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 Bitcoin Trust
IBIT
|
+$232M |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$168M |
| 3 |
Apple
AAPL
|
+$149M |
| 4 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$136M |
| 5 |
UnitedHealth
UNH
|
+$110M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$153M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$127M |
| 3 |
Advanced Micro Devices
AMD
|
+$97.1M |
| 4 |
TSMC
TSM
|
+$65.3M |
| 5 |
SPYM
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$57.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.32% |
| 2 | Consumer Discretionary | 0.25% |
| 3 | Healthcare | 0.13% |
| 4 | Communication Services | 0.1% |
| 5 | Financials | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
351
PUT
Cigna
CI
$72.1B
| $57.2M | 0.03% |
173,100
-33,000
| -16% | -$10.6M |
|
352
CALL
Carnival Corporation Ltd
CCL
$37.9B
| $56.8M | 0.03% |
2,019,000
+196,600
| +11% | +$4.21M |
|
353
CALL
Charter Communications
CHTR
$18.6B
| $56.6M | 0.03% |
138,500
+35,200
| +34% | +$13.5M |
|
354
CALL
General Dynamics
GD
$107B
| $56.3M | 0.03% |
193,000
+48,200
| +33% | +$13.3M |
|
|
NBIS
355
CALL
Nebius Group N.V.
NBIS
$48.5B
| $55.8M | 0.02% |
1,008,800
+491,600
| +95% | +$16.9M |
|
356
CALL
KLA
KLAC
$260B
| $55.7M | 0.02% |
622,000
-95,000
| -13% | -$7.15M |
|
357
PUT
GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF
COMB
$150M
| $54.9M | 0.02% |
1,041,800
-260,400
| -20% | -$5.46M |
|
358
CALL
Hilton Worldwide
HLT
$70.6B
| $54.7M | 0.02% |
205,200
+165,600
| +418% | +$39.4M |
|
359
CALL
Twilio
TWLO
$39.3B
| $54.6M | 0.02% |
439,100
-204,800
| -32% | -$21.8M |
|
360
PUT
Marathon Digital Holdings
MARA
$3.76B
| $54.5M | 0.02% |
3,474,200
+970,200
| +39% | +$13.9M |
|
361
PUT
Affirm
AFRM
$25.6B
| $54.4M | 0.02% |
786,100
+88,100
| +13% | +$4.57M |
|
362
PUT
RTX Corp
RTX
$302B
| $53.8M | 0.02% |
368,400
+140,600
| +62% | +$18.7M |
|
363
CALL
Moderna
MRNA
$23.8B
| $53.6M | 0.02% |
1,941,500
+127,800
| +7% | +$3.37M |
|
364
CALL
S&P Global
SPGI
$121B
| $53.3M | 0.02% |
101,000
+26,300
| +35% | +$13.1M |
|
365
CALL
Sysco
SYY
$40.4B
| $53.1M | 0.02% |
701,000
+469,200
| +202% | +$34.1M |
|
366
PUT
Interactive Brokers
IBKR
$40.6B
| $53M | 0.02% |
956,400
+376,800
| +65% | +$17.9M |
|
367
PUT
GameStop
GME
$8.38B
| $52.6M | 0.02% |
2,157,400
+439,500
| +26% | +$11.8M |
|
368
CALL
Pfizer
PFE
$151B
| $51.8M | 0.02% |
2,137,100
-95,900
| -4% | -$2.24M |
|
369
PUT
Amgen
AMGN
$224B
| $51.7M | 0.02% |
185,200
+2,500
| +1% | +$708K |
|
|
370
CALL
Interactive Brokers
IBKR
$40.6B
| $51.7M | 0.02% |
933,100
-90,900
| -9% | -$4.31M |
|
371
CALL
Synopsys
SNPS
$78.5B
| $51.6M | 0.02% |
100,600
+24,400
| +32% | +$11.4M |
|
372
PUT
Okta
OKTA
$26.1B
| $51.5M | 0.02% |
515,100
+137,800
| +37% | +$14.7M |
|
373
PUT
General Motors
GM
$78.7B
| $51.3M | 0.02% |
1,042,500
-586,100
| -36% | -$27.8M |
|
|
374
CALL
General Motors
GM
$78.7B
| $51.2M | 0.02% |
1,039,800
-405,800
| -28% | -$19.2M |
|
375
CALL
Rivian
RIVN
$23.6B
| $50.7M | 0.02% |
3,691,500
-718,600
| -16% | -$9.75M |
|
Similar funds
IMC Chicago's Q2 2025 Portfolio in Review
As of Q2 2025, IMC Chicago held 3,685 positions worth $225B, up 27% from $177B the previous quarter. Its ten largest holdings account for 42% of the portfolio.
IMC Chicago deployed $13.1B of net new capital in Q2 2025, opening 615 new positions and adding to 1,602 existing holdings. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
By sector, the portfolio is most concentrated in Technology at 0.32% of assets, up from 0.28% a quarter earlier, followed by Consumer Discretionary and Healthcare.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $153M trimmed.
- IMC Chicago's largest Q2 2025 buy was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
- IMC Chicago added most to Sprott Physical Gold in Q2 2025, an estimated $77.8M increase.
- IMC Chicago's biggest Q2 2025 reduction was Invesco QQQ Trust, cutting an estimated $153M.
- IMC Chicago fully exited Advanced Micro Devices in Q2 2025, selling an estimated $97.1M.
- IMC Chicago's ten largest holdings make up 42% of its $225B portfolio in Q2 2025.
- IMC Chicago opened 615 new positions and closed 423 in Q2 2025.
- IMC Chicago's portfolio value rose 27% quarter-over-quarter to $225B.
Based on IMC Chicago's 13F filing for Q2 2025, filed 22 Jul 2025.