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 | |
|---|---|---|---|---|---|---|
|
ETH
1776
PUT
Grayscale Ethereum Staking Mini ETF Shares
ETH
$1.71B
| $4.71M | ﹤0.01% |
+167,900
| New | +$5.47M |
|
1777
NextNav
NN
$2.11B
| $4.71M | ﹤0.01% |
282,891
+170,608
| +152% | +$2.42M |
|
1778
The Mosaic Company
MOS
$7.46B
| $4.7M | ﹤0.01% |
195,207
+160,449
| +462% | +$4.32M |
|
|
CHYM
1779
CALL
Chime Financial
CHYM
$11.7B
| $4.67M | ﹤0.01% |
+185,600
| New | +$3.94M |
|
1780
CALL
HF Sinclair
DINO
$15.2B
| $4.66M | ﹤0.01% |
101,200
+27,300
| +37% | +$1.41M |
|
1781
PUT
Comstock Resources
CRK
$4.22B
| $4.66M | ﹤0.01% |
201,100
+6,400
| +3% | +$141K |
|
|
P
1782
Everpure Inc
P
$32.6B
| $4.65M | ﹤0.01% |
+69,437
| New | +$5.8M |
|
1783
Atlassian
TEAM
$38.5B
| $4.65M | ﹤0.01% |
28,662
-11,027
| -28% | -$1.73M |
|
1784
CALL
Calumet Specialty Products
CLMT
$4B
| $4.64M | ﹤0.01% |
233,700
+37,600
| +19% | +$723K |
|
1785
PUT
Gartner
IT
$12.2B
| $4.64M | ﹤0.01% |
18,400
+5,800
| +46% | +$1.4M |
|
1786
CALL
Invesco CurrencyShares Euro Currency Trust
FXE
$341M
| $4.64M | ﹤0.01% |
42,800
+14,600
| +52% | +$1.57M |
|
1787
CALL
Bank OZK
OZK
$5.63B
| $4.63M | ﹤0.01% |
100,700
+42,200
| +72% | +$1.97M |
|
1788
PUT
Sibanye-Stillwater
SBSW
$7.55B
| $4.63M | ﹤0.01% |
325,100
+160,100
| +97% | +$1.94M |
|
1789
PUT
Incyte
INCY
$24.6B
| $4.62M | ﹤0.01% |
46,800
+25,200
| +117% | +$2.44M |
|
1790
PUT
Clear Secure
YOU
$5.27B
| $4.61M | ﹤0.01% |
131,500
+36,500
| +38% | +$1.24M |
|
1791
PUT
Annaly Capital Management
NLY
$17.3B
| $4.61M | ﹤0.01% |
206,100
-45,100
| -18% | -$982K |
|
1792
Arista Networks
ANET
$242B
| $4.6M | ﹤0.01% |
+35,131
| New | +$4.84M |
|
1793
PUT
Uranium Energy
UEC
$5.63B
| $4.6M | ﹤0.01% |
393,500
-111,300
| -22% | -$1.46M |
|
|
CMA
1794
PUT
DELISTED
Comerica
CMA
| $4.57M | ﹤0.01% |
52,600
-47,200
| -47% | -$3.8M |
|
|
USAR
1795
PUT
USA Rare Earth Inc
USAR
$4.66B
| $4.57M | ﹤0.01% |
+383,900
| New | +$7.31M |
|
1796
Vanguard Morningstar Total Stock Market ETF
VTI
$691B
| $4.56M | ﹤0.01% |
+13,599
| New | +$4.52M |
|
1797
Nice
NICE
$6.01B
| $4.55M | ﹤0.01% |
40,251
-6,040
| -13% | -$730K |
|
1798
Rockwell Automation
ROK
$48.3B
| $4.54M | ﹤0.01% |
+11,673
| New | +$4.39M |
|
|
EXAS
1799
PUT
DELISTED
Exact Sciences
EXAS
| $4.54M | ﹤0.01% |
44,700
-31,600
| -41% | -$2.54M |
|
1800
CALL
Woodward
WWD
$21B
| $4.53M | ﹤0.01% |
15,000
-1,400
| -9% | -$385K |
|
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.