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
|
+$106M |
| 2 |
Advanced Micro Devices
AMD
|
+$81.1M |
| 3 |
Amazon
AMZN
|
+$73M |
| 4 |
TSMC
TSM
|
+$68.5M |
| 5 |
iShares Silver Trust
SLV
|
+$64.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$214M |
| 2 |
iShares Core S&P 500 ETF
IVV
|
+$209M |
| 3 |
Invesco NASDAQ 100 ETF
QQQM
|
+$209M |
| 4 |
Vanguard S&P 500 ETF
VOO
|
+$150M |
| 5 |
Meta Platforms (Facebook)
META
|
+$102M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.28% |
| 2 | Consumer Discretionary | 0.23% |
| 3 | Healthcare | 0.11% |
| 4 | Communication Services | 0.09% |
| 5 | Financials | 0.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1326
CALL
KeyCorp
KEY
$24.1B
| $4.23M | ﹤0.01% |
264,700
-5,900
| -2% | -$100K |
|
1327
PUT
Amkor Technology
AMKR
$11.3B
| $4.23M | ﹤0.01% |
234,100
+136,700
| +140% | +$3.09M |
|
1328
CALL
Jefferies Financial Group
JEF
$12.8B
| $4.23M | ﹤0.01% |
78,900
+7,600
| +11% | +$516K |
|
1329
CALL
Old Dominion Freight Line
ODFL
$45.6B
| $4.22M | ﹤0.01% |
25,500
-2,300
| -8% | -$418K |
|
1330
Iris Energy
IREN
$11.2B
| $4.22M | ﹤0.01% |
692,419
+585,168
| +546% | +$5.7M |
|
1331
CALL
Public Service Enterprise Group
PEG
$38.8B
| $4.16M | ﹤0.01% |
50,600
+17,200
| +51% | +$1.44M |
|
1332
PUT
Archer Aviation
ACHR
$3.53B
| $4.16M | ﹤0.01% |
585,500
+92,200
| +19% | +$818K |
|
1333
CALL
Vital Farms
VITL
$592M
| $4.16M | ﹤0.01% |
136,600
+111,200
| +438% | +$4M |
|
1334
PUT
Synchrony
SYF
$24.7B
| $4.13M | ﹤0.01% |
78,000
-14,700
| -16% | -$909K |
|
1335
PUT
Crown Castle
CCI
$33.4B
| $4.13M | ﹤0.01% |
39,600
-9,300
| -19% | -$868K |
|
1336
PUT
Elastic
ESTC
$6.85B
| $4.13M | ﹤0.01% |
46,300
-22,400
| -33% | -$2.32M |
|
1337
Cameco
CCJ
$37.4B
| $4.11M | ﹤0.01% |
99,898
+81,365
| +439% | +$3.83M |
|
1338
Riot Platforms
RIOT
$7.4B
| $4.09M | ﹤0.01% |
575,025
+177,706
| +45% | +$1.84M |
|
1339
PUT
Aptiv
APTV
$12.5B
| $4.09M | ﹤0.01% |
68,700
-58,900
| -46% | -$3.73M |
|
1340
Arista Networks
ANET
$205B
| $4.09M | ﹤0.01% |
52,742
+10,055
| +24% | +$1.02M |
|
|
ECHO
1341
CALL
EchoStar
ECHO
$24.6B
| $4.08M | ﹤0.01% |
159,500
-55,700
| -26% | -$1.51M |
|
1342
PUT
Transmedics
TMDX
$2.7B
| $4.08M | ﹤0.01% |
60,600
-19,800
| -25% | -$1.36M |
|
1343
PUT
Zeta Global
ZETA
$5.69B
| $4.07M | ﹤0.01% |
300,400
+24,900
| +9% | +$445K |
|
1344
Middleby
MIDD
$6.07B
| $4.07M | ﹤0.01% |
+26,770
| New | +$4.2M |
|
1345
First Solar
FSLR
$21.8B
| $4.07M | ﹤0.01% |
32,169
-32,282
| -50% | -$5.04M |
|
1346
PUT
Check Point Software Technologies
CHKP
$14.3B
| $4.06M | ﹤0.01% |
17,800
+5,900
| +50% | +$1.25M |
|
1347
CALL
Intuitive Machines
LUNR
$1.9B
| $4.05M | ﹤0.01% |
543,900
-275,500
| -34% | -$4.33M |
|
1348
Humana
HUM
$43.6B
| $4.04M | ﹤0.01% |
+15,278
| New | +$4.13M |
|
1349
PUT
Everest Group
EG
$15.7B
| $4.03M | ﹤0.01% |
11,100
-7,300
| -40% | -$2.58M |
|
1350
PUT
Alaska Air
ALK
$5.22B
| $4.03M | ﹤0.01% |
81,800
+8,100
| +11% | +$532K |
|
Similar funds
IMC Chicago's Q1 2025 Portfolio in Review
As of Q1 2025, IMC Chicago held 3,586 positions worth $177B, down 18% from $215B the previous quarter. Its ten largest holdings account for 46% of the portfolio.
IMC Chicago withdrew a net $21.1B in Q1 2025, closing 516 positions and reducing 1,388 holdings. Its most notable exit was iShares Core S&P 500 ETF, an estimated $209M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.28% of assets, down from 0.32% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, IMC Chicago opened a new position in Amazon worth $64M.
- IMC Chicago's largest Q1 2025 buy was Amazon: 336,493 shares worth $64M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q1 2025, an estimated $106M increase.
- IMC Chicago's biggest Q1 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $214M.
- IMC Chicago fully exited iShares Core S&P 500 ETF in Q1 2025, selling an estimated $209M.
- IMC Chicago's ten largest holdings make up 46% of its $177B portfolio in Q1 2025.
- IMC Chicago opened 482 new positions and closed 516 in Q1 2025.
- IMC Chicago's portfolio value fell 18% quarter-over-quarter to $177B.
Based on IMC Chicago's 13F filing for Q1 2025, filed 14 Apr 2025.