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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
HTHT icon
6526
CALL
Huazhu Hotels Group
HTHT
$14.1B
– –
-16,000
Closed -$805K
HUBG icon
6527
PUT
HUB Group
HUBG
$2.24B
– –
-9,300
Closed -$335K
HUM icon
6528
Humana
HUM
$48.2B
– –
-54,214
Closed -$15.4M
HYLN icon
6529
Hyliion Holdings
HYLN
$659M
– –
-94,793
Closed -$394K
PPLI
6530
CALL
People Inc
PPLI
$2.9B
– –
-5,600
Closed -$224K
IBIT icon
6531
iShares Bitcoin Trust
IBIT
$61.8B
– –
-4,332,641
Closed -$176M
ICL icon
6532
CALL
ICL Group
ICL
$7.58B
– –
-11,400
Closed -$59.1K
IEFA icon
6533
iShares Core MSCI EAFE ETF
IEFA
$196B
– –
-19,173
Closed -$1.74M
IEI icon
6534
iShares 3-7 Year Treasury Bond ETF
IEI
$17.6B
– –
-3,033
Closed -$360K
IESC icon
6535
IES Holdings
IESC
$12.9B
– –
-1,348
Closed -$435K
IGV icon
6536
iShares Expanded Tech-Software Sector ETF
IGV
$14.1B
– –
-221,893
Closed -$17.8M
IHI icon
6537
iShares US Medical Devices ETF
IHI
$3.43B
– –
-5,066
Closed -$270K
IHRT icon
6538
PUT
iHeartMedia
IHRT
$435M
– –
-10,900
Closed -$31.8K
IIPR icon
6539
Innovative Industrial Properties
IIPR
$1.58B
– –
-7,508
Closed -$422K
INDV icon
6540
Indivior Pharmaceuticals
INDV
$4.12B
– –
-10,723
Closed -$389K
INO icon
6541
Inovio Pharmaceuticals
INO
$148M
– –
-37,889
Closed -$45K
INSG icon
6542
CALL
Inseego
INSG
$69.6M
– –
-15,700
Closed -$175K
INSP icon
6543
Inspire Medical Systems
INSP
$1.82B
– –
-11,518
Closed -$546K
IPI icon
6544
Intrepid Potash
IPI
$545M
– –
-11,585
Closed -$441K
IA
6545
Innovative Solutions & Support
IA
$331M
– –
-19,979
Closed -$387K
ITGR icon
6546
CALL
Integer Holdings
ITGR
$4.3B
– –
-4,000
Closed -$352K
IWDL
6547
DELISTED
ETRACS 2x Leveraged US Value Factor TR ETN
IWDL
– –
-6,996
Closed -$343K
IWML
6548
DELISTED
ETRACS 2x Leveraged US Size Factor TR ETN
IWML
– –
-25,375
Closed -$589K
IYW icon
6549
iShares US Technology ETF
IYW
$25.5B
– –
-2,449
Closed -$444K
JAKK icon
6550
CALL
Jakks Pacific
JAKK
$281M
– –
-17,100
Closed -$341K
260 261
262
263 264

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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.