Vanguard Index Funds - Vanguard Mid-Cap ETF
US ˙ ARCA ˙ US9229086296

SecurityVO / Vanguard Index Funds - Vanguard Mid-Cap ETF
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership76,558 shares
Latest Disclosed Value $ 21,986,018
Quantinno Capital Management LP reports 18.66% increase in ownership of VO / Vanguard Index Funds - Vanguard Mid-Cap ETF

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 76,558 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF (US:VO) valued at $21,985,926 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 64,518 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF. This represents a change in shares of 18.66% during the quarter. The current value of the position is $6,138,420 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 76,558 12,040 18.66 21,986 17.42 0.0367
2026-02-17 2025-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 64,518 13,276 25.91 18,724 24.40 0.0376
2025-11-14 2025-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 51,242 27,639 117.10 15,052 127.92 0.0411
2025-08-14 2025-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 23,603 9,108 62.84 6,605 76.20 0.0285
2025-05-12 2025-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 14,495 4,839 50.11 3,749 46.98 0.0244
2025-02-14 2024-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 9,656 2,830 41.46 2,550 41.59 0.0251
2024-11-14 2024-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 6,826 4,855 246.32 1,801 277.57 0.0234
2024-08-14 2024-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 1,971 -321 -14.01 477 -16.75 0.0086
2024-05-14 2024-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 2,292 -1,853 -44.70 573 -40.56 0.0125
2024-02-14 2023-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 4,145 1,360 48.83 964 66.21 0.0337
2023-11-14 2023-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 2,785 385 16.04 580 9.85 0.0264
2023-08-04 2023-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 2,400 2,400 528 0.0302
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.