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 | |
|---|---|---|---|---|---|---|
326
CALL
Amgen
AMGN
$224B
| $63.5M | 0.03% |
227,400
+57,700
| +34% | +$16.3M |
|
327
PUT
United Parcel Service
UPS
$88.5B
| $63.5M | 0.03% |
628,600
+12,100
| +2% | +$1.19M |
|
328
CALL
GameStop
GME
$8.38B
| $63.4M | 0.03% |
2,598,100
-434,900
| -14% | -$11.7M |
|
329
CALL
Okta
OKTA
$26.1B
| $63.2M | 0.03% |
631,900
+55,000
| +10% | +$5.87M |
|
330
PUT
United Rentals
URI
$71.6B
| $63.1M | 0.03% |
83,700
-2,900
| -3% | -$1.94M |
|
331
PUT
Occidental Petroleum
OXY
$59.4B
| $61.6M | 0.03% |
1,465,300
+111,800
| +8% | +$4.67M |
|
332
CALL
ProShares Ultra Bloomberg Natural Gas
BOIL
$417M
| $61.3M | 0.03% |
1,145,650
+35,700
| +3% | +$4.14M |
|
333
CALL
Northrop Grumman
NOC
$81.8B
| $61M | 0.03% |
122,000
+43,600
| +56% | +$21.4M |
|
334
PUT
State Street Health Care Select Sector SPDR ETF
XLV
$43.9B
| $60.6M | 0.03% |
449,600
+100,700
| +29% | +$13.6M |
|
335
PUT
CVS Health
CVS
$120B
| $60M | 0.03% |
869,300
-53,900
| -6% | -$3.53M |
|
336
CALL
Agilent Technologies
A
$42.4B
| $59.9M | 0.03% |
507,700
+455,600
| +874% | +$50.5M |
|
337
CALL
Dollar General
DG
$26.8B
| $59.5M | 0.03% |
520,000
-50,700
| -9% | -$5.03M |
|
338
PUT
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.7B
| $59.4M | 0.03% |
546,800
-146,400
| -21% | -$15M |
|
339
CALL
Rocket Lab Corp
RKLB
$49B
| $59.1M | 0.03% |
1,652,100
+259,800
| +19% | +$6.36M |
|
340
CALL
Fair Isaac
FICO
$22.1B
| $58.9M | 0.03% |
32,200
+21,000
| +188% | +$39.4M |
|
341
CALL
Take-Two Interactive
TTWO
$46.7B
| $58.8M | 0.03% |
242,100
-38,700
| -14% | -$8.72M |
|
|
342
PUT
Dollar General
DG
$26.8B
| $58.7M | 0.03% |
513,200
+1,700
| +0.3% | +$169K |
|
343
PUT
Regeneron Pharmaceuticals
REGN
$83B
| $58.6M | 0.03% |
111,700
+41,500
| +59% | +$23.2M |
|
344
Alphabet (Google) Class C
GOOG
$4.26T
| $58.6M | 0.03% |
330,065
+95,642
| +41% | +$15.8M |
|
345
Costco
COST
$417B
| $58.4M | 0.03% |
+58,972
| New | +$58.6M |
|
346
PUT
Enphase Energy
ENPH
$5.54B
| $58.2M | 0.03% |
1,467,100
+790,800
| +117% | +$36.5M |
|
347
CALL
AT&T
T
$167B
| $58.1M | 0.03% |
2,009,000
-30,900
| -2% | -$852K |
|
348
CALL
McKesson
MCK
$104B
| $58.1M | 0.03% |
79,300
+1,000
| +1% | +$706K |
|
349
PUT
Wynn Resorts
WYNN
$10.7B
| $57.9M | 0.03% |
617,900
+270,100
| +78% | +$22.9M |
|
350
CALL
Marathon Digital Holdings
MARA
$3.76B
| $57.4M | 0.03% |
3,658,300
-87,200
| -2% | -$1.25M |
|
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.