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 | |
|---|---|---|---|---|---|---|
1326
CALL
Kohl's
KSS
$2.18B
| $8.78M | ﹤0.01% |
430,400
-148,700
| -26% | -$2.79M |
|
1327
PUT
abrdn Physical Palladium Shares ETF
PALL
$682M
| $8.78M | ﹤0.01% |
+302,000
| New | +$8.14M |
|
1328
CALL
Leidos
LDOS
$17.4B
| $8.77M | ﹤0.01% |
48,600
-2,100
| -4% | -$398K |
|
1329
PUT
Hasbro
HAS
$13.3B
| $8.77M | ﹤0.01% |
106,900
+11,600
| +12% | +$910K |
|
1330
CALL
Globalstar
GSAT
$10.9B
| $8.77M | ﹤0.01% |
+143,600
| New | +$7.93M |
|
1331
CALL
Factset
FDS
$10.1B
| $8.76M | ﹤0.01% |
30,200
-4,100
| -12% | -$1.15M |
|
1332
PUT
Sprouts Farmers Market
SFM
$7.97B
| $8.74M | ﹤0.01% |
109,700
+36,800
| +50% | +$3.3M |
|
1333
PUT
Rio Tinto
RIO
$166B
| $8.74M | ﹤0.01% |
109,200
-1,300
| -1% | -$93.6K |
|
1334
Honeywell
HON
$76.9B
| $8.73M | ﹤0.01% |
44,758
-3,441
| -7% | -$673K |
|
1335
PUT
Nordson
NDSN
$17.2B
| $8.73M | ﹤0.01% |
+36,300
| New | +$8.53M |
|
1336
PUT
Amplify Online Retail ETF
IBUY
$126M
| $8.72M | ﹤0.01% |
313,600
+130,800
| +72% | +$9.68M |
|
1337
CALL
Western Alliance Bancorporation
WAL
$8.78B
| $8.72M | ﹤0.01% |
103,700
-11,100
| -10% | -$901K |
|
1338
PUT
Sprott Uranium Miners ETF
URNM
$2B
| $8.7M | ﹤0.01% |
158,100
+85,300
| +117% | +$4.93M |
|
|
BTC
1339
CALL
Grayscale Bitcoin Mini Trust ETF
BTC
$3.38B
| $8.68M | ﹤0.01% |
+224,200
| New | +$9.94M |
|
1340
Ferrari
RACE
$71.6B
| $8.66M | ﹤0.01% |
+23,428
| New | +$9.37M |
|
1341
CALL
PennyMac Financial
PFSI
$3.9B
| $8.65M | ﹤0.01% |
65,600
+200
| +0.3% | +$25.5K |
|
1342
PUT
Pultegroup
PHM
$24.6B
| $8.64M | ﹤0.01% |
73,700
-10,200
| -12% | -$1.25M |
|
1343
CALL
GlobalFoundries
GFS
$28.3B
| $8.64M | ﹤0.01% |
247,300
+182,000
| +279% | +$6.47M |
|
1344
CALL
J.M. Smucker
SJM
$12.6B
| $8.63M | ﹤0.01% |
88,200
-22,400
| -20% | -$2.32M |
|
1345
CALL
Motorola Solutions
MSI
$76.5B
| $8.62M | ﹤0.01% |
22,500
+6,400
| +40% | +$2.57M |
|
1346
PUT
ProShares UltraShort S&P500
SDS
$369M
| $8.6M | ﹤0.01% |
+125,600
| New | +$8.87M |
|
1347
CALL
Ally Financial
ALLY
$13.4B
| $8.58M | ﹤0.01% |
189,500
-63,300
| -25% | -$2.61M |
|
1348
PUT
SentinelOne
S
$7.63B
| $8.55M | ﹤0.01% |
570,000
+296,200
| +108% | +$4.85M |
|
1349
PUT
Establishment Labs
ESTA
$2.21B
| $8.54M | ﹤0.01% |
+117,200
| New | +$7.08M |
|
1350
CALL
Root
ROOT
$824M
| $8.54M | ﹤0.01% |
118,200
+43,100
| +57% | +$3.43M |
|
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.