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 | |
|---|---|---|---|---|---|---|
2576
Teladoc Health
TDOC
$1.24B
| $1.65M | ﹤0.01% |
235,521
-369,285
| -61% | -$2.89M |
|
2577
CALL
Willdan Group
WLDN
$1.28B
| $1.65M | ﹤0.01% |
15,900
-3,300
| -17% | -$325K |
|
2578
CALL
Inspire Medical Systems
INSP
$1.71B
| $1.64M | ﹤0.01% |
17,800
+900
| +5% | +$86.1K |
|
|
PSIX
2579
PUT
Power Solutions International
PSIX
$972M
| $1.64M | ﹤0.01% |
+28,700
| New | +$2.05M |
|
2580
State Street SPDR S&P Retail ETF
XRT
$645M
| $1.64M | ﹤0.01% |
19,222
-19,117
| -50% | -$1.61M |
|
2581
Owens Corning
OC
$12.6B
| $1.64M | ﹤0.01% |
+14,627
| New | +$1.72M |
|
2582
iShares 7-10 Year Treasury Bond ETF
IEF
$47.1B
| $1.64M | ﹤0.01% |
+17,011
| New | +$1.65M |
|
2583
SiriusXM
SIRI
$9.61B
| $1.63M | ﹤0.01% |
+81,636
| New | +$1.75M |
|
2584
CALL
Helen of Troy
HELE
$682M
| $1.63M | ﹤0.01% |
76,500
+50,600
| +195% | +$1.03M |
|
2585
Fastenal
FAST
$60.1B
| $1.62M | ﹤0.01% |
+40,450
| New | +$1.7M |
|
2586
Shake Shack
SHAK
$2.9B
| $1.62M | ﹤0.01% |
19,990
-3,432
| -15% | -$303K |
|
2587
CALL
Sigma Lithium
SGML
$1.33B
| $1.62M | ﹤0.01% |
123,000
+18,400
| +18% | +$159K |
|
2588
Golar LNG
GLNG
$5.17B
| $1.62M | ﹤0.01% |
+43,522
| New | +$1.66M |
|
2589
CALL
CoreCivic
CXW
$3.35B
| $1.62M | ﹤0.01% |
84,700
+8,500
| +11% | +$156K |
|
2590
Sable Offshore Corp
SOC
$891M
| $1.62M | ﹤0.01% |
179,321
+104,757
| +140% | +$989K |
|
2591
PUT
American Superconductor
AMSC
$1.56B
| $1.62M | ﹤0.01% |
56,200
-33,700
| -37% | -$1.46M |
|
2592
CALL
Axcelis
ACLS
$4.18B
| $1.61M | ﹤0.01% |
20,100
-2,800
| -12% | -$234K |
|
2593
Invesco Dorsey Wright Technology Momentum ETF
PTF
$628M
| $1.61M | ﹤0.01% |
21,104
-1,101
| -5% | -$86K |
|
2594
Globe Life
GL
$14.1B
| $1.61M | ﹤0.01% |
+11,534
| New | +$1.56M |
|
2595
PUT
Skywest
SKYW
$4.19B
| $1.61M | ﹤0.01% |
+16,000
| New | +$1.6M |
|
2596
PUT
Freedom Holding
FRHC
$9.61B
| $1.61M | ﹤0.01% |
13,200
-5,200
| -28% | -$754K |
|
2597
PUT
SM Energy
SM
$7.73B
| $1.6M | ﹤0.01% |
85,800
+50,300
| +142% | +$1.02M |
|
2598
dLocal
DLO
$4.15B
| $1.6M | ﹤0.01% |
113,373
+22,881
| +25% | +$323K |
|
2599
PUT
McEwen Inc
MUX
$1.17B
| $1.6M | ﹤0.01% |
86,500
+8,200
| +10% | +$153K |
|
2600
PUT
Newell Brands
NWL
$2.62B
| $1.6M | ﹤0.01% |
430,400
+208,300
| +94% | +$841K |
|
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.