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 | |
|---|---|---|---|---|---|---|---|
426
CALL
Hims & Hers Health
HIMS
$6.55B
| $62.5M | 0.02% |
1,924,400
+391,600
| +26% | +$16.8M |
2024 Q1
7 quarters
|
|
427
CALL
Twilio
TWLO
$37.5B
| $62.3M | 0.02% |
438,100
+57,400
| +15% | +$7.11M |
2018 Q4
28 quarters
|
|
428
CALL
CAVA Group
CAVA
$6.69B
| $62.1M | 0.02% |
1,057,900
+305,400
| +41% | +$17M |
2023 Q4
8 quarters
|
|
429
PUT
Procter & Gamble
PG
$370B
| $62M | 0.02% |
432,300
+106,000
| +32% | +$15.6M |
2018 Q4
28 quarters
|
|
430
PUT
Floor & Decor
FND
$4.82B
| $61.5M | 0.02% |
1,010,600
+345,300
| +52% | +$22.4M |
2024 Q1
7 quarters
|
|
431
CALL
Analog Devices
ADI
$192B
| $61.4M | 0.02% |
226,300
-93,600
| -29% | -$23.5M |
2022 Q4
12 quarters
|
|
432
CALL
Verizon
VZ
$186B
| $61.4M | 0.02% |
1,506,700
+71,700
| +5% | +$2.91M |
2018 Q4
28 quarters
|
|
433
CALL
Estee Lauder
EL
$37.9B
| $61.3M | 0.02% |
585,800
-41,800
| -7% | -$4.06M |
2023 Q2
10 quarters
|
|
434
PUT
Rigetti Computing
RGTI
$3.94B
| $61M | 0.02% |
2,753,000
-38,700
| -1% | -$1.26M |
2024 Q4
4 quarters
|
|
435
PUT
Unity
U
$17.8B
| $60.9M | 0.02% |
1,379,000
-265,700
| -16% | -$10.8M |
2020 Q4
20 quarters
|
|
436
PUT
IonQ
IONQ
$12.7B
| $60.6M | 0.02% |
1,350,900
-176,200
| -12% | -$9.9M |
2024 Q1
7 quarters
|
|
437
PUT
Agnico Eagle Mines
AEM
$96B
| $60.5M | 0.02% |
356,900
+58,200
| +19% | +$9.8M |
2019 Q2
26 quarters
|
|
438
CALL
Emcor
EME
$31.8B
| $60.3M | 0.02% |
98,600
+80,800
| +454% | +$52.3M |
2024 Q3
5 quarters
|
|
439
CALL
Cadence Design Systems
CDNS
$88B
| $60.3M | 0.02% |
192,900
+54,000
| +39% | +$17.6M |
2024 Q1
7 quarters
|
|
440
PUT
ProShares Ultra Bloomberg Natural Gas
BOIL
$302M
| $59.3M | 0.02% |
1,014,950
+400,300
| +65% | +$24.5M |
2022 Q2
14 quarters
|
|
441
PUT
MP Materials
MP
$7.15B
| $59.2M | 0.02% |
1,171,600
-178,600
| -13% | -$11.3M |
2023 Q3
9 quarters
|
|
442
PUT
Occidental Petroleum
OXY
$62.4B
| $58.9M | 0.02% |
1,431,300
-494,200
| -26% | -$20.6M |
2018 Q4
28 quarters
|
|
443
CALL
DraftKings
DKNG
$9.38B
| $58.9M | 0.02% |
1,707,900
+673,800
| +65% | +$22.2M |
2020 Q2
22 quarters
|
|
444
Baidu
BIDU
$27.3B
| $58.8M | 0.02% |
450,285
+246,708
| +121% | +$30.6M |
2023 Q4
8 quarters
|
|
445
PUT
Apollo Global Management
APO
$65.4B
| $58.8M | 0.02% |
406,000
+191,300
| +89% | +$25.4M |
2023 Q1
11 quarters
|
|
446
CALL
Danaher
DHR
$161B
| $58.7M | 0.02% |
256,300
-41,300
| -14% | -$9.08M |
2022 Q4
12 quarters
|
|
447
PUT
Interactive Brokers
IBKR
$37.5B
| $58.3M | 0.02% |
907,000
-28,400
| -3% | -$1.9M |
2023 Q3
9 quarters
|
|
|
448
CALL
Interactive Brokers
IBKR
$37.5B
| $58.1M | 0.02% |
902,700
-120,200
| -12% | -$8.05M |
2023 Q3
9 quarters
|
|
449
CALL
Royal Caribbean
RCL
$74.3B
| $58M | 0.02% |
207,900
-89,400
| -30% | -$25.3M |
2019 Q4
24 quarters
|
|
450
CALL
Okta
OKTA
$32.7B
| $57.9M | 0.02% |
669,800
-64,100
| -9% | -$5.59M |
2019 Q2
26 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.