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 | |
|---|---|---|---|---|---|---|---|
226
PUT
Newmont
NEM
$122B
| $138M | 0.05% |
1,378,400
+237,600
| +21% | +$21.5M |
2018 Q4
28 quarters
|
|
227
CALL
KLA
KLAC
$228B
| $137M | 0.05% |
1,126,000
+154,000
| +16% | +$18.1M |
2022 Q3
13 quarters
|
|
228
PUT
GE Aerospace
GE
$324B
| $134M | 0.05% |
435,200
-50,500
| -10% | -$15.2M |
2022 Q2
14 quarters
|
|
229
PUT
FedEx
FDX
$69.9B
| $134M | 0.05% |
463,800
-55,400
| -11% | -$14.5M |
2018 Q4
28 quarters
|
|
230
PUT
Intuitive Surgical
ISRG
$151B
| $132M | 0.05% |
233,500
+38,400
| +20% | +$20.4M |
2018 Q4
28 quarters
|
|
231
PUT
Western Digital
WDC
$133B
| $132M | 0.05% |
764,700
-99,400
| -12% | -$15.1M |
2018 Q4
28 quarters
|
|
232
PUT
Nebius Group N.V.
NBIS
$51.2B
| $131M | 0.05% |
+1,561,900
| New | +$162M |
2025 Q4
0 quarters
|
|
233
PUT
Nike
NKE
$55.2B
| $130M | 0.05% |
2,043,700
+5,300
| +0.3% | +$345K |
2018 Q4
28 quarters
|
|
234
CALL
Starbucks
SBUX
$110B
| $130M | 0.05% |
1,545,500
+22,800
| +1% | +$1.92M |
2018 Q4
28 quarters
|
|
235
CALL
Cisco
CSCO
$433B
| $130M | 0.05% |
1,688,100
+258,300
| +18% | +$19.2M |
2018 Q4
28 quarters
|
|
236
CALL
Accenture
ACN
$138B
| $129M | 0.05% |
482,100
-28,700
| -6% | -$7.29M |
2018 Q4
28 quarters
|
|
237
PUT
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$234M
| $128M | 0.05% |
2,319,900
-2,632,900
| -53% | -$61.2M |
2022 Q4
12 quarters
|
|
238
CALL
Ulta Beauty
ULTA
$26B
| $127M | 0.05% |
210,400
+49,700
| +31% | +$27.3M |
2018 Q4
28 quarters
|
|
239
CALL
McKesson
MCK
$116B
| $127M | 0.05% |
155,000
+61,300
| +65% | +$50M |
2022 Q4
12 quarters
|
|
240
PUT
United Airlines
UAL
$32.9B
| $127M | 0.05% |
1,132,500
-17,100
| -1% | -$1.73M |
2018 Q4
28 quarters
|
|
241
PUT
DoorDash
DASH
$83.6B
| $126M | 0.05% |
557,900
-73,600
| -12% | -$17.3M |
2020 Q4
20 quarters
|
|
|
KFYP
242
CALL
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $125M | 0.05% |
3,674,900
+861,300
| +31% | +$29.3M |
2021 Q4
16 quarters
|
|
243
CALL
Rocket Lab Corp
RKLB
$35.3B
| $125M | 0.05% |
+1,792,500
| New | +$103M |
2025 Q4
0 quarters
|
|
244
PUT
Oklo
OKLO
$5.58B
| $124M | 0.05% |
1,734,200
-316,600
| -15% | -$35.3M |
2024 Q2
6 quarters
|
|
245
CALL
Lumentum
LITE
$78.8B
| $124M | 0.05% |
337,400
+168,400
| +100% | +$43.2M |
2024 Q3
5 quarters
|
|
246
PUT
Chipotle Mexican Grill
CMG
$38.7B
| $124M | 0.04% |
3,344,500
-3,100,100
| -48% | -$112M |
2018 Q4
28 quarters
|
|
247
PUT
Albemarle
ALB
$11.6B
| $124M | 0.04% |
874,500
-572,500
| -40% | -$65M |
2023 Q2
10 quarters
|
|
248
PUT
Roku
ROKU
$23B
| $124M | 0.04% |
1,139,000
-107,300
| -9% | -$10.9M |
2019 Q1
27 quarters
|
|
249
PUT
ExxonMobil
XOM
$718B
| $123M | 0.04% |
1,022,200
+17,400
| +2% | +$2.02M |
2018 Q4
28 quarters
|
|
250
CALL
BitMine Immersion Technologies
BMNR
$14.1B
| $123M | 0.04% |
+4,525,700
| New | +$183M |
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.