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 |
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$57.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.86% |
| 2 | Technology | 0.32% |
| 3 | Consumer Discretionary | 0.25% |
| 4 | Healthcare | 0.13% |
| 5 | Communication Services | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
326
CALL
Amgen
AMGN
$224B
| $63.5M | 0.03% |
227,400
+57,700
| +34% | +$16.3M |
2018 Q4
26 quarters
|
|
327
PUT
United Parcel Service
UPS
$80.4B
| $63.5M | 0.03% |
628,600
+12,100
| +2% | +$1.19M |
2018 Q4
26 quarters
|
|
328
CALL
GameStop
GME
$13.3B
| $63.4M | 0.03% |
2,598,100
-434,900
| -14% | -$11.7M |
2020 Q3
19 quarters
|
|
329
CALL
Okta
OKTA
$40.3B
| $63.2M | 0.03% |
631,900
+55,000
| +10% | +$5.87M |
2019 Q2
24 quarters
|
|
330
PUT
United Rentals
URI
$66.5B
| $63.1M | 0.03% |
83,700
-2,900
| -3% | -$1.94M |
2022 Q4
10 quarters
|
|
331
PUT
Occidental Petroleum
OXY
$61.3B
| $61.6M | 0.03% |
1,465,300
+111,800
| +8% | +$4.67M |
2018 Q4
26 quarters
|
|
332
CALL
ProShares Ultra Bloomberg Natural Gas
BOIL
$329M
| $61.3M | 0.03% |
1,145,650
+35,700
| +3% | +$4.14M |
2022 Q2
12 quarters
|
|
333
CALL
Northrop Grumman
NOC
$68.7B
| $61M | 0.03% |
122,000
+43,600
| +56% | +$21.4M |
2022 Q1
13 quarters
|
|
334
PUT
State Street Health Care Select Sector SPDR ETF
XLV
$44.4B
| $60.6M | 0.03% |
449,600
+100,700
| +29% | +$13.6M |
2018 Q4
26 quarters
|
|
335
PUT
CVS Health
CVS
$111B
| $60M | 0.03% |
869,300
-53,900
| -6% | -$3.53M |
2018 Q4
26 quarters
|
|
336
CALL
Agilent Technologies
A
$48.2B
| $59.9M | 0.03% |
507,700
+455,600
| +874% | +$50.5M |
2023 Q2
8 quarters
|
|
337
CALL
Dollar General
DG
$27.8B
| $59.5M | 0.03% |
520,000
-50,700
| -9% | -$5.03M |
2018 Q4
26 quarters
|
|
338
PUT
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$22B
| $59.4M | 0.03% |
546,800
-146,400
| -21% | -$15M |
2018 Q4
26 quarters
|
|
339
CALL
Rocket Lab Corp
RKLB
$42.2B
| $59.1M | 0.03% |
1,652,100
+259,800
| +19% | +$6.36M |
2023 Q3
7 quarters
|
|
340
CALL
Fair Isaac
FICO
$15.3B
| $58.9M | 0.03% |
32,200
+21,000
| +188% | +$39.4M |
2023 Q4
6 quarters
|
|
341
CALL
Take-Two Interactive
TTWO
$39.1B
| $58.8M | 0.03% |
242,100
-38,700
| -14% | -$8.72M |
2020 Q2
20 quarters
|
|
|
342
PUT
Dollar General
DG
$27.8B
| $58.7M | 0.03% |
513,200
+1,700
| +0.3% | +$169K |
2018 Q4
26 quarters
|
|
343
PUT
Regeneron Pharmaceuticals
REGN
$78.9B
| $58.6M | 0.03% |
111,700
+41,500
| +59% | +$23.2M |
2022 Q3
11 quarters
|
|
344
Alphabet (Google) Class C
GOOG
$4.29T
| $58.6M | 0.03% |
330,065
+95,642
| +41% | +$15.8M |
2024 Q4
2 quarters
|
|
345
Costco
COST
$424B
| $58.4M | 0.03% |
+58,972
| New | +$58.6M |
2025 Q2
0 quarters
|
|
346
PUT
Enphase Energy
ENPH
$4.19B
| $58.2M | 0.03% |
1,467,100
+790,800
| +117% | +$36.5M |
2020 Q3
19 quarters
|
|
347
CALL
AT&T
T
$153B
| $58.1M | 0.03% |
2,009,000
-30,900
| -2% | -$852K |
2018 Q4
26 quarters
|
|
348
CALL
McKesson
MCK
$110B
| $58.1M | 0.03% |
79,300
+1,000
| +1% | +$706K |
2022 Q4
10 quarters
|
|
349
PUT
Wynn Resorts
WYNN
$7.66B
| $57.9M | 0.03% |
617,900
+270,100
| +78% | +$22.9M |
2018 Q4
26 quarters
|
|
350
CALL
Marathon Digital Holdings
MARA
$3.69B
| $57.4M | 0.03% |
3,658,300
-87,200
| -2% | -$1.25M |
2022 Q1
13 quarters
|
|
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's Q2 2025 filing shows 615 new, 1,602 increased, 1,040 reduced and 423 closed positions. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M. The largest sale was Invesco QQQ Trust, an estimated $153M.
By sector, the portfolio is most concentrated in Miscellaneous at 99% of assets, down from 99% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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.