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
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
951
PUT
Edwards Lifesciences
EW
$51.7B
| $16.1M | 0.01% |
189,400
+35,300
| +23% | +$2.9M |
|
952
PUT
Agilent Technologies
A
$41.2B
| $16.1M | 0.01% |
118,600
+52,300
| +79% | +$7.52M |
|
953
PUT
iShares MSCI Australia ETF
EWA
$1.48B
| $16.1M | 0.01% |
366,200
-530,800
| -59% | -$14M |
|
|
954
CALL
Agilent Technologies
A
$41.2B
| $16M | 0.01% |
117,800
+54,300
| +86% | +$7.8M |
|
955
UiPath
PATH
$7.8B
| $16M | 0.01% |
975,190
+513,113
| +111% | +$7.99M |
|
956
CALL
Cencora
COR
$61.2B
| $16M | 0.01% |
47,300
+4,800
| +11% | +$1.64M |
|
957
PUT
HubSpot
HUBS
$10.5B
| $16M | 0.01% |
39,800
-11,600
| -23% | -$4.81M |
|
958
CALL
American Eagle Outfitters
AEO
$3.01B
| $16M | 0.01% |
605,100
-137,800
| -19% | -$2.72M |
|
959
CALL
MGM Resorts International
MGM
$11.2B
| $15.8M | 0.01% |
434,200
+88,500
| +26% | +$3M |
|
960
PUT
Prologis
PLD
$133B
| $15.8M | 0.01% |
123,800
-200
| -0.2% | -$24.9K |
|
961
PUT
Marathon Petroleum
MPC
$83.7B
| $15.7M | 0.01% |
96,600
-17,400
| -15% | -$3.25M |
|
962
CALL
ProShares UltraPro Short S&P 500
SPXU
$384M
| $15.7M | 0.01% |
+315,600
| New | +$16.4M |
|
963
PUT
Ford
F
$55.7B
| $15.6M | 0.01% |
1,192,300
+85,600
| +8% | +$1.1M |
|
964
PUT
Shell
SHEL
$245B
| $15.6M | 0.01% |
212,800
+15,200
| +8% | +$1.12M |
|
965
PUT
Generac Holdings
GNRC
$12.5B
| $15.5M | 0.01% |
113,800
-18,900
| -14% | -$3.05M |
|
966
PUT
Tower Semiconductor
TSEM
$28.5B
| $15.5M | 0.01% |
131,800
+82,200
| +166% | +$7.92M |
|
967
CALL
Vanguard Morningstar Growth ETF
VUG
$230B
| $15.5M | 0.01% |
190,200
+600
| +0.3% | +$48.7K |
|
968
CALL
Sherwin-Williams
SHW
$89.8B
| $15.5M | 0.01% |
47,700
-11,500
| -19% | -$3.85M |
|
969
CALL
Sphere Entertainment
SPHR
$5.73B
| $15.4M | 0.01% |
162,100
+2,600
| +2% | +$198K |
|
970
Trade Desk
TTD
$6.49B
| $15.3M | 0.01% |
402,837
-448,158
| -53% | -$19.9M |
|
971
CALL
Stryker
SYK
$130B
| $15.3M | 0.01% |
43,500
-7,100
| -14% | -$2.59M |
|
972
CALL
Dutch Bros
BROS
$9.26B
| $15.1M | 0.01% |
246,700
+101,100
| +69% | +$5.74M |
|
973
ProShares UltraPro Short QQQ
SQQQ
$1.74B
| $15.1M | 0.01% |
+220,295
| New | +$15.6M |
|
974
PUT
Rubrik
RBRK
$18.5B
| $15.1M | 0.01% |
197,100
-6,400
| -3% | -$491K |
|
975
PUT
Trip.com Group
TCOM
$29.1B
| $15M | 0.01% |
207,900
+84,700
| +69% | +$6.06M |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.