SEI Index Fd, S&P 500 Index Fund Class I (SPIIX) NASDAQ

Currency In USD

SPIIX Historical Return

If you invested $1000 in SEI Index Fd, S&P 500 Index Fund Class I (SPIIX) 10 years ago, it would be worth $2,551.2 as of August 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,332.14, while $1000 invested 1 year ago would be worth $1,187.44. This corresponds to total returns of 155.12%, 33.21%, 18.74%, respectively, with annualized returns of 9.81%, 5.9%, 18.74%.

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

SPIIX Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low
August 21, 2026	114.6	114.6	114.6	114.6	114.6
August 20, 2026	115.59	115.59	115.59	115.59	115.59
August 19, 2026	115.34	115.34	115.34	115.34	115.34
August 18, 2026	116.14	116.14	116.14	116.14	116.14
August 17, 2026	116.74	116.74	116.74	116.74	116.74
August 14, 2026	116.24	116.93	116.93	116.93	116.24
August 13, 2026	116.17	116.17	116.17	116.17	116.17
August 12, 2026	116.24	115.87	115.87	116.24	115.87
August 11, 2026	116.24	116.24	116.24	116.24	116.24
August 10, 2026	116.3	116.3	116.3	116.3	116.3
August 07, 2026	115.58	115.58	115.58	115.58	115.58
August 06, 2026	115.79	115.79	115.79	115.79	115.79
August 05, 2026	115.99	115.99	115.99	115.99	115.99
August 04, 2026	113.95	113.95	113.95	113.95	113.95
August 03, 2026	112.29	112.29	112.29	112.29	112.29
July 31, 2026	111.5	111.5	111.5	111.5	111.5
July 30, 2026	109.68	109.68	109.68	109.68	109.68
July 29, 2026	111.37	111.37	111.37	111.37	111.37
July 28, 2026	111.14	111.14	111.14	111.14	111.14
July 27, 2026	111.12	111.12	111.12	111.12	111.12
July 23, 2026	112.42	112.42	112.42	112.42	112.42
July 22, 2026	112.57	112.57	112.57	112.57	112.57
July 21, 2026	111.59	111.59	111.59	111.59	111.59
July 20, 2026	111.81	111.81	111.81	111.81	111.81
July 17, 2026	112.95	112.95	112.95	112.95	112.95
July 16, 2026	113.53	113.53	113.53	113.53	113.53
July 15, 2026	113.09	113.09	113.09	113.09	113.09
July 14, 2026	112.67	112.67	112.67	112.67	112.67
July 13, 2026	113.57	113.57	113.57	113.57	113.57
July 10, 2026	113.09	113.09	113.09	113.09	113.09
July 09, 2026	112.17	112.17	112.17	112.17	112.17
July 08, 2026	112.49	112.49	112.49	112.49	112.49
July 07, 2026	113	113	113	113	113
July 06, 2026	112.32	112.32	112.32	112.32	112.32
July 02, 2026	112.32	112.32	112.32	112.32	112.32
July 01, 2026	112.55	112.55	112.55	112.55	112.55
June 30, 2026	111.66	111.66	111.66	111.66	111.66
June 29, 2026	110.37	110.37	110.37	110.37	110.37
June 26, 2026	110.42	110.42	110.42	110.42	110.42
June 25, 2026	110.43	110.43	110.43	110.43	110.43
June 24, 2026	110.54	110.54	110.54	110.54	110.54
June 23, 2026	112.15	112.15	112.15	112.15	112.15
June 22, 2026	112.57	112.57	112.57	112.57	112.57
June 18, 2026	111.36	111.36	111.36	111.36	111.36
June 17, 2026	112.73	112.73	112.73	112.73	112.73
June 16, 2026	113.37	113.37	113.37	113.37	113.37
June 15, 2026	111.51	111.51	111.51	111.51	111.51
June 12, 2026	110.95	110.95	110.95	110.95	110.95
June 11, 2026	109.04	109.04	109.04	109.04	109.04
June 10, 2026	110.84	110.84	110.84	110.84	110.84
June 09, 2026	111.12	111.12	111.12	111.12	111.12
June 08, 2026	110.8	110.8	110.8	110.8	110.8
June 05, 2026	113.79	113.79	113.79	113.79	113.79
June 04, 2026	113.31	113.31	113.31	113.31	113.31
June 03, 2026	114.15	114.15	114.15	114.15	114.15
June 02, 2026	114.01	114.01	114.01	114.01	114.01
June 01, 2026	113.7	113.7	113.7	113.7	113.7
May 29, 2026	113.45	113.45	113.45	113.45	113.45
May 28, 2026	112.8	112.8	112.8	112.8	112.8
May 27, 2026	112.78	112.78	112.78	112.78	112.78