Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX) NASDAQ

Currency In USD

VIIIX Historical Return

If you invested $1000 in Vanguard Institutional Index Fund (VIIIX) 10 years ago, it would be worth $4,232.96 as of June 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,889.4, while $1000 invested 1 year ago would be worth $1,255.07. This corresponds to total returns of 323.3%, 88.94%, 25.51%, respectively, with annualized returns of 15.51%, 13.56%, 25.51%.

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

VIIIX Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low
June 22, 2026	602.01	602.01	602.01	602.01	602.01
June 18, 2026	595.54	595.54	595.54	595.54	595.54
June 17, 2026	602.86	602.86	602.86	602.86	602.86
June 16, 2026	606.29	606.29	606.29	606.29	606.29
June 15, 2026	596.29	596.29	596.29	596.29	596.29
June 12, 2026	593.28	593.28	593.28	593.28	593.28
June 11, 2026	583.06	583.06	583.06	583.06	583.06
June 10, 2026	592.65	592.65	592.65	592.65	592.65
June 09, 2026	594.16	594.16	594.16	594.16	594.16
June 08, 2026	592.37	592.37	592.37	592.37	592.37
June 05, 2026	608.38	608.38	608.38	608.38	608.38
June 04, 2026	605.81	605.81	605.81	605.81	605.81
June 03, 2026	610.3	610.3	610.3	610.3	610.3
June 02, 2026	609.49	609.49	609.49	609.49	609.49
June 01, 2026	607.85	607.85	607.85	607.85	607.85
May 29, 2026	606.5	606.5	606.5	606.5	606.5
May 28, 2026	603.02	603.02	603.02	603.02	603.02
May 27, 2026	602.92	602.92	602.92	602.92	602.92
May 26, 2026	599.22	599.22	599.22	599.22	599.22
May 22, 2026	596.96	596.96	596.96	596.96	596.96
May 21, 2026	595.87	595.87	595.87	595.87	595.87
May 20, 2026	589.49	589.49	589.49	589.49	589.49
May 19, 2026	593.42	593.42	593.42	593.42	593.42
May 18, 2026	593.82	593.82	593.82	593.82	593.82
May 15, 2026	601.14	601.14	601.14	601.14	601.14
May 14, 2026	596.56	596.56	596.56	596.56	596.56
May 13, 2026	593.07	593.07	593.07	593.07	593.07
May 12, 2026	594	594	594	594	594
May 11, 2026	592.83	592.83	592.83	592.83	592.83
May 08, 2026	587.79	587.79	587.79	587.79	587.79
May 07, 2026	590.03	590.03	590.03	590.03	590.03
May 06, 2026	581.55	581.55	581.55	581.55	581.55
May 05, 2026	576.85	576.85	576.85	576.85	576.85
May 04, 2026	579.17	579.17	579.17	579.17	579.17
May 01, 2026	577.46	577.46	577.46	577.46	577.46
April 30, 2026	571.59	571.59	571.59	571.59	571.59
April 29, 2026	571.82	571.82	571.82	571.82	571.82
April 28, 2026	574.63	574.63	574.63	574.63	574.63
April 27, 2026	573.92	573.92	573.92	573.92	573.92
April 24, 2026	569.35	569.35	569.35	569.35	569.35
April 23, 2026	571.71	571.71	571.71	571.71	571.71
April 22, 2026	565.78	565.78	565.78	565.78	565.78
April 21, 2026	569.4	569.4	569.4	569.4	569.4
April 20, 2026	570.74	570.74	570.74	570.74	570.74
April 17, 2026	563.95	563.95	563.95	563.95	563.95
April 16, 2026	562.47	562.47	562.47	562.47	562.47
April 15, 2026	557.98	557.98	557.98	557.98	557.98
April 14, 2026	551.47	551.47	551.47	551.47	551.47
April 13, 2026	545.91	545.91	545.91	545.91	545.91
April 10, 2026	546.48	546.48	546.48	546.48	546.48
April 09, 2026	543.09	543.09	543.09	543.09	543.09
April 08, 2026	529.81	529.81	529.81	529.81	529.81
April 07, 2026	529.81	529.81	529.81	529.81	529.81
April 06, 2026	527.03	527.03	529.4	527.03	527.03
April 02, 2026	527.03	527.03	527.03	527.03	527.03
April 01, 2026	522.63	522.63	526.4	522.63	522.63
March 31, 2026	507.8	507.8	522.63	507.8	507.8
March 30, 2026	509.81	509.81	507.8	509.81	509.81
March 27, 2026	518.46	518.46	509.81	518.46	518.46
March 26, 2026	527.64	527.64	518.46	527.64	527.64