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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$63.55$84.12419,500
2023-12-28$63.92$84.60394,900
2023-12-27$64.12$84.87460,100
2023-12-26$64.58$84.87383,600
2023-12-22$64.59$84.88333,300
2023-12-21$64.43$84.67643,800
2023-12-20$63.59$83.57677,300
2023-12-19$63.66$83.66746,300
2023-12-18$63.13$82.96593,900
2023-12-15$62.00$81.481,660,400
2023-12-14$62.92$82.69652,400
2023-12-13$61.80$81.22529,700
2023-12-12$60.56$79.59576,500
2023-12-11$60.47$79.47330,300
2023-12-08$60.24$79.17441,300
2023-12-07$59.92$78.75314,700
2023-12-06$59.59$78.31574,700
2023-12-05$59.62$78.35667,100
2023-12-04$60.12$79.01463,400
2023-12-01$59.88$78.69582,700
2023-11-30$58.67$77.10973,700
2023-11-29$57.88$76.06562,900
2023-11-28$57.92$76.12472,800
2023-11-27$57.69$75.81472,600
2023-11-24$57.97$76.18190,100
2023-11-22$57.71$75.84443,800
2023-11-21$57.67$75.79629,900
2023-11-20$58.28$76.59452,200
2023-11-17$57.99$76.21593,800
2023-11-16$58.30$76.62602,500
2023-11-15$58.38$76.72510,700
2023-11-14$57.62$75.72368,600
2023-11-13$56.18$73.83294,000
2023-11-10$56.55$74.32402,100
2023-11-09$55.93$73.50445,900
2023-11-08$55.96$73.54335,900
2023-11-07$55.93$73.50350,800
2023-11-06$56.19$73.84502,500
2023-11-03$56.02$73.62389,500
2023-11-02$55.31$72.69510,500
2023-11-01$54.16$71.18477,100
2023-10-31$53.66$70.52839,900
2023-10-30$53.51$70.32524,700
2023-10-27$53.26$69.99819,300
2023-10-26$52.90$69.52758,600
2023-10-25$54.40$71.49817,400
2023-10-24$54.51$71.64547,600
2023-10-23$54.69$71.87440,200
2023-10-20$55.00$72.28553,400
2023-10-19$55.58$73.04542,800
2023-10-18$55.88$73.44430,400
2023-10-17$57.13$75.08918,800
2023-10-16$56.81$74.66532,700
2023-10-13$56.42$74.15506,700
2023-10-12$56.85$74.71429,300
2023-10-11$57.86$76.04381,200
2023-10-10$57.87$76.05555,400
2023-10-09$57.64$75.75403,400
2023-10-06$58.15$76.42527,200
2023-10-05$58.25$76.55586,200
2023-10-04$57.73$75.87424,300
2023-10-03$57.04$74.96550,400
2023-10-02$59.17$77.76402,000
2023-09-29$60.23$79.15496,700
2023-09-28$60.25$79.18559,800
2023-09-27$60.42$79.40863,100
2023-09-26$60.22$79.14606,600
2023-09-25$60.75$79.84602,000
2023-09-22$60.25$79.18411,900
2023-09-21$60.27$79.21480,200
2023-09-20$61.27$80.52463,000
2023-09-19$61.43$80.73504,800
2023-09-18$61.65$81.02615,000
2023-09-15$60.97$80.131,300,900
2023-09-14$61.05$80.23484,300
2023-09-13$60.75$79.84752,700
2023-09-12$60.49$79.49563,000
2023-09-11$61.13$80.34342,000
2023-09-08$61.37$80.65408,300
2023-09-07$60.66$79.72497,300
2023-09-06$60.83$79.94480,400
2023-09-05$61.33$80.60675,200
2023-09-01$62.01$81.49485,000
2023-08-31$62.06$81.56740,000
2023-08-30$62.26$81.82349,800
2023-08-29$62.02$81.51321,100
2023-08-28$61.38$80.66293,200
2023-08-25$61.32$80.59373,500
2023-08-24$60.86$79.98365,100
2023-08-23$61.56$80.90333,800
2023-08-22$60.62$79.67455,100
2023-08-21$61.17$80.39567,500
2023-08-18$61.24$80.48515,700
2023-08-17$60.91$80.05367,400
2023-08-16$60.94$80.09473,400
2023-08-15$60.84$79.95518,100
2023-08-14$61.98$81.45360,800
2023-08-11$61.84$81.27518,000
2023-08-10$61.86$81.29450,700
2023-08-09$61.75$81.15458,100
2023-08-08$61.96$81.43496,800
2023-08-07$63.06$82.87432,100
2023-08-04$61.69$81.07333,200
2023-08-03$62.01$81.49496,000
2023-08-02$62.09$81.60872,900
2023-08-01$62.79$82.52556,300
2023-07-31$62.99$82.781,057,200
2023-07-28$62.93$82.70580,000
2023-07-27$62.51$82.15992,300
2023-07-26$63.85$83.91664,200
2023-07-25$63.97$84.07374,200
2023-07-24$64.08$84.21437,900
2023-07-21$63.87$83.94436,000
2023-07-20$64.08$84.21746,900
2023-07-19$63.91$83.99593,500
2023-07-18$62.92$82.69481,800
2023-07-17$62.18$81.72598,500
2023-07-14$61.59$80.94554,300
2023-07-13$62.10$81.61566,300
2023-07-12$60.95$80.10918,500
2023-07-11$60.30$79.24372,000
2023-07-10$59.52$78.22353,500
2023-07-07$59.19$77.79433,300
