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 | |
|---|---|---|---|---|---|---|
4201
PUT
Landstar System
LSTR
$7.06B
| $433K | ﹤0.01% |
+2,700
| New | +$414K |
|
4202
ClearPoint Neuro
CLPT
$435M
| $433K | ﹤0.01% |
+47,543
| New | +$600K |
|
4203
CALL
Ibotta
IBTA
$612M
| $432K | ﹤0.01% |
+14,400
| New | +$337K |
|
4204
Denison Mines
DNN
$2.8B
| $431K | ﹤0.01% |
122,174
-275,681
| -69% | -$1.04M |
|
4205
Kulicke & Soffa
KLIC
$5.55B
| $430K | ﹤0.01% |
+6,550
| New | +$416K |
|
4206
Viasat
VSAT
$10.1B
| $430K | ﹤0.01% |
+9,398
| New | +$423K |
|
4207
State Street SPDR Portfolio S&P 500 Value ETF
SPYV
$35.7B
| $430K | ﹤0.01% |
7,602
-2,998
| -28% | -$174K |
|
4208
CALL
Adecoagro
AGRO
$1.55B
| $430K | ﹤0.01% |
+28,600
| New | +$282K |
|
|
NTSK
4209
Netskope Inc
NTSK
$4.51B
| $429K | ﹤0.01% |
50,558
+21,625
| +75% | +$268K |
|
4210
PUT
Delek US
DK
$3.97B
| $428K | ﹤0.01% |
9,500
-7,200
| -43% | -$257K |
|
4211
Asana
ASAN
$1.51B
| $428K | ﹤0.01% |
66,876
-136,058
| -67% | -$1.2M |
|
4212
CALL
Carbon Collective Climate Solutions US Equity ETF
CCSO
$45.8M
| $427K | ﹤0.01% |
32,900
+9,800
| +42% | +$260K |
|
4213
Fox Class A
FOXA
$23.1B
| $427K | ﹤0.01% |
7,312
-4,686
| -39% | -$299K |
|
4214
PUT
Cheniere Energy
CQP
$31.9B
| $427K | ﹤0.01% |
+6,600
| New | +$395K |
|
4215
Core & Main
CNM
$8.07B
| $426K | ﹤0.01% |
+8,629
| New | +$465K |
|
4216
PUT
B&G Foods
BGS
$285M
| $426K | ﹤0.01% |
88,500
+600
| +0.7% | +$2.9K |
|
|
GEMI
4217
PUT
Gemini Space Station
GEMI
$556M
| $426K | ﹤0.01% |
96,300
-52,000
| -35% | -$409K |
|
4218
Avantor
AVTR
$7.75B
| $425K | ﹤0.01% |
54,264
-19,968
| -27% | -$196K |
|
4219
CALL
Green Brick Partners
GRBK
$3.06B
| $425K | ﹤0.01% |
+6,600
| New | +$464K |
|
|
CRCA
4220
CALL
ProShares Ultra CRCL
CRCA
$81.8M
| $425K | ﹤0.01% |
+10,300
| New | +$428K |
|
|
NAVN
4221
CALL
Navan Inc
NAVN
$5.65B
| $425K | ﹤0.01% |
32,100
+20,100
| +168% | +$239K |
|
4222
CALL
iRhythm Holdings
IRTC
$3.54B
| $425K | ﹤0.01% |
+3,600
| New | +$519K |
|
4223
Invesco S&P MidCap 400 Pure Growth ETF
RFG
$347M
| $424K | ﹤0.01% |
+7,730
| New | +$434K |
|
4224
PUT
Jack in the Box
JACK
$263M
| $424K | ﹤0.01% |
43,800
-19,800
| -31% | -$350K |
|
4225
PUT
Globus Medical
GMED
$10.2B
| $422K | ﹤0.01% |
4,900
-42,500
| -90% | -$3.81M |
|
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.