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 | |
|---|---|---|---|---|---|---|
176
CALL
Walt Disney
DIS
$181B
| $187M | 0.07% |
1,647,400
-63,700
| -4% | -$7.02M |
|
177
CALL
American Express
AXP
$230B
| $186M | 0.07% |
503,400
+21,700
| +5% | +$7.77M |
|
178
PUT
Iris Energy
IREN
$14.7B
| $185M | 0.07% |
4,902,500
+1,447,100
| +42% | +$74.7M |
|
|
179
Broadcom
AVGO
$2.04T
| $184M | 0.07% |
530,257
+458,608
| +640% | +$164M |
|
180
CALL
Chipotle Mexican Grill
CMG
$41.5B
| $183M | 0.07% |
4,957,600
+1,179,200
| +31% | +$42.7M |
|
|
OKLO
181
CALL
Oklo
OKLO
$8.42B
| $183M | 0.07% |
2,553,800
+658,800
| +35% | +$73.5M |
|
182
PUT
Dell
DELL
$293B
| $183M | 0.07% |
1,454,300
+210,400
| +17% | +$29.6M |
|
183
PUT
Synopsys
SNPS
$79.7B
| $181M | 0.07% |
384,600
-66,400
| -15% | -$29.5M |
|
184
CALL
Regeneron Pharmaceuticals
REGN
$80.8B
| $177M | 0.06% |
229,900
+25,800
| +13% | +$17.5M |
|
185
CALL
Arista Networks
ANET
$238B
| $177M | 0.06% |
+1,353,900
| New | +$186M |
|
|
NBIS
186
CALL
Nebius Group N.V.
NBIS
$47.7B
| $177M | 0.06% |
+2,117,700
| New | +$219M |
|
187
PUT
Arm
ARM
$302B
| $174M | 0.06% |
1,595,300
+48,700
| +3% | +$7.08M |
|
188
PUT
State Street Technology Select Sector SPDR ETF
XLK
$124B
| $173M | 0.06% |
1,198,900
+390,700
| +48% | +$56.4M |
|
189
CALL
Newmont
NEM
$119B
| $172M | 0.06% |
1,726,900
+97,400
| +6% | +$8.8M |
|
190
PUT
PepsiCo
PEP
$190B
| $168M | 0.06% |
1,171,800
+119,200
| +11% | +$17.5M |
|
191
PUT
PayPal
PYPL
$50.5B
| $168M | 0.06% |
2,879,700
-1,499,400
| -34% | -$97.4M |
|
192
CALL
Bank of America
BAC
$442B
| $168M | 0.06% |
3,050,900
-675,800
| -18% | -$35.7M |
|
193
PUT
Burlington
BURL
$23.2B
| $168M | 0.06% |
580,300
-282,200
| -33% | -$76.6M |
|
194
PUT
AST SpaceMobile
ASTS
$21.5B
| $167M | 0.06% |
2,304,300
+563,200
| +32% | +$40.2M |
|
195
PUT
KLA
KLAC
$259B
| $164M | 0.06% |
1,349,000
+174,000
| +15% | +$20.4M |
|
196
CALL
DoorDash
DASH
$93.7B
| $164M | 0.06% |
723,700
+136,200
| +23% | +$31.9M |
|
197
CALL
Mastercard
MA
$493B
| $164M | 0.06% |
287,100
-152,600
| -35% | -$85.3M |
|
198
CALL
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$221M
| $162M | 0.06% |
3,378,100
-6,299,100
| -65% | -$147M |
|
199
CALL
Johnson & Johnson
JNJ
$625B
| $162M | 0.06% |
781,700
+46,400
| +6% | +$9.18M |
|
|
CRCL
200
PUT
Circle Internet Group
CRCL
$16.9B
| $162M | 0.06% |
+2,038,900
| New | +$211M |
|
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.