SEI Investments Company (SEIC)

NASDAQ: SEIC · Real-Time Price · USD

89.44

-1.57 (-1.73%)

At close: Jun 18, 2026, 4:00 PM EDT

89.44

0.00 (0.00%)

After-hours: Jun 18, 2026, 4:23 PM EDT

SEI Investments Company Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 18, 2026	91.95	91.95	88.76	89.44	89.44	-1.73%	1,712,022
Jun 17, 2026	90.36	91.54	90.13	91.01	91.01	0.31%	647,691
Jun 16, 2026	90.43	91.49	89.06	90.73	90.73	1.30%	628,122
Jun 15, 2026	89.87	90.52	89.32	89.57	89.57	0.19%	551,028
Jun 12, 2026	88.71	89.78	88.05	89.40	89.40	1.42%	500,772
Jun 11, 2026	88.84	89.37	87.66	88.15	88.15	-0.73%	407,576
Jun 10, 2026	90.26	90.89	88.76	88.80	88.80	-1.62%	441,150
Jun 9, 2026	88.95	91.40	88.69	90.26	90.26	2.29%	750,118
Jun 8, 2026	88.36	89.39	87.81	88.24	88.24	-0.74%	511,862
Jun 5, 2026	88.93	89.67	88.70	89.42	88.90	0.95%	708,922
Jun 4, 2026	87.85	89.29	87.85	88.58	88.06	1.80%	505,556
Jun 3, 2026	87.39	87.55	86.26	87.01	86.50	-0.87%	600,096
Jun 2, 2026	88.32	88.74	87.39	87.77	87.26	-0.62%	516,127
Jun 1, 2026	87.75	88.77	87.45	88.32	87.81	0.50%	520,118
May 29, 2026	88.32	89.12	87.56	87.88	87.37	-0.81%	1,181,178
May 28, 2026	89.57	89.57	87.96	88.60	88.08	-1.20%	696,207
May 27, 2026	90.88	91.27	89.53	89.68	89.16	-1.19%	404,090
May 26, 2026	90.77	91.10	90.14	90.76	90.23	0.25%	557,512
May 22, 2026	90.00	91.11	89.53	90.53	90.00	1.05%	527,758
May 21, 2026	90.26	90.89	88.73	89.59	89.07	-1.30%	624,843
May 20, 2026	91.20	91.48	89.94	90.77	90.24	-0.30%	668,883
May 19, 2026	91.93	92.58	90.93	91.04	90.51	-1.05%	596,704
May 18, 2026	90.49	92.69	90.34	92.01	91.47	1.58%	661,699
May 15, 2026	92.06	92.06	90.43	90.58	90.05	-1.22%	565,427
May 14, 2026	93.00	93.50	91.45	91.70	91.17	-0.59%	545,450
May 13, 2026	91.81	92.60	91.09	92.24	91.70	-0.05%	535,244
May 12, 2026	91.00	93.00	90.53	92.29	91.75	0.76%	983,894
May 11, 2026	91.18	91.89	90.35	91.59	91.06	0.45%	592,384
May 8, 2026	89.99	91.21	88.78	91.18	90.65	1.44%	481,386
May 7, 2026	91.31	92.12	89.65	89.89	89.37	-1.40%	602,507
May 6, 2026	91.26	91.84	90.66	91.17	90.64	0.42%	772,520
May 5, 2026	91.28	91.81	90.53	90.79	90.26	-0.53%	696,793
May 4, 2026	90.19	91.96	89.63	91.27	90.74	1.16%	735,805
May 1, 2026	91.18	91.18	89.79	90.22	89.70	-0.51%	844,006
Apr 30, 2026	90.17	91.27	89.70	90.68	90.15	-0.21%	1,275,507
Apr 29, 2026	91.49	91.74	89.99	90.87	90.34	-0.70%	932,900
Apr 28, 2026	91.16	92.21	90.30	91.51	90.98	0.49%	1,292,823
Apr 27, 2026	88.80	91.14	88.29	91.06	90.53	2.50%	1,184,975
Apr 24, 2026	91.05	91.47	87.66	88.84	88.32	-2.43%	1,516,910
Apr 23, 2026	89.14	92.87	87.70	91.05	90.52	7.38%	2,446,538
Apr 22, 2026	83.71	84.89	82.66	84.79	84.30	1.98%	1,507,232
Apr 21, 2026	81.14	83.62	81.14	83.14	82.66	2.13%	1,719,082
Apr 20, 2026	79.68	81.80	79.68	81.41	80.94	2.03%	1,411,853
Apr 17, 2026	79.92	81.00	79.27	79.79	79.33	1.09%	1,150,404
Apr 16, 2026	80.11	80.59	78.47	78.93	78.47	-1.35%	1,101,033
Apr 15, 2026	80.23	81.16	79.79	80.01	79.54	0.26%	880,256
Apr 14, 2026	78.98	80.88	78.98	79.80	79.34	1.27%	746,358
Apr 13, 2026	76.45	78.86	76.35	78.80	78.34	2.36%	974,421
Apr 10, 2026	76.89	77.13	75.87	76.98	76.53	-0.12%	1,000,013
Apr 9, 2026	77.66	77.96	76.44	77.07	76.62	-1.00%	881,609