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 Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
801
CALL
Devon Energy
DVN
$47.3B
| $22.1M | 0.01% |
603,000
+40,200
| +7% | +$1.4M |
|
802
PUT
Nu Holdings
NU
$66.9B
| $22M | 0.01% |
1,316,500
-116,700
| -8% | -$1.88M |
|
803
PUT
Simon Property Group
SPG
$72.3B
| $22M | 0.01% |
119,000
+16,600
| +16% | +$3.02M |
|
804
CALL
Energy Transfer Partners
ET
$69.3B
| $22M | 0.01% |
1,335,300
+100,400
| +8% | +$1.67M |
|
805
CALL
Chewy
CHWY
$9.63B
| $21.9M | 0.01% |
663,200
-39,700
| -6% | -$1.38M |
|
806
HCA Healthcare
HCA
$89.5B
| $21.9M | 0.01% |
+46,876
| New | +$21.8M |
|
807
CALL
CRH
CRH
$66.8B
| $21.9M | 0.01% |
175,100
-6,600
| -4% | -$786K |
|
808
CALL
Tenet Healthcare
THC
$21.1B
| $21.8M | 0.01% |
109,500
-8,200
| -7% | -$1.66M |
|
809
CALL
Builders FirstSource
BLDR
$8.04B
| $21.7M | 0.01% |
211,000
+23,300
| +12% | +$2.62M |
|
810
PUT
D.R. Horton
DHI
$42.3B
| $21.7M | 0.01% |
150,700
-60,100
| -29% | -$9.15M |
|
811
PUT
Chubb
CB
$135B
| $21.6M | 0.01% |
69,300
-30,300
| -30% | -$8.86M |
|
812
CALL
Trump Media & Technology Group
DJT
$2.83B
| $21.6M | 0.01% |
1,630,400
+239,400
| +17% | +$3.27M |
|
813
PUT
Air Products & Chemicals
APD
$67.6B
| $21.4M | 0.01% |
86,600
+54,600
| +171% | +$13.8M |
|
814
CALL
Energy Fuels
UUUU
$3.53B
| $21.3M | 0.01% |
1,464,600
+819,800
| +127% | +$13.9M |
|
815
CALL
AB InBev
BUD
$165B
| $21.3M | 0.01% |
332,300
+54,300
| +20% | +$3.37M |
|
816
PUT
Opendoor
OPEN
$3.38B
| $21.2M | 0.01% |
3,638,800
-1,619,523
| -31% | -$11.6M |
|
817
CALL
Southern Company
SO
$107B
| $21.2M | 0.01% |
243,100
-125,400
| -34% | -$11.4M |
|
818
CALL
Enterprise Products Partners
EPD
$81.7B
| $21.2M | 0.01% |
660,700
+99,700
| +18% | +$3.15M |
|
819
PUT
Invesco S&P SmallCap Low Volatility ETF
XSLV
$249M
| $21.2M | 0.01% |
280,000
-54,700
| -16% | -$2.52M |
|
820
Synopsys
SNPS
$79.7B
| $21.1M | 0.01% |
44,948
+16,678
| +59% | +$7.41M |
|
821
PUT
Five Below
FIVE
$13.5B
| $21.1M | 0.01% |
111,900
+38,400
| +52% | +$6.24M |
|
822
CALL
GitLab
GTLB
$6.58B
| $21.1M | 0.01% |
561,200
-48,800
| -8% | -$2.11M |
|
823
CALL
Norwegian Cruise Line
NCLH
$8.84B
| $21.1M | 0.01% |
943,300
+48,600
| +5% | +$1.03M |
|
824
CALL
Caesars Entertainment
CZR
$6.14B
| $21M | 0.01% |
897,800
+396,700
| +79% | +$8.92M |
|
825
CALL
Comfort Systems
FIX
$59.6B
| $21M | 0.01% |
22,500
+5,700
| +34% | +$5.26M |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.