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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$65.48$82.09517,800——
2019-12-30$65.51$82.13330,500——
2019-12-27$65.83$82.53204,900——
2019-12-26$65.97$82.70278,800——
2019-12-24$65.98$82.28149,600——
2019-12-23$65.92$82.20757,300——
2019-12-20$66.15$82.491,788,300——
2019-12-19$66.97$83.51675,400——
2019-12-18$66.94$83.47881,400——
2019-12-17$66.70$83.17969,900——
2019-12-16$66.12$82.45758,200——
2019-12-13$65.80$82.05667,800——
2019-12-12$65.70$81.93595,100——
2019-12-11$64.77$80.77419,400——
2019-12-10$64.63$80.59664,900——
2019-12-09$64.43$80.34585,500——
2019-12-06$64.39$80.29503,300——
2019-12-05$64.01$79.82565,300——
2019-12-04$63.52$79.21913,700——
2019-12-03$63.34$78.98556,900——
2019-12-02$63.79$79.55804,700——
2019-11-29$64.53$80.47325,700——
2019-11-27$64.96$81.00624,300——
2019-11-26$64.02$79.83799,300——
2019-11-25$63.72$79.46344,300——
2019-11-22$63.04$78.61409,200——
2019-11-21$62.89$78.42519,800——
2019-11-20$63.31$78.95984,100——
2019-11-19$62.99$78.55899,900——
2019-11-18$62.28$77.66737,800——
2019-11-15$62.77$78.27424,300——
2019-11-14$62.80$78.31551,000——
2019-11-13$62.73$78.22659,100——
2019-11-12$62.75$78.25381,100——
2019-11-11$62.60$78.06297,500——
2019-11-08$62.44$77.86254,800——
2019-11-07$62.53$77.97413,400——
2019-11-06$62.59$78.05379,000——
2019-11-05$62.63$78.10747,900——
2019-11-04$62.27$77.65599,200——
2019-11-01$61.08$76.17509,500——
2019-10-31$59.92$74.72678,900——
2019-10-30$60.97$76.03367,400——
2019-10-29$60.73$75.73497,400——
2019-10-28$60.05$74.88482,300——
2019-10-25$59.60$74.32541,400——
2019-10-24$59.74$74.501,210,500——
2019-10-23$57.29$71.44984,900——
2019-10-22$57.48$71.68506,500——
2019-10-21$58.60$73.07444,100——
2019-10-18$58.70$73.20488,000——
2019-10-17$58.62$73.10828,400——
2019-10-16$58.79$73.31767,900——
2019-10-15$59.54$74.25458,000——
2019-10-14$58.82$73.35503,000——
2019-10-11$59.16$73.77627,800——
2019-10-10$58.56$73.02551,600——
2019-10-09$57.87$72.16453,000——
2019-10-08$57.49$71.69496,300——
2019-10-07$58.05$72.39578,500——
2019-10-04$57.96$72.28517,500——
2019-10-03$56.55$70.52392,600——
2019-10-02$56.40$70.33376,100——
2019-10-01$57.74$72.00512,000——
2019-09-30$59.26$73.90486,300——
2019-09-27$58.94$73.50314,700——
2019-09-26$59.10$73.70320,600——
2019-09-25$59.51$74.21495,200——
2019-09-24$58.70$73.20653,800——
2019-09-23$59.57$74.28403,600——
2019-09-20$59.19$73.811,249,200——
2019-09-19$60.14$74.99443,800——
2019-09-18$60.24$75.12536,800——
2019-09-17$59.91$74.71441,700——
2019-09-16$60.59$75.55325,500——
2019-09-13$60.63$75.60395,700——
2019-09-12$60.74$75.74351,000——
2019-09-11$60.71$75.70469,500——
2019-09-10$59.99$74.81392,300——
2019-09-09$59.81$74.58342,400——
2019-09-06$58.87$73.41296,300——
2019-09-05$58.81$73.34370,600——