2023-07-06$59.00$77.54474,900
2023-07-05$59.15$77.73452,100
2023-07-03$59.58$78.30163,000
2023-06-30$59.62$78.35546,800
2023-06-29$59.26$77.88533,900
2023-06-28$58.69$77.13357,200
2023-06-27$58.71$77.16606,000
2023-06-26$57.16$75.12482,900
2023-06-23$56.98$74.88947,000
2023-06-22$57.66$75.78623,400
2023-06-21$58.49$76.87548,700
2023-06-20$59.01$77.55523,500
2023-06-16$59.33$77.971,082,300
2023-06-15$59.61$78.34530,700
2023-06-14$58.70$77.14561,900
2023-06-13$58.79$77.26307,500
2023-06-12$58.24$76.54493,600
2023-06-09$58.84$77.33478,200
2023-06-08$59.29$77.35375,600
2023-06-07$59.01$76.99447,600
2023-06-06$58.56$76.40523,000
2023-06-05$57.67$75.24509,100
2023-06-02$58.52$76.35402,800
2023-06-01$57.46$74.96621,900
2023-05-31$56.58$73.821,983,900
2023-05-30$57.30$74.76620,200
2023-05-26$57.43$74.93757,100
2023-05-25$57.13$74.53538,300
2023-05-24$57.48$74.99620,200
2023-05-23$57.87$75.50429,400
2023-05-22$57.88$75.51694,600
2023-05-19$57.92$75.57489,600
2023-05-18$58.38$76.17359,200
2023-05-17$58.30$76.06486,900
2023-05-16$57.31$74.77939,600
2023-05-15$58.52$76.35332,500
2023-05-12$58.76$76.66390,700
2023-05-11$58.33$76.10442,200
2023-05-10$58.16$75.88450,000
2023-05-09$58.33$76.10471,500
2023-05-08$58.91$76.86422,400
2023-05-05$59.33$77.40375,100
2023-05-04$58.06$75.75466,400
2023-05-03$58.40$76.19891,100
2023-05-02$58.51$76.33600,500
2023-05-01$58.76$76.66296,700
2023-04-28$58.91$76.86459,600
2023-04-27$58.13$75.84426,000
2023-04-26$57.20$74.63387,600
2023-04-25$57.91$75.55450,600
2023-04-24$58.57$76.41638,400
2023-04-21$58.43$76.23641,400
2023-04-20$58.69$76.57579,900
2023-04-19$59.42$77.52492,200
2023-04-18$58.76$76.66600,800
2023-04-17$58.02$75.70564,800
2023-04-14$58.09$75.79314,900
2023-04-13$58.07$75.76420,800
2023-04-12$57.43$74.93348,400
2023-04-11$57.57$75.11370,200
2023-04-10$56.80$74.10353,200
2023-04-06$56.78$74.08270,500
2023-04-05$56.50$73.71535,600
2023-04-04$56.79$74.09410,100
2023-04-03$57.33$74.80316,000
2023-03-31$57.55$75.08438,200
2023-03-30$56.64$73.90248,400
2023-03-29$56.55$73.78386,600
2023-03-28$55.83$72.84385,500
2023-03-27$55.47$72.37664,000
2023-03-24$54.80$71.49820,700
2023-03-23$55.21$72.03479,600
2023-03-22$55.62$72.56377,800
2023-03-21$56.72$74.00388,700
2023-03-20$55.55$72.47468,400
2023-03-17$55.14$71.941,093,200
2023-03-16$55.58$72.51391,200
2023-03-15$55.26$72.09490,200
2023-03-14$55.86$72.88656,700
2023-03-13$55.12$71.91497,500
2023-03-10$56.43$73.62530,700
2023-03-09$57.96$75.62356,200
2023-03-08$59.22$77.26318,700
2023-03-07$59.20$77.23295,400
2023-03-06$60.27$78.63409,600
2023-03-03$60.57$79.02378,300
2023-03-02$60.03$78.32326,100
2023-03-01$60.12$78.44537,800
2023-02-28$60.25$78.601,086,800
2023-02-27$59.70$77.89304,500
2023-02-24$59.75$77.95297,000
2023-02-23$60.24$78.59358,700
2023-02-22$59.82$78.04379,900
2023-02-21$59.93$78.19353,500
2023-02-17$61.40$80.11533,700
2023-02-16$61.96$80.84376,400
2023-02-15$62.19$81.14246,200
2023-02-14$62.48$81.51245,900
2023-02-13$63.06$82.27351,400
2023-02-10$62.43$81.45502,000
2023-02-09$62.66$81.75488,200
2023-02-08$63.43$82.75334,600
2023-02-07$63.75$83.17415,600
2023-02-06$63.16$82.40335,500
2023-02-03$63.97$83.46396,800
2023-02-02$64.25$83.82510,800
2023-02-01$63.67$83.07509,800
2023-01-31$62.43$81.451,855,300
2023-01-30$61.72$80.52511,000
2023-01-27$62.08$80.99473,900
2023-01-26$61.91$80.77714,900
2023-01-25$63.04$82.24684,000
2023-01-24$62.57$81.63559,800
2023-01-23$62.76$81.88432,800
2023-01-20$62.07$80.98432,800
2023-01-19$60.82$79.35430,000
2023-01-18$61.66$80.44475,600
2023-01-17$61.86$80.71467,700
2023-01-13$62.07$80.98322,500
2023-01-12$61.56$80.31342,700
2023-01-11$61.34$80.03403,800
2023-01-10$60.99$79.57432,300
2023-01-09$61.27$79.94409,400
2023-01-06$61.16$79.79394,600
2023-01-05$58.99$76.96271,900
2023-01-04$59.88$78.12441,300
2023-01-03$59.08$77.08385,300