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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
+16.25%
1 Year Est. Return
+72.04%
3 Year Est. Return
+250.39%
5 Year Est. Return
+244.63%
10 Year Est. Return
–
AUM
$225B
AUM Growth
+$48.5B
Cap. Flow
+$13.1B
Cap. Flow %
5.84%
Top 10 Hldgs %
41.89%
Holding
3,685
New
615
Increased
1,602
Reduced
1,040
Closed
423

Top Buys

Rank Stock Value
1
IBIT icon
iShares Bitcoin Trust
IBIT
+$232M
2
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$168M
3
AAPL icon
Apple
AAPL
+$149M
4
XLF icon
State Street Financial Select Sector SPDR ETF
XLF
+$136M
5
UNH icon
UnitedHealth
UNH
+$110M

Top Sells

Rank Stock Value
1
QQQ icon
Invesco QQQ Trust
QQQ
+$153M
2
IWM icon
iShares Russell 2000 ETF
IWM
+$127M
3
AMD icon
Advanced Micro Devices
AMD
+$97.1M
4
TSM icon
TSMC
TSM
+$65.3M
5
SPYM
State Street SPDR Portfolio S&P 500 ETF
SPYM
+$57.6M

Sector Composition

Rank Sector Weight
1 Technology 0.32%
2 Consumer Discretionary 0.25%
3 Healthcare 0.13%
4 Communication Services 0.1%
5 Financials 0.1%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SPY icon
3576
State Street SPDR S&P 500 ETF Trust
SPY
$810B
– –
-13,040
Closed -$7.45M
SQQQ icon
3577
ProShares UltraPro Short QQQ
SQQQ
$1.75B
– –
-90,342
Closed -$17.3M
SRPT icon
3578
Sarepta Therapeutics
SRPT
$1.81B
– –
-17,985
Closed -$767K
SRS icon
3579
CALL
ProShares UltraShort Real Estate
SRS
$16.2M
– –
-10,500
Closed -$508K
SSO icon
3580
ProShares Ultra S&P500
SSO
$8.41B
– –
-127,374
Closed -$5.38M
STAA icon
3581
STAAR Surgical
STAA
$1.25B
– –
-12,681
Closed -$224K
STAA icon
3582
PUT
STAAR Surgical
STAA
$1.25B
– –
-32,400
Closed -$571K
ST icon
3583
Sensata Technologies
ST
$6.66B
– –
-13,500
Closed -$331K
STRL icon
3584
PUT
Sterling Infrastructure
STRL
$16.2B
– –
-10,700
Closed -$1.21M
SU icon
3585
Suncor Energy
SU
$73.4B
– –
-33,914
Closed -$1.23M
SVOL icon
3586
Simplify Volatility Premium ETF
SVOL
$533M
– –
-37,254
Closed -$677K
SWKS icon
3587
Skyworks Solutions
SWKS
$10.4B
– –
-16,091
Closed -$1.07M
TAN icon
3588
Invesco Solar ETF
TAN
$1.36B
– –
-31,593
Closed -$962K
TDC icon
3589
PUT
Teradata
TDC
$2.58B
– –
-21,800
Closed -$490K
TECK icon
3590
Teck Resources
TECK
$32.8B
– –
-35,037
Closed -$1.27M
TFC icon
3591
Truist Financial
TFC
$63.4B
– –
-28,534
Closed -$1.12M
TIGR
3592
UP Fintech Holding
TIGR
$877M
– –
-859,211
Closed -$7.18M
TIPT icon
3593
CALL
Tiptree Inc
TIPT
$673M
– –
-12,800
Closed -$308K
TLRY icon
3594
CALL
Tilray
TLRY
$602M
– –
-73,780
Closed -$485K
TLRY icon
3595
PUT
Tilray
TLRY
$602M
– –
-43,650
Closed -$287K
TME icon
3596
Tencent Music
TME
$16.2B
– –
-30,479
Closed -$479K
TNDM icon
3597
PUT
Tandem Diabetes Care
TNDM
$1.59B
– –
-17,200
Closed -$330K
TNK icon
3598
Teekay Tankers
TNK
$2.64B
– –
-10,728
Closed -$459K
TNL icon
3599
CALL
Travel + Leisure Co
TNL
$4.5B
– –
-10,000
Closed -$463K
TPL icon
3600
PUT
Texas Pacific Land
TPL
$24.2B
– –
-43,800
Closed -$19.3M
142 143
144
145 146

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IMC Chicago's Q2 2025 Portfolio in Review

As of Q2 2025, IMC Chicago held 3,685 positions worth $225B, up 27% from $177B the previous quarter. Its ten largest holdings account for 42% of the portfolio.

IMC Chicago deployed $13.1B of net new capital in Q2 2025, opening 615 new positions and adding to 1,602 existing holdings. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M.

By sector, the portfolio is most concentrated in Technology at 0.32% of assets, up from 0.28% a quarter earlier, followed by Consumer Discretionary and Healthcare.

On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $153M trimmed.

  • IMC Chicago's largest Q2 2025 buy was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
  • IMC Chicago added most to Sprott Physical Gold in Q2 2025, an estimated $77.8M increase.
  • IMC Chicago's biggest Q2 2025 reduction was Invesco QQQ Trust, cutting an estimated $153M.
  • IMC Chicago fully exited Advanced Micro Devices in Q2 2025, selling an estimated $97.1M.
  • IMC Chicago's ten largest holdings make up 42% of its $225B portfolio in Q2 2025.
  • IMC Chicago opened 615 new positions and closed 423 in Q2 2025.
  • IMC Chicago's portfolio value rose 27% quarter-over-quarter to $225B.

Based on IMC Chicago's 13F filing for Q2 2025, filed 22 Jul 2025.