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 | |
|---|---|---|---|---|---|---|
126
PUT
Palo Alto Networks
PANW
$297B
| $281M | 0.1% |
1,527,000
-110,800
| -7% | -$22.4M |
|
127
CALL
Mercado Libre
MELI
$92.3B
| $280M | 0.1% |
139,100
+39,100
| +39% | +$82.1M |
|
128
PUT
Visa
V
$677B
| $272M | 0.1% |
776,100
-124,200
| -14% | -$42.3M |
|
|
129
CALL
Palo Alto Networks
PANW
$297B
| $271M | 0.1% |
1,470,100
-256,000
| -15% | -$51.6M |
|
130
CALL
Arm
ARM
$302B
| $266M | 0.1% |
2,434,900
+84,100
| +4% | +$12.2M |
|
131
CALL
IBM
IBM
$224B
| $265M | 0.1% |
895,200
-187,900
| -17% | -$56.3M |
|
132
PUT
State Street Materials Select Sector SPDR ETF
XLB
$8.66B
| $265M | 0.1% |
5,710,400
-315,200
| -5% | -$13.9M |
|
133
CALL
Baidu
BIDU
$37.2B
| $264M | 0.1% |
2,023,600
-743,800
| -27% | -$92.3M |
|
134
CALL
Bloom Energy
BE
$64.6B
| $264M | 0.1% |
3,038,100
+1,455,800
| +92% | +$153M |
|
|
CRCL
135
CALL
Circle Internet Group
CRCL
$16.9B
| $264M | 0.1% |
+3,323,100
| New | +$343M |
|
136
CALL
Super Micro Computer
SMCI
$20.1B
| $259M | 0.09% |
+8,850,900
| New | +$364M |
|
137
CALL
State Street SPDR NYSE Technology ETF
XNTK
$2.23B
| $253M | 0.09% |
2,748,900
+105,100
| +4% | +$29.4M |
|
138
PUT
Applied Materials
AMAT
$428B
| $251M | 0.09% |
978,100
-19,700
| -2% | -$4.72M |
|
139
CALL
Iris Energy
IREN
$14.7B
| $251M | 0.09% |
6,651,600
+1,696,400
| +34% | +$87.5M |
|
|
140
CALL
Applied Materials
AMAT
$428B
| $247M | 0.09% |
962,300
-224,000
| -19% | -$53.7M |
|
141
PUT
Home Depot
HD
$355B
| $241M | 0.09% |
699,900
+62,300
| +10% | +$22.8M |
|
|
142
CALL
Vanguard S&P 500 ETF
VOO
$1.01T
| $237M | 0.09% |
504,600
+42,600
| +9% | +$26.5M |
|
143
CALL
Intuit
INTU
$89B
| $234M | 0.08% |
353,100
-58,400
| -14% | -$38.6M |
|
144
CALL
Walmart Inc
WMT
$890B
| $234M | 0.08% |
2,097,000
-42,200
| -2% | -$4.53M |
|
145
CALL
SoFi Technologies
SOFI
$23.7B
| $233M | 0.08% |
8,917,800
+2,189,800
| +33% | +$61M |
|
146
PUT
Johnson & Johnson
JNJ
$625B
| $231M | 0.08% |
1,117,100
+189,400
| +20% | +$37.5M |
|
147
PUT
Mastercard
MA
$493B
| $229M | 0.08% |
401,700
-44,800
| -10% | -$25M |
|
148
PUT
Ciena
CIEN
$58.4B
| $227M | 0.08% |
972,200
+829,900
| +583% | +$161M |
|
149
Micron Technology
MU
$991B
| $226M | 0.08% |
793,458
+322,206
| +68% | +$73.9M |
|
150
CALL
Vertiv
VRT
$105B
| $226M | 0.08% |
1,395,300
+470,800
| +51% | +$81.7M |
|
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.