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Companhia Siderúrgica Nacional
SID

84 hedge funds and large institutions have $45.1M invested in Companhia Siderúrgica Nacional in 2026 Q1 according to their latest regulatory filings, with 20 funds opening new positions, 19 increasing their positions, 35 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

73% more call options, than puts

Call options by funds: $362K | Put options by funds: $209K

11% more first-time investments, than exits

New positions opened: 20 | Existing positions closed: 18

1% more funds holding

Funds holding: 83 → 84 (+1)

0.22% less ownership

Funds ownership: 2.96% → 2.74% (-0.22%)

29% less capital invested

Capital invested by funds: $63.4M → $45.1M (-$18.3M)

46% less repeat investments, than reductions

Existing positions increased: 19 | Existing positions reduced: 35

Holders
84
Holders Change
+1
Holders Change %
+1.2%
% of All Funds
1.03%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
20
Increased
19
Reduced
35
Closed
18
Calls
$362K
Puts
$209K
Net Calls
+$153K
Net Calls Change
+$234K

Top Buyers

1
Renaissance Technologies
Renaissance Technologies
New York
+$2.42M
2
BCV
Banque Cantonale Vaudoise
Switzerland
+$1.31M
3
CM
Caption Management
Oklahoma
+$1.08M
4
American Century Companies
American Century Companies
Missouri
+$925K
5
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$707K

Top Sellers

1
Millennium Management
Millennium Management
New York
-$3.8M
2
Citadel Advisors
Citadel Advisors
Florida
-$1.96M
3
Two Sigma Investments
Two Sigma Investments
New York
-$1.75M
4
Bank of America
Bank of America
North Carolina
-$1.17M
5
Jane Street
Jane Street
New York
-$1.12M
Name Holding Trade Value Shares
Change 		Change in
Stake
Renaissance Technologies
1
Renaissance Technologies
New York
$6.22M +$2.42M +1,481,300 +42%
VCM
2
Vanguard Capital Management
Pennsylvania
$5.5M +$7.24M +4,431,858 New
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$4.43M -$9.47K -5,798 -0.2%
American Century Companies
4
American Century Companies
Missouri
$3.86M +$925K +566,433 +22%
Jane Street
5
Jane Street
New York
$2.3M -$1.12M -685,351 -27%
State Street
6
State Street
Massachusetts
$2.26M +$118K +72,104 +4%
BCV
7
Banque Cantonale Vaudoise
Switzerland
$1.98M +$1.31M +800,000 +100%
UBS Group
8
UBS Group
Switzerland
$1.96M +$510K +312,308 +25%
Goldman Sachs
9
Goldman Sachs
New York
$1.4M -$632K -386,968 -26%
Morgan Stanley
10
Morgan Stanley
New York
$1.29M -$984K -602,627 -37%
Marshall Wace
11
Marshall Wace
United Kingdom
$1.23M +$665K +407,118 +70%
BNP Paribas Financial Markets
12
BNP Paribas Financial Markets
France
$1.13M +$707K +433,177 +90%
Two Sigma Investments
13
Two Sigma Investments
New York
$1.07M -$1.75M -1,074,472 -56%
Millennium Management
14
Millennium Management
New York
$1.04M -$3.8M -2,327,399 -74%
JP Morgan Chase
15
JP Morgan Chase
New York
$1.01M +$117K +71,514 +9%
Citadel Advisors
16
Citadel Advisors
Florida
$1M -$1.96M -1,201,352 -60%
CM
17
Caption Management
Oklahoma
$823K +$1.08M +663,426 New
Northern Trust
18
Northern Trust
Illinois
$693K -$20.4K -12,480 -2%
XT
19
XTX Topco
Cayman Islands
$650K -$358K -219,455 -30%
HF
20
HRT Financial
New York
$593K -$139K -85,364 -15%
BlackRock
21
BlackRock
New York
$519K +$88.3K +54,097 +15%
VanEck Associates
22
VanEck Associates
New York
$482K -$116K -70,945 -15%
BCM
23
Barometer Capital Management
Ontario, Canada
$465K +$588K +359,900 +2,415%
HT
24
Headlands Technologies
Illinois
$465K +$544K +333,122 +800%
VFT
25
Vanguard Fiduciary Trust
Pennsylvania
$363K +$478K +293,007 New
1
2 3 4 5

SID Hedge Fund Activity: Q1 2026 in Review

84 of the 8,125 institutional investors tracked by Wall St. Rank reported a position in Companhia Siderúrgica Nacional (SID) for Q1 2026, worth a combined $45.1M — down 29% from $63.4M a quarter earlier.

Buyers outnumbered sellers: 20 funds opened new SID positions and 18 closed out — a net gain of 2 holders — while 19 added to existing stakes and 35 trimmed.

The largest buyer was Renaissance Technologies, adding an estimated $2.42M. The largest seller was Millennium Management, cutting an estimated $3.8M.

  • 84 institutional investors held Companhia Siderúrgica Nacional (SID) as of Q1 2026, up from 83 in Q4 2025.
  • Funds reported $45.1M of Companhia Siderúrgica Nacional stock for Q1 2026, down 29% quarter-over-quarter.
  • 20 funds opened new Companhia Siderúrgica Nacional positions in Q1 2026 and 18 closed out, a net change of +2 holders.
  • The largest Companhia Siderúrgica Nacional buyer in Q1 2026 was Renaissance Technologies, an estimated $2.42M added.
  • The largest Companhia Siderúrgica Nacional seller in Q1 2026 was Millennium Management, an estimated $3.8M sold.

Based on aggregated 13F filings for Q1 2026.