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 Bitcoin Trust
IBIT
|
+$232M |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$168M |
| 3 |
Apple
AAPL
|
+$149M |
| 4 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$136M |
| 5 |
UnitedHealth
UNH
|
+$110M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$153M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$127M |
| 3 |
Advanced Micro Devices
AMD
|
+$97.1M |
| 4 |
TSMC
TSM
|
+$65.3M |
| 5 |
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$57.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.86% |
| 2 | Technology | 0.32% |
| 3 | Consumer Discretionary | 0.25% |
| 4 | Healthcare | 0.13% |
| 5 | Communication Services | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
351
PUT
Cigna
CI
$74.6B
| $57.2M | 0.03% |
173,100
-33,000
| -16% | -$10.6M |
2022 Q1
13 quarters
|
|
352
CALL
Carnival Corporation Ltd
CCL
$35.7B
| $56.8M | 0.03% |
2,019,000
+196,600
| +11% | +$4.21M |
2018 Q4
26 quarters
|
|
353
CALL
Charter Communications
CHTR
$11.7B
| $56.6M | 0.03% |
138,500
+35,200
| +34% | +$13.5M |
2022 Q3
11 quarters
|
|
354
CALL
General Dynamics
GD
$90.6B
| $56.3M | 0.03% |
193,000
+48,200
| +33% | +$13.3M |
2023 Q1
9 quarters
|
|
355
CALL
Nebius Group N.V.
NBIS
$56.7B
| $55.8M | 0.02% |
1,008,800
+491,600
| +95% | +$16.9M |
2024 Q4
2 quarters
|
|
356
CALL
KLA
KLAC
$249B
| $55.7M | 0.02% |
622,000
-95,000
| -13% | -$7.15M |
2022 Q3
11 quarters
|
|
357
PUT
GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF
COMB
$162M
| $54.9M | 0.02% |
1,041,800
-260,400
| -20% | -$5.46M |
2024 Q1
5 quarters
|
|
358
CALL
Hilton Worldwide
HLT
$73.9B
| $54.7M | 0.02% |
205,200
+165,600
| +418% | +$39.4M |
2020 Q2
20 quarters
|
|
359
CALL
Twilio
TWLO
$42.6B
| $54.6M | 0.02% |
439,100
-204,800
| -32% | -$21.8M |
2018 Q4
26 quarters
|
|
360
PUT
Marathon Digital Holdings
MARA
$3.67B
| $54.5M | 0.02% |
3,474,200
+970,200
| +39% | +$13.9M |
2022 Q1
13 quarters
|
|
361
PUT
Affirm
AFRM
$26.7B
| $54.4M | 0.02% |
786,100
+88,100
| +13% | +$4.57M |
2021 Q2
16 quarters
|
|
362
PUT
RTX Corp
RTX
$252B
| $53.8M | 0.02% |
368,400
+140,600
| +62% | +$18.7M |
2020 Q2
20 quarters
|
|
363
CALL
Moderna
MRNA
$85.6B
| $53.6M | 0.02% |
1,941,500
+127,800
| +7% | +$3.37M |
2020 Q1
21 quarters
|
|
364
CALL
S&P Global
SPGI
$122B
| $53.3M | 0.02% |
101,000
+26,300
| +35% | +$13.1M |
2021 Q3
15 quarters
|
|
365
CALL
Sysco
SYY
$38.5B
| $53.1M | 0.02% |
701,000
+469,200
| +202% | +$34.1M |
2023 Q4
6 quarters
|
|
366
PUT
Interactive Brokers
IBKR
$40B
| $53M | 0.02% |
956,400
+376,800
| +65% | +$17.9M |
2023 Q3
7 quarters
|
|
367
PUT
GameStop
GME
$13.6B
| $52.6M | 0.02% |
2,157,400
+439,500
| +26% | +$11.8M |
2019 Q2
24 quarters
|
|
368
CALL
Pfizer
PFE
$162B
| $51.8M | 0.02% |
2,137,100
-95,900
| -4% | -$2.24M |
2021 Q1
17 quarters
|
|
369
PUT
Amgen
AMGN
$225B
| $51.7M | 0.02% |
185,200
+2,500
| +1% | +$708K |
2018 Q4
26 quarters
|
|
|
370
CALL
Interactive Brokers
IBKR
$40B
| $51.7M | 0.02% |
933,100
-90,900
| -9% | -$4.31M |
2023 Q3
7 quarters
|
|
371
CALL
Synopsys
SNPS
$96.5B
| $51.6M | 0.02% |
100,600
+24,400
| +32% | +$11.4M |
2023 Q3
7 quarters
|
|
372
PUT
Okta
OKTA
$40.3B
| $51.5M | 0.02% |
515,100
+137,800
| +37% | +$14.7M |
2019 Q2
24 quarters
|
|
373
PUT
General Motors
GM
$72.7B
| $51.3M | 0.02% |
1,042,500
-586,100
| -36% | -$27.8M |
2018 Q4
26 quarters
|
|
|
374
CALL
General Motors
GM
$72.7B
| $51.2M | 0.02% |
1,039,800
-405,800
| -28% | -$19.2M |
2018 Q4
26 quarters
|
|
375
CALL
Rivian
RIVN
$19.7B
| $50.7M | 0.02% |
3,691,500
-718,600
| -16% | -$9.75M |
2022 Q2
12 quarters
|
|
Similar funds
IMC Chicago's Q2 2025 Portfolio in Review
As of Q2 2025, IMC Chicago held 3,685 positions worth $225B, up 27% from $177B the previous quarter. Its ten largest holdings account for 42% of the portfolio.
IMC Chicago's Q2 2025 filing shows 615 new, 1,602 increased, 1,040 reduced and 423 closed positions. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M. The largest sale was Invesco QQQ Trust, an estimated $153M.
By sector, the portfolio is most concentrated in Miscellaneous at 99% of assets, down from 99% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2025 buy was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
- IMC Chicago added most to Sprott Physical Gold in Q2 2025, an estimated $77.8M increase.
- IMC Chicago's biggest Q2 2025 reduction was Invesco QQQ Trust, cutting an estimated $153M.
- IMC Chicago fully exited Advanced Micro Devices in Q2 2025, selling an estimated $97.1M.
- IMC Chicago's ten largest holdings make up 42% of its $225B portfolio in Q2 2025.
- IMC Chicago opened 615 new positions and closed 423 in Q2 2025.
- IMC Chicago's portfolio value rose 27% quarter-over-quarter to $225B.
Based on IMC Chicago's 13F filing for Q2 2025, filed 22 Jul 2025.