Skip to main content
VIOO logo

VIOO · VANGUARD S&P SMALL-CAP 600 INDEX FUND ETF

Alerts for VIOO
$134.78 +0.47 (+0.35%) At close · Sep 4

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 5
Total Value: $13,665,148
Total Shares: 99,354

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 5 13F filers · Δ vs Mar 31, 2026
Top Holder
93.2%
Sep 2023 → Jun 2026 · range 8.4% – 93.2%
+75.1 pts
Top 5
100.0%
Sep 2023 → Jun 2026 · range 29.8% – 100.0%
+39.2 pts
Top 10
100.0%
Sep 2023 → Jun 2026 · range 44.4% – 100.0%
+16.2 pts
HHI
8,719
Sep 2023 → Jun 2026 · range 283 – 8,719
Highly concentrated+7,754

Quarterly Activity

vs Mar 31, 2026
New
2
Increased
1
Decreased
1
Sold Out
83
Unchanged
1
Holder count: -81
Institutional value: -97.6%
Shares held: -98.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 5 of 5
Export CSV
Holder Value (USD) % of 13F Shares Open