969,500
2010-06-29$20.61$22.75942,100
2010-06-28$21.50$23.73834,500
2010-06-25$21.17$23.362,305,200
2010-06-24$20.69$22.83795,900
2010-06-23$21.19$23.39795,600
2010-06-22$21.14$23.33681,400
2010-06-21$21.28$23.48791,400
2010-06-18$21.45$23.561,014,000
2010-06-17$21.70$23.84611,400
2010-06-16$21.81$23.961,339,700
2010-06-15$21.73$23.87609,800
2010-06-14$21.08$23.16847,300
2010-06-11$21.25$23.34604,700
2010-06-10$20.93$22.99907,800
2010-06-09$20.23$22.22939,600
2010-06-08$20.30$22.301,998,300
2010-06-07$20.37$22.38885,200
2010-06-04$20.97$23.032,086,600
2010-06-03$21.42$23.53995,400
2010-06-02$21.25$23.341,114,800
2010-06-01$20.79$22.84665,200
2010-05-28$21.09$23.17574,700
2010-05-27$21.41$23.521,167,500
2010-05-26$20.64$22.671,167,000
2010-05-25$20.84$22.891,973,400
2010-05-24$20.88$22.94983,500
2010-05-21$21.25$23.341,477,700
2010-05-20$20.94$23.001,573,700
2010-05-19$21.72$23.86734,200
2010-05-18$21.91$24.07772,200
2010-05-17$22.18$24.36798,900
2010-05-14$22.17$24.351,045,900
2010-05-13$22.60$24.83613,000
2010-05-12$22.76$25.001,032,400
2010-05-11$22.12$24.30950,800
2010-05-10$22.11$24.291,524,700
2010-05-07$21.46$23.571,325,900
2010-05-06$22.07$24.242,590,900
2010-05-05$22.81$25.061,613,800
2010-05-04$22.73$24.971,375,600
2010-05-03$22.80$25.041,542,900
2010-04-30$22.46$24.671,831,000
2010-04-29$22.75$24.994,481,400
2010-04-28$22.27$24.463,866,400
2010-04-27$23.81$26.151,019,100
2010-04-26$24.13$26.51571,500
2010-04-23$24.34$26.74574,000
2010-04-22$24.15$26.53725,300
2010-04-21$23.85$26.201,102,400
2010-04-20$24.05$26.42929,100
2010-04-19$23.80$26.141,340,000
2010-04-16$23.79$26.132,834,400
2010-04-15$23.94$26.30990,200
2010-04-14$23.59$25.91824,900
2010-04-13$23.38$25.681,066,600
2010-04-12$23.09$25.36840,200
2010-04-09$23.00$25.261,206,500
2010-04-08$22.50$24.721,538,700
2010-04-07$22.51$24.731,903,900
2010-04-06$22.77$25.011,587,300
2010-04-05$22.26$24.452,342,200
2010-04-01$22.18$24.361,347,600
2010-03-31$21.97$24.132,582,000
2010-03-30$21.82$23.971,259,500
2010-03-29$21.57$23.69812,100
2010-03-26$21.55$23.671,437,700
2010-03-25$21.53$23.651,743,100
2010-03-24$21.67$23.801,874,300
2010-03-23$21.85$24.001,927,600
2010-03-22$21.22$23.311,231,900
2010-03-19$20.99$23.062,100,200
2010-03-18$20.85$22.90985,400
2010-03-17$20.68$22.72938,700
2010-03-16$20.30$22.30990,500
2010-03-15$19.95$21.911,084,500
2010-03-12$20.11$22.091,065,300
2010-03-11$19.93$21.891,268,200
2010-03-10$19.60$21.531,657,000
2010-03-09$19.04$20.91717,300
2010-03-08$19.05$20.931,348,000
2010-03-05$18.17$19.96842,200
2010-03-04$17.84$19.601,074,900
2010-03-03$17.59$19.321,564,000
2010-03-02$17.84$19.601,854,000
2010-03-01$17.70$19.44519,200
2010-02-26$17.61$19.34828,900
2010-02-25$17.54$19.27842,600
2010-02-24$17.73$19.48792,500
2010-02-23$17.50$19.221,068,300
2010-02-22$17.54$19.27747,600
2010-02-19$17.31$19.011,127,000
2010-02-18$17.46$19.18581,300
2010-02-17$17.44$19.16460,700
2010-02-16$17.31$19.01563,000
2010-02-12$17.05$18.73824,200
2010-02-11$17.00$18.67769,900
2010-02-10$17.05$18.73655,600
2010-02-09$17.15$18.84905,400
2010-02-08$16.94$18.611,284,700
2010-02-05$17.11$18.791,291,800
2010-02-04$17.04$18.721,141,800
2010-02-03$17.69$19.43651,900
2010-02-02$17.74$19.49782,700
2010-02-01$17.77$19.52963,200
2010-01-29$17.71$19.451,133,200
2010-01-28$18.00$19.771,114,600
2010-01-27$18.64$20.481,244,800
2010-01-26$18.62$20.45988,900
2010-01-25$18.77$20.62913,200
2010-01-22$18.57$20.401,009,800
2010-01-21$19.00$20.871,705,100
2010-01-20$19.24$21.131,579,800
2010-01-19$19.37$21.281,430,600
2010-01-15$19.65$21.582,458,400
2010-01-14$19.66$21.601,726,600
2010-01-13$19.08$20.96958,000
2010-01-12$18.80$20.651,448,700
2010-01-11$18.37$20.18401,300
2010-01-08$18.26$20.06432,200
2010-01-07$18.20$19.99915,300
2010-01-06$17.91$19.67779,900
2010-01-05$17.99$19.761,208,400
2010-01-04$17.96$19.73871,900