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 | |
|---|---|---|---|---|---|---|
2426
PUT
Qorvo
QRVO
$8.53B
| $2M | ﹤0.01% |
23,700
-10,600
| -31% | -$935K |
|
2427
Cemex
CX
$16.1B
| $2M | ﹤0.01% |
174,076
+46,255
| +36% | +$478K |
|
2428
Amer Sports
AS
$19.7B
| $2M | ﹤0.01% |
53,538
-79,624
| -60% | -$2.73M |
|
2429
CALL
FuelCell Energy
FCEL
$1.54B
| $2M | ﹤0.01% |
+273,100
| New | +$2.23M |
|
2430
POET Technologies
POET
$1.48B
| $1.99M | ﹤0.01% |
314,783
+153,705
| +95% | +$974K |
|
2431
PUT
Axcelis
ACLS
$4.18B
| $1.99M | ﹤0.01% |
24,800
-1,100
| -4% | -$92.1K |
|
2432
PUT
Build-A-Bear
BBW
$462M
| $1.99M | ﹤0.01% |
32,500
-400
| -1% | -$21.8K |
|
2433
Nutrien
NTR
$32.1B
| $1.99M | ﹤0.01% |
+32,225
| New | +$1.9M |
|
2434
PUT
Return Stacked Bonds & Managed Futures ETF
RSBT
$140M
| $1.99M | ﹤0.01% |
173,000
-442,200
| -72% | -$8.01M |
|
2435
PUT
Frontline
FRO
$8.49B
| $1.98M | ﹤0.01% |
90,900
+49,200
| +118% | +$1.15M |
|
|
HAPN
2436
CALL
Happen Inc
HAPN
$2.22B
| $1.98M | ﹤0.01% |
104,700
+58,200
| +125% | +$1.03M |
|
2437
Stride
LRN
$3.29B
| $1.98M | ﹤0.01% |
+30,515
| New | +$2.77M |
|
2438
PagSeguro Digital
PAGS
$2.48B
| $1.98M | ﹤0.01% |
205,298
-1,833
| -0.9% | -$17.6K |
|
2439
PUT
StoneCo
STNE
$2.42B
| $1.98M | ﹤0.01% |
133,800
+22,700
| +20% | +$380K |
|
2440
JetBlue
JBLU
$2.19B
| $1.98M | ﹤0.01% |
434,840
+191,534
| +79% | +$873K |
|
2441
PUT
Plains All American Pipeline
PAA
$16.3B
| $1.98M | ﹤0.01% |
110,100
-24,500
| -18% | -$416K |
|
2442
PUT
ARK Autonomous Technology & Robotics ETF
ARKQ
$2.07B
| $1.97M | ﹤0.01% |
+17,200
| New | +$1.98M |
|
2443
PUT
Western Union
WU
$2.2B
| $1.97M | ﹤0.01% |
211,800
+59,500
| +39% | +$526K |
|
2444
CALL
Liberty Energy
LBRT
$3.51B
| $1.97M | ﹤0.01% |
106,700
+44,200
| +71% | +$738K |
|
2445
Alaska Air
ALK
$5.4B
| $1.97M | ﹤0.01% |
39,097
+4,127
| +12% | +$191K |
|
2446
CALL
MKS Inc
MKSI
$19.9B
| $1.97M | ﹤0.01% |
12,300
-1,900
| -13% | -$282K |
|
|
BRSL
2447
PUT
Brightstar Lottery PLC
BRSL
$2.07B
| $1.96M | ﹤0.01% |
126,900
-22,000
| -15% | -$358K |
|
2448
AES
AES
$10.5B
| $1.96M | ﹤0.01% |
+136,859
| New | +$1.93M |
|
|
IONZ
2449
PUT
Defiance Daily Target 2x Short IONQ ETF
IONZ
$5.54M
| $1.96M | ﹤0.01% |
+118,400
| New | +$2.76M |
|
2450
ProShares UltraShort Bloomberg Natural Gas
KOLD
$99.4M
| $1.96M | ﹤0.01% |
+55,564
| New | +$1.74M |
|
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.