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 |
SNDK
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 | |
|---|---|---|---|---|---|---|
576
PUT
Align Technology
ALGN
$11.3B
| $53.8M | 0.01% |
318,800
+5,100
| +2% | +$885K |
|
577
CALL
Phillips 66
PSX
$102B
| $53.7M | 0.01% |
317,900
+16,000
| +5% | +$2.75M |
|
578
CALL
Northrop Grumman
NOC
$73.2B
| $53.7M | 0.01% |
105,400
+10,500
| +11% | +$6.06M |
|
579
PUT
Honeywell
HON
$66.4B
| $53.6M | 0.01% |
239,500
-75,300
| -24% | -$16.8M |
|
580
PUT
Dollar General
DG
$29.4B
| $53.5M | 0.01% |
464,900
+77,600
| +20% | +$8.82M |
|
581
CALL
Centene
CNC
$33.1B
| $53.2M | 0.01% |
828,500
-317,200
| -28% | -$17M |
|
582
CALL
Southern Company
SO
$101B
| $52.8M | 0.01% |
551,200
+191,400
| +53% | +$18M |
|
583
CALL
American Electric Power
AEP
$67.8B
| $52.7M | 0.01% |
385,400
+158,500
| +70% | +$20.9M |
|
584
CALL
Chubb
CB
$132B
| $52.7M | 0.01% |
154,700
-65,100
| -30% | -$21.2M |
|
585
PUT
Pfizer
PFE
$162B
| $52.6M | 0.01% |
2,185,200
+762,400
| +54% | +$19.9M |
|
586
PUT
AeroVironment
AVAV
$7.35B
| $52.6M | 0.01% |
318,600
+143,600
| +82% | +$25.7M |
|
587
Walmart Inc
WMT
$850B
| $52.5M | 0.01% |
+463,314
| New | +$57.5M |
|
|
NBIS
588
Nebius Group N.V.
NBIS
$61.5B
| $52.4M | 0.01% |
189,753
+117,791
| +164% | +$23.3M |
|
589
PUT
S&P Global
SPGI
$131B
| $52.1M | 0.01% |
128,000
+29,300
| +30% | +$12.4M |
|
590
CALL
Halliburton
HAL
$30.9B
| $52.1M | 0.01% |
1,534,100
+187,700
| +14% | +$7.33M |
|
591
PUT
TeraWulf
WULF
$8.24B
| $51.8M | 0.01% |
2,096,200
-379,100
| -15% | -$8.72M |
|
592
First Solar
FSLR
$22B
| $51.7M | 0.01% |
219,295
+200,903
| +1,092% | +$47.1M |
|
593
PUT
Elevance Health
ELV
$88.4B
| $51.7M | 0.01% |
133,600
+11,200
| +9% | +$4.15M |
|
594
PUT
Ross Stores
ROST
$73.7B
| $50.9M | 0.01% |
239,300
+98,600
| +70% | +$22.2M |
|
595
PUT
GameStop
GME
$8.6B
| $50.8M | 0.01% |
2,300,300
+323,500
| +16% | +$7.41M |
|
596
CALL
Carpenter Technology
CRS
$23.6B
| $50.3M | 0.01% |
81,600
+30,500
| +60% | +$14.4M |
|
597
CALL
eBay
EBAY
$46B
| $50.3M | 0.01% |
449,800
+191,600
| +74% | +$20.4M |
|
598
PUT
Workday
WDAY
$47.2B
| $50.2M | 0.01% |
410,300
+165,300
| +67% | +$20.9M |
|
599
CALL
Waste Management
WM
$87.5B
| $50.1M | 0.01% |
225,000
+85,600
| +61% | +$19M |
|
600
PUT
NXP Semiconductors
NXPI
$57.5B
| $50M | 0.01% |
177,900
+110,600
| +164% | +$30.5M |
|
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.