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 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
3326
Nektar Therapeutics
NKTR
$1.27B
| $1.56M | ﹤0.01% |
22,412
+6,051
| +37% | +$443K |
2026 Q1
1 quarter
|
|
3327
CALL
Target Hospitality
TH
$1.35B
| $1.56M | ﹤0.01% |
76,800
+44,500
| +138% | +$744K |
2024 Q1
9 quarters
|
|
3328
Pool Corp
POOL
$7.23B
| $1.56M | ﹤0.01% |
7,264
-7,503
| -51% | -$1.5M |
2026 Q1
1 quarter
|
|
3329
CALL
Huntsman Corp
HUN
$1.54B
| $1.55M | ﹤0.01% |
146,200
-162,700
| -53% | -$2.24M |
2024 Q3
7 quarters
|
|
3330
PUT
Miami International Holdings
MIAX
$3.37B
| $1.55M | ﹤0.01% |
41,700
+8,700
| +26% | +$389K |
2026 Q1
1 quarter
|
|
3331
PUT
Chord Energy
CHRD
$8.65B
| $1.54M | ﹤0.01% |
13,500
+3,900
| +41% | +$529K |
2026 Q1
1 quarter
|
|
3332
CALL
Fidelity Enhanced Large Cap Core ETF
FELC
$8.57B
| $1.54M | ﹤0.01% |
5,400
-9,800
| -64% | -$397K |
2026 Q1
1 quarter
|
|
3333
PUT
CEVA Inc
CEVA
$806M
| $1.54M | ﹤0.01% |
+32,600
| New | +$1.15M |
2026 Q2
0 quarters
|
|
3334
CALL
IPG Photonics
IPGP
$3.02B
| $1.54M | ﹤0.01% |
13,100
+200
| +2% | +$23K |
2026 Q1
1 quarter
|
|
3335
AMC Entertainment Holdings
AMC
$2.59B
| $1.54M | ﹤0.01% |
807,974
+273,000
| +51% | +$470K |
2023 Q3
11 quarters
|
|
3336
TMC The Metals Company
TMC
$1.07B
| $1.53M | ﹤0.01% |
345,823
+40,108
| +13% | +$209K |
2025 Q2
4 quarters
|
|
3337
CAVA Group
CAVA
$6.25B
| $1.53M | ﹤0.01% |
+19,518
| New | +$1.64M |
2026 Q2
0 quarters
|
|
3338
PUT
Spire Global
SPIR
$354M
| $1.53M | ﹤0.01% |
82,300
+60,000
| +269% | +$1.12M |
2026 Q1
1 quarter
|
|
3339
CALL
W.R. Berkley
WRB
$27.2B
| $1.53M | ﹤0.01% |
21,700
-31,400
| -59% | -$2.1M |
2026 Q1
1 quarter
|
|
3340
PUT
Huntington Bancshares
HBAN
$31.8B
| $1.53M | ﹤0.01% |
86,300
-66,000
| -43% | -$1.09M |
2022 Q4
14 quarters
|
|
3341
CALL
Goldman Sachs Physical Gold ETF Shares
AAAU
$2.43B
| $1.53M | ﹤0.01% |
38,600
+13,900
| +56% | +$618K |
2025 Q4
2 quarters
|
|
3342
CarMax
KMX
$7.32B
| $1.53M | ﹤0.01% |
28,868
+14,625
| +103% | +$636K |
2025 Q2
4 quarters
|
|
3343
Novartis
NVS
$287B
| $1.53M | ﹤0.01% |
+9,740
| New | +$1.46M |
2026 Q2
0 quarters
|
|
3344
PUT
Viper Energy
VNOM
$9.13B
| $1.53M | ﹤0.01% |
36,000
-16,600
| -32% | -$767K |
2025 Q4
2 quarters
|
|
3345
PUT
Allegro MicroSystems
ALGM
$5.87B
| $1.52M | ﹤0.01% |
21,900
+4,900
| +29% | +$229K |
2024 Q1
9 quarters
|
|
3346
PUT
Yeti Holdings
YETI
$3.12B
| $1.52M | ﹤0.01% |
30,700
-11,500
| -27% | -$499K |
2021 Q2
20 quarters
|
|
3347
PUT
Corebridge Financial
CRBG
$15.2B
| $1.52M | ﹤0.01% |
53,100
+13,300
| +33% | +$360K |
2024 Q2
8 quarters
|
|
3348
CALL
Kodak
KODK
$916M
| $1.52M | ﹤0.01% |
164,200
-95,200
| -37% | -$1.04M |
2024 Q2
8 quarters
|
|
3349
VNET Group
VNET
$1.06B
| $1.52M | ﹤0.01% |
188,840
+15,491
| +9% | +$141K |
2025 Q1
5 quarters
|
|
3350
CALL
Winnebago Industries
WGO
$815M
| $1.52M | ﹤0.01% |
48,600
+23,000
| +90% | +$702K |
2023 Q4
10 quarters
|
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.