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 |
iShares Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3851
CALL
Frontier Group Holdings
ULCC
$1.7B
| $276K | ﹤0.01% |
58,700
-24,800
| -30% | -$110K |
|
|
AGNT
3852
CALL
AGNT Inc
AGNT
$734M
| $276K | ﹤0.01% |
+30,500
| New | +$322K |
|
|
SLI
3853
Standard Lithium
SLI
$584M
| $276K | ﹤0.01% |
+61,689
| New | +$261K |
|
3854
CALL
Caleres
CAL
$487M
| $275K | ﹤0.01% |
22,600
-22,100
| -49% | -$272K |
|
3855
CALL
Kosmos Energy
KOS
$1.48B
| $275K | ﹤0.01% |
302,900
+88,700
| +41% | +$117K |
|
|
KDK
3856
CALL
Kodiak AI
KDK
$865M
| $274K | ﹤0.01% |
+25,100
| New | +$201K |
|
|
ABK
3857
PUT
DELISTED
Ambac Financial Group
ABK
| $274K | ﹤0.01% |
35,200
-43,100
| -55% | -$335K |
|
3858
PUT
Rayonier Advanced Materials
RYAM
$610M
| $273K | ﹤0.01% |
46,400
+5,900
| +15% | +$38.3K |
|
3859
CALL
Acadia Pharmaceuticals
ACAD
$5.03B
| $272K | ﹤0.01% |
+10,200
| New | +$244K |
|
3860
PUT
Constellium
CSTM
$3.99B
| $271K | ﹤0.01% |
14,400
-11,100
| -44% | -$184K |
|
3861
Kodak
KODK
$983M
| $271K | ﹤0.01% |
+32,037
| New | +$240K |
|
|
KC
3862
PUT
Kingsoft Cloud Holdings
KC
$3.69B
| $271K | ﹤0.01% |
26,200
-100,900
| -79% | -$1.24M |
|
|
ABX
3863
Abacus Global Management
ABX
$913M
| $270K | ﹤0.01% |
+31,604
| New | +$208K |
|
3864
CALL
Funko
FNKO
$328M
| $270K | ﹤0.01% |
+79,300
| New | +$249K |
|
3865
CALL
Atlas Lithium Corp
ATLX
$91.7M
| $269K | ﹤0.01% |
+63,700
| New | +$321K |
|
|
AMRN
3866
CALL
Amarin Corp
AMRN
$303M
| $269K | ﹤0.01% |
+19,300
| New | +$318K |
|
3867
PUT
BBVA Argentina
BBAR
$3.49B
| $269K | ﹤0.01% |
14,900
-13,100
| -47% | -$188K |
|
3868
PUT
Extreme Networks
EXTR
$3.15B
| $268K | ﹤0.01% |
16,100
+1,000
| +7% | +$18.4K |
|
3869
loanDepot
LDI
$516M
| $268K | ﹤0.01% |
129,428
+9,454
| +8% | +$26.3K |
|
3870
CALL
B&G Foods
BGS
$286M
| $267K | ﹤0.01% |
62,100
+6,000
| +11% | +$26.8K |
|
3871
CALL
Endava
DAVA
$156M
| $267K | ﹤0.01% |
+42,200
| New | +$323K |
|
3872
PUT
10x Genomics
TXG
$6.61B
| $266K | ﹤0.01% |
+16,300
| New | +$246K |
|
3873
CALL
The Honest Company
HNST
$586M
| $265K | ﹤0.01% |
102,900
-55,400
| -35% | -$170K |
|
|
DGXX
3874
Digi Power X Inc
DGXX
$385M
| $265K | ﹤0.01% |
+104,059
| New | +$390K |
|
|
PEW
3875
CALL
GrabAGun Digital Holdings
PEW
$77.9M
| $265K | ﹤0.01% |
+87,900
| New | +$351K |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.