Free · no sign-up · Q2 2026

Which funds own IWB

iShares RUS 1000 ETF in the Q2 2026 filings. At least 1 of the 91 current managers on file reported a position, worth $4.1bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. Buying and selling roughly cancelled this quarter, which is what a name looks like when the argument is still live.

Managers holding: 1; at least, of 91 current
Combined value: $4.1bn; as reported
Opened: 0; new this quarter
Added to: 0; already held
Trimmed or sold out: 2; 1 sold out entirely

Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.

Managers reporting a position

Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.

Manager	Value	Weight	Shares	Change on the quarter	Action
Fidelity (FMR LLC) Long-only · $2304bn book	$4.1bn	0.2%	9,942,793	+$485m-117,017	Trimmed

Sold out of this quarter

Valued at what the position was worth in the previous filing, because by this one it is gone.

ARK Investment Management LLC · Long-only$0 held before

Ownership through time

At least 2 of the 95 managers whose filings are on file listed IWB in Q2 2026, against 1 in Q4 2013. 2 managers fewer than in Q1 2026: 1 sold out, by its own filing; 1 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, or a filing not yet made.

Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.

Managers on file listing it

Their combined reported value

Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.

Started in Q2 2026

No manager on file started a position.

Largest increases, by shares

No manager on file bought more.

Largest decreases, by shares

Fidelity (FMR LLC)10,059,810 to 9,942,793 shares-$48m
Capital Research Global Investors1,333 to 611 shares-$293k

Left it

ARK Investment Management LLCwas $0

Manager	First listed	Largest	Q2 2026
Fidelity (FMR LLC)	Q3 2014	$4.1bn	$4.1bn
Capital Research Global Investors	Q1 2026	$462k	$248k
Millennium Management LLC	Q2 2023	$809m	last listed Q1 2026
Two Sigma Investments LP	Q4 2021	$122m	last listed Q3 2025
Two Sigma Advisers LP	Q4 2023	$70m	last listed Q3 2024
Soros Fund Management LLC	Q4 2018	$65m	last listed Q2 2019
Neuberger Berman Group LLC	Q2 2022	$40m	last listed Q2 2022
Jane Street Group LLC	Q1 2015	$36m	last listed Q4 2019
Balyasny Asset Management LLC	Q4 2017	$19m	last listed Q4 2017
Tudor Investment Corp	Q3 2024	$12m	last listed Q3 2024
Squarepoint Ops LLC	Q3 2020	$6.9m	last listed Q3 2020
Moore Capital Management LP	Q1 2022	$705k	last listed Q1 2022

What is inside it

Knowing who bought a fund is half the question. The other half is what the fund holds, which is the manager’s actual exposure rather than the wrapper they reached for.

What IWB holds

How much of the picture this is

A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.

What to do with a name the funds are buying

Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.

Comps ExplorerValue it against the peers it trades beside Every managerRead any of these books in full Deal tapeWhat buyers paid for whole companies, not slices Hedge fund interviewsHow the room runs, and the stock pitch it wants

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The holdings, every quarter, and the week between

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