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 | |
|---|---|---|---|---|---|---|
|
NBIS
601
PUT
Nebius Group N.V.
NBIS
$49.1B
| $25.5M | 0.01% |
461,200
-900
| -0.2% | -$31K |
|
602
PUT
Microchip Technology
MCHP
$44B
| $25.5M | 0.01% |
362,400
+137,400
| +61% | +$7.55M |
|
603
PUT
SLB Ltd
SLB
$79.7B
| $25.5M | 0.01% |
753,200
+273,100
| +57% | +$9.47M |
|
604
CALL
Toll Brothers
TOL
$14.3B
| $25.2M | 0.01% |
220,500
+75,500
| +52% | +$7.83M |
|
605
CALL
NuScale Power
SMR
$4.06B
| $25.1M | 0.01% |
634,800
+359,600
| +131% | +$9.02M |
|
606
CALL
CRISPR Therapeutics
CRSP
$5.23B
| $25.1M | 0.01% |
516,200
+281,800
| +120% | +$10.9M |
|
607
Boeing
BA
$184B
| $25M | 0.01% |
119,442
+52,428
| +78% | +$9.9M |
|
608
CALL
Riot Platforms
RIOT
$7.65B
| $24.9M | 0.01% |
2,206,700
-682,000
| -24% | -$5.8M |
|
609
CALL
FTAI Aviation
FTAI
$23.2B
| $24.8M | 0.01% |
215,900
-50,800
| -19% | -$5.68M |
|
610
PUT
Aon
AON
$75.6B
| $24.8M | 0.01% |
69,400
+49,500
| +249% | +$17.9M |
|
611
PUT
Danaher
DHR
$146B
| $24.7M | 0.01% |
125,200
+15,400
| +14% | +$2.99M |
|
612
PUT
Altria Group
MO
$109B
| $24.7M | 0.01% |
421,600
+39,600
| +10% | +$2.33M |
|
613
CALL
Centrus Energy
LEU
$3.77B
| $24.6M | 0.01% |
134,500
+59,600
| +80% | +$6.36M |
|
614
PUT
Chubb
CB
$134B
| $24.6M | 0.01% |
84,900
-15,700
| -16% | -$4.52M |
|
615
PUT
The Mosaic Company
MOS
$7.34B
| $24.5M | 0.01% |
672,500
+486,600
| +262% | +$15.6M |
|
616
CALL
Five Below
FIVE
$13B
| $24.5M | 0.01% |
187,000
-86,700
| -32% | -$8.44M |
|
617
CALL
VanEck Durable High Dividend ETF
DURA
$39.1M
| $24.5M | 0.01% |
106,500
+16,400
| +18% | +$522K |
|
618
CALL
D.R. Horton
DHI
$42.2B
| $24.5M | 0.01% |
189,900
+23,400
| +14% | +$2.88M |
|
619
PUT
Invesco S&P SmallCap Low Volatility ETF
XSLV
$247M
| $24.4M | 0.01% |
488,100
+171,800
| +54% | +$7.74M |
|
620
PUT
Pinterest
PINS
$13.4B
| $24.4M | 0.01% |
680,100
-5,800
| -0.8% | -$176K |
|
|
CYBR
621
CALL
DELISTED
CyberArk
CYBR
| $24.4M | 0.01% |
59,900
+18,800
| +46% | +$6.85M |
|
622
CALL
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$108M
| $24.3M | 0.01% |
883,300
-565,300
| -39% | -$14.6M |
|
623
CALL
CME Group
CME
$93.2B
| $24.3M | 0.01% |
88,000
+15,000
| +21% | +$4.08M |
|
624
PUT
Caesars Entertainment
CZR
$6.06B
| $24.2M | 0.01% |
854,000
+517,700
| +154% | +$14.1M |
|
|
625
PUT
VanEck Durable High Dividend ETF
DURA
$39.1M
| $24.1M | 0.01% |
104,700
+11,200
| +12% | +$357K |
|
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.