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 | |
|---|---|---|---|---|---|---|
576
PUT
AST SpaceMobile
ASTS
$17.4B
| $20.5M | 0.01% |
902,000
+241,300
| +37% | +$6.17M |
|
577
CALL
Cognizant
CTSH
$22.3B
| $20.5M | 0.01% |
268,100
+144,700
| +117% | +$11.8M |
|
578
CALL
Five Below
FIVE
$11.5B
| $20.5M | 0.01% |
273,700
+67,100
| +32% | +$5.9M |
|
579
PUT
Williams-Sonoma
WSM
$27.6B
| $20.4M | 0.01% |
128,900
-15,900
| -11% | -$3.07M |
|
580
CALL
Snap
SNAP
$7.6B
| $20.4M | 0.01% |
2,338,000
-1,780,300
| -43% | -$18.6M |
|
581
PUT
General Dynamics
GD
$105B
| $20.3M | 0.01% |
74,500
+6,200
| +9% | +$1.61M |
|
|
X
582
PUT
DELISTED
US Steel
X
| $20.2M | 0.01% |
478,900
+77,100
| +19% | +$2.92M |
|
583
CALL
US Bancorp Series B Preferred Stock
USB.PRH
$748M
| $20.2M | 0.01% |
478,900
+104,000
| +28% | +$2.35M |
|
584
PUT
SLB Ltd
SLB
$76.5B
| $20.1M | 0.01% |
480,100
-20,500
| -4% | -$840K |
|
585
CALL
American Tower
AMT
$77.7B
| $20M | 0.01% |
92,000
+38,600
| +72% | +$7.57M |
|
586
PUT
Deckers Outdoor
DECK
$13.3B
| $20M | 0.01% |
179,000
+94,900
| +113% | +$15.3M |
|
587
PUT
Fair Isaac
FICO
$29.7B
| $19.9M | 0.01% |
10,800
-7,100
| -40% | -$13.1M |
|
588
CALL
DexCom
DXCM
$28.3B
| $19.9M | 0.01% |
291,200
-122,900
| -30% | -$10M |
|
589
CALL
Marathon Petroleum
MPC
$91.2B
| $19.8M | 0.01% |
136,100
-54,700
| -29% | -$8.09M |
|
590
PUT
CAVA Group
CAVA
$7.52B
| $19.7M | 0.01% |
227,900
-16,600
| -7% | -$1.8M |
|
591
CALL
Astera Labs
ALAB
$48.4B
| $19.7M | 0.01% |
329,700
-19,100
| -5% | -$1.77M |
|
592
CALL
Li Auto
LI
$13.1B
| $19.5M | 0.01% |
775,300
-202,500
| -21% | -$5.21M |
|
593
CALL
ON Semiconductor
ON
$34.7B
| $19.5M | 0.01% |
479,800
+66,100
| +16% | +$3.33M |
|
594
PUT
Linde
LIN
$234B
| $19.5M | 0.01% |
41,900
-21,500
| -34% | -$9.68M |
|
595
CALL
Energy Transfer Partners
ET
$68.5B
| $19.4M | 0.01% |
1,045,600
-51,000
| -5% | -$994K |
|
596
CALL
Ferrari
RACE
$66.8B
| $19.4M | 0.01% |
45,400
+11,100
| +32% | +$4.99M |
|
597
CALL
CME Group
CME
$91.8B
| $19.4M | 0.01% |
73,000
+6,300
| +9% | +$1.55M |
|
598
PUT
Texas Pacific Land
TPL
$27.4B
| $19.3M | 0.01% |
+43,800
| New | +$19.5M |
|
599
CALL
Antero Resources
AR
$10.5B
| $19.2M | 0.01% |
475,900
+7,000
| +1% | +$268K |
|
600
CALL
Crown Castle
CCI
$32.4B
| $19.2M | 0.01% |
184,200
+89,200
| +94% | +$8.33M |
|
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.