MainStay S&P 500 Index Fund Investor Class (MYSPX) NASDAQ

Currency In USD

MYSPX Historical Return

If you invested $1000 in MainStay S&P 500 Index Fund Investor Class (MYSPX) 10 years ago, it would be worth $3,791.31 as of June 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,774.08, while $1000 invested 1 year ago would be worth $1,246.51. This corresponds to total returns of 279.13%, 77.41%, 24.65%, respectively, with annualized returns of 14.25%, 12.14%, 24.65%.

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

MYSPX Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low
June 22, 2026	79.69	79.69	79.69	79.69	79.69
June 18, 2026	78.83	78.83	78.83	78.83	78.83
June 17, 2026	79.79	79.79	79.79	79.79	79.79
June 16, 2026	80.25	80.25	80.25	80.25	80.25
June 15, 2026	78.93	78.93	78.93	78.93	78.93
June 12, 2026	78.93	78.93	78.93	78.93	78.93
June 11, 2026	78.53	78.53	78.53	78.53	78.53
June 10, 2026	78.45	78.45	78.45	78.45	78.45
June 09, 2026	78.65	78.65	78.65	78.65	78.65
June 08, 2026	78.42	78.42	78.42	78.42	78.42
June 05, 2026	80.54	80.54	80.54	80.54	80.54
June 04, 2026	80.2	80.2	80.2	80.2	80.2
June 03, 2026	80.8	80.8	80.8	80.8	80.8
June 02, 2026	80.8	80.8	80.8	80.8	80.8
June 01, 2026	80.48	80.48	80.48	80.48	80.48
May 29, 2026	80.3	80.3	80.3	80.3	80.3
May 28, 2026	79.84	79.84	79.84	79.84	79.84
May 27, 2026	79.83	79.83	79.83	79.83	79.83
May 26, 2026	79.35	79.35	79.35	79.35	79.35
May 22, 2026	79.05	79.05	79.05	79.05	79.05
May 21, 2026	78.91	78.91	78.91	78.91	78.91
May 20, 2026	78.07	78.07	78.07	78.07	78.07
May 19, 2026	78.59	78.59	78.59	78.59	78.59
May 18, 2026	78.64	78.64	78.64	78.64	78.64
May 15, 2026	79.61	79.61	79.61	79.61	79.61
May 14, 2026	79.01	79.01	79.01	79.01	79.01
May 13, 2026	78.55	78.55	78.55	78.55	78.55
May 12, 2026	78.55	78.55	78.55	78.55	78.55
May 11, 2026	78.52	78.52	78.52	78.52	78.52
May 08, 2026	77.86	77.86	77.86	77.86	77.86
May 07, 2026	78.16	78.16	78.16	78.16	78.16
May 06, 2026	78.16	78.16	78.16	78.16	78.16
May 05, 2026	77.04	77.04	77.04	77.04	77.04
May 04, 2026	76.73	76.73	76.73	76.73	76.73
May 01, 2026	76.5	76.5	76.5	76.5	76.5
April 30, 2026	75.73	75.73	75.73	75.73	75.73
April 29, 2026	75.76	75.76	75.76	75.76	75.76
April 28, 2026	76.13	76.13	76.13	76.13	76.13
April 27, 2026	76.13	76.13	76.13	76.13	76.13
April 24, 2026	75.44	75.44	75.44	75.44	75.44
April 23, 2026	75.75	75.75	75.75	75.75	75.75
April 22, 2026	75.75	75.75	75.75	75.75	75.75
April 21, 2026	75.45	75.45	75.45	75.45	75.45
April 20, 2026	75.63	75.63	75.63	75.63	75.63
April 17, 2026	74.73	74.73	74.73	74.73	74.73
April 16, 2026	74.54	74.54	74.54	74.54	74.54
April 15, 2026	73.95	73.95	73.95	73.95	73.95
April 14, 2026	73.08	73.08	73.08	73.08	73.08
April 13, 2026	73.08	73.08	73.08	73.08	73.08
April 10, 2026	72.43	72.43	72.43	72.43	72.43
April 09, 2026	71.98	71.98	71.98	71.98	71.98
April 08, 2026	70.22	70.22	70.22	70.22	70.22
April 07, 2026	70.22	70.22	70.22	70.22	70.22
April 06, 2026	69.86	69.86	70.17	69.86	69.86
April 02, 2026	69.78	69.78	69.86	69.78	69.78
April 01, 2026	69.28	69.28	69.78	69.28	69.28
March 31, 2026	67.32	67.32	69.28	67.32	67.32
March 30, 2026	67.59	67.59	67.32	67.59	67.59
March 27, 2026	68.74	68.74	67.59	68.74	68.74
March 26, 2026	69.95	69.95	68.74	69.95	69.95