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 |
iShares Bitcoin Trust
IBIT
|
+$232M |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$168M |
| 3 |
Apple
AAPL
|
+$149M |
| 4 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$136M |
| 5 |
UnitedHealth
UNH
|
+$110M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$153M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$127M |
| 3 |
Advanced Micro Devices
AMD
|
+$97.1M |
| 4 |
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 | |
|---|---|---|---|---|---|---|
751
PUT
Teradyne
TER
$59.3B
| $17.8M | 0.01% |
198,200
+103,300
| +109% | +$8.25M |
|
752
CALL
Jabil
JBL
$37.4B
| $17.8M | 0.01% |
81,700
+15,900
| +24% | +$2.58M |
|
753
PUT
FTAI Aviation
FTAI
$23.2B
| $17.7M | 0.01% |
153,700
-94,000
| -38% | -$10.5M |
|
754
CALL
Nutanix
NTNX
$17.4B
| $17.6M | 0.01% |
229,800
+23,200
| +11% | +$1.67M |
|
755
PUT
KKR & Co
KKR
$99.6B
| $17.5M | 0.01% |
131,300
+27,700
| +27% | +$3.24M |
|
756
CALL
Caesars Entertainment
CZR
$6.06B
| $17.3M | 0.01% |
609,400
+220,500
| +57% | +$5.99M |
|
757
CALL
Duke Energy
DUK
$96.1B
| $17.3M | 0.01% |
146,200
-40,700
| -22% | -$4.8M |
|
758
FedEx
FDX
$76.3B
| $17.2M | 0.01% |
75,700
+43,603
| +136% | +$9.55M |
|
759
CALL
Monolithic Power Systems
MPWR
$68.9B
| $17.2M | 0.01% |
23,500
-14,800
| -39% | -$9.43M |
|
760
CALL
Transmedics
TMDX
$3.1B
| $17.2M | 0.01% |
128,100
+44,200
| +53% | +$4.85M |
|
761
PUT
NuScale Power
SMR
$4.06B
| $17.1M | 0.01% |
433,500
+207,600
| +92% | +$5.21M |
|
762
CALL
Flutter Entertainment
FLUT
$17.2B
| $17.1M | 0.01% |
60,000
-16,600
| -22% | -$4.07M |
|
763
PUT
Zebra Technologies
ZBRA
$18.1B
| $17.1M | 0.01% |
+55,600
| New | +$15.1M |
|
764
CALL
Simon Property Group
SPG
$71B
| $17.1M | 0.01% |
106,400
-4,700
| -4% | -$743K |
|
765
CALL
Mobileye
MBLY
$7.54B
| $17.1M | 0.01% |
948,500
-77,200
| -8% | -$1.18M |
|
766
CALL
Energy Transfer Partners
ET
$71.6B
| $17M | 0.01% |
940,200
-105,400
| -10% | -$1.84M |
|
767
CALL
Invesco S&P SmallCap Low Volatility ETF
XSLV
$247M
| $17M | 0.01% |
332,100
+187,600
| +130% | +$8.45M |
|
768
PUT
W.W. Grainger
GWW
$61.3B
| $17M | 0.01% |
16,300
-1,000
| -6% | -$1.04M |
|
769
CALL
Medtronic
MDT
$116B
| $17M | 0.01% |
194,500
-55,300
| -22% | -$4.69M |
|
770
PUT
iShares MSCI Australia ETF
EWA
$1.46B
| $16.9M | 0.01% |
484,300
+77,700
| +19% | +$1.94M |
|
771
CALL
Northern Trust
NTRS
$34.4B
| $16.8M | 0.01% |
132,500
+106,600
| +412% | +$10.9M |
|
772
PUT
Las Vegas Sands
LVS
$29.6B
| $16.8M | 0.01% |
385,900
+82,600
| +27% | +$3.21M |
|
773
CALL
AerCap
AER
$23.5B
| $16.7M | 0.01% |
143,100
+62,100
| +77% | +$6.71M |
|
774
PUT
Rubrik
RBRK
$20B
| $16.7M | 0.01% |
186,800
-10,000
| -5% | -$791K |
|
|
775
CALL
Rubrik
RBRK
$20B
| $16.7M | 0.01% |
186,700
+400
| +0.2% | +$31.6K |
|
Similar funds
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.