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 | |
|---|---|---|---|---|---|---|
926
CALL
CarMax
KMX
$8.26B
| $16.9M | 0.01% |
437,100
+20,700
| +5% | +$828K |
|
927
PUT
Symbotic
SYM
$5.22B
| $16.9M | 0.01% |
283,700
-12,100
| -4% | -$799K |
|
928
CALL
Global Payments
GPN
$22.8B
| $16.9M | 0.01% |
217,900
+60,600
| +39% | +$4.88M |
|
929
PUT
Waste Management
WM
$91B
| $16.9M | 0.01% |
76,700
+20,100
| +36% | +$4.28M |
|
930
CALL
WIX.com
WIX
$2.52B
| $16.9M | 0.01% |
162,200
-59,000
| -27% | -$7.13M |
|
931
PUT
Williams-Sonoma
WSM
$29.6B
| $16.8M | 0.01% |
94,000
+8,500
| +10% | +$1.59M |
|
932
CALL
Dominion Energy
D
$59.3B
| $16.8M | 0.01% |
286,000
+79,700
| +39% | +$4.8M |
|
933
CALL
Texas Pacific Land
TPL
$23.5B
| $16.7M | 0.01% |
58,300
-11,000
| -16% | -$3.36M |
|
934
PUT
Norwegian Cruise Line
NCLH
$8.84B
| $16.7M | 0.01% |
749,400
+58,500
| +8% | +$1.24M |
|
|
BNY
935
PUT
Bank of New York Mellon
BNY
$107B
| $16.7M | 0.01% |
143,700
+39,700
| +38% | +$4.39M |
|
|
GLXY
936
CALL
Galaxy Digital Inc
GLXY
$3.93B
| $16.6M | 0.01% |
+744,000
| New | +$23M |
|
937
CALL
Diamondback Energy
FANG
$52.7B
| $16.6M | 0.01% |
110,400
+47,700
| +76% | +$7.04M |
|
938
PUT
Zoetis
ZTS
$30B
| $16.6M | 0.01% |
131,600
-3,100
| -2% | -$404K |
|
939
CALL
Digital Realty Trust
DLR
$71.7B
| $16.5M | 0.01% |
106,700
-5,500
| -5% | -$903K |
|
|
940
CALL
Williams-Sonoma
WSM
$29.6B
| $16.5M | 0.01% |
92,300
+20,000
| +28% | +$3.75M |
|
941
PUT
Veeva Systems
VEEV
$37.4B
| $16.5M | 0.01% |
73,800
+2,000
| +3% | +$531K |
|
|
BNY
942
CALL
Bank of New York Mellon
BNY
$107B
| $16.4M | 0.01% |
141,700
+45,800
| +48% | +$5.07M |
|
943
CALL
Ambarella
AMBA
$3.81B
| $16.4M | 0.01% |
232,200
+24,600
| +12% | +$1.99M |
|
944
XPeng
XPEV
$11.6B
| $16.4M | 0.01% |
809,987
+217,896
| +37% | +$4.73M |
|
945
CALL
Intuitive Machines
LUNR
$2.63B
| $16.3M | 0.01% |
1,004,800
+320,200
| +47% | +$3.71M |
|
946
CALL
Trane Technologies
TT
$106B
| $16.3M | 0.01% |
41,800
+14,300
| +52% | +$5.91M |
|
947
PUT
Chewy
CHWY
$9.63B
| $16.3M | 0.01% |
492,100
-136,900
| -22% | -$4.75M |
|
948
CALL
BioNTech
BNTX
$23.5B
| $16.2M | 0.01% |
170,500
+41,900
| +33% | +$4.22M |
|
949
NIO
NIO
$11.9B
| $16.2M | 0.01% |
3,178,590
+1,601,152
| +102% | +$9.88M |
|
950
CALL
O'Reilly Automotive
ORLY
$76.3B
| $16.2M | 0.01% |
177,100
-35,100
| -17% | -$3.43M |
|
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.