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 | |
|---|---|---|---|---|---|---|
2876
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$306M
| $490K | ﹤0.01% |
+13,963
| New | +$506K |
|
2877
ProShares Ultra Energy
DIG
$83.4M
| $486K | ﹤0.01% |
+14,612
| New | +$473K |
|
2878
PUT
Blackstone Secured Lending
BXSL
$5.83B
| $486K | ﹤0.01% |
+15,800
| New | +$482K |
|
2879
AngloGold Ashanti
AU
$48.1B
| $486K | ﹤0.01% |
+10,657
| New | +$459K |
|
2880
ProShares Ultra Health Care
RXL
$90.8M
| $485K | ﹤0.01% |
+11,931
| New | +$491K |
|
2881
PUT
AdaptHealth
AHCO
$760M
| $485K | ﹤0.01% |
51,400
+9,500
| +23% | +$83.8K |
|
|
NNDM
2882
Nano Dimension
NNDM
$348M
| $483K | ﹤0.01% |
298,345
-181
| -0.1% | -$277 |
|
2883
CALL
Cogent Communications
CCOI
$530M
| $482K | ﹤0.01% |
+10,000
| New | +$508K |
|
2884
CALL
UGI
UGI
$7.56B
| $481K | ﹤0.01% |
13,200
+1,100
| +9% | +$37.8K |
|
2885
CALL
Bausch Health
BHC
$2.37B
| $480K | ﹤0.01% |
72,100
-8,100
| -10% | -$41.6K |
|
|
JNPR
2886
CALL
DELISTED
Juniper Networks
JNPR
| $479K | ﹤0.01% |
12,000
-78,200
| -87% | -$2.8M |
|
|
LAC
2887
Lithium Americas
LAC
$1.24B
| $477K | ﹤0.01% |
178,095
+4,089
| +2% | +$11.3K |
|
2888
CALL
Banco Santander
SAN
$211B
| $477K | ﹤0.01% |
57,500
-1,500
| -3% | -$11.2K |
|
2889
PUT
Vodafone
VOD
$37.5B
| $477K | ﹤0.01% |
44,700
-21,200
| -32% | -$205K |
|
|
IRBT
2890
DELISTED
iRobot
IRBT
| $473K | ﹤0.01% |
151,270
+32,265
| +27% | +$89.2K |
|
|
PENG
2891
CALL
Penguin Solutions Inc
PENG
$3.12B
| $473K | ﹤0.01% |
23,900
-4,000
| -14% | -$72.4K |
|
2892
PUT
Simplify US Equity PLUS Convexity ETF
SPYC
$121M
| $473K | ﹤0.01% |
25,700
-9,700
| -27% | -$367K |
|
2893
CALL
Teucrium Corn Fund
CORN
$167M
| $472K | ﹤0.01% |
+26,700
| New | +$495K |
|
2894
PUT
Wolfspeed
WOLF
$1.64B
| $472K | ﹤0.01% |
1,183,700
-229,600
| -16% | -$524K |
|
2895
ETRACS 2x Leveraged US Size Factor TR ETN
IWML
$10.2M
| $471K | ﹤0.01% |
25,377
-449
| -2% | -$7.36K |
|
2896
CALL
Banco Bradesco
BBD
$34.3B
| $471K | ﹤0.01% |
+152,300
| New | +$401K |
|
2897
Annaly Capital Management
NLY
$17.6B
| $470K | ﹤0.01% |
24,993
+1,100
| +5% | +$20.9K |
|
2898
Denison Mines
DNN
$2.95B
| $470K | ﹤0.01% |
257,990
+5,269
| +2% | +$7.98K |
|
2899
United States Copper Index Fund
CPER
$771M
| $469K | ﹤0.01% |
+14,811
| New | +$439K |
|
2900
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.44B
| $468K | ﹤0.01% |
+17,442
| New | +$452K |
|
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.