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 | |
|---|---|---|---|---|---|---|
1851
PUT
Cenovus Energy
CVE
$59.7B
| $6.75M | ﹤0.01% |
271,900
-70,200
| -21% | -$1.94M |
|
1852
CALL
American International
AIG
$39.8B
| $6.71M | ﹤0.01% |
90,000
-158,600
| -64% | -$12.1M |
|
1853
PUT
Illinois Tool Works
ITW
$76.9B
| $6.71M | ﹤0.01% |
24,800
-8,300
| -25% | -$2.15M |
|
1854
CALL
Dynatrace
DT
$15B
| $6.71M | ﹤0.01% |
152,700
+57,500
| +60% | +$2.24M |
|
1855
CALL
KB Home
KBH
$3.2B
| $6.7M | ﹤0.01% |
107,100
-19,400
| -15% | -$1.01M |
|
1856
CALL
Boyd Gaming
BYD
$5.67B
| $6.7M | ﹤0.01% |
75,800
+20,100
| +36% | +$1.71M |
|
1857
PUT
Edison International
EIX
$21.8B
| $6.69M | ﹤0.01% |
89,900
-167,300
| -65% | -$11.9M |
|
1858
CALL
Lincoln Electric
LECO
$15.1B
| $6.69M | ﹤0.01% |
25,200
+18,900
| +300% | +$4.95M |
|
1859
PUT
Joby Aviation
JOBY
$6.67B
| $6.67M | ﹤0.01% |
747,200
+299,900
| +67% | +$2.9M |
|
1860
CALL
PACS Group
PACS
$6.73B
| $6.66M | ﹤0.01% |
156,300
-4,500
| -3% | -$162K |
|
1861
Modine Manufacturing
MOD
$10.3B
| $6.66M | ﹤0.01% |
24,940
-3,888
| -13% | -$1.02M |
|
|
1862
PUT
KB Home
KBH
$3.2B
| $6.65M | ﹤0.01% |
106,300
+36,200
| +52% | +$1.88M |
|
|
NNE
1863
PUT
Nano Nuclear Energy
NNE
$952M
| $6.65M | ﹤0.01% |
314,600
+231,400
| +278% | +$5.7M |
|
1864
Southwest Airlines
LUV
$19.4B
| $6.65M | ﹤0.01% |
129,324
+74,594
| +136% | +$3.13M |
|
1865
PUT
Hershey
HSY
$34.8B
| $6.65M | ﹤0.01% |
37,900
-20,000
| -35% | -$3.77M |
|
1866
PUT
Johnson Controls International
JCI
$87.8B
| $6.65M | ﹤0.01% |
45,500
-21,400
| -32% | -$3.02M |
|
1867
PUT
Enbridge
ENB
$109B
| $6.65M | ﹤0.01% |
122,600
+29,000
| +31% | +$1.59M |
|
1868
CALL
Century Aluminum
CENX
$4.63B
| $6.64M | ﹤0.01% |
144,400
+3,200
| +2% | +$193K |
|
1869
PUT
Aon
AON
$68.5B
| $6.63M | ﹤0.01% |
20,000
+9,000
| +82% | +$2.9M |
|
1870
CALL
Flowserve
FLS
$9.74B
| $6.62M | ﹤0.01% |
89,200
+66,700
| +296% | +$5.07M |
|
1871
PUT
APA Corp
APA
$15B
| $6.61M | ﹤0.01% |
203,100
-6,900
| -3% | -$259K |
|
1872
CALL
Enovix
ENVX
$729M
| $6.61M | ﹤0.01% |
1,089,400
+813,600
| +295% | +$5.39M |
|
1873
Kroger
KR
$35.9B
| $6.61M | ﹤0.01% |
+119,009
| New | +$7.76M |
|
1874
CALL
Lamb Weston
LW
$6.86B
| $6.61M | ﹤0.01% |
153,000
-86,600
| -36% | -$3.73M |
|
1875
CALL
John Wiley & Sons Class A
WLY
$2.44B
| $6.6M | ﹤0.01% |
136,100
+99,500
| +272% | +$4.18M |
|
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.