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 | |
|---|---|---|---|---|---|---|
2776
CALL
Ormat Technologies
ORA
$7.01B
| $1.29M | ﹤0.01% |
11,700
-4,700
| -29% | -$514K |
|
2777
PUT
Global X MSCI Norway ETF
NORW
$87.2M
| $1.29M | ﹤0.01% |
14,100
-5,200
| -27% | -$153K |
|
2778
CALL
Descartes Systems
DSGX
$6.83B
| $1.29M | ﹤0.01% |
+14,700
| New | +$1.31M |
|
|
GLDB
2779
CALL
IDX Alternative FIAT ETF
GLDB
$36.2M
| $1.29M | ﹤0.01% |
+269,100
| New | +$6.42M |
|
2780
CALL
ARK Autonomous Technology & Robotics ETF
ARKQ
$2.06B
| $1.28M | ﹤0.01% |
+11,200
| New | +$1.29M |
|
|
HNGE
2781
CALL
Hinge Health
HNGE
$7.39B
| $1.28M | ﹤0.01% |
+27,600
| New | +$1.33M |
|
2782
CALL
Schrodinger
SDGR
$1.43B
| $1.28M | ﹤0.01% |
71,700
+33,600
| +88% | +$637K |
|
2783
PUT
Scholar Rock
SRRK
$6.32B
| $1.28M | ﹤0.01% |
29,100
-27,300
| -48% | -$1.02M |
|
|
GRAL
2784
GRAIL Inc
GRAL
$3.32B
| $1.28M | ﹤0.01% |
+14,971
| New | +$1.29M |
|
2785
CALL
Loews
L
$23.2B
| $1.27M | ﹤0.01% |
12,100
+1,000
| +9% | +$103K |
|
|
WAY
2786
CALL
Waystar Holding Corp
WAY
$4.77B
| $1.27M | ﹤0.01% |
38,900
+2,300
| +6% | +$81.9K |
|
2787
CALL
Direxion Daily S&P Biotech Bear 3X ETF
LABD
$39.4M
| $1.27M | ﹤0.01% |
+60,400
| New | +$1.64M |
|
2788
CALL
Freshworks
FRSH
$3.31B
| $1.27M | ﹤0.01% |
103,800
+78,100
| +304% | +$923K |
|
2789
State Street SPDR S&P Metals & Mining ETF
XME
$4.55B
| $1.27M | ﹤0.01% |
+12,231
| New | +$1.21M |
|
2790
PUT
NextDecade
NEXT
$1.8B
| $1.27M | ﹤0.01% |
240,200
+71,700
| +43% | +$428K |
|
2791
CALL
Marriott Vacations Worldwide
VAC
$3.98B
| $1.26M | ﹤0.01% |
+21,900
| New | +$1.29M |
|
|
TSSI
2792
CALL
TSS Inc
TSSI
$324M
| $1.26M | ﹤0.01% |
+178,200
| New | +$2.3M |
|
2793
CALL
TC Energy
TRP
$66.7B
| $1.26M | ﹤0.01% |
22,900
-23,300
| -50% | -$1.24M |
|
2794
PUT
Academy Sports + Outdoors
ASO
$3.06B
| $1.26M | ﹤0.01% |
25,200
-3,600
| -13% | -$179K |
|
2795
PUT
Unum
UNM
$14.5B
| $1.26M | ﹤0.01% |
+16,200
| New | +$1.24M |
|
2796
CALL
American Battery Technology Co
ABAT
$359M
| $1.25M | ﹤0.01% |
+375,400
| New | +$1.76M |
|
2797
CALL
ArcBest
ARCB
$3.02B
| $1.25M | ﹤0.01% |
16,900
+3,200
| +23% | +$228K |
|
2798
GameStop
GME
$8.39B
| $1.25M | ﹤0.01% |
62,383
-523,473
| -89% | -$11.7M |
|
2799
CALL
Mattel
MAT
$4.34B
| $1.25M | ﹤0.01% |
63,100
+8,400
| +15% | +$162K |
|
2800
CALL
Atmus Filtration Technologies
ATMU
$4.1B
| $1.25M | ﹤0.01% |
24,100
+2,700
| +13% | +$131K |
|
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.