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Vanguard Institutional Index Fund Institutional (VIIIX)

[[ item.lastPrice ]] [[ item.priceChange ]] ([[ item.percentChange ]]) [[ item.tradeTime ]] [FUND]
[[ rootItem.symbol ]]underlying price [[ rootItem.lastPrice ]] [[ rootItem.priceChange ]] ([[ rootItem.percentChange ]]) [[ rootItem.tradeTime ]]
Performance Report for [[ item.sessionDateDisplayLong ]]
[[ chartTitle ]]

Price Performance

Price History
Period Period Low Period High Performance
5-Day
589.49 +2.28%
on 05/19/26
602.92 unch
on 05/26/26
+9.50 (+1.60%)
since 05/18/26
1-Month
571.59 +5.48%
on 04/29/26
602.92 unch
on 05/26/26
+29.00 (+5.05%)
since 04/24/26
3-Month
507.80 +18.73%
on 03/30/26
602.92 unch
on 05/26/26
+50.52 (+9.15%)
since 02/26/26
6-Month
507.80 +18.73%
on 03/30/26
602.92 unch
on 05/26/26
+59.84 (+11.02%)
since 11/26/25
YTD
507.80 +18.73%
on 03/30/26
602.92 unch
on 05/26/26
+56.56 (+10.35%)
since 12/31/25
52-Week
466.56 +29.23%
on 05/28/25
602.92 unch
on 05/26/26
+143.20 (+31.15%)
since 05/23/25
2-Year
394.09 +52.99%
on 04/08/25
602.92 unch
on 05/26/26
+188.07 (+45.34%)
since 05/24/24
3-Year
319.15 +88.91%
on 10/23/23
602.92 unch
on 05/25/26
+272.86 (+82.67%)
since 05/29/23
5-Year
272.67 +121.12%
on 10/10/22
602.92 unch
on 05/25/26
+286.85 (+90.76%)
since 05/31/21
10-Year
139.37 +332.61%
on 06/01/16
602.92 unch
on 05/01/26
+457.03 (+313.27%)
since 05/01/16
20-Year
40.70 +1,381.37%
on 03/01/09
602.92 unch
on 05/01/26
+531.08 (+739.22%)
since 05/01/06

52-Week Key Points

52-Wk Low
466.56
52-Wk High
602.92
52-Week High 602.92
Last Price 602.92
Fibonacci 61.8% 550.83
Fibonacci 50% 534.74
Fibonacci 38.2% 518.65
52-Week Low 466.56

See More

VIIIX Daily Price Range

Day Low
602.92
Day High
602.92
Last Price: 602.92
Daily Closing Range: 0.00%
Close to Close %Change: +0.62%
Close to Open %Change: unch
High to Low %Change: unch
Open to Previous %Change: +0.62%
Gap Up Today %Change +0.62%

New Highs

Period
Made
New high
Percent
From Last
5-Day 5 times unch
1-Month 10 times unch
3-Month 19 times unch
6-Month 28 times unch
YTD 22 times unch
52-Week 70 times unch
2-Year 100 times unch
3-Year 74 times unch
5-Year 86 times unch
10-Year 68 times unch
20-Year 113 times unch

New Lows

Period
Made
New low
Percent
From Last
5-Day 1 time +2.28%
1-Month 3 times +5.48%
3-Month 11 times +18.73%
6-Month 12 times +18.73%
YTD 11 times +18.73%
52-Week 2 times +29.23%
2-Year 7 times +52.99%
3-Year 4 times +88.91%
5-Year 7 times +121.12%
10-Year 1 time +332.61%
20-Year 6 times +1,381.37%
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