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 | |
|---|---|---|---|---|---|---|
3301
PUT
Indivior Pharmaceuticals
INDV
$4.58B
| $653K | ﹤0.01% |
+18,200
| New | +$556K |
|
3302
PUT
PubMatic
PUBM
$810M
| $653K | ﹤0.01% |
73,600
+24,300
| +49% | +$212K |
|
3303
Enterprise Products Partners
EPD
$81.7B
| $653K | ﹤0.01% |
20,357
-18,896
| -48% | -$597K |
|
3304
Invesco S&P SmallCap Information Technology ETF
PSCT
$517M
| $651K | ﹤0.01% |
11,501
+100
| +0.9% | +$5.69K |
|
3305
Lightpath Technologies
LPTH
$820M
| $651K | ﹤0.01% |
+60,263
| New | +$488K |
|
|
MDLN
3306
Medline Inc
MDLN
$30.9B
| $651K | ﹤0.01% |
+15,491
| New | +$654K |
|
|
APPX
3307
Tradr 2X Long APP Daily ETF
APPX
$80.3M
| $648K | ﹤0.01% |
+6,096
| New | +$643K |
|
3308
PUT
Warner Music
WMG
$13.8B
| $647K | ﹤0.01% |
+21,100
| New | +$645K |
|
3309
PUT
Flex
FLEX
$44.8B
| $646K | ﹤0.01% |
10,700
-24,900
| -70% | -$1.54M |
|
3310
ProShares Ultra Utilities
UPW
$16.4M
| $646K | ﹤0.01% |
+29,762
| New | +$695K |
|
3311
FT Vest US Equity Deep Buffer ETF June
DJUN
$353M
| $645K | ﹤0.01% |
+13,629
| New | +$638K |
|
3312
PUT
Wolfspeed
WOLF
$1.71B
| $644K | ﹤0.01% |
+37,000
| New | +$849K |
|
|
CRON
3313
PUT
Cronos Group
CRON
$1.14B
| $644K | ﹤0.01% |
244,800
-32,200
| -12% | -$83.3K |
|
3314
PUT
Oxford Industries
OXM
$552M
| $643K | ﹤0.01% |
+18,800
| New | +$699K |
|
3315
Appian
APPN
$2.48B
| $642K | ﹤0.01% |
+18,131
| New | +$646K |
|
3316
CALL
Lazard
LAZ
$4.31B
| $641K | ﹤0.01% |
13,200
-6,700
| -34% | -$334K |
|
|
SLVR
3317
Sprott Silver Miners & Physical Silver ETF
SLVR
$739M
| $640K | ﹤0.01% |
+11,475
| New | +$547K |
|
3318
CALL
Invesco DB US Dollar Index Bearish Fund
UDN
$109M
| $640K | ﹤0.01% |
35,100
+20,300
| +137% | +$377K |
|
3319
PUT
QuidelOrtho
QDEL
$838M
| $640K | ﹤0.01% |
22,400
-3,900
| -15% | -$106K |
|
3320
PUT
Triumph Financial Inc
TFIN
$1.82B
| $639K | ﹤0.01% |
+10,200
| New | +$571K |
|
3321
PUT
AllianceBernstein
AB
$3.47B
| $639K | ﹤0.01% |
+16,600
| New | +$658K |
|
|
SEE
3322
CALL
DELISTED
Sealed Air
SEE
| $638K | ﹤0.01% |
15,400
-31,100
| -67% | -$1.2M |
|
3323
Upwork
UPWK
$1.19B
| $637K | ﹤0.01% |
+32,161
| New | +$590K |
|
3324
Vital Farms
VITL
$525M
| $635K | ﹤0.01% |
19,878
-20,735
| -51% | -$730K |
|
3325
CALL
Blue Bird Corp
BLBD
$2.18B
| $635K | ﹤0.01% |
13,500
-4,900
| -27% | -$256K |
|
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.