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 | |
|---|---|---|---|---|---|---|
876
CALL
Welltower
WELL
$171B
| $18.6M | 0.01% |
100,300
-27,200
| -21% | -$5.08M |
|
877
CALL
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$108M
| $18.6M | 0.01% |
564,900
-475,600
| -46% | -$15.1M |
|
878
CALL
NRG Energy
NRG
$24.8B
| $18.5M | 0.01% |
116,300
-3,400
| -3% | -$563K |
|
879
CALL
Plains All American Pipeline
PAA
$16.1B
| $18.4M | 0.01% |
1,027,000
+341,700
| +50% | +$5.81M |
|
|
GAP
880
CALL
The Gap Inc
GAP
$7.37B
| $18.4M | 0.01% |
719,500
+305,300
| +74% | +$7.4M |
|
881
PUT
Stryker
SYK
$130B
| $18.3M | 0.01% |
52,200
+1,000
| +2% | +$364K |
|
882
PUT
Zillow
Z
$7.56B
| $18.3M | 0.01% |
268,300
-85,900
| -24% | -$6.22M |
|
883
CALL
BILL Holdings
BILL
$4.78B
| $18.3M | 0.01% |
334,700
-215,000
| -39% | -$11M |
|
884
CALL
Southwest Airlines
LUV
$23B
| $18.2M | 0.01% |
440,800
-269,400
| -38% | -$9.41M |
|
885
PUT
ProShares Ultra S&P500
SSO
$8.41B
| $18.2M | 0.01% |
307,300
-81,300
| -21% | -$4.65M |
|
886
PUT
Core Scientific
CORZ
$6.75B
| $18.2M | 0.01% |
1,251,000
+557,700
| +80% | +$9.72M |
|
887
PUT
iShares Gold Trust
IAU
$64.4B
| $18.2M | 0.01% |
224,100
+400
| +0.2% | +$31.3K |
|
888
CALL
Travelers Companies
TRV
$80.2B
| $18.2M | 0.01% |
62,700
+33,200
| +113% | +$9.34M |
|
889
PUT
Hecla Mining
HL
$11.3B
| $18.1M | 0.01% |
944,400
+568,000
| +151% | +$8.68M |
|
890
PUT
Crocs
CROX
$6.55B
| $18.1M | 0.01% |
211,700
-237,800
| -53% | -$19.9M |
|
891
CALL
GE HealthCare
GEHC
$32.4B
| $17.9M | 0.01% |
218,600
+900
| +0.4% | +$70.1K |
|
|
ZVOL
892
CALL
Volatility Premium Plus ETF
ZVOL
$15.2M
| $17.9M | 0.01% |
+818,400
| New | +$9.15M |
|
893
CALL
PACCAR
PCAR
$70.1B
| $17.9M | 0.01% |
163,600
+51,200
| +46% | +$5.25M |
|
894
CALL
LyondellBasell Industries
LYB
$19.2B
| $17.8M | 0.01% |
412,100
+46,200
| +13% | +$2.09M |
|
895
CALL
General Mills
GIS
$19.7B
| $17.8M | 0.01% |
383,600
+107,400
| +39% | +$5.1M |
|
896
iShares MSCI EAFE ETF
EFA
$80.2B
| $17.8M | 0.01% |
+184,956
| New | +$17.5M |
|
897
CALL
Symbotic
SYM
$5.22B
| $17.8M | 0.01% |
298,400
-15,700
| -5% | -$1.04M |
|
|
SPYM
898
State Street SPDR Portfolio S&P 500 ETF
SPYM
$169B
| $17.7M | 0.01% |
+221,234
| New | +$17.6M |
|
899
CALL
Cummins
CMI
$88.7B
| $17.7M | 0.01% |
34,700
-3,200
| -8% | -$1.5M |
|
900
CALL
Rio Tinto
RIO
$164B
| $17.7M | 0.01% |
221,300
+62,300
| +39% | +$4.48M |
|
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.