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 | |
|---|---|---|---|---|---|---|
1576
PUT
Insulet
PODD
$9.91B
| $6.2M | ﹤0.01% |
21,800
-33,600
| -61% | -$10.5M |
|
1577
CALL
Valley National Bancorp
VLY
$8.1B
| $6.19M | ﹤0.01% |
529,900
+481,000
| +984% | +$5.34M |
|
1578
iShares Semiconductor ETF
SOXX
$44.8B
| $6.18M | ﹤0.01% |
20,511
-7,150
| -26% | -$2.11M |
|
1579
CALL
abrdn Physical Silver Shares ETF
SIVR
$4.56B
| $6.18M | ﹤0.01% |
91,300
+72,700
| +391% | +$3.82M |
|
1580
PUT
Mattel
MAT
$4.21B
| $6.16M | ﹤0.01% |
310,300
-16,000
| -5% | -$309K |
|
1581
CALL
Huntington Ingalls Industries
HII
$13B
| $6.16M | ﹤0.01% |
18,100
+5,100
| +39% | +$1.58M |
|
1582
CALL
Grab
GRAB
$15B
| $6.15M | ﹤0.01% |
1,232,900
-148,500
| -11% | -$821K |
|
1583
CALL
Harmony Gold Mining
HMY
$12.4B
| $6.15M | ﹤0.01% |
308,800
+34,400
| +13% | +$642K |
|
1584
PUT
Transmedics
TMDX
$3.07B
| $6.14M | ﹤0.01% |
50,500
-20,400
| -29% | -$2.56M |
|
1585
CALL
SiriusXM
SIRI
$9.7B
| $6.12M | ﹤0.01% |
306,300
+62,200
| +25% | +$1.34M |
|
1586
PUT
AerCap
AER
$23.5B
| $6.12M | ﹤0.01% |
42,600
+16,500
| +63% | +$2.19M |
|
1587
PUT
Bio-Techne
TECH
$11.2B
| $6.12M | ﹤0.01% |
+104,000
| New | +$6.32M |
|
|
Q
1588
PUT
Qnity Electronics Inc
Q
$28.1B
| $6.11M | ﹤0.01% |
+74,800
| New | +$6.35M |
|
1589
PUT
Sarepta Therapeutics
SRPT
$1.81B
| $6.11M | ﹤0.01% |
283,700
+208,700
| +278% | +$4.4M |
|
1590
CALL
Magnite
MGNI
$3.47B
| $6.1M | ﹤0.01% |
376,000
-40,800
| -10% | -$677K |
|
1591
PUT
Casey's General Stores
CASY
$31.6B
| $6.08M | ﹤0.01% |
11,000
-3,100
| -22% | -$1.71M |
|
1592
Albemarle
ALB
$15.5B
| $6.07M | ﹤0.01% |
42,929
+21,571
| +101% | +$2.45M |
|
1593
CALL
Transocean
RIG
$6.33B
| $6.06M | ﹤0.01% |
1,466,800
+208,800
| +17% | +$811K |
|
1594
CALL
Consolidated Edison
ED
$39.3B
| $6.05M | ﹤0.01% |
60,900
-5,700
| -9% | -$566K |
|
1595
PUT
Viking Holdings
VIK
$46.3B
| $6.04M | ﹤0.01% |
84,600
+47,100
| +126% | +$3.01M |
|
1596
CALL
State Street SPDR Portfolio Europe ETF
SPEU
$742M
| $6.03M | ﹤0.01% |
93,700
+5,700
| +6% | +$289K |
|
1597
CALL
Bath & Body Works
BBWI
$3.89B
| $6.01M | ﹤0.01% |
299,200
+133,000
| +80% | +$2.94M |
|
1598
CALL
BHP
BHP
$230B
| $5.99M | ﹤0.01% |
99,300
+59,000
| +146% | +$3.35M |
|
1599
PUT
Southern Copper
SCCO
$167B
| $5.98M | ﹤0.01% |
42,475
+21,827
| +106% | +$2.89M |
|
1600
PUT
Conagra Brands
CAG
$7.07B
| $5.98M | ﹤0.01% |
345,400
+15,600
| +5% | +$277K |
|
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.