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 | |
|---|---|---|---|---|---|---|
1251
CALL
Roivant Sciences
ROIV
$26B
| $9.62M | ﹤0.01% |
443,500
-1,900
| -0.4% | -$37.5K |
|
1252
PUT
Argan
AGX
$8.26B
| $9.62M | ﹤0.01% |
30,700
+4,600
| +18% | +$1.46M |
|
1253
Visa
V
$671B
| $9.61M | ﹤0.01% |
27,412
-67,667
| -71% | -$23.1M |
|
1254
CALL
SharkNinja
SN
$25.9B
| $9.61M | ﹤0.01% |
85,900
-84,400
| -50% | -$8.32M |
|
1255
PUT
Idexx Laboratories
IDXX
$47.2B
| $9.61M | ﹤0.01% |
14,200
-900
| -6% | -$613K |
|
1256
PUT
Li Auto
LI
$12.6B
| $9.61M | ﹤0.01% |
567,400
-426,600
| -43% | -$8.46M |
|
1257
PUT
American Electric Power
AEP
$66.9B
| $9.61M | ﹤0.01% |
83,300
-14,300
| -15% | -$1.69M |
|
1258
CALL
DigitalBridge
DBRG
$2.95B
| $9.58M | ﹤0.01% |
624,600
+295,300
| +90% | +$3.55M |
|
1259
CALL
Old Dominion Freight Line
ODFL
$44.2B
| $9.58M | ﹤0.01% |
61,100
+5,800
| +10% | +$832K |
|
1260
PUT
Coupang
CPNG
$29.2B
| $9.57M | ﹤0.01% |
405,600
+109,300
| +37% | +$3.11M |
|
1261
CALL
FMC
FMC
$1.29B
| $9.56M | ﹤0.01% |
689,600
+451,200
| +189% | +$8.6M |
|
1262
CALL
Madrigal Pharmaceuticals
MDGL
$11.9B
| $9.55M | ﹤0.01% |
+16,400
| New | +$8.38M |
|
1263
CALL
Nutanix
NTNX
$17.5B
| $9.55M | ﹤0.01% |
184,700
-28,500
| -13% | -$1.74M |
|
1264
CALL
Aflac
AFL
$61.5B
| $9.52M | ﹤0.01% |
86,300
-24,100
| -22% | -$2.65M |
|
1265
CALL
YPF Sociedad Anonima American Depositary Shares (Each representing ten (10) Class D shares of Capital Stock)
YPF
$19.9B
| $9.48M | ﹤0.01% |
262,200
+32,900
| +14% | +$1.09M |
|
1266
CALL
Boston Properties
BXP
$10.7B
| $9.46M | ﹤0.01% |
140,200
-16,200
| -10% | -$1.15M |
|
1267
CALL
ProShares Ether Strategy ETF
EETH
$53.9M
| $9.45M | ﹤0.01% |
268,900
-234,500
| -47% | -$11.7M |
|
1268
CALL
Arthur J. Gallagher & Co
AJG
$64.3B
| $9.45M | ﹤0.01% |
36,500
-8,000
| -18% | -$2.12M |
|
1269
CALL
SentinelOne
S
$7.66B
| $9.44M | ﹤0.01% |
629,200
+31,100
| +5% | +$509K |
|
1270
CALL
InterDigital
IDCC
$9.04B
| $9.42M | ﹤0.01% |
29,600
-1,400
| -5% | -$495K |
|
1271
CALL
Ferguson
FERG
$51.2B
| $9.42M | ﹤0.01% |
42,300
+21,700
| +105% | +$5.18M |
|
1272
Hecla Mining
HL
$11.7B
| $9.4M | ﹤0.01% |
489,785
+153,892
| +46% | +$2.35M |
|
1273
CALL
GoDaddy
GDDY
$11.6B
| $9.39M | ﹤0.01% |
75,700
+36,800
| +95% | +$4.76M |
|
1274
PUT
Toronto Dominion Bank
TD
$201B
| $9.36M | ﹤0.01% |
99,400
+22,000
| +28% | +$1.86M |
|
1275
PUT
HSBC
HSBC
$354B
| $9.32M | ﹤0.01% |
118,500
-12,000
| -9% | -$858K |
|
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.