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 | |
|---|---|---|---|---|---|---|
2626
CALL
SGHC Ltd
SGHC
$6.59B
| $1.55M | ﹤0.01% |
129,600
+74,400
| +135% | +$894K |
|
2627
CALL
Ericsson
ERIC
$33B
| $1.54M | ﹤0.01% |
160,000
+51,300
| +47% | +$486K |
|
2628
PUT
Terex
TEX
$7.74B
| $1.54M | ﹤0.01% |
28,900
-4,600
| -14% | -$232K |
|
2629
PUT
Global E Online
GLBE
$6.86B
| $1.54M | ﹤0.01% |
39,200
+4,700
| +14% | +$174K |
|
2630
Modine Manufacturing
MOD
$10.5B
| $1.54M | ﹤0.01% |
+11,515
| New | +$1.72M |
|
|
LAC
2631
PUT
Lithium Americas
LAC
$1.18B
| $1.54M | ﹤0.01% |
352,400
-147,500
| -30% | -$851K |
|
2632
CALL
Global X MSCI Norway ETF
NORW
$87M
| $1.54M | ﹤0.01% |
16,800
-15,500
| -48% | -$455K |
|
2633
CALL
Principal Financial Group
PFG
$24.2B
| $1.53M | ﹤0.01% |
+17,400
| New | +$1.47M |
|
2634
CALL
Green Plains
GPRE
$1.09B
| $1.53M | ﹤0.01% |
156,500
+81,300
| +108% | +$818K |
|
2635
CALL
Bumble
BMBL
$367M
| $1.53M | ﹤0.01% |
428,800
+125,700
| +41% | +$557K |
|
2636
Build-A-Bear
BBW
$462M
| $1.53M | ﹤0.01% |
+24,938
| New | +$1.36M |
|
2637
PUT
Copa Holdings
CPA
$5.49B
| $1.52M | ﹤0.01% |
12,600
-19,300
| -61% | -$2.36M |
|
2638
PUT
Critical Metals Corp
CRML
$994M
| $1.52M | ﹤0.01% |
+218,900
| New | +$2.39M |
|
2639
CALL
Brighthouse Financial
BHF
$3.38B
| $1.52M | ﹤0.01% |
+23,400
| New | +$1.37M |
|
2640
New Oriental
EDU
$8.84B
| $1.52M | ﹤0.01% |
27,534
+9,318
| +51% | +$511K |
|
2641
PUT
Ashland
ASH
$3.42B
| $1.51M | ﹤0.01% |
+25,800
| New | +$1.36M |
|
2642
Clover Health Investments
CLOV
$2.33B
| $1.51M | ﹤0.01% |
642,964
-216,949
| -25% | -$593K |
|
2643
CALL
Grindr
GRND
$2.82B
| $1.5M | ﹤0.01% |
111,100
+42,200
| +61% | +$574K |
|
2644
PUT
Invesco CurrencyShares Japanese Yen Trust
FXY
$426M
| $1.5M | ﹤0.01% |
25,600
-21,500
| -46% | -$1.28M |
|
|
VOYG
2645
PUT
Voyager Technologies
VOYG
$2.6B
| $1.5M | ﹤0.01% |
+57,400
| New | +$1.56M |
|
2646
PUT
Genuine Parts
GPC
$18.6B
| $1.5M | ﹤0.01% |
+12,200
| New | +$1.58M |
|
|
GTM
2647
CALL
ZoomInfo Technologies
GTM
$1.19B
| $1.49M | ﹤0.01% |
146,800
+5,400
| +4% | +$55.6K |
|
2648
PUT
BioMarin Pharmaceuticals
BMRN
$13.5B
| $1.49M | ﹤0.01% |
25,100
+5,200
| +26% | +$283K |
|
2649
Direxion Daily Aerospace & Defense Bull 3X ETF
DFEN
$436M
| $1.49M | ﹤0.01% |
23,332
-1,555
| -6% | -$102K |
|
2650
PUT
Aurora
AUR
$13.6B
| $1.49M | ﹤0.01% |
387,400
+46,800
| +14% | +$214K |
|
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.