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 | |
|---|---|---|---|---|---|---|
2676
PUT
Halozyme
HALO
$11.6B
| $1.46M | ﹤0.01% |
+21,700
| New | +$1.46M |
|
2677
CALL
ICICI Bank
IBN
$107B
| $1.46M | ﹤0.01% |
49,000
-44,000
| -47% | -$1.35M |
|
2678
PUT
Portillo's
PTLO
$327M
| $1.46M | ﹤0.01% |
321,400
+63,600
| +25% | +$332K |
|
2679
PUT
Papa John's
PZZA
$801M
| $1.46M | ﹤0.01% |
37,900
-224,500
| -86% | -$9.92M |
|
2680
PUT
Ivanhoe Electric
IE
$1.77B
| $1.46M | ﹤0.01% |
91,200
+66,200
| +265% | +$947K |
|
2681
PUT
Lattice Semiconductor
LSCC
$17.9B
| $1.46M | ﹤0.01% |
19,800
+3,200
| +19% | +$228K |
|
2682
CALL
DHT Holdings
DHT
$2.93B
| $1.46M | ﹤0.01% |
119,300
+61,700
| +107% | +$777K |
|
2683
CALL
Genius Sports
GENI
$2.16B
| $1.46M | ﹤0.01% |
132,100
+11,700
| +10% | +$128K |
|
|
GRRR
2684
CALL
Gorilla Technology Group
GRRR
$389M
| $1.45M | ﹤0.01% |
133,200
-3,700
| -3% | -$55.1K |
|
2685
Aflac
AFL
$60.7B
| $1.45M | ﹤0.01% |
+13,132
| New | +$1.45M |
|
|
HTGCR
2686
CALL
DELISTED
HERCULES TECHNOLOGY GROWTH CAP INC TRANS RGTS TO PUR COM STK
HTGCR
| $1.45M | ﹤0.01% |
76,900
+35,200
| +84% | +$662K |
|
2687
Assured Guaranty
AGO
$3.31B
| $1.45M | ﹤0.01% |
+16,093
| New | +$1.39M |
|
2688
CALL
Stratasys
SSYS
$782M
| $1.44M | ﹤0.01% |
166,300
+52,000
| +45% | +$515K |
|
2689
CALL
FLEX LNG
FLNG
$1.58B
| $1.44M | ﹤0.01% |
57,700
+40,800
| +241% | +$1.04M |
|
2690
CALL
Core & Main
CNM
$8.73B
| $1.44M | ﹤0.01% |
27,700
-28,000
| -50% | -$1.44M |
|
2691
PUT
RingCentral
RNG
$5.3B
| $1.44M | ﹤0.01% |
49,800
+6,100
| +14% | +$174K |
|
2692
Direxion Daily 20+ Year Treasury Bull 3X ETF
TMF
$2.14B
| $1.44M | ﹤0.01% |
+38,528
| New | +$1.56M |
|
2693
CALL
CenterPoint Energy
CNP
$26.5B
| $1.44M | ﹤0.01% |
37,500
+1,700
| +5% | +$66.3K |
|
2694
PUT
Dynatrace
DT
$14.4B
| $1.43M | ﹤0.01% |
33,100
-1,900
| -5% | -$88.6K |
|
2695
PUT
Neurocrine Biosciences
NBIX
$16.5B
| $1.43M | ﹤0.01% |
+10,100
| New | +$1.46M |
|
2696
CALL
Bio-Techne
TECH
$11.2B
| $1.43M | ﹤0.01% |
+24,300
| New | +$1.48M |
|
2697
PUT
Host Hotels & Resorts
HST
$15.3B
| $1.43M | ﹤0.01% |
80,600
+11,600
| +17% | +$200K |
|
2698
PUT
Summit Therapeutics
SMMT
$12.1B
| $1.43M | ﹤0.01% |
81,600
+40,000
| +96% | +$753K |
|
2699
CALL
Terex
TEX
$7.74B
| $1.43M | ﹤0.01% |
26,700
+8,000
| +43% | +$404K |
|
2700
PUT
Enviri
NVRI
$566M
| $1.42M | ﹤0.01% |
+79,500
| New | +$1.18M |
|
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.