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 | |
|---|---|---|---|---|---|---|
1926
Direxion Daily Gold Miners Index Bull 2X ETF
NUGT
$1.3B
| $6.14M | ﹤0.01% |
52,482
+9,221
| +21% | +$1.57M |
|
1927
CALL
Curtiss-Wright
CW
$20.9B
| $6.14M | ﹤0.01% |
8,100
-2,200
| -21% | -$1.61M |
|
1928
CALL
Pitney Bowes
PBI
$2.39B
| $6.14M | ﹤0.01% |
350,200
+190,300
| +119% | +$2.91M |
|
1929
CALL
EPAM Systems
EPAM
$6.04B
| $6.13M | ﹤0.01% |
77,300
+13,700
| +22% | +$1.45M |
|
1930
CALL
FIVE9
FIVN
$2.49B
| $6.13M | ﹤0.01% |
287,600
-55,800
| -16% | -$1.1M |
|
1931
CALL
Evercore
EVR
$11.5B
| $6.11M | ﹤0.01% |
17,900
-4,900
| -21% | -$1.68M |
|
1932
PUT
GeneDx Holdings
WGS
$2.56B
| $6.09M | ﹤0.01% |
88,700
+53,500
| +152% | +$3.04M |
|
1933
PUT
Gildan
GIL
$9.89B
| $6.09M | ﹤0.01% |
118,000
+56,000
| +90% | +$3.22M |
|
1934
CALL
Watsco Inc
WSO
$13B
| $6.08M | ﹤0.01% |
14,600
+5,000
| +52% | +$2.01M |
|
1935
PUT
Texas Roadhouse
TXRH
$12.4B
| $6.07M | ﹤0.01% |
31,400
+17,400
| +124% | +$2.96M |
|
1936
CALL
Dave & Buster's
PLAY
$303M
| $6.07M | ﹤0.01% |
532,100
+379,700
| +249% | +$4.52M |
|
1937
PUT
Copart
CPRT
$31.2B
| $6.06M | ﹤0.01% |
215,000
+67,800
| +46% | +$2.19M |
|
1938
CALL
Mid-America Apartment Communities
MAA
$14.9B
| $6.06M | ﹤0.01% |
43,600
+33,200
| +319% | +$4.33M |
|
1939
PUT
PureCycle Technologies
PCT
$1.28B
| $6.05M | ﹤0.01% |
745,600
+404,900
| +119% | +$3.63M |
|
1940
CALL
Huntington Bancshares
HBAN
$34.4B
| $6.04M | ﹤0.01% |
340,600
+136,000
| +66% | +$2.24M |
|
1941
CALL
nLIGHT
LASR
$2.31B
| $6.03M | ﹤0.01% |
86,600
-68,800
| -44% | -$4.8M |
|
1942
CALL
Aurora
AUR
$12.7B
| $6.02M | ﹤0.01% |
883,100
+454,700
| +106% | +$2.78M |
|
1943
PUT
Pagaya Technologies
PGY
$1.92B
| $6.02M | ﹤0.01% |
329,700
-15,600
| -5% | -$221K |
|
1944
Transmedics
TMDX
$3.12B
| $6.01M | ﹤0.01% |
90,515
+62,823
| +227% | +$5.32M |
|
1945
CALL
Ramaco Resources Class A
METC
$837M
| $6.01M | ﹤0.01% |
454,100
+133,000
| +41% | +$1.94M |
|
1946
PUT
Copa Holdings
CPA
$5.4B
| $6.01M | ﹤0.01% |
38,600
+21,300
| +123% | +$2.77M |
|
1947
CALL
Vanguard Morningstar Mega Cap Growth ETF
MGK
$33.7B
| $6M | ﹤0.01% |
68,300
+22,300
| +48% | +$1.9M |
|
1948
CALL
Signet Jewelers
SIG
$3.31B
| $6M | ﹤0.01% |
69,600
-47,500
| -41% | -$4.11M |
|
1949
CALL
Mercury Systems
MRCY
$4.96B
| $5.99M | ﹤0.01% |
49,000
+39,000
| +390% | +$3.72M |
|
1950
Global X Uranium ETF
URA
$6.48B
| $5.99M | ﹤0.01% |
137,015
+94,528
| +222% | +$4.79M |
|
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.