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 | |
|---|---|---|---|---|---|---|
4851
Descartes Systems
DSGX
$5.84B
| $231K | ﹤0.01% |
+3,226
| New | +$238K |
|
|
OBE
4852
Obsidian Energy
OBE
$707M
| $231K | ﹤0.01% |
+24,354
| New | +$186K |
|
4853
PUT
Ardelyx
ARDX
$1.24B
| $231K | ﹤0.01% |
+38,500
| New | +$255K |
|
4854
CALL
Arqit Quantum
ARQQ
$290M
| $231K | ﹤0.01% |
17,400
+6,700
| +63% | +$126K |
|
4855
PUT
Rayonier Advanced Materials
RYAM
$565M
| $230K | ﹤0.01% |
20,800
-25,600
| -55% | -$231K |
|
4856
PUT
Inseego
INSG
$108M
| $230K | ﹤0.01% |
+20,700
| New | +$233K |
|
4857
Comstock
LODE
$228M
| $230K | ﹤0.01% |
+75,408
| New | +$247K |
|
4858
ProShares Ultra 7-10 Year Treasury
UST
$13.4M
| $230K | ﹤0.01% |
+5,353
| New | +$234K |
|
|
CAI
4859
CALL
Caris Life Sciences
CAI
$4.39B
| $229K | ﹤0.01% |
12,800
-300
| -2% | -$6.56K |
|
4860
CALL
Gran Tierra Energy
GTE
$260M
| $229K | ﹤0.01% |
+25,500
| New | +$162K |
|
4861
NETSCOUT
NTCT
$2.86B
| $229K | ﹤0.01% |
+7,193
| New | +$209K |
|
4862
PUT
Corsair Gaming
CRSR
$1.05B
| $229K | ﹤0.01% |
+41,200
| New | +$227K |
|
4863
CALL
WPP
WPP
$4.04B
| $229K | ﹤0.01% |
+14,700
| New | +$276K |
|
4864
CALL
POSCO
PKX
$15.8B
| $228K | ﹤0.01% |
+3,900
| New | +$237K |
|
|
VELO
4865
Velo3D Inc
VELO
$288M
| $227K | ﹤0.01% |
+24,219
| New | +$332K |
|
4866
PUT
Fidelity National Financial
FNF
$13.9B
| $227K | ﹤0.01% |
+4,900
| New | +$254K |
|
4867
CALL
Phreesia
PHR
$632M
| $227K | ﹤0.01% |
27,100
+1,400
| +5% | +$18.5K |
|
4868
CALL
Aemetis
AMTX
$119M
| $227K | ﹤0.01% |
+71,100
| New | +$129K |
|
4869
PUT
Dime Commercial Bancshares
DCOM
$1.75B
| $227K | ﹤0.01% |
+6,700
| New | +$220K |
|
|
EFC
4870
Ellington Financial
EFC
$1.68B
| $226K | ﹤0.01% |
+19,063
| New | +$242K |
|
4871
Rentokil
RTO
$14.3B
| $226K | ﹤0.01% |
+7,172
| New | +$226K |
|
4872
PUT
Middleby
MIDD
$6.05B
| $225K | ﹤0.01% |
+1,700
| New | +$258K |
|
4873
CALL
AZZ Inc
AZZ
$4.5B
| $225K | ﹤0.01% |
+1,800
| New | +$227K |
|
4874
PUT
Crinetics Pharmaceuticals
CRNX
$8.86B
| $225K | ﹤0.01% |
+6,200
| New | +$277K |
|
4875
Erie Indemnity
ERIE
$11.7B
| $225K | ﹤0.01% |
+896
| New | +$241K |
|
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.