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 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.39% |
| 2 | Technology | 0.33% |
| 3 | Communication Services | 0.22% |
| 4 | Industrials | 0.16% |
| 5 | Financials | 0.14% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
351
Oracle
ORCL
$418B
| $76.3M | 0.03% |
271,451
+92,040
| +51% | +$23.4M |
|
352
PUT
Delta Air Lines
DAL
$59.2B
| $75.6M | 0.03% |
1,332,100
-29,700
| -2% | -$1.69M |
|
353
PUT
Cigna
CI
$72.5B
| $75.3M | 0.03% |
261,100
+88,000
| +51% | +$26M |
|
354
PUT
Antero Resources
AR
$11.5B
| $74.8M | 0.03% |
2,230,300
+1,581,900
| +244% | +$52.7M |
|
355
CALL
Merck
MRK
$322B
| $74.6M | 0.03% |
889,300
+11,200
| +1% | +$922K |
|
356
PUT
Elevance Health
ELV
$85.3B
| $74.4M | 0.03% |
230,400
+128,500
| +126% | +$40M |
|
357
PUT
Carnival Corporation Ltd
CCL
$38.4B
| $74.4M | 0.03% |
2,574,500
-144,900
| -5% | -$4.38M |
|
358
PUT
CVS Health
CVS
$120B
| $74.3M | 0.03% |
985,300
+116,000
| +13% | +$7.95M |
|
359
CALL
ConocoPhillips
COP
$150B
| $72.9M | 0.03% |
770,400
+14,300
| +2% | +$1.35M |
|
360
PUT
Wayfair
W
$14.2B
| $72.6M | 0.03% |
813,200
+135,000
| +20% | +$9.89M |
|
361
CALL
Blackstone
BX
$116B
| $72.4M | 0.03% |
424,000
+85,600
| +25% | +$14.7M |
|
362
CALL
McKesson
MCK
$105B
| $72.4M | 0.03% |
93,700
+14,400
| +18% | +$10.1M |
|
363
CALL
Fair Isaac
FICO
$22.2B
| $72M | 0.03% |
48,100
+15,900
| +49% | +$23.9M |
|
364
CALL
T-Mobile US
TMUS
$194B
| $71.7M | 0.03% |
299,700
-45,300
| -13% | -$11M |
|
365
CALL
Valero Energy
VLO
$92.7B
| $71.7M | 0.03% |
421,000
+82,400
| +24% | +$12.3M |
|
|
366
CALL
Elevance Health
ELV
$85.3B
| $70.9M | 0.03% |
219,400
+98,400
| +81% | +$30.6M |
|
367
CALL
Coca-Cola
KO
$371B
| $70.6M | 0.03% |
1,064,100
+64,300
| +6% | +$4.43M |
|
368
CALL
Interactive Brokers
IBKR
$40.7B
| $70.4M | 0.03% |
1,022,900
+89,800
| +10% | +$5.65M |
|
369
lululemon athletica
LULU
$14.2B
| $69.9M | 0.03% |
392,958
+347,643
| +767% | +$69.7M |
|
370
CALL
State Street Health Care Select Sector SPDR ETF
XLV
$44B
| $69.3M | 0.03% |
497,600
-193,700
| -28% | -$26.2M |
|
371
CALL
Charter Communications
CHTR
$18.4B
| $68.8M | 0.03% |
250,200
+111,700
| +81% | +$33.8M |
|
372
CALL
Thermo Fisher Scientific
TMO
$222B
| $67.6M | 0.02% |
139,300
+29,200
| +27% | +$13.6M |
|
373
CALL
Agnico Eagle Mines
AEM
$92.5B
| $67.5M | 0.02% |
400,700
+122,300
| +44% | +$16.8M |
|
374
PUT
Regeneron Pharmaceuticals
REGN
$83B
| $67.5M | 0.02% |
120,000
+8,300
| +7% | +$4.69M |
|
375
CALL
Okta
OKTA
$26.2B
| $67.3M | 0.02% |
733,900
+102,000
| +16% | +$9.52M |
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $23.7B of net new capital in Q3 2025, opening 783 new positions and adding to 1,843 existing holdings. Its largest new stake was Netflix: 666,120 shares worth $79.9M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.39% of assets, up from 0.25% a quarter earlier, followed by Technology and Communication Services.
On the sell side, the largest reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, an estimated $135M trimmed.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.