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IMC Chicago

IMC Chicago Portfolio holdings

AUM $419B
1-Year Est. Return 72.04%
 

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.

This Fund
S&P 500
This Quarter Est. Return
+37.99%
1 Year Est. Return
+72.04%
3 Year Est. Return
+250.38%
5 Year Est. Return
+244.63%
10 Year Est. Return
–
AUM
$419B
AUM Growth
+$140B
Cap. Flow
+$2.99B
Cap. Flow %
0.71%
Top 10 Hldgs %
33.71%
Holding
6,955
New
1,282
Increased
3,251
Reduced
1,751
Closed
653

Top Buys

Rank Stock Value
1
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$568M
2
AMZN icon
Amazon
AMZN
+$341M
3
EWY icon
iShares MSCI South Korea ETF
EWY
+$278M
4
AAPL icon
Apple
AAPL
+$239M
5
TSM icon
TSMC
TSM
+$215M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$316M
2
TSLA icon
Tesla
TSLA
+$253M
3
MU icon
Micron Technology
MU
+$178M
4
IBIT icon
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
TTI icon
6801
TETRA Technologies
TTI
$1.03B
– –
-11,650
Closed -$114K
TTI icon
6802
PUT
TETRA Technologies
TTI
$1.03B
– –
-19,100
Closed -$163K
TTMI icon
6803
TTM Technologies
TTMI
$12.2B
– –
-24,902
Closed -$4.02M
TU icon
6804
CALL
Telus
TU
$15.3B
– –
-25,500
Closed -$327K
TUR icon
6805
iShares MSCI Turkey ETF
TUR
$218M
– –
-8,804
Closed -$340K
TWO
6806
CALL
DELISTED
Two Harbors Investment
TWO
– –
-23,300
Closed -$266K
TWO
6807
DELISTED
Two Harbors Investment
TWO
– –
-18,377
Closed -$220K
TWST icon
6808
Twist Bioscience
TWST
$8.47B
– –
-5,661
Closed -$368K
TWST icon
6809
PUT
Twist Bioscience
TWST
$8.47B
– –
-14,300
Closed -$680K
TX icon
6810
PUT
Ternium
TX
$11.4B
– –
-5,600
Closed -$225K
TXG icon
6811
10x Genomics
TXG
$8.24B
– –
-25,257
Closed -$662K
TXRH icon
6812
Texas Roadhouse
TXRH
$12.4B
– –
-2,555
Closed -$435K
TXT icon
6813
Textron
TXT
$13.7B
– –
-8,195
Closed -$745K
TYD icon
6814
Direxion Daily 7-10 Year Treasury Bull 3X ETF
TYD
$28M
– –
-9,935
Closed -$244K
U icon
6815
Unity
U
$18.5B
– –
-277,557
Closed -$7.38M
UAL icon
6816
United Airlines
UAL
$35.3B
– –
-291,255
Closed -$30.2M
UCC icon
6817
ProShares Ultra Consumer Discretionary
UCC
$9.06M
– –
-34,672
Closed -$1.47M
UGE icon
6818
ProShares Ultra Consumer Staples
UGE
$10.1M
– –
-32,634
Closed -$601K
ULCC icon
6819
Frontier Group Holdings
ULCC
$1.32B
– –
-48,812
Closed -$252K
UNP icon
6820
Union Pacific
UNP
$172B
– –
-25,623
Closed -$6.73M
UP icon
6821
Wheels Up
UP
$161M
– –
-1,854
Closed -$14.2K
UP icon
6822
PUT
Wheels Up
UP
$161M
– –
-1,350
Closed -$13.9K
UPRO icon
6823
ProShares UltraPro S&P 500
UPRO
$5.57B
– –
-33,148
Closed -$3.21M
URI icon
6824
United Rentals
URI
$61.9B
– –
-19,006
Closed -$18.1M
USML
6825
DELISTED
ETRACS 2x Leveraged MSCI US Minimum Volatility Factor TR ETN
USML
– –
-7,267
Closed -$292K
271 272
273
274 275

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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.