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 | |
|---|---|---|---|---|---|---|
1551
CALL
SL Green Realty
SLG
$3.9B
| $6.39M | ﹤0.01% |
139,300
+19,000
| +16% | +$938K |
|
1552
CALL
Aecom
ACM
$9.42B
| $6.38M | ﹤0.01% |
66,900
+41,900
| +168% | +$4.93M |
|
1553
PUT
Tractor Supply
TSCO
$18B
| $6.38M | ﹤0.01% |
127,500
-10,800
| -8% | -$582K |
|
1554
CALL
Ero Copper
ERO
$3.81B
| $6.37M | ﹤0.01% |
225,300
+192,800
| +593% | +$4.49M |
|
1555
PUT
Nutanix
NTNX
$17.4B
| $6.37M | ﹤0.01% |
123,200
-30,400
| -20% | -$1.86M |
|
1556
PUT
TotalEnergies
TTE
$195B
| $6.37M | ﹤0.01% |
97,300
+6,900
| +8% | +$436K |
|
1557
CALL
Textron
TXT
$15.3B
| $6.36M | ﹤0.01% |
73,000
-14,100
| -16% | -$1.18M |
|
1558
PUT
Pool Corp
POOL
$7.27B
| $6.36M | ﹤0.01% |
27,800
-1,500
| -5% | -$390K |
|
|
DQ
1559
CALL
Daqo New Energy
DQ
$989M
| $6.35M | ﹤0.01% |
215,400
+71,900
| +50% | +$2.19M |
|
1560
CALL
International Paper
IP
$21.9B
| $6.35M | ﹤0.01% |
161,200
-52,300
| -24% | -$2.15M |
|
1561
CALL
McEwen Inc
MUX
$1.18B
| $6.35M | ﹤0.01% |
343,000
+281,600
| +459% | +$5.24M |
|
1562
CALL
Molson Coors Class B
TAP
$7.93B
| $6.32M | ﹤0.01% |
135,400
+14,500
| +12% | +$669K |
|
1563
CALL
Polaris
PII
$3.97B
| $6.29M | ﹤0.01% |
99,400
+2,900
| +3% | +$191K |
|
|
1564
JD.com
JD
$45.2B
| $6.27M | ﹤0.01% |
218,543
-3,295,490
| -94% | -$103M |
|
1565
PUT
Sociedad Química y Minera de Chile
SQM
$20.8B
| $6.26M | ﹤0.01% |
91,000
+72,400
| +389% | +$3.99M |
|
1566
PUT
Allegro MicroSystems
ALGM
$7.91B
| $6.26M | ﹤0.01% |
237,300
-1,653,600
| -87% | -$45.5M |
|
|
GRMN
1567
CALL
Garmin
GRMN
$60.4B
| $6.25M | ﹤0.01% |
+30,800
| New | +$6.7M |
|
1568
CALL
Harrow
HROW
$1.52B
| $6.25M | ﹤0.01% |
127,500
+16,800
| +15% | +$705K |
|
1569
PUT
ARK Genomic Revolution ETF
ARKG
$1.78B
| $6.24M | ﹤0.01% |
215,500
+25,400
| +13% | +$762K |
|
1570
Nordson
NDSN
$17.2B
| $6.23M | ﹤0.01% |
+25,919
| New | +$6.09M |
|
1571
ProShares UltraShort S&P500
SDS
$369M
| $6.22M | ﹤0.01% |
90,844
+70,150
| +339% | +$4.95M |
|
1572
CleanSpark
CLSK
$2.97B
| $6.22M | ﹤0.01% |
614,200
+483,996
| +372% | +$7.25M |
|
|
MRSH
1573
CALL
Marsh
MRSH
$91B
| $6.21M | ﹤0.01% |
33,500
+13,700
| +69% | +$2.56M |
|
1574
PUT
iShares Core MSCI Emerging Markets ETF
IEMG
$155B
| $6.21M | ﹤0.01% |
82,800
+23,000
| +38% | +$1.54M |
|
1575
PUT
American Conservative Values ETF
ACVF
$157M
| $6.2M | ﹤0.01% |
301,000
-1,002,000
| -77% | -$49.3M |
|
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.