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 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.46% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Technology | 0.33% |
| 4 | Communication Services | 0.22% |
| 5 | Industrials | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
376
CALL
Workday
WDAY
$46B
| $67.1M | 0.02% |
278,600
+141,600
| +103% | +$32.7M |
2018 Q4
27 quarters
|
|
377
CALL
Corning
GLW
$114B
| $66.9M | 0.02% |
815,200
+369,600
| +83% | +$24.2M |
2022 Q3
12 quarters
|
|
378
CALL
Centrus Energy
LEU
$2.35B
| $66.8M | 0.02% |
215,300
+80,800
| +60% | +$17.9M |
2024 Q3
4 quarters
|
|
379
PUT
Seagate
STX
$145B
| $66.7M | 0.02% |
282,500
-6,500
| -2% | -$1.11M |
2022 Q3
12 quarters
|
|
380
PUT
Merck
MRK
$360B
| $66.7M | 0.02% |
794,500
+186,900
| +31% | +$15.4M |
2022 Q1
14 quarters
|
|
381
PUT
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$22B
| $66.1M | 0.02% |
551,600
+4,800
| +0.9% | +$549K |
2018 Q4
27 quarters
|
|
382
CALL
IonQ
IONQ
$12.7B
| $66.1M | 0.02% |
1,074,300
+57,100
| +6% | +$2.68M |
2024 Q1
6 quarters
|
|
383
CALL
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$25.3B
| $66M | 0.02% |
110,700
+39,600
| +56% | +$23.2M |
2023 Q4
7 quarters
|
|
384
PUT
Unity
U
$17.8B
| $65.9M | 0.02% |
1,644,700
+725,300
| +79% | +$26.9M |
2020 Q4
19 quarters
|
|
385
CALL
AT&T
T
$161B
| $65.5M | 0.02% |
2,319,700
+310,700
| +15% | +$8.82M |
2018 Q4
27 quarters
|
|
386
CALL
DELISTED
Electronic Arts
EA
| $65.5M | 0.02% |
324,600
+142,800
| +79% | +$23.6M |
2018 Q4
27 quarters
|
|
387
CALL
Wayfair
W
$14.7B
| $65.4M | 0.02% |
731,700
+149,000
| +26% | +$10.9M |
2020 Q1
22 quarters
|
|
388
Alphabet (Google) Class A
GOOGL
$4.17T
| $65.1M | 0.02% |
267,881
+113,298
| +73% | +$23.7M |
2025 Q1
2 quarters
|
|
|
KFYP
389
PUT
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $64.9M | 0.02% |
1,549,700
+372,000
| +32% | +$15.6M |
2021 Q4
15 quarters
|
|
390
PUT
Interactive Brokers
IBKR
$37.5B
| $64.4M | 0.02% |
935,400
-21,000
| -2% | -$1.32M |
2023 Q3
8 quarters
|
|
391
CALL
Take-Two Interactive
TTWO
$38.4B
| $64.2M | 0.02% |
248,400
+6,300
| +3% | +$1.49M |
2020 Q2
21 quarters
|
|
392
PUT
Coca-Cola
KO
$404B
| $63.6M | 0.02% |
958,900
+369,200
| +63% | +$25.4M |
2018 Q4
27 quarters
|
|
393
Chipotle Mexican Grill
CMG
$37.8B
| $63.5M | 0.02% |
1,621,553
+1,597,126
| +6,538% | +$71.9M |
2024 Q2
5 quarters
|
|
394
PUT
Union Pacific
UNP
$172B
| $63.5M | 0.02% |
268,500
+75,200
| +39% | +$16.9M |
2020 Q3
20 quarters
|
|
395
PUT
Amgen
AMGN
$234B
| $63.4M | 0.02% |
224,700
+39,500
| +21% | +$11.5M |
2018 Q4
27 quarters
|
|
396
CALL
Verizon
VZ
$186B
| $63.1M | 0.02% |
1,435,000
+443,000
| +45% | +$19.2M |
2018 Q4
27 quarters
|
|
397
PUT
GameStop
GME
$13.5B
| $62.9M | 0.02% |
2,304,900
+147,500
| +7% | +$3.5M |
2019 Q2
25 quarters
|
|
|
398
PUT
Take-Two Interactive
TTWO
$38.4B
| $62.8M | 0.02% |
243,000
+67,400
| +38% | +$16M |
2020 Q2
21 quarters
|
|
399
PUT
Rivian
RIVN
$18B
| $61.9M | 0.02% |
4,216,100
+1,165,700
| +38% | +$15.6M |
2022 Q2
13 quarters
|
|
400
CALL
Pfizer
PFE
$169B
| $61.8M | 0.02% |
2,426,400
+289,300
| +14% | +$7.14M |
2021 Q1
18 quarters
|
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago's Q3 2025 filing shows 783 new, 1,843 increased, 923 reduced and 492 closed positions. Its largest new stake was Netflix: 666,120 shares worth $79.9M. The largest sale was Apple, an estimated $167M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 99% a quarter earlier, followed by Consumer Discretionary and Technology.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.