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 | Miscellaneous | 98.48% |
| 2 | Technology | 0.56% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Communication Services | 0.16% |
| 5 | Financials | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
201
CALL
PepsiCo
PEP
$172B
| $161M | 0.06% |
1,120,800
+85,200
| +8% | +$12.5M |
2018 Q4
28 quarters
|
|
202
CALL
Western Digital
WDC
$149B
| $161M | 0.06% |
933,300
+163,500
| +21% | +$24.8M |
2018 Q4
28 quarters
|
|
203
CALL
AST SpaceMobile
ASTS
$15.3B
| $158M | 0.06% |
2,174,600
+550,400
| +34% | +$39.3M |
2024 Q2
6 quarters
|
|
204
CALL
Sandisk
SNDK
$229B
| $157M | 0.06% |
+662,700
| New | +$133M |
2025 Q4
0 quarters
|
|
|
205
PUT
Vanguard S&P 500 ETF
VOO
$1.06T
| $157M | 0.06% |
397,200
+77,600
| +24% | +$48.2M |
2022 Q3
13 quarters
|
|
|
206
PUT
Sandisk
SNDK
$229B
| $157M | 0.06% |
+661,200
| New | +$132M |
2025 Q4
0 quarters
|
|
207
CALL
ProShares UltraPro Short QQQ
SQQQ
$2.01B
| $156M | 0.06% |
+2,276,600
| New | +$161M |
2025 Q4
0 quarters
|
|
208
PUT
Walt Disney
DIS
$187B
| $156M | 0.06% |
1,368,900
+134,600
| +11% | +$14.8M |
2018 Q4
28 quarters
|
|
209
CALL
United Parcel Service
UPS
$80.5B
| $152M | 0.06% |
1,534,300
-75,000
| -5% | -$7.02M |
2018 Q4
28 quarters
|
|
210
CALL
Chevron
CVX
$416B
| $151M | 0.05% |
993,000
+72,500
| +8% | +$11M |
2018 Q4
28 quarters
|
|
|
211
CALL
JD.com
JD
$36.6B
| $151M | 0.05% |
5,271,500
+1,353,900
| +35% | +$42.3M |
2018 Q4
28 quarters
|
|
212
CALL
Target
TGT
$69.8B
| $148M | 0.05% |
1,513,500
-321,200
| -18% | -$29.6M |
2018 Q4
28 quarters
|
|
213
PUT
Bloom Energy
BE
$82.6B
| $147M | 0.05% |
1,686,800
-849,900
| -34% | -$89.3M |
2022 Q3
13 quarters
|
|
214
PUT
Arista Networks
ANET
$273B
| $146M | 0.05% |
+1,115,300
| New | +$154M |
2025 Q4
0 quarters
|
|
215
CALL
Albemarle
ALB
$12B
| $146M | 0.05% |
1,031,200
+15,300
| +2% | +$1.74M |
2023 Q2
10 quarters
|
|
216
PUT
McDonald's
MCD
$166B
| $146M | 0.05% |
477,100
-92,700
| -16% | -$28.4M |
2018 Q4
28 quarters
|
|
217
PUT
Morgan Stanley
MS
$298B
| $145M | 0.05% |
816,800
+2,100
| +0.3% | +$350K |
2018 Q4
28 quarters
|
|
218
CALL
State Street Technology Select Sector SPDR ETF
XLK
$130B
| $145M | 0.05% |
1,005,300
+246,100
| +32% | +$35.5M |
2018 Q4
28 quarters
|
|
219
CALL
Intuitive Surgical
ISRG
$150B
| $143M | 0.05% |
251,800
+10,400
| +4% | +$5.54M |
2018 Q4
28 quarters
|
|
220
PUT
Ulta Beauty
ULTA
$24.4B
| $142M | 0.05% |
234,800
+94,200
| +67% | +$51.8M |
2018 Q4
28 quarters
|
|
221
CALL
Procter & Gamble
PG
$351B
| $142M | 0.05% |
988,700
+450,300
| +84% | +$66.4M |
2018 Q4
28 quarters
|
|
222
PUT
Deere & Co
DE
$167B
| $140M | 0.05% |
300,600
-97,500
| -24% | -$45.8M |
2018 Q4
28 quarters
|
|
|
223
PUT
Chevron
CVX
$416B
| $140M | 0.05% |
917,500
+166,000
| +22% | +$25.3M |
2018 Q4
28 quarters
|
|
224
PUT
Wells Fargo
WFC
$253B
| $138M | 0.05% |
1,480,000
-392,500
| -21% | -$34.1M |
2018 Q4
28 quarters
|
|
225
CALL
GE Aerospace
GE
$320B
| $138M | 0.05% |
447,000
+9,300
| +2% | +$2.8M |
2022 Q2
14 quarters
|
|
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 Miscellaneous at 98% of assets, up from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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.