IMC Chicago Portfolio holdings
IMC-Chicago, a key arm of IMC Trading founded in 1989 by Rob Defares and René Schelvis in Amsterdam, is a proprietary trading firm and market maker headquartered in Chicago since opening its first overseas office there in 2000. Employing over 650 of IMC’s 1,600+ global workforce, it operates at the heart of North America’s financial hub, trading equities, options, futures, and other derivatives on major exchanges like the Chicago Mercantile Exchange (CME) and Chicago Board Options Exchange (CBOE). Known for its technology-driven approach, IMC-Chicago leverages advanced algorithms and low-latency systems to provide liquidity across more than 100 global venues, evolving from a trading outfit with strong tech to a tech company that trades. Under CEO Rob Defares, the firm emphasizes innovation, quantitative strategies, and a collaborative culture, making it a powerhouse in the U.S. derivatives market.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Sprott Physical Silver Trust
PSLV
|
+$344M |
| 2 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$297M |
| 3 |
Tesla
TSLA
|
+$235M |
| 4 |
Sprott Physical Gold and Silver Trust
CEF
|
+$177M |
| 5 |
Meta Platforms (Facebook)
META
|
+$120M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$426M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$390M |
| 3 |
NVIDIA
NVDA
|
+$72.8M |
| 4 |
Broadcom
AVGO
|
+$66.7M |
| 5 |
AST SpaceMobile
ASTS
|
+$62.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.58% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Financials | 0.16% |
| 4 | Communication Services | 0.13% |
| 5 | Industrials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
4301
Flex
FLEX
$44.3B
| $391K | ﹤0.01% |
+5,973
| New | +$382K |
|
4302
CALL
Portland General Electric
POR
$6.07B
| $390K | ﹤0.01% |
+7,400
| New | +$380K |
|
4303
Atour Lifestyle Holdings
ATAT
$4.36B
| $390K | ﹤0.01% |
+10,603
| New | +$400K |
|
4304
CALL
Nordic American Tanker
NAT
$1.37B
| $390K | ﹤0.01% |
+66,600
| New | +$315K |
|
4305
CALL
First Trust Natural Gas ETF
FCG
$638M
| $390K | ﹤0.01% |
+12,300
| New | +$332K |
|
4306
PUT
The Greenbrier Companies
GBX
$1.61B
| $390K | ﹤0.01% |
+7,400
| New | +$391K |
|
4307
PUT
National Grid
NGG
$82.6B
| $389K | ﹤0.01% |
+4,600
| New | +$396K |
|
4308
CALL
Banco Santander
SAN
$194B
| $389K | ﹤0.01% |
34,500
+100
| +0.3% | +$1.19K |
|
4309
PUT
Hexcel
HXL
$8.28B
| $388K | ﹤0.01% |
+4,800
| New | +$404K |
|
|
UNIT
4310
PUT
Uniti Group
UNIT
$2.7B
| $388K | ﹤0.01% |
41,400
-21,600
| -34% | -$169K |
|
4311
PUT
California Resources
CRC
$4.79B
| $388K | ﹤0.01% |
+5,600
| New | +$317K |
|
|
NNDM
4312
CALL
Nano Dimension
NNDM
$312M
| $388K | ﹤0.01% |
228,000
-223,000
| -49% | -$406K |
|
4313
PUT
MSC Industrial Direct
MSM
$7.09B
| $388K | ﹤0.01% |
4,200
-49,100
| -92% | -$4.39M |
|
4314
CALL
Element Solutions
ESI
$9.27B
| $386K | ﹤0.01% |
+11,300
| New | +$354K |
|
4315
CALL
DoubleVerify
DV
$1.64B
| $386K | ﹤0.01% |
40,600
+16,300
| +67% | +$167K |
|
4316
PUT
RadNet
RDNT
$4.93B
| $386K | ﹤0.01% |
6,900
-6,500
| -49% | -$444K |
|
4317
Willis Towers Watson
WTW
$27.8B
| $385K | ﹤0.01% |
+1,326
| New | +$407K |
|
4318
CALL
WillScot Mobile Mini Holdings
WSC
$4.92B
| $385K | ﹤0.01% |
22,200
-16,500
| -43% | -$337K |
|
4319
Copa Holdings
CPA
$5.66B
| $385K | ﹤0.01% |
+3,386
| New | +$444K |
|
4320
CALL
Century Communities
CCS
$2.01B
| $384K | ﹤0.01% |
+6,700
| New | +$431K |
|
4321
PUT
FS KKR Capital
FSK
$3B
| $384K | ﹤0.01% |
+37,700
| New | +$472K |
|
4322
PUT
CorMedix
CRMD
$623M
| $384K | ﹤0.01% |
56,500
+8,600
| +18% | +$63.6K |
|
4323
Lightbridge
LTBR
$252M
| $383K | ﹤0.01% |
35,912
-6,633
| -16% | -$92.1K |
|
4324
Eagle Materials
EXP
$6.56B
| $382K | ﹤0.01% |
+2,017
| New | +$429K |
|
4325
PUT
Triumph Financial Inc
TFIN
$1.87B
| $382K | ﹤0.01% |
6,400
-3,800
| -37% | -$238K |
|
Similar funds
IMC Chicago's Q1 2026 Portfolio in Review
As of Q1 2026, IMC Chicago held 6,062 positions worth $278B, up 1.1% from $275B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $22.2B of net new capital in Q1 2026, opening 2,049 new positions and adding to 1,848 existing holdings. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
By sector, the portfolio is most concentrated in Technology at 0.58% of assets, up from 0.56% a quarter earlier, followed by Consumer Discretionary and Financials.
On the sell side, the largest reduction was Broadcom, an estimated $66.7M trimmed.
- IMC Chicago's largest Q1 2026 buy was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
- IMC Chicago added most to Sprott Physical Silver Trust in Q1 2026, an estimated $344M increase.
- IMC Chicago's biggest Q1 2026 reduction was Broadcom, cutting an estimated $66.7M.
- IMC Chicago fully exited Invesco QQQ Trust in Q1 2026, selling an estimated $426M.
- IMC Chicago's ten largest holdings make up 38% of its $278B portfolio in Q1 2026.
- IMC Chicago opened 2,049 new positions and closed 389 in Q1 2026.
- IMC Chicago's portfolio value rose 1.1% quarter-over-quarter to $278B.
Based on IMC Chicago's 13F filing for Q1 2026, filed 5 May 2026.