2019-09-04$57.38$71.55311,300——
2019-09-03$56.57$70.54463,300——
2019-08-30$57.51$71.71289,800——
2019-08-29$57.25$71.39177,500——
2019-08-28$56.13$69.99239,000——
2019-08-27$55.83$69.62413,300——
2019-08-26$55.70$69.46442,100——
2019-08-23$55.38$69.06382,500——
2019-08-22$56.82$70.85255,300——
2019-08-21$56.95$71.02244,200——
2019-08-20$56.59$70.57246,200——
2019-08-19$57.17$71.29178,400——
2019-08-16$56.56$70.53271,900——
2019-08-15$55.52$69.23358,500——
2019-08-14$55.68$69.43288,700——
2019-08-13$57.60$71.83300,400——
2019-08-12$56.81$70.84357,700——
2019-08-09$57.51$71.71294,900——
2019-08-08$57.92$72.23597,000——
2019-08-07$57.46$71.65562,300——
2019-08-06$56.94$71.00530,900——
2019-08-05$55.75$69.52578,100——
2019-08-02$57.67$71.91471,600——
2019-08-01$58.45$72.89992,800——
2019-07-31$59.59$74.31965,700——
2019-07-30$60.41$75.33563,700——
2019-07-29$60.40$75.32394,100——
2019-07-26$60.90$75.94703,000——
2019-07-25$59.68$74.42708,800——
2019-07-24$58.77$73.29640,300——
2019-07-23$57.75$72.01522,000——
2019-07-22$56.50$70.45287,900——
2019-07-19$56.57$70.54383,000——
2019-07-18$56.26$70.16438,900——
2019-07-17$55.94$69.76544,100——
2019-07-16$56.39$70.32383,000——
2019-07-15$56.40$70.33551,300——
2019-07-12$56.88$70.93484,200——
2019-07-11$56.10$69.96393,700——
2019-07-10$56.03$69.87336,200——
2019-07-09$55.99$69.82412,100——
2019-07-08$55.73$69.49385,000——
2019-07-05$56.63$70.62308,700——
2019-07-03$56.70$70.70253,100——
2019-07-02$56.28$70.18380,200——
2019-07-01$56.66$70.65474,300——
2019-06-28$56.10$69.961,839,200——
2019-06-27$55.36$69.03561,500——
2019-06-26$54.59$68.07513,900——
2019-06-25$54.02$67.36534,100——
2019-06-24$54.55$68.02615,800——
2019-06-21$54.41$67.85920,300——
2019-06-20$55.12$68.73582,200——
2019-06-19$54.63$68.12545,000——
2019-06-18$54.34$67.76480,800——
2019-06-17$53.28$66.44516,500——
2019-06-14$53.93$67.25408,400——
2019-06-13$53.99$67.32650,800——
2019-06-12$53.88$67.19928,300——
2019-06-11$54.58$68.06591,000——
2019-06-10$54.63$67.71538,300——
2019-06-07$53.84$66.73420,500——
2019-06-06$53.20$65.94584,800——
2019-06-05$53.12$65.84643,400——
2019-06-04$51.96$64.40766,500——
2019-06-03$50.30$62.34392,200——
2019-05-31$50.25$62.28692,000——
2019-05-30$50.88$63.06386,500——
2019-05-29$51.17$63.42535,700——
2019-05-28$50.95$63.15953,100——
2019-05-24$52.04$64.50374,200——
2019-05-23$51.49$63.82471,000——
2019-05-22$52.36$64.90627,200——
2019-05-21$52.53$65.11679,300——
2019-05-20$51.33$63.62282,500——
2019-05-17$51.34$63.63627,600——
2019-05-16$51.73$64.12404,200——
2019-05-15$51.24$63.51558,500——
2019-05-14$51.45$63.77602,600——
2019-05-13$50.39$62.46965,500——
2019-05-10$52.93$65.60466,900——
2019-05-09$52.60$65.20747,700——
2019-05-08$52.85$65.51806,000——
2019-05-07$53.17$65.90567,200——
2019-05-06$53.90$66.81608,000——
