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 | |
|---|---|---|---|---|---|---|
1951
Under Armour
UAA
$2.33B
| $3.66M | ﹤0.01% |
736,696
+38,131
| +5% | +$177K |
|
1952
PUT
Vicor
VICR
$9.73B
| $3.66M | ﹤0.01% |
33,400
+18,600
| +126% | +$1.58M |
|
1953
PUT
Harmony Gold Mining
HMY
$12.2B
| $3.66M | ﹤0.01% |
183,700
+21,900
| +14% | +$409K |
|
1954
CALL
Incyte
INCY
$24.5B
| $3.65M | ﹤0.01% |
37,000
+14,900
| +67% | +$1.44M |
|
1955
PUT
Equinor
EQNR
$97.6B
| $3.65M | ﹤0.01% |
154,600
+41,700
| +37% | +$983K |
|
1956
CALL
Asana
ASAN
$2.14B
| $3.65M | ﹤0.01% |
266,100
+123,600
| +87% | +$1.7M |
|
1957
PUT
Rambus
RMBS
$10.4B
| $3.65M | ﹤0.01% |
39,700
+9,400
| +31% | +$925K |
|
1958
CALL
VICI Properties
VICI
$28.7B
| $3.64M | ﹤0.01% |
129,500
+55,600
| +75% | +$1.65M |
|
1959
CALL
Ollie's Bargain Outlet
OLLI
$4.77B
| $3.64M | ﹤0.01% |
33,200
+11,300
| +52% | +$1.36M |
|
1960
PUT
Valaris
VAL
$6.11B
| $3.64M | ﹤0.01% |
72,200
-24,700
| -25% | -$1.33M |
|
1961
CALL
Kyndryl
KD
$2.91B
| $3.64M | ﹤0.01% |
137,000
+1,700
| +1% | +$46.1K |
|
1962
CALL
Procore
PCOR
$8.91B
| $3.64M | ﹤0.01% |
50,000
+18,900
| +61% | +$1.4M |
|
|
SERV
1963
CALL
Serve Robotics
SERV
$429M
| $3.63M | ﹤0.01% |
349,900
+83,200
| +31% | +$999K |
|
1964
PUT
Everest Group
EG
$14.1B
| $3.63M | ﹤0.01% |
10,700
-2,400
| -18% | -$793K |
|
1965
Nutanix
NTNX
$17.4B
| $3.62M | ﹤0.01% |
70,129
+58,318
| +494% | +$3.56M |
|
1966
PUT
Entegris
ENTG
$23B
| $3.62M | ﹤0.01% |
43,000
-4,800
| -10% | -$417K |
|
1967
CALL
Exelixis
EXEL
$12.7B
| $3.62M | ﹤0.01% |
82,600
+25,200
| +44% | +$1.04M |
|
1968
Sprott Uranium Miners ETF
URNM
$2.02B
| $3.61M | ﹤0.01% |
+65,806
| New | +$3.8M |
|
1969
PUT
Western Midstream Partners
WES
$20B
| $3.61M | ﹤0.01% |
91,300
+28,300
| +45% | +$1.1M |
|
1970
ProShares UltraPro Dow 30
UDOW
$929M
| $3.6M | ﹤0.01% |
62,249
-28,203
| -31% | -$1.58M |
|
1971
CALL
Texas Roadhouse
TXRH
$13.8B
| $3.6M | ﹤0.01% |
21,700
-7,600
| -26% | -$1.29M |
|
1972
CALL
Yeti Holdings
YETI
$3.8B
| $3.6M | ﹤0.01% |
81,500
-31,500
| -28% | -$1.21M |
|
1973
Royal Bank of Canada
RY
$293B
| $3.59M | ﹤0.01% |
+21,073
| New | +$3.24M |
|
1974
CALL
Planet Fitness
PLNT
$3.64B
| $3.59M | ﹤0.01% |
33,100
+200
| +0.6% | +$20.6K |
|
|
1975
PUT
Planet Fitness
PLNT
$3.64B
| $3.59M | ﹤0.01% |
33,100
+6,400
| +24% | +$659K |
|
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.