SEI Investments Company (SEIC) NASDAQ

Currency In USD

SEIC Historical Return

If you invested $1000 in SEI Investments Company (SEIC) 10 years ago, it would be worth $2,655.99 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,901.65, while $1000 invested 1 year ago would be worth $1,243.81. This corresponds to total returns of 165.6%, 90.17%, 24.38%, respectively, with annualized returns of 10.26%, 13.72%, 24.38%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

SEIC Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	107.91	106.93	106.93	108.94	105.69	573,907
September 10, 2026	107.19	106.77	106.77	107.87	106.32	543,998
September 09, 2026	108.38	107.17	107.17	108.51	106.82	667,682
September 08, 2026	110.33	108.6	108.6	110.75	108.5	846,053
September 04, 2026	110.57	110.39	110.39	111.16	109.83	584,844
September 03, 2026	110	111.46	111.46	111.48	109.75	749,883
September 02, 2026	109.7	109.12	109.12	110.5	108.1	668,137
September 01, 2026	110.57	109.54	109.54	111.15	109.42	649,594
August 31, 2026	111.46	110.98	110.98	111.63	110.46	716,371
August 28, 2026	111.68	111.63	111.63	112.15	111.18	660,725
August 27, 2026	110.27	111.3	111.3	111.43	109.89	710,085
August 26, 2026	110.98	110.78	110.78	111.43	110.34	609,939
August 25, 2026	110.43	110.98	110.98	111.5	109.9	646,258
August 24, 2026	109.75	110.75	110.75	111.9	109.62	866,711
August 21, 2026	108.26	109.53	109.53	109.75	108.19	801,150
August 20, 2026	107.75	107.6	107.6	109.11	107.43	600,758
August 19, 2026	106.76	107.36	107.36	108.04	106.76	646,769
August 18, 2026	106.25	106.92	106.92	107.46	105.53	489,653
August 17, 2026	105.96	105.47	105.47	106.93	105.29	484,712
August 14, 2026	106.52	106.38	106.38	106.91	105.96	362,095
August 13, 2026	106	106.39	106.39	106.86	104.76	486,561
August 12, 2026	104.17	105.54	105.54	105.65	103.96	509,735
August 11, 2026	104.77	104.63	104.63	105.95	104.16	497,690
August 10, 2026	104.7	104.72	104.72	106	104.27	457,935
August 07, 2026	104.5	104.7	104.7	104.98	103.64	472,628
August 06, 2026	105.5	104.69	104.69	107	104.06	583,491
August 05, 2026	105.5	104.76	104.76	106	104.45	591,996
August 04, 2026	104.33	104.72	104.72	105.53	104.26	725,571
August 03, 2026	103.47	104.19	104.19	104.38	102.59	602,893
July 31, 2026	102.19	102.98	102.98	103.35	101.11	824,238
July 30, 2026	102.54	103.04	103.04	103.11	101.1	505,215
July 29, 2026	102.81	102.88	102.88	104.47	102.23	649,732
July 28, 2026	102.05	103.14	103.14	103.75	100.45	871,065
July 27, 2026	99.22	101.52	101.52	101.76	99.16	795,149
July 23, 2026	102.29	96.73	96.73	102.29	95.4	1.37M
July 22, 2026	97.65	98.75	98.75	98.88	97.13	815,512
July 21, 2026	99.37	97.65	97.65	99.6	97.35	866,845
July 20, 2026	99.29	99.37	99.37	99.61	98.23	834,717
July 17, 2026	99.93	99.25	99.25	100.79	98.61	866,926
July 16, 2026	97.73	100.26	100.26	100.28	97.73	1.54M
July 15, 2026	95.37	98.17	98.17	98.58	95.37	955,627
July 14, 2026	95.4	94.89	94.89	96.77	94.73	781,173
July 13, 2026	96.14	96.18	96.18	96.73	95.29	499,363
July 10, 2026	95.8	95.45	95.45	96.41	94.7	600,156
July 09, 2026	94.48	94.73	94.73	96.6	92.47	723,127
July 08, 2026	95.32	94.51	94.51	95.9	93.62	709,306
July 07, 2026	95.66	95.94	95.94	96.19	94.9	633,026
July 06, 2026	91.2	94.99	94.99	95.61	91.2	691,290
July 02, 2026	90.57	91.43	91.43	92	90.5	730,646
July 01, 2026	87.71	90.05	90.05	91.06	87.66	577,272
June 30, 2026	86.59	87.71	87.71	88.12	86.11	564,863
June 29, 2026	87.43	86.49	86.49	88.44	85.94	617,697
June 26, 2026	88.07	87.25	87.25	88.45	86.39	1.21M
June 25, 2026	89.41	87.93	87.93	90.97	87.82	554,256
June 24, 2026	90.69	88.89	88.89	90.69	88.57	527,972
June 23, 2026	90.93	90.21	90.21	91.5	89.72	578,332
June 22, 2026	89.91	90.51	90.51	90.79	89.01	512,242
June 18, 2026	91.95	89.44	89.44	91.95	88.76	1.71M
June 17, 2026	90.36	91.01	91.01	91.54	90.13	647,691
June 16, 2026	90.43	90.73	90.73	91.49	89.06	622,455