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 | |
|---|---|---|---|---|---|---|
3901
PUT
Coty
COTY
$2.48B
| $253K | ﹤0.01% |
82,300
-43,900
| -35% | -$160K |
|
3902
PUT
TORM
TRMD
$3.02B
| $253K | ﹤0.01% |
+12,900
| New | +$272K |
|
3903
CALL
Fossil Group
FOSL
$318M
| $252K | ﹤0.01% |
+67,100
| New | +$189K |
|
|
CMBT
3904
CALL
CMB.TECH NV
CMBT
$4.73B
| $252K | ﹤0.01% |
+26,100
| New | +$254K |
|
3905
MBIA
MBI
$260M
| $251K | ﹤0.01% |
35,113
-16,324
| -32% | -$118K |
|
3906
PUT
Strive Inc
ASST
$1.05B
| $251K | ﹤0.01% |
+16,980
| New | +$406K |
|
3907
PUT
Phreesia
PHR
$773M
| $250K | ﹤0.01% |
14,800
+3,400
| +30% | +$70.2K |
|
3908
PUT
Arvinas
ARVN
$572M
| $250K | ﹤0.01% |
21,100
-2,600
| -11% | -$28.4K |
|
|
KC
3909
CALL
Kingsoft Cloud Holdings
KC
$3.69B
| $250K | ﹤0.01% |
24,200
-49,600
| -67% | -$609K |
|
|
SLDE
3910
PUT
Slide Insurance Holdings
SLDE
$2.47B
| $249K | ﹤0.01% |
+12,800
| New | +$213K |
|
3911
PUT
Genworth Financial
GNW
$3.71B
| $249K | ﹤0.01% |
+27,600
| New | +$240K |
|
|
QCML
3912
GraniteShares 2x Long QCOM Daily ETF
QCML
$58.8M
| $249K | ﹤0.01% |
+11,686
| New | +$254K |
|
3913
PUT
GoodRx Holdings
GDRX
$1.26B
| $248K | ﹤0.01% |
91,600
+33,200
| +57% | +$109K |
|
3914
Sundial Growers
SNDL
$320M
| $248K | ﹤0.01% |
+149,217
| New | +$299K |
|
3915
CALL
Apple Hospitality REIT
APLE
$3.82B
| $248K | ﹤0.01% |
+20,900
| New | +$245K |
|
3916
Icahn Enterprises
IEP
$5.3B
| $248K | ﹤0.01% |
+32,800
| New | +$264K |
|
|
VZLA
3917
CALL
Vizsla Silver
VZLA
$1.31B
| $246K | ﹤0.01% |
+45,000
| New | +$211K |
|
|
SNBR
3918
DELISTED
Sleep Number
SNBR
| $246K | ﹤0.01% |
+29,059
| New | +$184K |
|
3919
PUT
TransAlta
TAC
$3.93B
| $245K | ﹤0.01% |
+19,400
| New | +$290K |
|
3920
PUT
ProShares Ultra Bitcoin ETF
BITU
$359M
| $245K | ﹤0.01% |
+11,100
| New | +$432K |
|
|
AIV
3921
PUT
Aimco
AIV
$383M
| $245K | ﹤0.01% |
+41,200
| New | +$247K |
|
3922
CALL
Bausch Health
BHC
$2.34B
| $244K | ﹤0.01% |
35,100
-37,900
| -52% | -$249K |
|
|
ADUR
3923
PUT
Aduro Clean Technologies
ADUR
$571M
| $243K | ﹤0.01% |
+23,500
| New | +$310K |
|
3924
CALL
Manchester United
MANU
$3.73B
| $242K | ﹤0.01% |
+15,200
| New | +$245K |
|
|
VZLA
3925
Vizsla Silver
VZLA
$1.31B
| $241K | ﹤0.01% |
+44,038
| New | +$207K |
|
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.