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 | |
|---|---|---|---|---|---|---|---|
426
CALL
EOG Resources
EOG
$85.5B
| $79.9M | 0.02% |
616,100
+40,200
| +7% | +$5.48M |
2022 Q3
15 quarters
|
|
427
CALL
VanEck Durable High Dividend ETF
DURA
$39M
| $79.2M | 0.02% |
277,900
+73,300
| +36% | +$2.75M |
2021 Q4
18 quarters
|
|
428
PUT
Amphenol
APH
$183B
| $79M | 0.02% |
896,400
+22,200
| +3% | +$1.6M |
2023 Q4
10 quarters
|
|
429
CALL
Enphase Energy
ENPH
$4.18B
| $79M | 0.02% |
1,604,500
+590,600
| +58% | +$26.9M |
2020 Q3
23 quarters
|
|
430
CALL
HCA Healthcare
HCA
$102B
| $78.7M | 0.02% |
201,800
+117,000
| +138% | +$49.5M |
2022 Q3
15 quarters
|
|
431
PUT
Capital One
COF
$124B
| $78.7M | 0.02% |
392,100
-78,200
| -17% | -$15M |
2018 Q4
30 quarters
|
|
|
432
Sandisk
SNDK
$179B
| $78.6M | 0.02% |
34,584
-111,258
| -76% | -$159M |
2025 Q4
2 quarters
|
|
433
CALL
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$7.19B
| $77.7M | 0.02% |
512,900
-48,200
| -9% | -$1.4M |
2021 Q4
18 quarters
|
|
434
CALL
TJX Companies
TJX
$160B
| $77.4M | 0.02% |
510,900
+109,200
| +27% | +$17.3M |
2023 Q3
11 quarters
|
|
435
PUT
Oklo
OKLO
$4.9B
| $77.3M | 0.02% |
1,477,900
+371,100
| +34% | +$23.2M |
2024 Q2
8 quarters
|
|
436
PUT
Block Inc
XYZ
$45.9B
| $77.3M | 0.02% |
1,017,100
-304,900
| -23% | -$21.4M |
2018 Q4
30 quarters
|
|
437
CALL
Affirm
AFRM
$23.6B
| $77.1M | 0.02% |
945,000
+34,700
| +4% | +$2.27M |
2021 Q2
20 quarters
|
|
438
CALL
SLB Ltd
SLB
$78.7B
| $77M | 0.02% |
1,657,300
+188,300
| +13% | +$10.1M |
2018 Q4
30 quarters
|
|
439
CALL
Blackstone
BX
$94.1B
| $76.6M | 0.02% |
651,100
+128,200
| +25% | +$15.4M |
2021 Q3
19 quarters
|
|
440
PUT
KKR & Co
KKR
$82B
| $76.3M | 0.02% |
830,900
-134,000
| -14% | -$13M |
2023 Q4
10 quarters
|
|
|
SCIU
441
PUT
DELISTED
Global X Scientific Beta US ETF
SCIU
| $76.2M | 0.02% |
1,291,000
+159,800
| +14% | +$9.44M |
2024 Q1
9 quarters
|
|
442
PUT
Hims & Hers Health
HIMS
$6.47B
| $75.6M | 0.02% |
2,181,700
+26,800
| +1% | +$719K |
2024 Q1
9 quarters
|
|
443
PUT
Agnico Eagle Mines
AEM
$88.1B
| $75.4M | 0.02% |
486,200
+136,800
| +39% | +$25.3M |
2019 Q2
28 quarters
|
|
444
PUT
Talen Energy Corp
TLN
$15.5B
| $75.4M | 0.02% |
196,200
+93,200
| +90% | +$34.2M |
2024 Q4
6 quarters
|
|
445
PUT
Zoom
ZM
$27.9B
| $75.3M | 0.02% |
873,000
+59,900
| +7% | +$5.66M |
2019 Q2
28 quarters
|
|
446
CALL
ProShares UltraPro Short QQQ
SQQQ
$2.19B
| $75M | 0.02% |
2,065,200
+382,300
| +23% | +$18.4M |
2025 Q4
2 quarters
|
|
447
PUT
Fortinet
FTNT
$132B
| $74.9M | 0.02% |
487,500
+98,400
| +25% | +$11.4M |
2023 Q2
12 quarters
|
|
448
CALL
S&P Global
SPGI
$133B
| $74.8M | 0.02% |
183,700
+25,000
| +16% | +$10.6M |
2021 Q3
19 quarters
|
|
449
PUT
Merck
MRK
$358B
| $74.5M | 0.02% |
579,600
-162,900
| -22% | -$19.1M |
2022 Q1
17 quarters
|
|
450
AST SpaceMobile
ASTS
$11.9B
| $74.3M | 0.02% |
836,000
+806,466
| +2,731% | +$70.3M |
2024 Q3
7 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.