Vanguard World Fund - Vanguard Mega Cap Growth ETF
US ˙ ARCA ˙ US9219108167

SecurityMGK / Vanguard World Fund - Vanguard Mega Cap Growth ETF
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership1,420 shares
Latest Disclosed Value $ 521,765
Oppenheimer & Co Inc reports 4.41% increase in ownership of MGK / Vanguard World Fund - Vanguard Mega Cap Growth ETF

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 1,420 shares of Vanguard World Fund - Vanguard Mega Cap Growth ETF (US:MGK) valued at $521,765 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,360 shares of Vanguard World Fund - Vanguard Mega Cap Growth ETF. This represents a change in shares of 4.41% during the quarter. The current value of the position is $129,021 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.

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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)
2026-04-23 2026-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,420 60 4.41 522 -7.13 0.0064
2026-02-02 2025-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,360 250 22.52 561 25.78 0.0080
2025-11-06 2025-09-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,110 157 16.47 447 28.16 0.0054
2025-07-31 2025-06-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 953 166 21.09 349 43.21 0.0046
2025-04-23 2025-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 787 -552 -41.22 243 -47.06 0.0037
2025-02-05 2024-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,339 137 11.40 460 18.91 0.0069
2024-11-05 2024-09-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,202 152 14.48 387 17.33 0.0059
2024-08-08 2024-06-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,050 35 3.45 330 13.45 0.0052
2024-05-07 2024-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,015 122 13.66 291 25.54 0.0048
2024-02-13 2023-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 893 893 232 0.0043
2022-08-08 2022-06-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 0 -4,762 -100.00 0 -100.00
2022-05-12 2022-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 4,762 3,949 485.73 1,121 428.77 0.0202
2022-02-02 2021-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 813 813 212 0.0037
2020-05-07 2020-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 0 -2,780 -100.00 0 -100.00
2020-02-07 2019-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 2,780 -576 -17.16 405 -8.99 0.0100
2019-10-31 2019-09-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 3,356 -7 -0.21 445 2.30 0.0121
2019-08-09 2019-06-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 3,363 -1,357 -28.75 435 -25.89 0.0118
2019-04-24 2019-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 4,720 4,720 587 0.0157
2019-01-29 2018-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 0 -1,688 -100.00 0 -100.00
2018-10-26 2018-09-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 1,688 -524 -23.69 216 -17.87 0.0055
2018-08-10 2018-06-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 2,212 -418 -15.89 263 -10.85 0.0071
2018-05-01 2018-03-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 2,630 503 23.65 295 24.47 0.0076
2018-02-07 2017-12-31 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 2,127 -16 -0.75 237 5.80 0.0061
2017-11-09 2017-09-30 13F VANGUARD WORLD FD MEGA GRWTH IND 921910816 2,143 2,143 224 0.0060
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.