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 | |
|---|---|---|---|---|---|---|
1401
PUT
Factset
FDS
$10.1B
| $7.84M | ﹤0.01% |
27,000
+5,600
| +26% | +$1.57M |
|
1402
CALL
Keysight
KEYS
$57.3B
| $7.82M | ﹤0.01% |
38,500
+4,800
| +14% | +$891K |
|
1403
CALL
Alaska Air
ALK
$5.27B
| $7.81M | ﹤0.01% |
155,200
+100
| +0.1% | +$4.62K |
|
1404
CALL
Equinox Gold
EQX
$13.5B
| $7.81M | ﹤0.01% |
556,000
+201,400
| +57% | +$2.54M |
|
1405
PUT
Shift4
FOUR
$3.41B
| $7.76M | ﹤0.01% |
123,300
+90,500
| +276% | +$6.39M |
|
1406
Hims & Hers Health
HIMS
$7.35B
| $7.76M | ﹤0.01% |
238,895
+65,811
| +38% | +$2.82M |
|
1407
PUT
Grab
GRAB
$15B
| $7.76M | ﹤0.01% |
1,554,200
+194,000
| +14% | +$1.07M |
|
1408
CALL
Schwab US Broad Market ETF
SCHB
$44.8B
| $7.75M | ﹤0.01% |
274,400
-18,400
| -6% | -$479K |
|
1409
CALL
Sibanye-Stillwater
SBSW
$7.55B
| $7.74M | ﹤0.01% |
543,400
+180,900
| +50% | +$2.19M |
|
1410
PUT
Sunoco
SUN
$13.5B
| $7.73M | ﹤0.01% |
147,500
+21,000
| +17% | +$1.11M |
|
1411
PUT
PennyMac Financial
PFSI
$3.94B
| $7.73M | ﹤0.01% |
58,600
+1,100
| +2% | +$140K |
|
1412
Wheaton Precious Metals
WPM
$60.6B
| $7.72M | ﹤0.01% |
65,664
+35,784
| +120% | +$3.83M |
|
1413
PUT
Edison International
EIX
$26.1B
| $7.7M | ﹤0.01% |
128,300
+3,500
| +3% | +$201K |
|
1414
CALL
The Mosaic Company
MOS
$7.46B
| $7.7M | ﹤0.01% |
319,500
-122,100
| -28% | -$3.29M |
|
1415
PUT
Alpha Metallurgical Resources
AMR
$1.95B
| $7.7M | ﹤0.01% |
38,500
+3,300
| +9% | +$570K |
|
1416
Fortinet
FTNT
$120B
| $7.69M | ﹤0.01% |
96,798
-47,593
| -33% | -$3.95M |
|
1417
Royal Caribbean
RCL
$82.4B
| $7.68M | ﹤0.01% |
+27,550
| New | +$7.78M |
|
1418
Delta Air Lines
DAL
$58.7B
| $7.67M | ﹤0.01% |
110,490
+8,278
| +8% | +$517K |
|
1419
Motorola Solutions
MSI
$76.5B
| $7.66M | ﹤0.01% |
+19,989
| New | +$8.03M |
|
1420
CALL
Cognizant
CTSH
$26.3B
| $7.66M | ﹤0.01% |
92,300
-900
| -1% | -$67.3K |
|
1421
CALL
Darling Ingredients
DAR
$9.99B
| $7.66M | ﹤0.01% |
212,800
+19,300
| +10% | +$653K |
|
1422
CALL
Hershey
HSY
$36.7B
| $7.64M | ﹤0.01% |
42,000
-38,400
| -48% | -$7.02M |
|
1423
CALL
Cintas
CTAS
$81.1B
| $7.64M | ﹤0.01% |
40,600
-53,800
| -57% | -$10.1M |
|
1424
PUT
Bilibili
BILI
$7.95B
| $7.64M | ﹤0.01% |
310,500
-36,300
| -10% | -$977K |
|
|
USAR
1425
CALL
USA Rare Earth Inc
USAR
$4.66B
| $7.61M | ﹤0.01% |
+639,600
| New | +$12.2M |
|
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.