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 | |
|---|---|---|---|---|---|---|
1601
CALL
F5
FFIV
$23.2B
| $5.97M | ﹤0.01% |
+23,400
| New | +$6.3M |
|
1602
CALL
Bank of Montreal
BMO
$127B
| $5.97M | ﹤0.01% |
46,000
-5,100
| -10% | -$646K |
|
1603
Five Below
FIVE
$13B
| $5.95M | ﹤0.01% |
+31,606
| New | +$5.14M |
|
1604
United Airlines
UAL
$40.2B
| $5.95M | ﹤0.01% |
+53,200
| New | +$5.38M |
|
1605
PUT
CSX Corp
CSX
$92.8B
| $5.95M | ﹤0.01% |
164,100
-68,200
| -29% | -$2.44M |
|
1606
Align Technology
ALGN
$12.5B
| $5.93M | ﹤0.01% |
37,973
-23,888
| -39% | -$3.42M |
|
1607
PUT
Diageo
DEO
$54B
| $5.93M | ﹤0.01% |
68,700
-16,200
| -19% | -$1.49M |
|
1608
PUT
FirstEnergy
FE
$27.1B
| $5.92M | ﹤0.01% |
132,200
+88,900
| +205% | +$4.08M |
|
1609
State Street Health Care Select Sector SPDR ETF
XLV
$44B
| $5.91M | ﹤0.01% |
38,188
+16,798
| +79% | +$2.52M |
|
1610
PUT
Cinemark Holdings
CNK
$4.38B
| $5.91M | ﹤0.01% |
254,200
+214,700
| +544% | +$5.64M |
|
|
TIGR
1611
PUT
UP Fintech Holding
TIGR
$877M
| $5.88M | ﹤0.01% |
615,400
-517,100
| -46% | -$4.94M |
|
1612
PUT
Diamondback Energy
FANG
$55.7B
| $5.88M | ﹤0.01% |
39,100
-10,600
| -21% | -$1.56M |
|
|
SA
1613
Seabridge Gold
SA
$3.36B
| $5.87M | ﹤0.01% |
198,407
+86,519
| +77% | +$2.27M |
|
|
1614
PUT
Bank of Montreal
BMO
$127B
| $5.87M | ﹤0.01% |
45,200
+4,300
| +11% | +$545K |
|
1615
Tapestry
TPR
$33.3B
| $5.86M | ﹤0.01% |
+45,860
| New | +$5.24M |
|
1616
Grab
GRAB
$15B
| $5.86M | ﹤0.01% |
1,174,069
-145,170
| -11% | -$802K |
|
1617
PUT
Harrow
HROW
$1.52B
| $5.86M | ﹤0.01% |
119,500
+50,600
| +73% | +$2.12M |
|
1618
CALL
Cheesecake Factory
CAKE
$5.53B
| $5.84M | ﹤0.01% |
115,600
+63,300
| +121% | +$3.18M |
|
1619
CALL
Nokia
NOK
$51B
| $5.83M | ﹤0.01% |
901,400
+436,800
| +94% | +$2.71M |
|
1620
PUT
Galicia Financial Group
GGAL
$7.46B
| $5.83M | ﹤0.01% |
108,100
-36,300
| -25% | -$1.7M |
|
1621
PUT
J.M. Smucker
SJM
$12.6B
| $5.83M | ﹤0.01% |
59,600
+9,000
| +18% | +$930K |
|
|
PPL
1622
CALL
PPL Corp
PPL
$26.3B
| $5.83M | ﹤0.01% |
166,400
+60,500
| +57% | +$2.18M |
|
1623
CALL
Century Aluminum
CENX
$5.14B
| $5.83M | ﹤0.01% |
148,700
+50,200
| +51% | +$1.57M |
|
1624
CALL
Matador Resources
MTDR
$6.49B
| $5.81M | ﹤0.01% |
136,800
+55,700
| +69% | +$2.34M |
|
1625
CALL
POET Technologies
POET
$1.48B
| $5.8M | ﹤0.01% |
916,100
+647,400
| +241% | +$4.1M |
|
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.