Free · no sign-up · Q2 2026

Which funds own STLD

Steel Dynamics Inc in the Q2 2026 filings. At least 6 of the 91 current managers on file reported a position, worth $3.2bn 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: 6; at least, of 91 current
Combined value: $3.2bn; as reported
Opened: 1; new this quarter
Added to: 3; already held
Trimmed or sold out: 2; 0 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	$1.8bn	0.1%	7,720,913	+$978m+3,309,313	Added
Capital Research Global Investors Long-only · $717bn book	$835m	0.1%	3,639,878	+$182m+9,036	Added
Holocene Advisors LP Long/short equity · $44.4bn book	$378m	0.9%	1,648,753	-$34m-640,195	Trimmed
Acadian Asset Management LLC Quantitative · $84.2bn book	$95m	0.1%	414,656	opened414,656	New
Bridgewater Associates LP Macro · $24.4bn book	$87m	0.4%	378,490	+$8.0m-59,589	Trimmed
Voloridge Investment Management LLC Quantitative · $23.5bn book	$52m	0.2%	224,627	+$47m+199,593	Added

Ownership through time

At least 11 of the 95 managers whose filings are on file listed STLD in Q2 2026, against 3 in Q2 2013. The same number as in Q1 2026: 2 started positions; 2 listed it again; 4 no longer listed it among the positions read, which can mean a holding below the listed range 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

Acadian Asset Management LLC$95m
Winton Group Ltd$2.2m

Largest increases, by shares

Fidelity (FMR LLC)4,411,600 to 7,720,913 shares+$759m
Acadian Asset Management LLCnew: 414,656 shares+$95m
Winton Group Ltdnew: 9,500 shares+$2.2m
Capital Research Global Investors3,630,842 to 3,639,878 shares+$2.1m
T. Rowe Price Associates Inc2,122,168 to 2,130,688 shares+$2.0m

Largest decreases, by shares

Holocene Advisors LP2,288,948 to 1,648,753 shares-$147m
Invesco Ltd2,035,801 to 1,843,085 shares-$44m
Neuberger Berman Group LLC514,527 to 437,044 shares-$18m
Bridgewater Associates LP438,079 to 378,490 shares-$14m

Left it

No manager on file is shown leaving it.

Manager	First listed	Largest	Q2 2026
Fidelity (FMR LLC)	Q3 2014	$1.8bn	$1.8bn
Capital Research Global Investors	Q1 2016	$835m	$835m
T. Rowe Price Associates Inc	Q3 2022	$885m	$489m
Invesco Ltd	Q4 2022	$464m	$423m
Holocene Advisors LP	Q1 2018	$434m	$378m
Neuberger Berman Group LLC	Q3 2025	$101m	$101m
Acadian Asset Management LLC	Q4 2013	$169m	$95m
Bridgewater Associates LP	Q1 2014	$87m	$87m
Voloridge Investment Management LLC	Q3 2014	$69m	$52m
Man Group PLC	Q4 2018	$55m	$26m
Winton Group Ltd	Q4 2014	$26m	$2.2m
Wellington Management Group LLP	Q3 2014	$314m	last listed Q4 2022
Capital World Investors	Q2 2013	$314m	last listed Q1 2023
Steadfast Capital Management LP	Q1 2017	$197m	last listed Q2 2025
Citadel Advisors LLC	Q4 2015	$177m	last listed Q2 2021
AQR Capital Management LLC	Q2 2013	$168m	last listed Q2 2025
D. E. Shaw & Co.	Q3 2016	$168m	last listed Q1 2022
Balyasny Asset Management LLC	Q2 2014	$128m	last listed Q1 2026
Millennium Management LLC	Q1 2014	$112m	last listed Q4 2023
Renaissance Technologies LLC	Q2 2016	$86m	last listed Q4 2020
AllianceBernstein LP	Q2 2013	$82m	last listed Q3 2024

What STLD is worth

Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.

Build the comp set around STLD →

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.

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The holdings, every quarter, and the week between

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