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 | |
|---|---|---|---|---|---|---|---|
3476
CALL
Build-A-Bear
BBW
$293M
| $1.36M | ﹤0.01% |
44,400
-2,200
| -5% | -$78.9K |
2025 Q3
3 quarters
|
|
3477
CALL
BillionToOne Inc
BLLN
$5.09B
| $1.36M | ﹤0.01% |
+11,300
| New | +$1.03M |
2026 Q2
0 quarters
|
|
3478
PUT
Imperial Oil
IMO
$65.2B
| $1.36M | ﹤0.01% |
12,100
-2,600
| -18% | -$326K |
2025 Q3
3 quarters
|
|
3479
CALL
Krispy Kreme
DNUT
$489M
| $1.36M | ﹤0.01% |
383,900
+34,200
| +10% | +$122K |
2024 Q2
8 quarters
|
|
3480
Diageo
DEO
$53.4B
| $1.35M | ﹤0.01% |
16,845
-38,003
| -69% | -$3.07M |
2026 Q1
1 quarter
|
|
3481
CALL
Star Bulk Carriers
SBLK
$3.36B
| $1.35M | ﹤0.01% |
54,200
+2,900
| +6% | +$75K |
2024 Q4
6 quarters
|
|
3482
CALL
Fervo Energy
FRVO
$2.37B
| $1.35M | ﹤0.01% |
+46,300
| New | +$1.67M |
2026 Q2
0 quarters
|
|
3483
United States Antimony
UAMY
$458M
| $1.35M | ﹤0.01% |
+186,344
| New | +$1.69M |
2026 Q2
0 quarters
|
|
3484
Xcel Energy
XEL
$48.8B
| $1.35M | ﹤0.01% |
+16,813
| New | +$1.34M |
2026 Q2
0 quarters
|
|
3485
PUT
Permian Resources
PR
$21.3B
| $1.35M | ﹤0.01% |
73,300
+21,500
| +42% | +$432K |
2024 Q1
9 quarters
|
|
3486
CALL
Leverage Shares 2X Long BMNR Daily ETF
BMNG
$45.3M
| $1.35M | ﹤0.01% |
+72,000
| New | +$1.6M |
2026 Q2
0 quarters
|
|
3487
CALL
Novanta
NOVT
$5.32B
| $1.35M | ﹤0.01% |
+8,300
| New | +$1.2M |
2026 Q2
0 quarters
|
|
3488
CALL
AllianceBernstein
AB
$3.22B
| $1.35M | ﹤0.01% |
38,200
-23,500
| -38% | -$888K |
2025 Q3
3 quarters
|
|
3489
PUT
Bitwise Solana Staking ETF
BSOL
$843M
| $1.34M | ﹤0.01% |
134,300
+60,400
| +82% | +$657K |
2026 Q1
1 quarter
|
|
3490
Estee Lauder
EL
$39.4B
| $1.34M | ﹤0.01% |
17,017
-51,391
| -75% | -$4.15M |
2025 Q2
4 quarters
|
|
3491
CALL
Bombardier Recreational Products
DOO
$4.14B
| $1.34M | ﹤0.01% |
+22,000
| New | +$1.32M |
2026 Q2
0 quarters
|
|
3492
CALL
WillScot Mobile Mini Holdings
WSC
$2.95B
| $1.34M | ﹤0.01% |
46,500
+24,300
| +109% | +$588K |
2024 Q3
7 quarters
|
|
3493
PUT
Procept Biorobotics
PRCT
$1.14B
| $1.34M | ﹤0.01% |
59,400
+20,300
| +52% | +$508K |
2025 Q2
4 quarters
|
|
3494
PUT
Parsons
PSN
$5.24B
| $1.34M | ﹤0.01% |
25,600
+17,500
| +216% | +$945K |
2025 Q4
2 quarters
|
|
3495
Power Integrations
POWI
$2.62B
| $1.34M | ﹤0.01% |
+16,007
| New | +$1.15M |
2026 Q2
0 quarters
|
|
3496
PUT
Helen of Troy
HELE
$657M
| $1.34M | ﹤0.01% |
46,100
-35,600
| -44% | -$842K |
2023 Q4
10 quarters
|
|
3497
CALL
WD-40
WDFC
$2.85B
| $1.34M | ﹤0.01% |
5,500
+900
| +20% | +$193K |
2026 Q1
1 quarter
|
|
3498
PUT
Ericsson
ERIC
$34.6B
| $1.34M | ﹤0.01% |
+119,800
| New | +$1.44M |
2026 Q2
0 quarters
|
|
3499
State Street SPDR S&P Insurance ETF
KIE
$541M
| $1.33M | ﹤0.01% |
+21,853
| New | +$1.25M |
2026 Q2
0 quarters
|
|
3500
Academy Sports + Outdoors
ASO
$3.72B
| $1.33M | ﹤0.01% |
+28,277
| New | +$1.5M |
2026 Q2
0 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.