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 | |
|---|---|---|---|---|---|---|
2026
CALL
OR Royalties Inc
OR
$6.31B
| $3.36M | ﹤0.01% |
+94,900
| New | +$3.33M |
|
2027
CALL
Universal Health Services
UHS
$9.94B
| $3.36M | ﹤0.01% |
15,400
+3,300
| +27% | +$729K |
|
2028
PUT
Petrobras
PBR
$116B
| $3.36M | ﹤0.01% |
283,300
-91,200
| -24% | -$1.11M |
|
2029
CALL
Genuine Parts
GPC
$18.6B
| $3.36M | ﹤0.01% |
27,300
-25,200
| -48% | -$3.26M |
|
2030
CALL
United States Copper Index Fund
CPER
$778M
| $3.36M | ﹤0.01% |
96,000
+62,800
| +189% | +$2.01M |
|
2031
ProShares Ultra Semiconductors
USD
$2.8B
| $3.35M | ﹤0.01% |
63,823
-41,591
| -39% | -$2.21M |
|
2032
PUT
POET Technologies
POET
$1.48B
| $3.35M | ﹤0.01% |
529,300
+380,400
| +255% | +$2.41M |
|
2033
PUT
Goodyear
GT
$1.75B
| $3.35M | ﹤0.01% |
382,300
-102,500
| -21% | -$808K |
|
2034
Biogen
BIIB
$30.1B
| $3.35M | ﹤0.01% |
+19,011
| New | +$3.11M |
|
2035
CALL
Semtech
SMTC
$12.2B
| $3.34M | ﹤0.01% |
45,300
-6,400
| -12% | -$454K |
|
|
PONY
2036
CALL
Pony AI Inc
PONY
$3.68B
| $3.34M | ﹤0.01% |
+230,100
| New | +$3.83M |
|
2037
Toronto Dominion Bank
TD
$201B
| $3.33M | ﹤0.01% |
+35,359
| New | +$2.99M |
|
2038
PUT
Vale
VALE
$60.9B
| $3.33M | ﹤0.01% |
255,400
+121,500
| +91% | +$1.48M |
|
2039
CALL
Fastly Inc
FSLY
$4.58B
| $3.32M | ﹤0.01% |
326,500
+140,200
| +75% | +$1.38M |
|
2040
CALL
Gold Fields
GFI
$36B
| $3.32M | ﹤0.01% |
76,100
-2,400
| -3% | -$100K |
|
2041
Global Payments
GPN
$22.7B
| $3.31M | ﹤0.01% |
42,731
-46,715
| -52% | -$3.76M |
|
2042
PUT
Consolidated Edison
ED
$39.8B
| $3.31M | ﹤0.01% |
33,300
-1,100
| -3% | -$109K |
|
2043
Sanofi
SNY
$104B
| $3.3M | ﹤0.01% |
68,037
+57,329
| +535% | +$2.84M |
|
2044
CALL
Ventas
VTR
$44.6B
| $3.3M | ﹤0.01% |
42,600
-16,800
| -28% | -$1.27M |
|
2045
PUT
Inspire Medical Systems
INSP
$1.71B
| $3.29M | ﹤0.01% |
35,700
+19,400
| +119% | +$1.86M |
|
2046
ProShares Ultra Gold
UGL
$801M
| $3.28M | ﹤0.01% |
59,158
+15,707
| +36% | +$823K |
|
2047
CALL
ProShares UltraShort Semiconductors
SSG
$37.8M
| $3.28M | ﹤0.01% |
+66,200
| New | +$2.15M |
|
2048
PUT
KB Home
KBH
$3.54B
| $3.28M | ﹤0.01% |
58,100
-24,800
| -30% | -$1.53M |
|
|
STUB
2049
PUT
StubHub Holdings
STUB
$3.07B
| $3.28M | ﹤0.01% |
+242,200
| New | +$3.81M |
|
2050
CALL
TripAdvisor
TRIP
$1.28B
| $3.27M | ﹤0.01% |
224,900
-87,700
| -28% | -$1.33M |
|
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.