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 | |
|---|---|---|---|---|---|---|
3551
CALL
Remitly
RELY
$5.14B
| $453K | ﹤0.01% |
32,800
+9,300
| +40% | +$135K |
|
3552
CALL
Lightwave Logic
LWLG
$1.25B
| $451K | ﹤0.01% |
139,300
+43,000
| +45% | +$191K |
|
3553
PUT
Butterfly Network
BFLY
$2.35B
| $451K | ﹤0.01% |
118,700
+6,200
| +6% | +$16.9K |
|
3554
Evolv Technologies
EVLV
$1.1B
| $451K | ﹤0.01% |
+62,945
| New | +$447K |
|
3555
PUT
ClearPoint Neuro
CLPT
$433M
| $449K | ﹤0.01% |
+32,800
| New | +$608K |
|
3556
James Hardie Industries
JHX
$17.5B
| $447K | ﹤0.01% |
+21,544
| New | +$432K |
|
3557
CALL
BRC Group Holdings
RILY
$289M
| $447K | ﹤0.01% |
95,700
+41,500
| +77% | +$205K |
|
3558
CALL
Rayonier Advanced Materials
RYAM
$610M
| $445K | ﹤0.01% |
75,500
+500
| +0.7% | +$3.25K |
|
3559
CALL
Village Farms International
VFF
$253M
| $443K | ﹤0.01% |
+121,300
| New | +$422K |
|
3560
CALL
Robert Half
RHI
$4.37B
| $443K | ﹤0.01% |
16,300
+1,500
| +10% | +$42.8K |
|
3561
CALL
Heritage Insurance Holdings
HRTG
$991M
| $442K | ﹤0.01% |
15,100
+2,700
| +22% | +$73K |
|
|
UNIT
3562
PUT
Uniti Group
UNIT
$2.32B
| $442K | ﹤0.01% |
+63,000
| New | +$399K |
|
3563
CALL
Steven Madden
SHOO
$3.55B
| $441K | ﹤0.01% |
10,600
-600
| -5% | -$23.1K |
|
|
MDLN
3564
CALL
Medline Inc
MDLN
$30.9B
| $441K | ﹤0.01% |
+10,500
| New | +$443K |
|
3565
Lionsgate Studios
LION
$3.86B
| $438K | ﹤0.01% |
+48,008
| New | +$342K |
|
|
FHDG
3566
FT Vest U.S. Equity Quarterly Dynamic Buffer ETF
FHDG
$70.4M
| $438K | ﹤0.01% |
+12,918
| New | +$432K |
|
3567
PUT
Power Integrations
POWI
$3.61B
| $437K | ﹤0.01% |
+12,300
| New | +$466K |
|
3568
PUT
Sabre
SABR
$835M
| $437K | ﹤0.01% |
321,000
-246,400
| -43% | -$424K |
|
3569
CALL
ASE Group
ASX
$82.2B
| $436K | ﹤0.01% |
+27,100
| New | +$385K |
|
3570
Kyndryl
KD
$3.05B
| $436K | ﹤0.01% |
16,398
-5,679
| -26% | -$154K |
|
|
AIRL
3571
CALL
DELISTED
Themes Airlines ETF
AIRL
| $435K | ﹤0.01% |
+25,900
| New | +$435K |
|
3572
CALL
Phreesia
PHR
$773M
| $435K | ﹤0.01% |
25,700
+13,600
| +112% | +$281K |
|
3573
FT Vest US Equity Moderate Buffer ETF September
GSEP
$345M
| $434K | ﹤0.01% |
+11,206
| New | +$430K |
|
|
GES
3574
PUT
DELISTED
Guess Inc
GES
| $434K | ﹤0.01% |
25,900
-8,300
| -24% | -$140K |
|
|
SFIX
3575
PUT
Stitch Fix
SFIX
$560M
| $434K | ﹤0.01% |
82,600
+29,800
| +56% | +$136K |
|
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.