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 | Miscellaneous | 98.48% |
| 2 | Technology | 0.56% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Communication Services | 0.16% |
| 5 | Financials | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
176
CALL
Walt Disney
DIS
$187B
| $187M | 0.07% |
1,647,400
-63,700
| -4% | -$7.02M |
2018 Q4
28 quarters
|
|
177
CALL
American Express
AXP
$208B
| $186M | 0.07% |
503,400
+21,700
| +5% | +$7.77M |
2018 Q4
28 quarters
|
|
178
PUT
Iris Energy
IREN
$13.9B
| $185M | 0.07% |
4,902,500
+1,447,100
| +42% | +$74.7M |
2024 Q1
7 quarters
|
|
|
179
Broadcom
AVGO
$1.73T
| $184M | 0.07% |
530,257
+458,608
| +640% | +$164M |
2025 Q3
1 quarter
|
|
180
CALL
Chipotle Mexican Grill
CMG
$40B
| $183M | 0.07% |
4,957,600
+1,179,200
| +31% | +$42.7M |
2018 Q4
28 quarters
|
|
181
CALL
Oklo
OKLO
$6.45B
| $183M | 0.07% |
2,553,800
+658,800
| +35% | +$73.5M |
2024 Q2
6 quarters
|
|
182
PUT
Dell
DELL
$373B
| $183M | 0.07% |
1,454,300
+210,400
| +17% | +$29.6M |
2022 Q2
14 quarters
|
|
183
PUT
Synopsys
SNPS
$97.7B
| $181M | 0.07% |
384,600
-66,400
| -15% | -$29.5M |
2023 Q3
9 quarters
|
|
184
CALL
Regeneron Pharmaceuticals
REGN
$76.9B
| $177M | 0.06% |
229,900
+25,800
| +13% | +$17.5M |
2024 Q4
4 quarters
|
|
185
CALL
Arista Networks
ANET
$273B
| $177M | 0.06% |
+1,353,900
| New | +$186M |
2025 Q4
0 quarters
|
|
186
CALL
Nebius Group N.V.
NBIS
$60.1B
| $177M | 0.06% |
+2,117,700
| New | +$219M |
2025 Q4
0 quarters
|
|
187
PUT
Arm
ARM
$284B
| $174M | 0.06% |
1,595,300
+48,700
| +3% | +$7.08M |
2023 Q3
9 quarters
|
|
188
PUT
State Street Technology Select Sector SPDR ETF
XLK
$131B
| $173M | 0.06% |
1,198,900
+390,700
| +48% | +$56.4M |
2018 Q4
28 quarters
|
|
189
CALL
Newmont
NEM
$124B
| $172M | 0.06% |
1,726,900
+97,400
| +6% | +$8.8M |
2018 Q4
28 quarters
|
|
190
PUT
PepsiCo
PEP
$172B
| $168M | 0.06% |
1,171,800
+119,200
| +11% | +$17.5M |
2018 Q4
28 quarters
|
|
191
PUT
PayPal
PYPL
$47.5B
| $168M | 0.06% |
2,879,700
-1,499,400
| -34% | -$97.4M |
2018 Q4
28 quarters
|
|
192
CALL
Bank of America
BAC
$380B
| $168M | 0.06% |
3,050,900
-675,800
| -18% | -$35.7M |
2018 Q4
28 quarters
|
|
193
PUT
Burlington
BURL
$17.4B
| $168M | 0.06% |
580,300
-282,200
| -33% | -$76.6M |
2022 Q4
12 quarters
|
|
194
PUT
AST SpaceMobile
ASTS
$15.3B
| $167M | 0.06% |
2,304,300
+563,200
| +32% | +$40.2M |
2024 Q2
6 quarters
|
|
195
PUT
KLA
KLAC
$255B
| $164M | 0.06% |
1,349,000
+174,000
| +15% | +$20.4M |
2022 Q3
13 quarters
|
|
196
CALL
DoorDash
DASH
$85.1B
| $164M | 0.06% |
723,700
+136,200
| +23% | +$31.9M |
2020 Q4
20 quarters
|
|
197
CALL
Mastercard
MA
$516B
| $164M | 0.06% |
287,100
-152,600
| -35% | -$85.3M |
2018 Q4
28 quarters
|
|
198
CALL
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$226M
| $162M | 0.06% |
3,378,100
-6,299,100
| -65% | -$147M |
2022 Q4
12 quarters
|
|
199
CALL
Johnson & Johnson
JNJ
$630B
| $162M | 0.06% |
781,700
+46,400
| +6% | +$9.18M |
2018 Q4
28 quarters
|
|
200
PUT
Circle Internet Group
CRCL
$21.5B
| $162M | 0.06% |
+2,038,900
| New | +$211M |
2025 Q4
0 quarters
|
|
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 Miscellaneous at 98% of assets, up from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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.