2019-05-03$53.65$66.50563,300——
2019-05-02$53.62$66.46536,600——
2019-05-01$53.72$66.58405,800——
2019-04-30$54.45$67.491,003,900——
2019-04-29$54.41$67.44729,800——
2019-04-26$53.87$66.77930,000——
2019-04-25$53.29$66.051,626,500——
2019-04-24$57.00$70.651,250,400——
2019-04-23$57.48$71.241,786,300——
2019-04-22$56.43$69.941,108,200——
2019-04-18$58.34$72.31377,400——
2019-04-17$58.04$71.94714,300——
2019-04-16$57.96$71.84508,900——
2019-04-15$56.98$70.62420,200——
2019-04-12$57.37$71.11434,800——
2019-04-11$56.23$69.69676,700——
2019-04-10$56.06$69.48509,300——
2019-04-09$55.03$68.21492,300——
2019-04-08$55.69$69.03441,200——
2019-04-05$55.43$68.70521,800——
2019-04-04$55.13$68.33713,800——
2019-04-03$54.35$67.36623,700——
2019-04-02$54.15$67.12738,700——
2019-04-01$53.96$66.88627,900——
2019-03-29$52.25$64.76717,300——
2019-03-28$52.04$64.50467,000——
2019-03-27$51.20$63.46451,800——
2019-03-26$50.90$63.09648,900——
2019-03-25$50.24$62.27453,900——
2019-03-22$50.36$62.42751,300——
2019-03-21$52.27$64.79825,200——
2019-03-20$51.63$63.99722,900——
2019-03-19$52.34$64.87558,900——
2019-03-18$52.73$65.36760,300——
2019-03-15$52.39$64.941,487,700——
2019-03-14$51.51$63.84737,600——
2019-03-13$51.52$63.86643,000——
2019-03-12$50.85$63.03737,800——
2019-03-11$50.92$63.11446,400——
2019-03-08$50.12$62.12594,900——
2019-03-07$50.05$62.031,004,600——
2019-03-06$50.94$63.14480,300——
2019-03-05$51.77$64.17806,500——
2019-03-04$52.74$65.37634,800——
2019-03-01$52.90$65.57643,500——
2019-02-28$52.75$65.38631,700——
2019-02-27$52.79$65.43510,200——
2019-02-26$52.72$65.34569,500——
2019-02-25$52.68$65.29705,300——
2019-02-22$52.65$65.26325,600——
2019-02-21$52.32$64.85472,300——
2019-02-20$52.57$65.16520,800——
2019-02-19$52.48$65.051,141,300——
2019-02-15$52.17$64.661,127,000——
2019-02-14$51.11$63.35733,600——
2019-02-13$51.15$63.40703,800——
2019-02-12$50.69$62.83727,000——
2019-02-11$49.69$61.59884,800——
2019-02-08$49.33$61.14582,000——
2019-02-07$49.50$61.35722,300——
2019-02-06$49.57$61.44788,900——
2019-02-05$49.81$61.74776,500——
2019-02-04$49.64$61.53556,300——
2019-02-01$49.20$60.981,514,500——
2019-01-31$47.54$58.922,048,300——
2019-01-30$48.50$60.11953,700——
2019-01-29$48.70$60.36616,500——
2019-01-28$49.18$60.96871,500——
2019-01-25$49.30$61.11617,900——
2019-01-24$48.83$60.52900,900——
2019-01-23$48.83$60.52727,000——
2019-01-22$48.58$60.21795,800——
2019-01-18$49.33$61.14521,600——
2019-01-17$48.66$60.311,014,800——
2019-01-16$48.13$59.65721,500——
2019-01-15$46.68$57.86719,700——
2019-01-14$46.85$58.071,353,200——
2019-01-11$46.54$57.68778,200——
2019-01-10$47.42$58.77603,600——
2019-01-09$46.96$58.20655,300——
2019-01-08$46.70$57.88613,400——
2019-01-07$46.28$57.36689,600——
2019-01-04$46.01$57.03522,400——
2019-01-03$44.41$55.04776,500——
2019-01-02$46.07$57.10614,100——