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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
JAZZ icon
6551
PUT
Jazz Pharmaceuticals
JAZZ
$16B
– –
-1,500
Closed -$284K
JBHT icon
6552
JB Hunt Transport Services
JBHT
$25.7B
– –
-18,702
Closed -$4.8M
JBLU icon
6553
JetBlue
JBLU
$1.75B
– –
-74,294
Closed -$378K
JEF icon
6554
Jefferies Financial Group
JEF
$12.7B
– –
-107,363
Closed -$5.53M
JELD icon
6555
JELD-WEN Holding
JELD
$200M
– –
-10,108
Closed -$15.6K
JEPI icon
6556
JPMorgan Equity Premium Income ETF
JEPI
$45.8B
– –
-97,354
Closed -$5.52M
JHG
6557
DELISTED
Janus Henderson
JHG
– –
-14,535
Closed -$747K
JLL icon
6558
Jones Lang LaSalle
JLL
$16.7B
– –
-1,333
Closed -$414K
DFDV
6559
DeFi Development Corp
DFDV
$182M
– –
-20,494
Closed -$78.5K
KBE icon
6560
State Street SPDR S&P Bank ETF
KBE
$1.68B
– –
-36,834
Closed -$2.19M
KDP icon
6561
Keurig Dr Pepper
KDP
$44.3B
– –
-31,614
Closed -$921K
KGS icon
6562
Kodiak Gas Services
KGS
$6.33B
– –
-12,551
Closed -$853K
KMB icon
6563
Kimberly-Clark
KMB
$34.9B
– –
-72,167
Closed -$7.15M
KMT icon
6564
CALL
Kennametal
KMT
$2.36B
– –
-6,100
Closed -$220K
KMT icon
6565
Kennametal
KMT
$2.36B
– –
-647,514
Closed -$23.4M
KNF icon
6566
Knife River
KNF
$3.51B
– –
-3,958
Closed -$327K
KNF icon
6567
PUT
Knife River
KNF
$3.51B
– –
-5,100
Closed -$416K
KNTK icon
6568
CALL
Kinetik
KNTK
$4.38B
– –
-5,800
Closed -$281K
KOLD icon
6569
ProShares UltraShort Bloomberg Natural Gas
KOLD
$124M
– –
-76,357
Closed -$1.66M
KREF
6570
KKR Real Estate Finance Trust
KREF
$492M
– –
-10,309
Closed -$68.2K
KRYS icon
6571
Krystal Biotech
KRYS
$10.6B
– –
-1,591
Closed -$475K
LABD icon
6572
Direxion Daily S&P Biotech Bear 3X ETF
LABD
$83.6M
– –
-12,486
Closed -$168K
LABU icon
6573
Direxion Daily S&P Biotech Bull 3X ETF
LABU
$599M
– –
-1,558
Closed -$259K
LE icon
6574
PUT
Lands' End
LE
$328M
– –
-20,700
Closed -$233K
LEGN icon
6575
Legend Biotech
LEGN
$4.19B
– –
-17,894
Closed -$483K
261 262
263
264 265

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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.